MC74AC253_15 Datasheet, PDF (1/9 Pages) ON Semiconductor – Dual 4-Input Multiplexer with 3-State Outputs

MC74AC253, MC74ACT253
Dual 4-Input Multiplexer
with 3-State Outputs
The MC74AC253/74ACT253 is a dual 4−input multiplexer with
3−state outputs. It can select two bits of data from four sources using
common select inputs. The outputs may be individually switched to a
high impedance state with a HIGH on the respective Output Enable
(OE) inputs, allowing the outputs to interface directly with bus
oriented systems.
• Multifunctional Capability
• Noninverting 3−State Outputs
• Outputs Source/Sink 24 mA
• ′ACT253 Has TTL Compatible Inputs
• These are Pb−Free Devices
V_CC OE_b S₀ I_3b I_2b I_1b I_0b Z_b
16 15 14 13 12 11 10 9
12345678
OE_a S₁ I_3a I_2a I_1a I_0a Z_a GND
Figure 1. Pinout: 16−Lead Packages Conductors
(Top View)
PIN NAME
PIN
I_0a−I_3a
I_0b−I_3b
S₀, S₁
OE_a
OE_b
Z_a, Z_b
FUNCTION
Side A Data Inputs
Side B Data Inputs
Common Select Inputs
Side A Output Enable Input
Side B Output Enable Input
3−State Outputs
www.onsemi.com
16
1
16
1
MARKING
DIAGRAMS
16
SOIC−16
D SUFFIX
CASE 751B
1
xxx253G
AWLYWW
TSSOP−16
DT SUFFIX
CASE 948F
16
xxx
253
ALYWG
G
1
xxx
= AC or ACT
A
= Assembly Location
WL or L = Wafer Lot
Y
= Year
WW or W = Work Week
G or G = Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
© Semiconductor Components Industries, LLC, 2015
1
March, 2015 − Rev. 7
Publication Order Number:
MC74AC253/D