參數(shù)資料
型號(hào): 74HC191
廠商: Texas Instruments, Inc.
元件分類: 通用總線功能
英文描述: SN54HC191, SN74HC191 4-BIT SYNCHRONOUS UP/DOWN BINARY COUNTERS
中文描述: SN54HC191,SN74HC191 4位同步向上/向下二進(jìn)制計(jì)數(shù)器
文件頁數(shù): 7/14頁
文件大?。?/td> 108K
代理商: 74HC191
December 1990
7
Philips Semiconductors
Product specification
Presettable synchronous 4-bit binary
up/down counter
74HC/HCT191
Fig.8
Typical load, count and
inhibit sequence.
Sequence
Load (preset) to binary thirteen;
count up to fourteen, fifteen,
zero, one and two;
inhibit;
count down to one, zero, fifteen,
fourteen and thirteen.
Fig.9 Logic diagram.
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