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74ACT161
SYNCHRONOUS PRESETTABLE 4-BIT COUNTER
s HIGH SPEED: fMAX = 290MHz (TYP.) at VCC = 5V
s LOW POWER DISSIPATION: ICC = 8µA(MAX.) at TA=25°C
s COMPATIBLE WITH TTL OUTPUTS VIH = 2V (MIN.), VIL = 0.8V (MAX.)
s 50Ω TRANSMISSION LINE DRIVING CAPABILITY
s SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 24mA (MIN)
s BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL
s OPERATING VOLTAGE RANGE: VCC (OPR) = 4.5V to 5.5V
s PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 161
s IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The 74ACT161 is an advanced high-speed CMOS SYNCRONOUS PRESETTABLE COUNTER fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS tecnology. It is a 4 bit binary counter with Asynchronous Clear.