DM74LS293N中文资料4-Bit Binary Counter数据手册TI规格书

描述 Description

General Description
The ’LS293 counter is electrically and functionally identical to the ’LS93. Only the arrangement of the terminals has been changed for the ’LS293.
Each of these monolithic counters contains four master slave flip-flops and additional gating to provide a divide-by two counter and a three-stage binary counter for which the count cycle length is divide-by-eight. All of these counters have a gated zero reset. To use the maximum count length (four-bit binary) of these counters, the B input is connected to the QA output. The input count pulses are applied to input A and the outputs are as described in the appropriate function table.

特性 Features

■ GND and VCC on Corner Pins (Pins 7 and 14 respectively)
■ Typical power dissipation 45 mW
■ Count frequency 42 MHz