Texas Instruments SN54AS645
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.| Part No. | SN54AS645 |
|---|---|
| Datasheet | SN54AS645 Download |
| Manufacturer |  Texas Instruments |
| Description | Octal Bus Transceivers |
| Buy | Stock & Price |
SN54ALS645A, SN54AS645, SN74ALS645A, SN74AS645 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SDAS278 – JANUARY 1995
● 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 description 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 (OE) input can be used to disable the device so that the buses are effectively isolated. A2 A1 DIR SN54ALS645A, SN54AS645 . . . J PACKAGE SN74ALS645A, SN74AS645 . . . DW OR N PACKAGE (TOP VIEW) DIR 1 A1 2 A2 3 A3 4 A4 5 A5 6 A6 7 A7 8 A8 9 GND 10 20 VCC 19 OE 18 B1 17 B2 16 B3 15 B4 14 B5 13 B6 12 B7 11 B8 SN54ALS645A, SN54AS645 . . . FK PACKAGE (TOP VIEW) VCC OE The -1 version of the SN74ALS645A is identical to the standard version, except that the recommended maximum IOL is increased to 48 mA.
● 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 description 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 (OE) input can be used to disable the device so that the buses are effectively isolated. A2 A1 DIR SN54ALS645A, SN54AS645 . . . J PACKAGE SN74ALS645A, SN74AS645 . . . DW OR N PACKAGE (TOP VIEW) DIR 1 A1 2 A2 3 A3 4 A4 5 A5 6 A6 7 A7 8 A8 9 GND 10 20 VCC 19 OE 18 B1 17 B2 16 B3 15 B4 14 B5 13 B6 12 B7 11 B8 SN54ALS645A, SN54AS645 . . . FK PACKAGE (TOP VIEW) VCC OE The -1 version of the SN74ALS645A is identical to the standard version, except that the recommended maximum IOL is increased to 48 mA.
