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M74HCT157B1R

P1-P3P4-P6P7-P9
M74HCT157
4/9
DC SPECIFICATIONS
* : Applicable only to DIR, G, G input
AC ELECTRICAL CHARACTERISTICS (C
L
= 50 pF, Input t
r
= t
f
= 6ns)
Symbol Parameter
Test Condition Value
Unit
V
CC
(V)
T
A
= 25°C
-40 to 85°C -55 to 125°C
Min. Typ. Max. Min. Max. Min. Max.
V
IH
High Level Input
Voltage
4.5
to
5.5
2.0 2.0 2.0 V
V
IL
Low Level Input
Voltage
4.5
to
5.5
0.8 0.8 0.8 V
V
OH
High Level Output
Voltage
4.5
I
O
=-20 µA
4.4 4.5 4.4 4.4
V
I
O
=-4.0 mA
4.18 4.31 4.13 4.10
V
OL
Low Level Output
Voltage
4.5
I
O
=20 µA
0.0 0.1 0.1 0.1
V
I
O
=4.0 mA
0.17 0.26 0.33 0.40
I
I
Input Leakage
Current
5.5
V
I
= V
CC
or GND
± 0.1 ± 1 ± 1 µA
I
CC
Quiescent Supply
Current
5.5
V
I
= V
CC
or GND
44080µA
∆ I
CC
Additional Worst
Case Supply
Current
5.5 Per Input pin
V
I
= 0.5V or
V
I
= 2.4V
Other Inputs at
V
CC
or GND
I
O
= 0
2.0 2.9 3.0 mA
Symbol Parameter
Test Condition Value
Unit
V
CC
(V)
T
A
= 25°C
-40 to 85°C -55 to 125°C
Min. Typ. Max. Min. Max. Min. Max.
t
TLH
t
THL
Output Transition
Time
4.5 8151922ns
t
PLH
t
PHL
Propagation Delay
Time (A, B - Y)
4.5 16 25 31 38 ns
t
PLH
t
PHL
Propagation Delay
Time (SELECT - Y)
4.5 19 30 38 45 ns
t
PLH
t
PHL
Propagation Delay
Time (STROBE
-Y)
4.5 17 27 34 41 ns
Obsolete Product(s) - Obsolete Product(s)
M74HCT157
5/9
CAPACITIVE CHARACTERISTICS
1) C
PD
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I
CC(opr)
= C
PD
x V
CC
x f
IN
+ I
CC
/4(per chan-
nel)
TEST CIRCUIT
C
L
= 50pF or equivalent (includes jig and probe capacitance)
R
T
= Z
OUT
of pulse generator (typically 50Ω)
WAVEFORM : PROPAGATION DELAY TIMES (f=1MHz; 50% duty cycle)
Symbol Parameter
Test Condition Value
Unit
V
CC
(V)
T
A
= 25°C
-40 to 85°C -55 to 125°C
Min. Typ. Max. Min. Max. Min. Max.
C
IN
Input Capacitance
5.0 5101010pF
C
PD
Power Dissipation
Capacitance (note
1)
5.0 50 pF
Obsolete Product(s) - Obsolete Product(s)
M74HCT157
6/9
DIM.
mm. inch
MIN. TYP MAX. MIN. TYP. MAX.
a1 0.51 0.020
B 0.77 1.65 0.030 0.065
b 0.5 0.020
b1 0.25 0.010
D 20 0.787
E 8.5 0.335
e 2.54 0.100
e3 17.78 0.700
F 7.1 0.280
I 5.1 0.201
L 3.3 0.130
Z 1.27 0.050
Plastic DIP-16 (0.25) MECHANICAL DATA
P001C
Obsolete Product(s) - Obsolete Product(s)
P1-P3P4-P6P7-P9

M74HCT157B1R

Mfr. #:
Buy M74HCT157B1R
Manufacturer:
STMicroelectronics
Description:
IC MULTIPLEXER QUAD 2CHAN 16-DIP
Lifecycle:
New from this manufacturer.
Delivery:
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