參數(shù)資料
型號: 935174860112
廠商: NXP SEMICONDUCTORS
元件分類: 總線收發(fā)器
英文描述: HC/UH SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDSO20
封裝: PLASTIC, TSSOP-20
文件頁數(shù): 4/8頁
文件大小: 59K
代理商: 935174860112
December 1990
4
Philips Semiconductors
Product specication
Octal D-type ip-op; positive edge-trigger;
3-state
74HC/HCT374
Fig.4 Functional diagram.
FUNCTION TABLE
Notes
1. H = HIGH voltage level
h = HIGH voltage level one set-up time prior to the LOW-to-HIGH
CP transition
L = LOW voltage level
I = LOW voltage level one set-up time prior to the LOW-to-HIGH CP
transition
Z = high impedance OFF-state
↑ = LOW-to-HIGH CP transition
OPERATING
MODES
INPUTS
INTERNAL
FLIP-FLOPS
OUTPUTS
OE
CP
Dn
Q0 to Q7
load and read
register
L
l
h
L
H
L
H
load register and
disable outputs
H
l
h
L
H
Z
Fig.5 Logic diagram.
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