SN74LS259N Motorola, SN74LS259N Datasheet
SN74LS259N
Manufacturer Part Number
SN74LS259N
Description
8-BIT ADDRESSABLE LATCH
Manufacturer
Motorola
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8-BIT ADDRESSABLE LATCH
general purpose storage applications in digital systems. It is a multifunctional
device capable of storing single line data in eight addressable latches, and
also a 1-of-8 decoder and demultiplexer with active HIGH outputs. The device
also incorporates an active LOW common Clear for resetting all latches, as
well as, an active LOW Enable.
NOTES:
a) 1 TTL Unit Load (U.L.) = 40 A HIGH/1.6 mA LOW.
b) The Output LOW drive factor is 2.5 U.L. for Military (54) and 5 U.L. for Commercial
GUARANTEED OPERATING RANGES
PIN NAMES
A 0 , A 1 , A 2
D
E
C
Q 0 to Q 7
V CC
T A
I OH
I OL
(74) Temperature Ranges.
The SN54/ 74LS259 is a high-speed 8-Bit Addressable Latch designed for
Serial-to-Parallel Conversion
Eight Bits of Storage With Output of Each Bit Available
Random (Addressable) Data Entry
Active High Demultiplexing or Decoding Capability
Easily Expandable
Common Clear
Symbol
Supply Voltage
Operating Ambient Temperature Range
Output Current — High
Output Current — Low
Address lnputs
Data Input
Enable (Active LOW) Input
Clear (Active LOW) input
Parallel Latch Outputs (Note b)
CONNECTION DIAGRAM DIP (TOP VIEW)
V CC
16
A o
1
A 1
15
C
2
A 2
14
E
3
Q 0
D
13
Parameter
4
Q 7
12
Q 1
5
Q 6
Q 2
11
6
FAST AND LS TTL DATA
Q 5
10
Q 3
7
0.5 U.L.
0.5 U.L.
1.0 U.L.
0.5 U.L.
10 U.L.
HIGH
LOADING (Note a)
GND
Q 4
9
8
5-433
5 (2.5) U.L.
0.25 U.L.
0.25 U.L.
0.25 U.L.
LOW
0.5 U.L.
54, 74
54
74
54
74
54
74
4.75
– 55
Min
4.5
0
8-BIT ADDRESSABLE LATCH
16
16
SN54/74LS259
ORDERING INFORMATION
LOW POWER SCHOTTKY
16
1
SN54LSXXXJ
SN74LSXXXN
SN74LSXXXD
1
Typ
5.0
5.0
25
25
1
– 0.4
Max
5.25
125
5.5
4.0
8.0
70
Ceramic
Plastic
SOIC
CASE 751B-03
CASE 620-09
CASE 648-08
CERAMIC
N SUFFIX
D SUFFIX
J SUFFIX
PLASTIC
SOIC
Unit
mA
mA
V
C
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