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M74HC697F1R中文資料意法半導體數據手冊PDF規(guī)格書

M74HC697F1R
廠商型號

M74HC697F1R

功能描述

HC697/699 U/D 4 BIT BINARY COUNTER/REGISTER 3-STATE HC696/698 U/D DECADE COUNTER/REGISTER 3-STATE

文件大小

429.85 Kbytes

頁面數量

22

生產廠商 STMicroelectronics
企業(yè)簡稱

STMICROELECTRONICS意法半導體

中文名稱

意法半導體集團官網

原廠標識
數據手冊

下載地址一下載地址二到原廠下載

更新時間

2025-1-18 23:00:00

M74HC697F1R規(guī)格書詳情

The HC696/697 are high speed CMOS up/down counters fabricated with silicon gate C2MOS technology.

They achieve the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. The HC696/698 are BCD DECADE COUNTER, and the HC697/699 are 4-BIT BINARY COUNTER. Both devices have register.

They count on the positive edge of the counter clock input (CCK) when selected by the ”Counter Mode”. If the input U/D is held ”H”, the internal counter counts up, and held ”L”, counts down.

The internal counter’s outputs are stored in the output register at the positive edge of register clock (RCK). The counter features enable P and enable T and a ripple-carry output for easy expansion. the register/counter select input, R/C, selects the counter when low or the register when high for the three state outputs, QA, QB, Qc and QD.

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