® 74AC161
SYNCHRONOUS PRESETTABLE 4-BIT COUNTER
s HIGH SPEED: fMAX =125 MHz (TYP.) at VCC = 5V
s LOW POWER DISSIPATION...
® 74AC161
SYNCHRONOUS PRESETTABLE 4-BIT COUNTER
s HIGH SPEED: fMAX =125 MHz (TYP.) at VCC = 5V
s LOW POWER DISSIPATION: ICC = 8 µA (MAX.) at TA = 25 oC
s HIGH NOISE IMMUNITY: VNIH = VNIL = 28% VCC (MIN.)
s 50Ω TRANSMISSION LINE DRIVING CAPABILITY
s SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 24 mA (MIN)
s BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL
s OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 6V
s PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 161
s IMPROVED LATCH-UP IMMUNITY
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. The circuit have four fundamental modes of operation, in order of preference: synchronous
BM
(Plastic Package)
(Micro Package)
ORDER CODES :
74AC161B
74AC161M
reset, parallel load, ...