NSC 93L14DMQB Datasheet
93L14 Quad Latch
93L14 Quad Latch
June 1989
General Description
The 93L14 is a multifunctional 4-bit latch designed for general purpose storage applications in high speed digital systems. All outputs have active pull-up circuitry to provide high
capacitance drive and to provide low impedance in both
logic states for good noise immunity.
Connection Diagram
Dual-In-Line Package
Order Number 93L14DMQB or 93L14FMQB
See NS Package Number J16A or W16A
Pin Names Description
E Enable Input (Active LOW)
D0–D3 Data Inputs
S
0–S3 Set Inputs (Active LOW)
MR
Q0–Q3 Latch Outputs
TL/F/9612– 1
Master Reset Input (Active LOW)
Features
Y
Can be used as single input D latches or set/reset
latches
Y
Active low enable gate input
Y
Overriding master reset
Logic Symbol
V
CC
GND
e
e
Pin 16
Pin 8
TL/F/9612– 2
C
1995 National Semiconductor Corporation RRD-B30M105/Printed in U. S. A.
TL/F/9612
Absolute Maximum Ratings (Note)
Note:
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
Supply Voltage 7V
Input Voltage 5.5V
Operating Free Air Temperature Range
MIL
Storage Temperature Range
b
55§Ctoa125§C
b
65§Ctoa150§C
The ‘‘Absolute Maximum Ratings’’ are those values
beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The
parametric values defined in the ‘‘Electrical Characteristics’’
table are not guaranteed at the absolute maximum ratings.
The ‘‘Recommended Operating Conditions’’ table will define
the conditions for actual device operation.
Recommended Operating Conditions
Symbol Parameter
Min Nom Max
V
CC
V
IH
V
IL
I
OH
I
OL
T
A
Supply Voltage 4.5 5 5.5 V
High Level Input Voltage 2 V
Low Level Input Voltage 0.7 V
High Level Output Voltage
Low Level Output Current 4.8 mA
Free Air Operating Temperature
b
55 125
ts(H) Setup Time HIGH or LOW 10
t
(L) Dnto E 20
s
th(H) Hold Time HIGH or LOW 0
th(L) Dnto E 10
ts(H) Setup Time HIGH, Dnto S
th(L) Hold Time LOW, Dnto S
t
(L) E Pulse Width LOW 30 ns
w
n
n
15 ns
5ns
tw(L) MR Pulse Width LOW 25 ns
t
rec
Recovery Time, MR to E 5ns
93L14 (MIL)
b
400 mA
Units
C
§
ns
ns
2
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