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74HC158D Datasheet Preview

74HC158D Datasheet

Quad 2-input multiplexer

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74HC158
Quad 2-input multiplexer; inverting
Rev. 4 — 23 December 2015
Product data sheet
1. General description
The 74HC158 is a high-speed Si-gate CMOS device and is pin compatible with low power
Schottky TTL (LSTTL). The 74HC158 is specified in compliance with JEDEC
standard no. 7A.
The 74HC158 is a quad 2-input multiplexer which select 4 bits of data from two sources
and are controlled by a common data select input (S). The four outputs present the
selected data in the inverted form. The enable input (E) is active LOW.
When E is HIGH, all the outputs (1Y to 4Y) are forced HIGH regardless of all other input
conditions.
Moving the data from two groups of registers to four common output buses is a common
use of the 74HC158. The state of S determines the particular register from which the data
comes. It can also be used as a function generator.
The device is useful for implementing highly irregular logic by generating any four of the
16 different functions of two variables with one variable common.
The 74HC158 is the logic implementation of a 4-pole, 2-position switch, where the
position of the switch is determined by the logic levels applied to S.
The logic equations for the output are:
1Y = E.(1l1.S 1l0.S)
2Y = E.(2l1.S 2l0.S)
3Y = E.(3l1.S 3l0.S)
4Y = E.(4l1.S 4l0.S)
The 74HC158 is identical to the 74HC157 but has inverting outputs.
2. Features and benefits
Low-power dissipation
Inverting data path
Complies with JEDEC standard no. 7A
ESD protection:
HBM JESD22-A114F exceeds 2 000 V
MM JESD22-A115-A exceeds 200 V
Multiple package options
Specified from 40° C to +85 °C and 40 °C to +125 °C




nexperia

74HC158D Datasheet Preview

74HC158D Datasheet

Quad 2-input multiplexer

No Preview Available !

Nexperia
3. Ordering information
Table 1. Ordering information
Type number Package
Temperature range
74HC158D
40 C to +125 C
Name
SO16
4. Functional diagram
74HC158
Quad 2-input multiplexer; inverting
Description
plastic small outline package; 16 leads;
body width 3.9 mm
Version
SOT109-1
Fig 1. Functional diagram
2 3 5 6 11 10 14 13
1I0 1I1 2I0 2I1 3I0 3I1 4I0 4I1
1S
MULTIPLEXER
15 E
OUTPUTS
1Y
2Y
3Y
4
7
9
4Y
12
DDE
1
S
2 1I0
3 1I1
1Y 4
5 2I0
6 2I1
2Y 7
11 3I0
10 3I1
3Y 9
14 4I0
13 4I1
4Y 12
15 E
DDE
Fig 2. Logic symbol
1 G1
15 EN
2 1 MUX
4
31
5
7
6
14
12
13
11
9
10
DDE
Fig 3. IEC logic symbol
74HC158
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 23 December 2015
.
2 of 16
© Nexperia B.V. 2017. All rights reserved


Part Number 74HC158D
Description Quad 2-input multiplexer
Maker nexperia
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74HC158D Datasheet PDF






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