SN74LS258N

Manufacturer Part NumberSN74LS258N
ManufacturerFreescale Semiconductor, Inc
SN74LS258N datasheet
 


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QUAD 2-INPUT MULTIPLEXER
WITH 3-STATE OUTPUTS
The LSTTL / MSI SN54 / 74LS257B and the SN54 / 74LS258B are Quad
2-Input Multiplexers with 3-state outputs. Four bits of data from two sources
can be selected using a Common Data Select input. The four outputs present
the selected data in true (non-inverted) form. The outputs may be switched to
a high impedance state with a HIGH on the common Output Enable (E O ) In-
put, allowing the outputs to interface directly with bus oriented systems. It is
fabricated with the Schottky barrier diode process for high speed and is com-
pletely compatible with all Motorola TTL families.
Schottky Process For High Speed
Multiplexer Expansion By Tying Outputs Together
Non-Inverting 3-State Outputs
Input Clamp Diodes Limit High Speed Termination Effects
Special Circuitry Ensures Glitch Free Multiplexing
ESD > 3500 Volts
CONNECTION DIAGRAM DIP (TOP VIEW)
V CC
E 0
I 0c
I 1c
Z c
I 0d
I 1d
16
15
14
13
12
11
10
SN54/74LS257B
1
2
3
4
5
6
7
S
I 0a
I 1a
Z a
I 0b
I 1b
Z b
V CC
E 0
I 0c
I 1c
Z c
I 0d
I 1d
16
15
14
13
12
11
10
SN54/74LS258B
1
2
3
4
5
6
7
S
I 0a
I 1a
Z a
I 0b
I 1b
Z b
Z d
9
V CC = PIN 16
GND = PIN 8
8
GND
Z d
9
NOTE:
The Flatpak version
has the same pinouts
(Connection Diagram) as
the Dual In-Line Package.
8
GND
FAST AND LS TTL DATA
5-427
SN54/74LS257B
SN54/74LS258B
QUAD 2-INPUT MULTIPLEXER
WITH 3-STATE OUTPUTS
LOW POWER SCHOTTKY
J SUFFIX
CERAMIC
CASE 620-09
16
1
N SUFFIX
PLASTIC
CASE 648-08
16
1
D SUFFIX
SOIC
16
CASE 751B-03
1
ORDERING INFORMATION
SN54LSXXXJ
Ceramic
SN74LSXXXN
Plastic
SN74LSXXXD
SOIC

SN74LS258N Summary of contents