參數(shù)資料
型號(hào): 933835800005
廠商: NXP SEMICONDUCTORS
元件分類: 總線收發(fā)器
英文描述: HC/UH SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, UUC
封裝: DIE
文件頁數(shù): 3/6頁
文件大?。?/td> 46K
代理商: 933835800005
March 1988
3
Philips Semiconductors
Product specication
Octal bus transceiver; 3-state; inverting
74HC/HCT640
PIN DESCRIPTION
PIN NO.
SYMBOL
NAME AND FUNCTION
1
DIR
direction control
2, 3, 4, 5, 6, 7, 8, 9
A0 to A7
data inputs/outputs
10
GND
ground (0 V)
18, 17, 16, 15, 14, 13, 12, 11 B0 to B7
data inputs/outputs
19
OE
output enable input (active LOW)
20
VCC
positive supply voltage
Fig.1 Pin configuration.
Fig.2 Logic symbol.
Fig.3 IEC logic symbol.
Fig.4 Functional diagram.
FUNCTION TABLE
Note
1. H = HIGH voltage level
L = LOW voltage level
X = don’t care
Z = high impedance OFF-state
inputs
inputs/outputs
OE
DIR
An
Bn
L
H
L
H
X
A=B
inputs
Z
inputs
B=A
Z
相關(guān)PDF資料
PDF描述
933713670118 HCT SERIES, QUAD 1-BIT TRANSCEIVER, INVERTED OUTPUT, PDSO14
933824210005 HCT SERIES, QUAD 1-BIT TRANSCEIVER, INVERTED OUTPUT, UUC
935189830112 HC/UH SERIES, QUAD 1-BIT TRANSCEIVER, INVERTED OUTPUT, PDSO14
933713660112 HC/UH SERIES, QUAD 1-BIT TRANSCEIVER, INVERTED OUTPUT, PDSO14
933713660118 HC/UH SERIES, QUAD 1-BIT TRANSCEIVER, INVERTED OUTPUT, PDSO14
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