NSC 5962-9165401VYA, 5962-9165401VXA, 5962-9165401MYA, 5962-9165401MXA Datasheet

100355 Low Power Quad Multiplexer/Latch
General Description
The 100355 contains four transparent latches, each of which can accept and store data from two sources. When both En­able (E
n
) inputs are LOW, the data that appears at an output is controlled by the Select (Sn) inputs, as shown in the Oper­ating Mode table. In addition to routing data from either D
0
or
D
1
, the Select inputs can force the outputs LOW for the case where the latch is transparent (both Enables are LOW) and can steer a HIGH signal from either D
0
or D1to an output. The Select inputs can be tied together for applications re­quiring only that data be steered from either D
0
or D1.A
positive-going signal on either Enable input latches the out-
puts. A HIGH signal on the Master Reset (MR) input over­rides all the other inputs and forces the Q outputs LOW. All inputs have 50 kpulldown resistors.
Features
n Greater than 40%power reduction of the 100155 n 2000V ESD protection n Pin/function compatible with 100155 n Voltage compensated operating range=−4.2V to −5.7V n Standard Microcircuit Drawing
(SMD) 5962-9165401
Logic Symbol
Pin Names Description
E
1,E2
Enable Inputs (Active LOW)
S
0,S1
Select Inputs MR Master Reset D
na–Dnd
Data Inputs Q
a–Qd
Data Outputs Q
a–Qd
Complementary Data Outputs
Connection Diagrams
DS100294-1
24-Pin DIP
DS100294-2
24-Pin Quad Cerpak
DS100294-3
August 1998
100355 Low Power Quad Multiplexer/Latch
© 1998 National Semiconductor Corporation DS100294 www.national.com
Logic Diagram
DS100294-5
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Operating Mode Table
Controls Outputs
E
1E2S1S0
Q
n
H X X X Latched (Note 1) X H X X Latched (Note 1) LLLL D
0x
LLHL D0x+D
1x
LLLH L LLHH D
1x
H=HIGH Voltage Level L=LOW Voltage Level
X=Don’t Care
Note 1: Stores data present before E went HIGH
Truth Table
Inputs Outputs
MR E
1E2S1S0D1xD0xQx
Q
x
HXXXXXX H L LLLHHHX L H LLLHHLXH L LLLLLXH L H LLLLLXL H L LLLLHXX H L LLLHLHX L H LLLHLXH L H LLLHLL L H L L H X X X X X Latched (Note 1) L X H X X X X Latched (Note 1)
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