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

SN74ALS245A (ACTIVE)

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

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Parametrics Compare all products in Standard transceiver

 
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 SN54ALS245A
ALS     ALS    
4.5     4.5    
5.5     5.5    
8     8    
5     5    
75     75    
58     58    
10     10    
24     24    
-15     -15    
Catalog     Military    
0 to 70     -55 to 125