74AC161集成电路（IC）的计数器除法器规格书PDF中文资料

74AC161属于集成电路（IC）的计数器除法器。由意法半导体集团制造生产的74AC161计数器，除法器计数器和除法器 IC 是数字逻辑器件，可对输入发生的逻辑转换进行计数，然后使用多个并行输出重新发送累加的计数，和/或生成单个输出信号转换，从而对应用某些整数数量输入信号转换进行响应。除了简单的事件计数，它们还可用于各种频率合成应用。

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=28VCC(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