SN54AC245 Octal Bus Transceivers With 3-State Outputs | TI.com

SN54AC245 (ACTIVE) Octal Bus Transceivers With 3-State Outputs

Octal Bus Transceivers With 3-State Outputs - SN54AC245
Datasheet
 

Description

The ’AC245 octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.

When the output-enable (OE)\ is low, the device passes noninverted data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction control (DIR) input. A high on OE\ disables the device so that the buses are effectively isolated.

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

  • 2-V to 6-V VCC Operation
  • Inputs Accept Voltages to 6 V
  • Max tpd of 7 ns at 5 V

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)
SN54AC245 Order now AC     2     6     8     3.3
5    
100     0.04     11.5
8.5    
24     -24     Military     -55 to 125    
SN74AC245 Order now AC     2     6     8     3.3
6    
100     0.04     9
7    
24     -24     Catalog     -40 to 85