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Электронный компонент: M74HC299RM13TR

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1/13
July 2001
s
HIGH SPEED :
f
MAX
= 80MHz (TYP.) at V
CC
= 6V
s
LOW POWER DISSIPATION:
I
CC
=4
A(MAX.) at T
A
=25C
s
HIGH NOISE IMMUNITY:
V
NIH
= V
NIL
= 28 % V
CC
(MIN.)
s
SYMMETRICAL OUTPUT IMPEDANCE:
|I
OH
| = I
OL
= 6mA (MIN) FOR QA' TO QH'
|I
OH
| = I
OL
= 4mA (MIN) FOR QA TO QH
s
BALANCED PROPAGATION DELAYS:
t
PLH
t
PHL
s
WIDE OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 2V to 6V
s
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 299
DESCRIPTION
The M74HC299 is an high speed CMOS 8 BIT
PIPO SHIFT REGISTER (3-STATE) fabricated
with silicon gate C
2
MOS technology.
This device has four modes (HOLD, SHIFT LEFT,
SHIFT RIGHT and LOAD DATA). Each mode is
chosen by two function select inputs (S0, S1).
When one or both enable inputs, (G1, G2) are
high, the eight input/output terminals are in the
high impedance state; however sequential
operation or clearing of the register is not affected.
Clear function on the M74HC299 is asynchronous
to CLOCK.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
M74HC299
8 BIT PIPO SHIFT REGISTER
WITH ASYNCHRONOUS CLEAR
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
PACKAGE
TUBE
T & R
DIP
M74HC299B1R
SOP
M74HC299M1R
M74HC299RM13TR
TSSOP
M74HC299TTR
TSSOP
DIP
SOP
M74HC299
2/13
IINPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
TRUTH TABLE
* When one or both output controls are high, the eight input/output terminals are in the high impedance state: however sequential operation
or clearing of the register is not affected.
Z : High Impedance
Qn0 : The level of An before the indicated steady state input conditions were established.
Qnn : The level of Qn before the most recent active transition indicated by
OR
a, h : The level of the steady state inputs A, H, respectively.
X : Don't Care
PIN No
SYMBOL
NAME AND FUNCTION
1, 19
S0, S1
Mode Select Inputs
2, 3
G1, G2
3-State Output Enable Inputs (Active LOW)
7, 13, 6, 14, 5, 15, 4, 16
A/QA to H/QH
Parallel Data Inputs or 3-State Parallel Outputs (Bus Driver)
8, 17
QA' to QH'
Serial Outputs (Standard Output)
9
CLEAR
Asynchronous Master Reset Input (Active LOW)
11
SR
Serial Data Shift Right Input
12
CLOCK
Clock Input (LOW to HIGH, Edge-triggered)
18
SL
Serial Data Shift Left Input
10
GND
Ground (0V)
20
V
CC
Positive Supply Voltage
MODE
INPUTS
INPUTS/OUTPUTS
OUTPUTS
CLEAR
FUNCTION
SELECTED
OUTPUT
CONTROL
CLOCK
SERIAL
A/QA
H/QH
QA'
QH'
S1
S0
G1*
G2*
SL
SR
Z
L
H
H
X
X
X
X
X
Z
Z
L
L
CLEAR
L
L
X
L
L
X
X
X
L
L
L
L
L
X
L
L
L
X
X
X
L
L
L
L
HOLD
H
L
L
L
L
X
X
X
QA0
QH0
QA0
QH0
SHIFT
RIGHT
H
L
H
L
L
X
H
H
QGn
H
QGn
H
L
H
L
L
X
L
L
QGn
L
QGn
SHIFT
LEFT
H
H
L
L
L
H
X
QBn
H
QBn
H
H
H
L
L
L
L
X
QBn
L
QBn
L
LOAD
H
H
H
X
X
X
X
a
h
a
h
M74HC299
3/13
LOGIC DIAGRAM
M74HC299
4/13
TIMING CHART
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not t implied
(*) 500mW at 65
C; derate to 300mW by 10mW/
C from 65
C to 85
C
Symbol
Parameter
Value
Unit
V
CC
Supply Voltage
-0.5 to +7
V
V
I
DC Input Voltage
-0.5 to V
CC
+ 0.5
V
V
O
DC Output Voltage
-0.5 to V
CC
+ 0.5
V
I
IK
DC Input Diode Current
20
mA
I
OK
DC Output Diode Current
20
mA
I
O
DC Output Source Sink Current Per Output Pin (QA-QH)
35
mA
I
O
DC Output Source Sink Current Per Output Pin (QA'-QH')
235
mA
I
CC
or I
GND
DC V
CC
or Ground Current
70
mA
P
D
Power Dissipation
500(*)
mW
T
stg
Storage Temperature
-65 to +150
C
T
L
Lead Temperature (10 sec)
300
C
M74HC299
5/13
RECOMMENDED OPERATING CONDITIONS
DC SPECIFICATIONS
Symbol
Parameter
Value
Unit
V
CC
Supply Voltage
2 to 6
V
V
I
Input Voltage
0 to V
CC
V
V
O
Output Voltage
0 to V
CC
V
T
op
Operating Temperature
-55 to 125
C
t
r
, t
f
Input Rise and Fall Time
V
CC
= 2.0V
0 to 1000
ns
V
CC
= 4.5V
0 to 500
ns
V
CC
= 6.0V
0 to 400
ns
Symbol
Parameter
Test Condition
Value
Unit
V
CC
(V)
T
A
= 25C
-40 to 85C
-55 to 125C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
V
IH
High Level Input
Voltage
2.0
1.5
1.5
1.5
V
4.5
3.15
3.15
3.15
6.0
4.2
4.2
4.2
V
IL
Low Level Input
Voltage
2.0
0.5
0.5
0.5
V
4.5
1.35
1.35
1.35
6.0
1.8
1.8
1.8
V
OH
High Level Output
Voltage
2.0
I
O
=-20
A
1.9
2.0
1.9
1.9
V
4.5
I
O
=-20
A
4.4
4.5
4.4
4.4
6.0
I
O
=-20
A
5.9
6.0
5.9
5.9
QA to QH
4.5
I
O
=-6.0 mA
4.18
4.31
4.13
4.10
6.0
I
O
=-7.8 mA
5.68
5.8
5.63
5.60
QA' to QH'
4.5
I
O
=-4.0 mA
4.18
4.31
4.13
4.10
6.0
I
O
=-5.2 mA
5.68
5.8
5.63
5.60
V
OL
Low Level Output
Voltage
2.0
I
O
=20
A
0.0
0.1
0.1
0.1
V
4.5
I
O
=20
A
0.0
0.1
0.1
0.1
6.0
I
O
=20
A
0.0
0.1
0.1
0.1
QA to QH
4.5
I
O
=6.0 mA
0.17
0.26
0.33
0.40
6.0
I
O
=7.8 mA
0.18
0.26
0.33
0.40
QA' to QH'
4.5
I
O
=4.0 mA
0.17
0.26
0.33
0.40
6.0
I
O
=5.2 mA
0.18
0.26
0.33
0.40
I
I
Input Leakage
Current
6.0
V
I
= V
CC
or GND
0.1
1
1
A
I
OZ
High Impedance
Output Leakage
Current
6.0
V
I
= V
IH
or V
IL
V
O
= V
CC
or GND
0.5
5
10
A
I
CC
Quiescent Supply
Current
6.0
V
I
= V
CC
or GND
4
40
80
A