參數(shù)資料
型號: 933756870652
廠商: NXP SEMICONDUCTORS
元件分類: 門電路
英文描述: HC/UH SERIES, DUAL 4-INPUT AND GATE, PDSO14
封裝: SO-14
文件頁數(shù): 4/6頁
文件大小: 33K
代理商: 933756870652
December 1990
4
Philips Semiconductors
Product specication
Dual 4-input AND gate
74HC/HCT21
Fig.4 Functional diagram.
Fig.5 Logic diagram (one gate).
FUNCTION TABLE
Notes
1. H = HIGH voltage level
L = LOW voltage level
X = don’t care
INPUTS
OUTPUT
nA
nB
nC
nD
nY
LX
X
L
XL
X
L
X
XLX
L
XX
X
L
HH
H
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