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74AC161B

  

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74AC161B [SYNCHRONOUS PRESETTABLE 4-BIT COUNTER ]

other parts : 74AC161  74AC161M 

ST-Microelectronics
STMicroelectronics

DESCRIPTION
The AC161 is a high-speed CMOS SYNCRONOUS PRESETTABLE COUNTER fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology.It is ideal for low power applications mantaining high speed operation similar to eqivalent Bipolar Schottky TTL. It is a 4 bit binary counter with Asynchronous Clear.

■ HIGH SPEED: fMAX=125 MHz (TYP.) at VCC=5V
■ LOW POWER DISSIPATION: ICC=8µA (MAX.) at TA=25°C
■ HIGH NOISE IMMUNITY: VNIH=VNIL=28%VCC(MIN.)
■ 50Ω TRANSMISSION LINE DRIVING CAPABILITY
■ SYMMETRICAL OUTPUT IMPEDANCE: |IOH|=IOL= 24 mA (MIN)
■ BALANCED PROPAGATION DELAYS: tPLH≅tPHL
■ OPERATING VOLTAGE RANGE: VCC(OPR) = 2V to 6V
■ PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 161
■ IMPROVED LATCH-UP IMMUNITY

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