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M74HC161 fiches techniques PDF

ST Microelectronics - SYNCHRONOUS PRESETTABLE 4-BIT COUNTER

Numéro de référence M74HC161
Description SYNCHRONOUS PRESETTABLE 4-BIT COUNTER
Fabricant ST Microelectronics 
Logo ST Microelectronics 





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M74HC161 fiche technique
M74HC161
SYNCHRONOUS PRESETTABLE 4-BIT COUNTER
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.)
t(ss SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 4mA (MIN)
ucs BALANCED PROPAGATION DELAYS:
dtPLH tPHL
ros WIDE OPERATING VOLTAGE RANGE:
PVCC (OPR) = 2V to 6V
s PIN AND FUNCTION COMPATIBLE WITH
te74 SERIES 161
oleDESCRIPTION
sThe M74HC161 is an high speed CMOS
bSYNCHRONOUS
4-BIT
BINARY
OPRESETTABLE COUNTER fabricated with silicon
-gate C2MOS technology.
t(s)The CLOCK input is active on the rising edge.
Both LOAD and CLEAR inputs are active LOW.
cPresetting is synchronous on the rising edge of
uthe clock, the function is cleared asynchronously.
DIP
SOP
TSSOP
ORDER CODES
PACKAGE
TUBE
DIP
SOP
TSSOP
M74HC161B1R
M74HC161M1R
T&R
M74HC161RM13TR
M74HC161TTR
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.
Obsolete ProdPIN CONNECTION AND IEC LOGIC SYMBOLS
July 2001
1/12

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