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Электронный компонент: 74HC243D

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1.
General description
The 74HC243 is a high-speed Si-gate CMOS device and is pin compatible with low power
Schottky TTL (LSTTL). The 74HC243 is specified in compliance with JEDEC
standard no. 7A.
The 74HC243 is a quad bus transceiver featuring non-inverting 3-state bus compatible
outputs in both send and receive directions. The 74HC243 is designed for 4-line
asynchronous 2-way data communications between data buses.
The output enable inputs (OEA and OEB) can be used to isolate the buses.
The 74HC243 is similar to the 74HC242 but has non-inverting (true) outputs.
2.
Features
s
Non-inverting 3-state outputs
s
2-way asynchronous data bus communication
s
Low-power dissipation
s
Complies with JEDEC standard no. 7A
s
ESD protection:
x
HBM EIA/JESD22-A114-B exceeds 2000 V
x
MM EIA/JESD22-A115-A exceeds 200 V.
s
Multiple package options
s
Specified from
-
40
C to +80
C and from
-
40
C to +125
C.
74HC243
Quad bus transceiver; 3-state
Rev. 03 -- 12 November 2004
Product data sheet
9397 750 13808
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
2 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
3.
Quick reference data
[1]
C
PD
is used to determine the dynamic power dissipation (P
D
in
W).
P
D
= C
PD
V
CC
2
f
i
N +
(C
L
V
CC
2
f
o
) where:
f
i
= input frequency in MHz;
f
o
= output frequency in MHz;
C
L
= output load capacitance in pF;
V
CC
= supply voltage in V;
N = number of inputs switching;
(C
L
V
CC
2
f
o
) = sum of outputs.
4.
Ordering information
Table 1:
Quick reference data
GND = 0 V; T
amb
= 25
C; t
r
= t
f
= 6 ns.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
t
PHL
, t
PLH
propagation delay An to Bn;
Bn to An
C
L
= 15 pF; V
CC
= 5 V
-
6
-
ns
C
I
input capacitance
-
3.5
-
pF
C
I/O
input/output capacitance
-
10
-
pF
C
PD
power dissipation
capacitance per transceiver
V
I
= GND to V
CC
[1]
-
26
-
pF
Table 2:
Ordering information
Type number
Package
Temperature range
Name
Description
Version
74HC243N
-
40
C to +125
C
DIP14
plastic dual in-line package; 14 leads (300 mil)
SOT27-1
74HC243D
-
40
C to +125
C
SO14
plastic small outline package; 14 leads;
body width 3.9 mm
SOT108-1
74HC243DB
-
40
C to +125
C
SSOP14
plastic shrink small outline package; 14 leads;
body width 5.3 mm
SOT337-1
9397 750 13808
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
3 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
5.
Functional diagram
Fig 1.
Functional diagram
Fig 2.
Logic symbol
Fig 3.
IEC logic symbol
001aab953
ENABLE
EXITING
OEB
OEA
A0
B0
B1
A1
13
11
10
1
3
4
B2
A2
9
5
B3
A3
8
6
001aab950
ENABLE
EXITING
OEB
OEA
A0
B0
B3
A3
13
11
8
1
3
6
001aab951
1
13
EN1
1
2
11
3
10
4
9
5
8
6
EN2
9397 750 13808
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
4 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
6.
Pinning information
6.1 Pinning
6.2 Pin description
Fig 4.
Pin configuration
243
OEA
V
CC
n.c.
OEB
A0
n.c.
A1
B0
A2
B1
A3
B2
GND
B3
001aab948
1
2
3
4
5
6
7
8
10
9
12
11
14
13
Table 3:
Pin description
Symbol
Pin
Description
OEA
1
output enable input (active LOW)
n.c.
2
not connected
A0
3
data input or output
A1
4
data input or output
A2
5
data input or output
A3
6
data input or output
GND
7
ground (0 V)
B3
8
data output or input
B2
9
data output or input
B1
10
data output or input
B0
11
data output or input
n.c.
12
not connected
OEB
13
output enable input
V
CC
14
positive supply voltage
9397 750 13808
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
5 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
7.
Functional description
7.1 Function table
[1]
H = HIGH voltage level;
L = LOW voltage level;
Z = high-impedance OFF-state.
8.
Limiting values
[1]
Above 70
C: P
tot
derates linearly with 12 mW/K.
[2]
Above 70
C: P
tot
derates linearly with 8 mW/K.
Table 4:
Function table
[1]
Control
Input or output
OEA
OEB
An
Bn
L
L
input
B = A
H
L
Z
Z
L
H
Z
Z
H
H
A = B
input
Table 5:
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to
GND (ground = 0 V).
Symbol
Parameter
Conditions
Min
Max
Unit
V
CC
supply voltage
-
0.5
+7
V
I
IK
input diode current
V
I
<
-
0.5 V or V
I
> V
CC
+ 0.5 V
-
20
mA
I
OK
output diode current
V
O
<
-
0.5 V or
V
O
> V
CC
+ 0.5 V
-
20
mA
I
O
output source or sink
current
V
O
=
-
0.5 V to V
CC
+ 0.5 V
-
35
mA
I
CC
, I
GND
V
CC
or GND current
-
70
mA
T
stg
storage temperature
-
65
+150
C
P
tot
power dissipation
DIP14 package
[1]
-
750
mW
SO14 and SSOP16
packages
[2]
-
500
mW
9397 750 13808
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
6 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
9.
Recommended operating conditions
10. Static characteristics
Table 6:
Recommended operating conditions
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
V
CC
supply voltage
2.0
5.0
6.0
V
V
I
input voltage
0
-
V
CC
V
V
O
output voltage
0
-
V
CC
V
t
r
, t
f
input rise and fall
times
V
CC
= 2.0 V
-
-
1000
ns
V
CC
= 4.5 V
-
6.0
500
ns
V
CC
= 6.0 V
-
-
400
ns
T
amb
ambient
temperature
-
40
-
+125
C
Table 7:
Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
T
amb
= 25
C
V
IH
HIGH-level input voltage
V
CC
= 2.0 V
1.5
1.2
-
V
V
CC
= 4.5 V
3.15
2.4
-
V
V
CC
= 6.0 V
4.2
3.2
-
V
V
IL
LOW-level input voltage
V
CC
= 2.0 V
-
0.8
0.5
V
V
CC
= 4.5 V
-
2.1
1.35
V
V
CC
= 6.0 V
-
2.8
1.8
V
V
OH
HIGH-level output voltage
V
I
= V
IH
or V
IL
I
O
=
-
20
A; V
CC
= 2.0 V
1.9
2.0
-
V
I
O
=
-
20
A; V
CC
= 4.5 V
4.4
4.5
-
V
I
O
=
-
20
A; V
CC
= 6.0 V
5.9
6.0
-
V
I
O
=
-
6.0 mA; V
CC
= 4.5 V
3.98
4.32
-
V
I
O
=
-
7.8 mA; V
CC
= 6.0 V
5.48
5.81
-
V
V
OL
LOW-level output voltage
V
I
= V
IH
or V
IL
I
O
= 20
A; V
CC
= 2.0 V
-
0
0.1
V
I
O
= 20
A; V
CC
= 4.5 V
-
0
0.1
V
I
O
= 20
A; V
CC
= 6.0 V
-
0
0.1
V
I
O
= 6.0 mA; V
CC
= 4.5 V
-
0.15
0.26
V
I
O
= 7.8 mA; V
CC
= 6.0 V
-
0.16
0.26
V
I
LI
input leakage current
V
I
= V
CC
or GND; V
CC
= 6.0 V
-
-
0.1
A
I
OZ
3-state OFF-state current
V
I
= V
IH
or V
IL
; V
CC
= 6.0 V;
V
O
= V
CC
or GND
-
-
0.5
A
I
CC
quiescent supply current
V
I
= V
CC
or GND; I
O
= 0 A;
V
CC
= 6.0 V
-
-
8.0
A
C
I
input capacitance
-
3.5
-
pF
C
I/O
input/output capacitance
-
10
-
pF
9397 750 13808
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
7 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
T
amb
=
-
40
C to +85
C
V
IH
HIGH-level input voltage
V
CC
= 2.0 V
1.5
-
-
V
V
CC
= 4.5 V
3.15
-
-
V
V
CC
= 6.0 V
4.2
-
-
V
V
IL
LOW-level input voltage
V
CC
= 2.0 V
-
-
0.5
V
V
CC
= 4.5 V
-
-
1.35
V
V
CC
= 6.0 V
-
-
1.8
V
V
OH
HIGH-level output voltage
V
I
= V
IH
or V
IL
I
O
=
-
20
A; V
CC
= 2.0 V
1.9
-
-
V
I
O
=
-
20
A; V
CC
= 4.5 V
4.4
-
-
V
I
O
=
-
20
A; V
CC
= 6.0 V
5.9
-
-
V
I
O
=
-
6.0 mA; V
CC
= 4.5 V
3.84
-
-
V
I
O
=
-
7.8 mA; V
CC
= 6.0 V
5.34
-
-
V
V
OL
LOW-level output voltage
V
I
= V
IH
or V
IL
I
O
= 20
A; V
CC
= 2.0 V
-
-
0.1
V
I
O
= 20
A; V
CC
= 4.5 V
-
-
0.1
V
I
O
= 20
A; V
CC
= 6.0 V
-
-
0.1
V
I
O
= 6.0 mA; V
CC
= 4.5 V
-
-
0.33
V
I
O
= 7.8 mA; V
CC
= 6.0 V
-
-
0.33
V
I
LI
input leakage current
V
I
= V
CC
or GND; V
CC
= 6.0 V
-
-
1.0
A
I
OZ
3-state OFF-state current
V
I
= V
IH
or V
IL
; V
CC
= 6.0 V;
V
O
= V
CC
or GND
-
-
5.0
A
I
CC
quiescent supply current
V
I
= V
CC
or GND; I
O
= 0 A;
V
CC
= 6.0 V
-
-
80
A
T
amb
=
-
40
C to +125
C
V
IH
HIGH-level input voltage
V
CC
= 2.0 V
1.5
-
-
V
V
CC
= 4.5 V
3.15
-
-
V
V
CC
= 6.0 V
4.2
-
-
V
V
IL
LOW-level input voltage
V
CC
= 2.0 V
-
-
0.5
V
V
CC
= 4.5 V
-
-
1.35
V
V
CC
= 6.0 V
-
-
1.8
V
V
OH
HIGH-level output voltage
V
I
= V
IH
or V
IL
-
I
O
=
-
20
A; V
CC
= 2.0 V
1.9
-
-
V
I
O
=
-
20
A; V
CC
= 4.5 V
4.4
-
-
V
I
O
=
-
20
A; V
CC
= 6.0 V
5.9
-
-
V
I
O
=
-
6.0 mA; V
CC
= 4.5 V
3.7
-
-
V
I
O
=
-
7.8 mA; V
CC
= 6.0 V
5.2
-
-
V
Table 7:
Static characteristics
...continued
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
9397 750 13808
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
8 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
11. Dynamic characteristics
V
OL
LOW-level output voltage
V
I
= V
IH
or V
IL
-
I
O
= 20
A; V
CC
= 2.0 V
-
-
0.1
V
I
O
= 20
A; V
CC
= 4.5 V
-
-
0.1
V
I
O
= 20
A; V
CC
= 6.0 V
-
-
0.1
V
I
O
= 6.0 mA; V
CC
= 4.5 V
-
-
0.4
V
I
O
= 7.8 mA; V
CC
= 6.0 V
-
-
0.4
V
I
LI
input leakage current
V
I
= V
CC
or GND; V
CC
= 6.0 V
-
-
1.0
A
I
OZ
3-state OFF-state current
V
I
= V
IH
or V
IL
; V
CC
= 6.0 V;
V
O
= V
CC
or GND
-
-
10.0
A
I
CC
quiescent supply current
V
I
= V
CC
or GND; I
O
= 0 A;
V
CC
= 6.0 V
-
-
160
A
Table 7:
Static characteristics
...continued
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Table 8:
Dynamic characteristics
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF; R
L
= 1000
; see
Figure 8
.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
T
amb
= 25
C
t
PHL
, t
PLH
propagation delay An to Bn; Bn to An
see
Figure 5
V
CC
= 2.0 V
-
22
90
ns
V
CC
= 4.5 V
-
8
18
ns
V
CC
= 6.0 V
-
6
15
ns
V
CC
= 5.0 V; C
L
= 15 pF
-
6
-
ns
t
PZH
, t
PZL
3-state output enable time OEA to An or Bn;
OEB to An or Bn
see
Figure 6
and
7
V
CC
= 2.0 V
-
50
150
ns
V
CC
= 4.5 V
-
18
30
ns
V
CC
= 6.0 V
-
14
26
ns
t
PHZ
, t
PLZ
3-state output disable time OEA to An or Bn;
OEB to An or Bn
see
Figure 6
and
7
V
CC
= 2.0 V
-
61
165
ns
V
CC
= 4.5 V
-
22
33
ns
V
CC
= 6.0 V
-
18
28
ns
t
THL
, t
TLH
output transition time
see
Figure 5
V
CC
= 2.0 V
-
14
60
ns
V
CC
= 4.5 V
-
5
12
ns
V
CC
= 6.0 V
-
4
10
ns
C
PD
power dissipation capacitance per transceiver
V
I
= GND to V
CC
[1]
-
26
-
pF
T
amb
=
-
40
C to +85
C
t
PHL
, t
PLH
propagation delay An to Bn; Bn to An
see
Figure 5
V
CC
= 2.0 V
-
-
115
ns
V
CC
= 4.5 V
-
-
23
ns
V
CC
= 6.0 V
-
-
20
ns
9397 750 13808
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
9 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
[1]
C
PD
is used to determine the dynamic power dissipation (P
D
in
W).
P
D
= C
PD
V
CC
2
f
i
N +
(C
L
V
CC
2
f
o
) where:
f
i
= input frequency in MHz;
f
o
= output frequency in MHz;
C
L
= output load capacitance in pF;
V
CC
= supply voltage in V;
N = number of inputs switching;
(C
L
V
CC
2
f
o
) = sum of outputs.
t
PZH
, t
PZL
3-state output enable time OEA to An or Bn;
OEB to An or Bn
see
Figure 6
and
7
V
CC
= 2.0 V
-
-
190
ns
V
CC
= 4.5 V
-
-
38
ns
V
CC
= 6.0 V
-
-
33
ns
t
PHZ
, t
PLZ
3-state output disable time OEA to An or Bn;
OEB to An or Bn
see
Figure 6
and
7
V
CC
= 2.0 V
-
-
205
ns
V
CC
= 4.5 V
-
-
41
ns
V
CC
= 6.0 V
-
-
35
ns
t
THL
, t
TLH
output transition time
see
Figure 5
V
CC
= 2.0 V
-
-
75
ns
V
CC
= 4.5 V
-
-
15
ns
V
CC
= 6.0 V
-
-
13
ns
T
amb
=
-
40
C to +125
C
t
PHL
, t
PLH
propagation delay An to Bn; Bn to An
see
Figure 5
V
CC
= 2.0 V
-
-
135
ns
V
CC
= 4.5 V
-
-
27
ns
V
CC
= 6.0 V
-
-
23
ns
t
PZH
, t
PZL
3-state output enable time OEA to An or Bn;
OEB to An or Bn
see
Figure 6
and
7
V
CC
= 2.0 V
-
-
225
ns
V
CC
= 4.5 V
-
-
45
ns
V
CC
= 6.0 V
-
-
38
ns
t
PHZ
, t
PLZ
3-state output disable time OEA to An or Bn;
OEB to An or Bn
see
Figure 6
and
7
V
CC
= 2.0 V
-
-
250
ns
V
CC
= 4.5 V
-
-
50
ns
V
CC
= 6.0 V
-
-
43
ns
t
THL
, t
TLH
output transition time
see
Figure 5
V
CC
= 2.0 V
-
-
90
ns
V
CC
= 4.5 V
-
-
18
ns
V
CC
= 6.0 V
-
-
15
ns
Table 8:
Dynamic characteristics
...continued
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF; R
L
= 1000
; see
Figure 8
.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
9397 750 13808
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
10 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
12. Waveforms
V
M
= 0.5
V
I
.
Fig 5.
Waveforms showing the input (An and Bn) to output (Bn and An) propagation
delays and the output transition times
V
M
= 0.5
V
I
.
Fig 6.
Waveforms showing the 3-state enable and disable times for input OEA
001aab955
An, Bn
input
Bn, An
output
V
M
t
PHL
t
THL
t
TLH
t
PLH
V
M
V
M
OEA input
output
LOW to OFF
OFF to LOW
output
HIGH to OFF
OFF to HIGH
V
M
001aab959
t
f
t
r
90 %
10 %
t
PLZ
V
M
t
PZL
t
PHZ
t
PZH
10 %
90 %
outputs
disabled
outputs
enabled
outputs
enabled
9397 750 13808
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
11 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
V
M
= 0.5
V
I
.
Fig 7.
Waveforms showing the 3-state enable and disable times for input OEB
Test data is given in
Table 9
.
Definitions for test circuit:
R
L
= Load resistor.
C
L
= Load capacitance including jig and probe capacitance.
R
T
= Termination resistance should be equal to the output impedance Z
o
of the pulse
generator.
Fig 8.
Load circuitry for switching times
Table 9:
Test data
Supply
Input
Load
S
1
V
CC
V
I
t
r
= t
f
C
L
R
L
t
PZL
, t
PLZ
t
PZH
, t
PHZ
t
PHL
, t
PLH
2.0 V
V
CC
6 ns
50 pF
1 k
V
CC
GND
open
4.5 V
V
CC
6 ns
50 pF
1 k
V
CC
GND
open
6.0 V
V
CC
6 ns
50 pF
1 k
V
CC
GND
open
5.0 V
V
CC
6 ns
15 pF
1 k
V
CC
GND
open
V
M
OEB input
output
LOW to OFF
OFF to LOW
output
HIGH to OFF
OFF to HIGH
V
M
001aab956
t
f
t
r
90 %
10 %
t
PLZ
V
M
t
PZL
t
PHZ
t
PZH
10 %
90 %
outputs
disabled
outputs
enabled
outputs
enabled
open
GND
V
CC
V
CC
V
I
V
O
mna232
D.U.T.
CL
R
T
RL =
1000
PULSE
GENERATOR
S
1
9397 750 13808
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
12 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
13. Package outline
Fig 9.
Package outline SOT27-1 (DIP14)
UNIT
A
max.
1
2
(1)
(1)
b
1
c
D
(1)
Z
E
e
M
H
L
REFERENCES
OUTLINE
VERSION
EUROPEAN
PROJECTION
ISSUE DATE
IEC
JEDEC
JEITA
mm
inches
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
SOT27-1
99-12-27
03-02-13
A
min.
A
max.
b
max.
w
M
E
e
1
1.73
1.13
0.53
0.38
0.36
0.23
19.50
18.55
6.48
6.20
3.60
3.05
0.254
2.54
7.62
8.25
7.80
10.0
8.3
2.2
4.2
0.51
3.2
0.068
0.044
0.021
0.015
0.77
0.73
0.014
0.009
0.26
0.24
0.14
0.12
0.01
0.1
0.3
0.32
0.31
0.39
0.33
0.087
0.17
0.02
0.13
050G04
MO-001
SC-501-14
M
H
c
(e )
1
M
E
A
L
seating plane
A
1
w
M
b
1
e
D
A
2
Z
14
1
8
7
b
E
pin 1 index
0
5
10 mm
scale
Note
1. Plastic or metal protrusions of 0.25 mm (0.01 inch) maximum per side are not included.
DIP14: plastic dual in-line package; 14 leads (300 mil)
SOT27-1
9397 750 13808
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
13 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
Fig 10. Package outline SOT108-1 (SO14)
UNIT
A
max.
A
1
A
2
A
3
b
p
c
D
(1)
E
(1)
(1)
e
H
E
L
L
p
Q
Z
y
w
v
REFERENCES
OUTLINE
VERSION
EUROPEAN
PROJECTION
ISSUE DATE
IEC
JEDEC
JEITA
mm
inches
1.75
0.25
0.10
1.45
1.25
0.25
0.49
0.36
0.25
0.19
8.75
8.55
4.0
3.8
1.27
6.2
5.8
0.7
0.6
0.7
0.3
8
0
o
o
0.25
0.1
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
Note
1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included.
1.0
0.4
SOT108-1
X
w
M
A
A
1
A
2
b
p
D
H
E
L
p
Q
detail X
E
Z
e
c
L
v
M
A
(A )
3
A
7
8
1
14
y
076E06
MS-012
pin 1 index
0.069
0.010
0.004
0.057
0.049
0.01
0.019
0.014
0.0100
0.0075
0.35
0.34
0.16
0.15
0.05
1.05
0.041
0.244
0.228
0.028
0.024
0.028
0.012
0.01
0.25
0.01
0.004
0.039
0.016
99-12-27
03-02-19
0
2.5
5 mm
scale
SO14: plastic small outline package; 14 leads; body width 3.9 mm
SOT108-1
9397 750 13808
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
14 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
Fig 11. Package outline SOT337-1 (SSOP14)
UNIT
A
1
A
2
A
3
b
p
c
D
(1)
E
(1)
e
H
E
L
L
p
Q
Z
y
w
v
REFERENCES
OUTLINE
VERSION
EUROPEAN
PROJECTION
ISSUE DATE
IEC
JEDEC
JEITA
mm
0.21
0.05
1.80
1.65
0.25
0.38
0.25
0.20
0.09
6.4
6.0
5.4
5.2
0.65
1.25
0.2
7.9
7.6
1.03
0.63
0.9
0.7
1.4
0.9
8
0
o
o
0.13
0.1
DIMENSIONS (mm are the original dimensions)
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
SOT337-1
99-12-27
03-02-19
(1)
w
M
b
p
D
H
E
E
Z
e
c
v
M
A
X
A
y
1
7
14
8
A
A
1
A
2
L
p
Q
detail X
L
(A )
3
MO-150
pin 1 index
0
2.5
5 mm
scale
SSOP14: plastic shrink small outline package; 14 leads; body width 5.3 mm
SOT337-1
A
max.
2
9397 750 13808
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
15 of 17
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
14. Revision history
Table 10:
Revision history
Document ID
Release
date
Data sheet status
Change notice Doc. number
Supersedes
74HC243_3
20041112
Product data sheet
-
9397 750 13808
74HC_HCT243_CNV_2
Modifications:
The format of this data sheet has been redesigned to comply with the current presentation
and information standard of Philips Semiconductors.
Removed type number 74HCT243.
Inserted family specification.
74HC_HCT243_CNV_2
19970828
Product specification -
-
74HC_HCT243_1
74HC_HCT243_1
19901201
Product specification -
-
-
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
9397 750 13808
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 03 -- 12 November 2004
16 of 17
15. Data sheet status
[1]
Please consult the most recently issued data sheet before initiating or completing a design.
[2]
The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at
URL http://www.semiconductors.philips.com.
[3]
For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.
16. Definitions
Short-form specification -- The data in a short-form specification is
extracted from a full data sheet with the same type number and title. For
detailed information see the relevant data sheet or data handbook.
Limiting values definition -- Limiting values given are in accordance with
the Absolute Maximum Rating System (IEC 60134). Stress above one or
more of the limiting values may cause permanent damage to the device.
These are stress ratings only and operation of the device at these or at any
other conditions above those given in the Characteristics sections of the
specification is not implied. Exposure to limiting values for extended periods
may affect device reliability.
Application information -- Applications that are described herein for any
of these products are for illustrative purposes only. Philips Semiconductors
make no representation or warranty that such applications will be suitable for
the specified use without further testing or modification.
17. Disclaimers
Life support -- These products are not designed for use in life support
appliances, devices, or systems where malfunction of these products can
reasonably be expected to result in personal injury. Philips Semiconductors
customers using or selling these products for use in such applications do so
at their own risk and agree to fully indemnify Philips Semiconductors for any
damages resulting from such application.
Right to make changes -- Philips Semiconductors reserves the right to
make changes in the products - including circuits, standard cells, and/or
software - described or contained herein in order to improve design and/or
performance. When the product is in full production (status `Production'),
relevant changes will be communicated via a Customer Product/Process
Change Notification (CPCN). Philips Semiconductors assumes no
responsibility or liability for the use of any of these products, conveys no
license or title under any patent, copyright, or mask work right to these
products, and makes no representations or warranties that these products are
free from patent, copyright, or mask work right infringement, unless otherwise
specified.
18. Contact information
For additional information, please visit: http://www.semiconductors.philips.com
For sales office addresses, send an email to: sales.addresses@www.semiconductors.philips.com
Level
Data sheet status
[1]
Product status
[2] [3]
Definition
I
Objective data
Development
This data sheet contains data from the objective specification for product development. Philips
Semiconductors reserves the right to change the specification in any manner without notice.
II
Preliminary data
Qualification
This data sheet contains data from the preliminary specification. Supplementary data will be published
at a later date. Philips Semiconductors reserves the right to change the specification without notice, in
order to improve the design and supply the best possible product.
III
Product data
Production
This data sheet contains data from the product specification. Philips Semiconductors reserves the
right to make changes at any time in order to improve the design, manufacturing and supply. Relevant
changes will be communicated via a Customer Product/Process Change Notification (CPCN).
Koninklijke Philips Electronics N.V. 2004
All rights are reserved. Reproduction in whole or in part is prohibited without the prior
written consent of the copyright owner. The information presented in this document does
not form part of any quotation or contract, is believed to be accurate and reliable and may
be changed without notice. No liability will be accepted by the publisher for any
consequence of its use. Publication thereof does not convey nor imply any license under
patent- or other industrial or intellectual property rights.
Date of release: 12 November 2004
Document number: 9397 750 13808
Published in The Netherlands
Philips Semiconductors
74HC243
Quad bus transceiver; 3-state
19. Contents
1
General description . . . . . . . . . . . . . . . . . . . . . . 1
2
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
3
Quick reference data . . . . . . . . . . . . . . . . . . . . . 2
4
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
5
Functional diagram . . . . . . . . . . . . . . . . . . . . . . 3
6
Pinning information . . . . . . . . . . . . . . . . . . . . . . 4
6.1
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
6.2
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4
7
Functional description . . . . . . . . . . . . . . . . . . . 5
7.1
Function table . . . . . . . . . . . . . . . . . . . . . . . . . . 5
8
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 5
9
Recommended operating conditions. . . . . . . . 6
10
Static characteristics. . . . . . . . . . . . . . . . . . . . . 6
11
Dynamic characteristics . . . . . . . . . . . . . . . . . . 8
12
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
13
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 12
14
Revision history . . . . . . . . . . . . . . . . . . . . . . . . 15
15
Data sheet status . . . . . . . . . . . . . . . . . . . . . . . 16
16
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
17
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
18
Contact information . . . . . . . . . . . . . . . . . . . . 16