74AC11157 Datasheet, PDF (1/5 Pages) NXP Semiconductors – QUAD 2 INPUT MULTIPLEXER

74AC11157
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER
• Flow-Through Architecture Optimizes
PCB Layout
• Center-Pin V_CC and GND Pin Configurations
Minimize High-Speed Switching Noise
• EPIC™ (Enhanced-Performance Implanted
CMOS) 1-µm Process
• 500-mA Typical Latch-Up Immunity at 125°C
• Package Options Include Plastic
Small-Outline Packages and Standard
Plastic 300-mil DIPs
description
This data selector/multiplexer contains inverters
and drivers to supply full data selection to the four
output gates. A separate strobe (G) input is
provided. A 4-bit word is selected from one of two
sources and is routed to the four outputs. The
74AC11157 provides true data.
The 74AC11157 is characterized for operation
from – 40°C to 85°C.
FUNCTION TABLE
INPUTS
OUTPUT
G A/B A
B
Y
H
X
X
X
L
L
L
L
X
L
L
L
H
X
H
L
H
X
L
L
L
H
X
H
H
logic symbol^†
10
G
1
A/B
20
1A
19
1B
18
2A
17
2B
14
3A
13
3B
12
4A
11
4B
EN
G1
1 ^MUX
1
2
1Y
3
2Y
8
3Y
9
4Y
SCAS183 – D2957, JULY 1989 – REVISED APRIL 1993
DW OR N PACKAGE
(TOP VIEW)
A/B ₁
1Y ₂
2Y 3
GND 4
GND 5
GND 6
GND 7
3Y 8
4Y 9
G 10
20 ^1A
19 ^1B
18 2A
17 2B
16 V_CC
15 V_CC
14 3A
13 3B
12 4A
11 4B
logic diagram (positive logic)
20
1A
19
1B
18
2A
17
2B
14
3A
13
3B
12
4A
11
4B
10
G
1
A/B
2
1Y
3 _2Y
8 _3Y
9
4Y
† _{This symbol is in accordance with ANSI/IEEE Std 91-1984}
and IEC Publication 617-12.
EPIC is a trademark of Texas Instruments Incorporated.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright © 1993, Texas Instruments Incorporated
2–1