SN74HCT245 Octal Bus Transceivers With 3-State Outputs | TI.com

SN74HCT245 (ACTIVE)

Octal Bus Transceivers With 3-State Outputs

 

Description

The SNx4HCT245 octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.

The SNx4HCT245 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.

Features

  • Operating Voltage Range of 4.5 V to 5.5 V
  • High-Current 3-State Outputs Drive Bus Lines Directly or up To 15-LSTTL Loads
  • Low Power Consumption, 80-µA Maximum ICC
  • Typical tpd = 14 ns
  • ±6-mA Output Drive at 5 V
  • Low Input Current of 1 µA Maximum
  • Inputs Are TTL-Voltage Compatible

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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)
SN74HCT245 SN54HCT245
HCT     HCT    
4.5     4.5    
5.5     5.5    
8     8    
5     5    
25     25    
0.08     0.08    
25     25    
6     6    
-6     -6    
Catalog     Military    
-40 to 85     -55 to 125