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M74HC161TTR Datasheet(PDF) 1 Page - STMicroelectronics

Part # M74HC161TTR
Description  SYNCHRONOUS PRESETTABLE 4-BIT COUNTER
PDF  12 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M74HC161TTR Datasheet(HTML) 1 Page - STMicroelectronics

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July 2001
s
HIGH SPEED :
fMAX = 62 MHz (TYP.) at VCC = 6V
s
LOW POWER DISSIPATION:
ICC =4µA(MAX.) at TA=25°C
s
HIGH NOISE IMMUNITY:
VNIH = VNIL = 28 % VCC (MIN.)
s
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 4mA (MIN)
s
BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL
s
WIDE OPERATING VOLTAGE RANGE:
VCC (OPR) = 2V to 6V
s
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 161
DESCRIPTION
The
M74HC161
is
an
high
speed
CMOS
SYNCHRONOUS
4-BIT
BINARY
PRESETTABLE COUNTER fabricated with silicon
gate C2MOS technology.
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.
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.
M74HC161
SYNCHRONOUS PRESETTABLE 4-BIT COUNTER
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
PACKAGE
TUBE
T & R
DIP
M74HC161B1R
SOP
M74HC161M1R
M74HC161RM13TR
TSSOP
M74HC161TTR
TSSOP
DIP
SOP


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