tc74hc259afn TOSHIBA Semiconductor CORPORATION, tc74hc259afn Datasheet - Page 2

• Manufacturer Part Number: tc74hc259afn
• Description: 8-bit Addressable Latch
• Manufacturer: TOSHIBA Semiconductor CORPORATION

IEC Logic Symbol
Truth Table
D: The level at the data input.
QiO: The level before the indicared steady-state input conditions were established (i = 0, 1, .... 7)
CLEAR
C
H
H
H
H
L
L
L
L
H
H
L
L
Select Inputs
Inputs
H
H
H
H
B
L
L
L
L
G
H
H
L
L
A
H
H
H
H
L
L
L
L
Addressed
Output of
Latch
QiO
D
D
L
Latch Addressed
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Each Other
Output
QiO
QiO
L
L
8-Line Demultriplexer
Clear All Bits to “L”
Addressable Latch
Function
Memory
2
TC74HC259AP/AF/AFN
2007-10-01