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