MC74VHCT257A: Quad 2-Channel Multiplexer (Mux) with 3-State Outputs

Datasheet: Quad 2-Channel Multiplexer with 3-State Outputs
Rev. 7 (96kB)
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The MC74VHCT257A is an advanced high speed CMOS quad 2-channel multiplexer fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation.

It consists of four 2-input digital multiplexers with common select (S) and enable (OE)bar inputs. When (OE)bar is held High, selection of data is inhibited and all the outputs go Low.

The select decoding determines whether the A or B inputs get routed to the corresponding Y outputs.

The VHCT inputs are compatible with TTL levels. This device can be used as a level converter for interfacing 3.3 V to 5.0 V because it has full 5 V CMOS level output swings.

The VHCT257A input structures provide protection when voltages between 0 V and 5.5 V are applied, regardless of the supply voltage. The output structures also provide protection when VCC = 0 V. These input and output structures help prevent device destruction caused by supply voltage input/output voltage mismatch, battery backup, hot insertion, etc.

The internal circuit is composed of three stages, including a buffer output which provides high noise immunity and stable output. The inputs tolerate voltages up to 7 V, allowing the interface of 5 V systems to 3 V systems.
Features
 
  • High Speed: tPD = 4.1ns (Typ) at VCC = 5V
  • Low Power Dissipation: ICC = 4mA (Max) at TA = 25°C
  • TTL-Compatible Inputs: VIL = 0.8 V; VIH = 2.0 V
  • Power Down Protection Provided on Inputs and Outputs
  • Balanced Propagation Delays
  • Designed for 2V to 5.5V Operating Range
  • Low Noise: VOLP = 0.8V (Max)
  • Pin and Function Compatible with Other Standard Logic Families
  • Latchup Performance Exceeds 300mA
  • ESD Performance: HBM > 2000V; Machine Model > 200V
  • Pb-Free Packages are Available
Technical Documentation & Design Resources
Data Sheets (1) Package Drawings (2)
Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
M74VHCT257ADTR2G Active
Pb-free
Halide free
MC74VHCT257A TSSOP-16 948F-01 1 260 Tape and Reel 2500 $0.3187
MC74VHCT257ADG Last Shipments
Pb-free
Halide free
MC74VHCT257A SOIC-16 751B-05 1 260 Tube 48  
MC74VHCT257ADR2G Active
Pb-free
Halide free
MC74VHCT257A SOIC-16 751B-05 1 260 Tape and Reel 2500 $0.2248
MC74VHCT257ADTG Last Shipments
Pb-free
Halide free
MC74VHCT257A TSSOP-16 948F-01 1 260 Tube 96  
Market Leadtime (weeks) : Contact Factory
ON Semiconductor   (2020-09-02 00:00) : 20,000
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory

Product
Description
Pricing ($/Unit)
Compliance
Status
Channels
Output
VCC Min (V)
VCC Max (V)
tpd Max (ns)
IO Max (mA)
Package Type
M74VHCT257ADTR2G  
 $0.3187 
Pb
H
 Active   
4
3-State
4.5
5.5
7.9
8
TSSOP-16
MC74VHCT257ADR2G  
 $0.2248 
Pb
H
 Active   
4
3-State
4.5
5.5
7.9
8
SOIC-16
Case Outlines
751B-05    948F-01   
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