Philips
Semiconductors
74ALVT16244
2.5V/3.3V 16-bit buffer/driver (3-State)
Product specification
Supersedes data of 1998 Feb 13
IC23 Data Handbook
1998 Oct 07
INTEGRATED CIRCUITS
Philips Semiconductors
Product specification
74ALVT16244
2.5V/3.3V 16-bit buffer/driver (3-State)
2
853-1838 20144
1998 Oct 07
FEATURES
16-bit bus interface
5V I/O compatibile
3-State buffers
Output capability: +64mA/-32mA
TTL input and output switching levels
Input and output interface capability to systems at 5V supply
Bus-hold data inputs eliminate the need for external pull-up
resistors to hold unused inputs
Live insertion/extraction permitted
Power-up 3-State
No bus current loading when output is tied to 5V bus
Latch-up protection exceeds 500mA per JEDEC Std 17
ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 200V per Machine Model
DESCRIPTION
The 74ALVT16244 is a high-performance BiCMOS product
designed for V
CC
operation at 2.5V or 3.3V with I/O compatibility up
to 5V.
This device is a 16-bit buffer and line driver featuring non-inverting
3-State bus outputs. The device can be used as four 4-bit buffers,
two 8-bit buffers, or one 16-bit buffer.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
SYMBOL
PARAMETER
T
amb
= 25
C
2.5V
3.3V
UNIT
t
PLH
t
PHL
Propagation delay
nAx to nYx
C
L
= 50pF
1.8
1.9
1.5
1.5
ns
C
IN
Input capacitance DIR, OE
V
I
= 0V or V
CC
3
3
pF
C
Out
Output capacitance
V
I/O
= 0V or V
CC
9
9
pF
I
CCZ
Total supply current
Outputs disabled
40
70
A
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
DWG NUMBER
48-Pin Plastic SSOP Type III
40
C to +85
C
74ALVT16244 DL
AV16244 DL
SOT370-1
48-Pin Plastic TSSOP Type II
40
C to +85
C
74ALVT16244 DGG
AV16244 DGG
SOT362-1
LOGIC SYMBOL
1OE
1
1A0
47
1A1
46
1A2
44
1A3
43
2OE
48
2A0
41
2A1
2
40
2A2
38
3
2A3
37
5
6
1Y0
1Y1
1Y2
1Y3
2Y0
2Y1
2Y2
2Y3
8
9
11
12
3OE
25
3A0
36
3A1
35
3A2
33
3A3
32
4OE
24
4A0
30
4A1
13
29
4A2
27
14
4A3
26
16
17
3Y0
3Y1
3Y2
3Y3
4Y0
4Y1
4Y2
4Y3
19
20
22
23
SA00014
LOGIC SYMBOL (IEEE/IEC)
48
EN1
1
46
44
43
41
40
38
37
36
EN2
EN3
EN4
1
2
1
3
1
4
1
1
25
24
47
35
33
32
30
29
27
26
3
2
5
6
8
9
11
12
13
14
16
17
19
20
22
23
SA00019
1OE
2OE
3OE
4OE
1A1
1A2
1A3
1A4
2A1
2A2
2A3
3A1
3A2
3A3
3A4
4A1
4A2
4A3
4A4
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
3Y1
3Y2
3Y3
3Y4
4Y1
4Y4
2A4
4Y2
4Y3
Philips Semiconductors
Product specification
74ALVT16244
2.5V/3.3V 16-bit buffer/driver (3-State)
1998 Oct 07
3
PIN CONFIGURATION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1OE
1Y0
1Y1
GND
1Y2
1Y3
2Y0
2Y1
GND
2Y2
2Y3
3Y0
3Y1
GND
3Y4
VCC
4Y0
VCC
3Y2
4Y1
GND
4Y3
4OE
4Y2
2OE
1A0
1A1
GND
1A2
1A3
2A0
2A1
GND
2A2
2A3
3A0
3A1
GND
3A3
V
CC
4A0
VCC
3A2
4A1
GND
4A3
3OE
4A2
SA00013
PIN DESCRIPTION
PIN NUMBER
SYMBOL
NAME AND FUNCTION
47, 46, 44, 43
41, 40, 38, 37
36, 35, 33, 32
30, 29, 27, 26
1A0 - 1A3,
2A0 - 2A3,
3A0 - 3A3,
4A0 - 4A3
Data inputs
2, 3, 5, 6
8, 9, 11, 12
13, 14, 16, 17
19, 20, 22, 23
1Y0 - 1Y3,
2Y0 - 2Y3,
3Y0 - 3Y3,
4Y0 - 4Y3
Data outputs
1, 48
25, 24
1OE, 2OE,
3OE, 4OE
Output enables
4, 10, 15, 21
28, 34, 39, 45
GND
Ground (0V)
7, 18, 31, 42
V
CC
Positive supply voltage
FUNCTION TABLE
INPUTS
OUTPUTS
nOE
nAx
nYx
L
L
L
L
H
H
H
X
Z
H = High voltage level
L
= Low voltage level
X = Don't care
Z = High Impedance "off" state
ABSOLUTE MAXIMUM RATINGS
1, 2
SYMBOL
PARAMETER
CONDITIONS
RATING
UNIT
V
CC
DC supply voltage
-0.5 to +4.6
V
I
IK
DC input diode current
V
I
< 0
-50
mA
V
I
DC input voltage
3
-0.5 to +7.0
V
I
OK
DC output diode current
V
O
< 0
-50
mA
V
OUT
DC output voltage
3
Output in Off or High state
-0.5 to +7.0
V
I
OUT
DC output current
Output in Low state
128
mA
I
OUT
DC out ut current
Output in High state
-64
mA
T
stg
Storage temperature range
-65 to +150
C
NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability.
2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction
temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150
C.
3. The input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed.
Philips Semiconductors
Product specification
74ALVT16244
2.5V/3.3V 16-bit buffer/driver (3-State)
1998 Oct 07
4
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
2.5V RANGE LIMITS
3.3V RANGE LIMITS
UNIT
SYMBOL
PARAMETER
MIN
MAX
MIN
MAX
UNIT
V
CC
DC supply voltage
2.3
2.7
3.0
3.6
V
V
I
Input voltage
0
5.5
0
5.5
V
V
IH
High-level input voltage
1.7
2.0
V
V
IL
Input voltage
0.7
0.8
V
I
OH
High-level output current
8
32
mA
I
OL
Low-level output current
8
32
mA
I
OL
Low-level output current; current duty cycle
50%; f
1kHz
24
64
mA
t/
v
Input transition rise or fall rate; Outputs enabled
10
10
ns/V
T
amb
Operating free-air temperature range
40
+85
40
+85
C
DC ELECTRICAL CHARACTERISTICS (3.3V
"
0.3V RANGE)
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
Temp = -40
C to +85
C
UNIT
MIN
TYP
1
MAX
V
IK
Input clamp voltage
V
CC
= 3.0V; I
IK
= 18mA
0.85
1.2
V
V
OH
High-level output voltage
V
CC
= 3.0 to 3.6V; I
OH
= 100
A
V
CC
0.2
V
CC
V
V
OH
High-level out ut voltage
V
CC
= 3.0V; I
OH
= 32mA
2.0
2.3
V
V
CC
= 3.0V; I
OL
= 100
A
0.07
0.2
V
OL
Lowlevel output voltage
V
CC
= 3.0V; I
OL
= 16mA
0.25
0.4
V
V
OL
Lowlevel out ut voltage
V
CC
= 3.0V; I
OL
= 32mA
0.3
0.5
V
V
CC
= 3.0V; I
OL
= 64mA
0.4
0.55
V
CC
= 3.6V; V
I
= V
CC
or GND
Control pins
0.1
1
I
I
Input leakage current
V
CC
= 0 or 3.6V; V
I
= 5.5V
01.
10
A
I
I
In ut leakage current
V
CC
= 3.6V; V
I
= V
CC
Data pins
4
0.5
1
A
V
CC
= 3.6V; V
I
= 0V
Data ins
4
0.1
-5
I
OFF
Off current
V
CC
= 0V; V
I
or V
O
= 0 to 4.5V
0.1
100
A
Bus Hold current
V
CC
= 3V; V
I
= 0.8V
75
130
I
HOLD
Bus Hold current
Data inputs
6
V
CC
= 3V; V
I
= 2.0V
75
140
A
Data inputs
6
V
CC
= 0V to 3.6V; V
CC
= 3.6V
500
I
EX
Current into an output in the
High state when V
O
> V
CC
V
O
= 5.5V; V
CC
= 3.0V
10
125
A
I
PU/PD
Power up/down 3-State output
current
3
V
CC
1.2V; V
O
= 0.5V to V
CC
; V
I
= GND or V
CC
OE/OE = Don't care
1
100
A
I
OZH
3-State output High current
V
CC
= 3.6V; V
O
= 3.0V; V
I
= V
IL
or V
IH
0.5
5
A
I
OZL
3-State output Low current
V
CC
= 3.6V; V
O
= 0.5V; V
I
= V
IL
or V
IH
0.5
5
A
I
CCH
V
CC
= 3.6V; Outputs High, V
I
= GND or V
CC,
I
O
=
0
0.05
0.1
I
CCL
Quiescent supply current
V
CC
= 3.6V; Outputs Low, V
I
= GND or V
CC,
I
O
=
0
3.6
5
mA
I
CCZ
V
CC
= 3.6V; Outputs Disabled; V
I
= GND or V
CC,
I
O
= 0
5
0.06
0.1
I
CC
Additional supply current per
input pin
2
V
CC
= 3V to 3.6V; One input at V
CC
0.6V,
Other inputs at V
CC
or GND
0.04
0.4
mA
NOTES:
1. All typical values are at V
CC
= 3.3V and T
amb
= 25
C.
2. This is the increase in supply current for each input at the specified voltage level other than V
CC
or GND
3. This parameter is valid for any V
CC
between 0V and 1.2V with a transition time of up to 10msec. From V
CC
= 1.2V to V
CC
= 3.3V
0.3V a
transition time of 100
sec is permitted. This parameter is valid for T
amb
= 25
C only.
4. Unused pins at V
CC
or GND.
5. I
CCZ
is measured with outputs pulled up to V
CC
or pulled down to ground.
6. This is the bus hold overdrive current required to force the input to the opposite logic state.
Philips Semiconductors
Product specification
74ALVT16244
2.5V/3.3V 16-bit buffer/driver (3-State)
1998 Oct 07
5
AC CHARACTERISTICS (3.3V
"
0.3V RANGE)
GND = 0V; t
R
= t
F
= 2.5ns; C
L
= 50pF; R
L
= 500
; T
amb
= 40
C to +85
C.
LIMITS
SYMBOL
PARAMETER
WAVEFORM
V
CC
= 3.3V
"
0.3V
UNIT
MIN
TYP
1
MAX
t
PLH
t
PHL
Propagation delay
nAx to nYx
1
0.8
0.8
1.5
1.5
2.4
2.5
ns
t
PZH
t
PZL
Output enable time
to High and Low level
2
1.0
0.5
2.3
1.8
3.8
2.9
ns
t
PHZ
t
PLZ
Output disable time
from High and Low Level
2
1.5
1.5
2.7
2.3
4.2
3.6
ns
NOTE:
1. All typical values are at V
CC
= 3.3V and T
amb
= 25
C.
DC ELECTRICAL CHARACTERISTICS (2.5V
"
0.2V RANGE)
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
Temp = -40
C to +85
C
UNIT
MIN
TYP
1
MAX
V
IK
Input clamp voltage
V
CC
= 2.3V; I
IK
= 18mA
0.85
1.2
V
V
OH
High-level output voltage
V
CC
= 2.3 to 2.7V; I
OH
= 100
A
V
CC
0.2
V
CC
V
V
OH
High-level out ut voltage
V
CC
= 2.3V; I
OH
= 8mA
1.8
2.5
V
V
OL
Low-level output voltage
V
CC
= 2.3V; I
OL
= 100
A
0.07
0.2
V
OL
Low-level out ut voltage
V
CC
= 2.3V; I
OL
= 24mA
0.3
0.5
V
CC
= 2.7V; V
I
= V
CC
or GND
Control pins
0.1
1
I
I
Input leakage current
V
CC
= 0 or 2.7V; V
I
= 5.5V
0.1
10
A
I
I
In ut leakage current
V
CC
= 2.7V; V
I
= V
CC
Data pins
4
0.1
1
A
V
CC
= 2.7V; V
I
= 0
Data ins
4
0.1
-5
I
OFF
Off current
V
CC
= 0V; V
I
or V
O
= 0 to 4.5V
0.1
100
A
I
HOLD
Bus Hold current
V
CC
= 2.3V; V
I
= 0.7V
115
A
I
HOLD
Data inputs
6
V
CC
= 2.3V; V
I
= 1.7V
10
A
I
EX
Current into an output in the
High state when V
O
> V
CC
V
O
= 5.5V; V
CC
= 2.3V
10
125
A
I
PU/PD
Power up/down 3-State output
current
3
V
CC
1.2V; V
O
= 0.5V to V
CC
; V
I
= GND or V
CC
;
OE/OE = Don't care
1
100
A
I
OZH
3-State output High current
V
CC
= 2.7V; V
O
= 2.3V; V
I
= V
IL
or V
IH
0.5
5
A
I
OZL
3-State output Low current
V
CC
= 2.7V; V
O
= 0.5V; V
I
= V
IL
or V
IH
0.5
5
A
I
CCH
V
CC
= 2.7V; Outputs High, V
I
= GND or V
CC,
I
O
=
0
0.04
0.1
I
CCL
Quiescent supply current
V
CC
= 2.7V; Outputs Low, V
I
= GND or V
CC,
I
O
=
0
2.5
4.5
mA
I
CCZ
V
CC
= 2.7V; Outputs Disabled; V
I
= GND or V
CC,
I
O
=
0
5
0.04
0.1
I
CC
Additional supply current per
input pin
2
V
CC
= 2.3V to 2.7V; One input at V
CC
0.6V,
Other inputs at V
CC
or GND
0.04
0.4
mA
NOTES:
1. All typical values are at V
CC
= 2.5V and T
amb
= 25
C.
2. This is the increase in supply current for each input at the specified voltage level other than V
CC
or GND
3. This parameter is valid for any V
CC
between 0V and 1.2V with a transition time of up to 10msec. From V
CC
= 1.2V to V
CC
= 2.5V
0.2V a
transition time of 100
sec is permitted. This parameter is valid for T
amb
= 25
C only.
4. Unused pins at V
CC
or GND.
5. I
CCZ
is measured with outputs pulled up to V
CC
or pulled down to ground.
6. Not guaranteed.
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