SN74ALS245A Octal Bus Transceivers With 3-State Outputs | TI.com

SN74ALS245A
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Octal Bus Transceivers With 3-State Outputs

Octal Bus Transceivers With 3-State Outputs - SN74ALS245A
Datasheet
 

Description

These octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.

The devices allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending upon the logic level at the direction-control (DIR) input. The output-enable (OE)\ input can be used to disable the device so that the buses are effectively isolated.

The -1 version of the SN74ALS245A is identical to the standard version, except that the recommended maximum IOL is increased to 48 mA. There is no -1 version of the SN54ALS245A.

Features

  • 4.5-V to 5.5-V VCC Operation
  • Max tpd of 5.5 ns at 5 V
  • 3-State Outputs Drive Bus Lines Directly
  • pnp Inputs Reduce dc Loading

Parametrics

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Part number Order Technology Family VCC (Min) (V) VCC (Max) (V) Bits (#) Voltage (Nom) (V) F @ nom voltage (Max) (MHz) ICC @ nom voltage (Max) (mA) tpd @ nom Voltage (Max) (ns) IOL (Max) (mA) IOH (Max) (mA) Rating Operating temperature range (C)
SN74ALS245A Order now ALS     4.5     5.5     8     5     75     58     10     24     -15     Catalog     0 to 70    
SN54ALS245A Samples not available ALS     4.5     5.5     8     5     75     58     10     24     -15     Military     -55 to 125