DUAL 4-INPUT MULTIPLEXER
MC74AC253, MC74ACT253
Dual 4-Input Multiplexer with 3-State Outputs
The MC74AC253/74ACT253 is a dual 4−input multiplexe...
Description
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
VCC OEb S0 I3b I2b I1b I0b Zb 16 15 14 13 12 11 10 9
12345678 OEa S1 I3a I2a I1a I0a Za GND
Figure 1. Pinout: 16−Lead Packages Conductors (Top View)
PIN NAME PIN I0a−I3a I0b−I3b S0, S1 OEa OEb Za, Zb
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
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16 1
16 1
MARKING DIAGRAMS
16 SOIC−16 D SUF...
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