参数资料
型号: 74LS259
厂商: Fairchild Semiconductor Corporation
英文描述: 8-Bit Addressable Latches
中文描述: 8位寻址锁存
文件页数: 2/6页
文件大小: 59K
代理商: 74LS259
www.fairchildsemi.com
2
DM74LS259
Connection Diagram
Function Table
Latch Selection Table
H
= HIGH Level
L
= LOW Level
D
= the Level of the Data Input
Qi0 = the Level of Qi (i = 0, 1,…7, as Appropriate) before the Indicated
Steady-State Input Conditions Were Established.
Inputs
Output of
Each
Addressed
Other
Function
Clear
E
Latch
Output
HL
D
Qi0
Addressable Latch
HH
Qi0
Memory
L
D
L
8-Line Demultiplexer
L
H
L
Clear
Select Inputs
Latch
C
B
A
Addressed
LLL
0
LL
H
1
LH
L
2
LH
H
3
HL
L
4
HL
H
5
HH
L
6
HHH
7
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