74AC11257 Quadruple 2-Line To 1-Line Data Selectors/Multiplexers With 3-State Outputs | TI.com

74AC11257
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Quadruple 2-Line To 1-Line Data Selectors/Multiplexers With 3-State Outputs

Quadruple 2-Line To 1-Line Data Selectors/Multiplexers With 3-State Outputs - 74AC11257
Datasheet
 

Description

This device is designed to multiplex signals from 4-bit data sources to four output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable (OE\) input is at a high logic level.

To ensure the high-impedance state during power up or power down, OE\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

Features

  • 3-State Outputs Interface Directly With System Bus
  • Flow-Through Architecture Optimizes PCB Layout
  • Center-Pin VCC and GND Configurations Minimize High-Speed Switching Noise
  • 500-mA Typical Latch-Up Immunity at 125°C
  • Provides Bus Interface From Multiple Sources in High-Performance Systems

Parametrics

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Part number Order Function Technology Family VCC (Min) (V) VCC (Max) (V) Channels (#) Voltage (Nom) (V) F @ nom voltage (Max) (MHz) ICC @ nom voltage (Max) (mA) tpd @ nom Voltage (Max) (ns) Configuration Type IOL (Max) (mA) IOH (Max) (mA) Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG) Bits (#) Digital input leakage (Max) (uA) ESD CDM (kV) ESD HBM (kV)
74AC11257 Order now Encoder
Multiplexer    
AC     3     5.5     4     3.3
5    
100     0.08     9
6.5    
2:1     3-State Output     24     -24     Catalog     -40 to 85     PDIP | 20
SOIC | 20
TSSOP | 20    
20PDIP: 229 mm2: 9.4 x 24.33 (PDIP | 20)
20SOIC: 132 mm2: 10.3 x 12.8 (SOIC | 20)
20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP | 20)    
2     5     0.75     2