MC74AC253
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 mon 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 m A
- ′ACT253 Has TTL patible 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 mon Select Inputs Side A Output Enable Input Side B Output Enable Input 3- State Outputs
.onsemi.
16 1
16 1
MARKING DIAGRAMS
16 SOIC- 16 D...
