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SN74AS645N

Octal Bus Transceivers With 3-State Outputs

Packaging

Package | PIN: N | 20
Temp: C (0 to 70)
Carrier: Partial Tube
Qty Price
1-9 $4.95
10-24 $4.46
25-99 $4.16
100-249 $3.73
250-499 $3.48
500-749 $3.03
750-999 $2.62
1000+ $2.57

Features

  • Bidirectional Bus Transceivers in High-Density 20-Pin Packages
  • True Logic
  • 3-State Outputs
  • Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs

 

Texas Instruments  SN74AS645N

These octal bus transceivers are designed for asynchronous two-way communication between data buses. These devices transmit data from the A bus to the B bus or from the B bus to the A bus, depending on the level at the direction-control (DIR) input. The output-enable input can be used to disable the device so that the buses are effectively isolated.

The -1 version of the SN74ALS645A is identical to the standard version, except that the recommended maximum IOL is increased to 48 mA. There is no -1 version of the SN54ALS645A.

The SN54ALS645A and SN54AS645 are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS645A and SN74AS645 are characterized for operation from 0°C to 70°C.