參數(shù)資料
型號: 74HC4516DB
廠商: NXP SEMICONDUCTORS
元件分類: 通用總線功能
英文描述: Binary up/down counter
中文描述: HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16
文件頁數(shù): 4/14頁
文件大小: 100K
代理商: 74HC4516DB
December 1990
4
Philips Semiconductors
Product specification
Binary up/down counter
74HC/HCT4516
Fig.4 Functional diagram.
FUNCTION TABLE
Notes
1.
H = HIGH voltage level
L = LOW voltage level
X = don’t care
= LOW-to-HIGH clock transition
MR
PL
UP/DN
CE
CP
MODE
L
L
L
L
H
H
L
L
L
X
X
X
L
H
X
X
H
L
L
X
X
X
X
parallel load
no change
count down
count up
reset
Fig.5 Timing diagram.
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