m74hc161 STMicroelectronics, m74hc161 Datasheet
m74hc161
Manufacturer Part Number
m74hc161
Description
Synchronous Presettable 4-bit Counter
Manufacturer
STMicroelectronics
Datasheet
1.M74HC161.pdf
(12 pages)
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DESCRIPTION
The M74HC161 is an high speed CMOS
SYNCHRONOUS
PRESETTABLE COUNTER fabricated with silicon
gate C
The CLOCK input is active on the rising edge.
Both LOAD and CLEAR inputs are active LOW.
Presetting is synchronous on the rising edge of
the clock, the function is cleared asynchronously.
PIN CONNECTION AND IEC LOGIC SYMBOLS
July 2001
HIGH SPEED :
f
LOW POWER DISSIPATION:
I
HIGH NOISE IMMUNITY:
V
SYMMETRICAL OUTPUT IMPEDANCE:
|I
BALANCED PROPAGATION DELAYS:
t
WIDE OPERATING VOLTAGE RANGE:
V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 161
MAX
CC
PLH
OH
NIH
CC
=4 A(MAX.) at T
| = I
2
(OPR) = 2V to 6V
MOS technology.
= 62 MHz (TYP.) at V
= V
t
PHL
OL
NIL
= 4mA (MIN)
= 28 % V
SYNCHRONOUS PRESETTABLE 4-BIT COUNTER
A
CC
=25°C
4-BIT
(MIN.)
CC
= 6V
BINARY
ORDER CODES
Two enable inputs (TE and PE) and CARRY
output are provided to enable easy cascading of
counters, which facilities easy implementation of
N-bit counters without using external gates.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
PACKAGE
TSSOP
SOP
DIP
DIP
M74HC161M1R
M74HC161B1R
TUBE
SOP
M74HC161
M74HC161RM13TR
M74HC161TTR
T & R
TSSOP
1/12
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