The 'ABT16640 are inverting 16-bit transceivers designed for asynchronous communication between data buses.
These devices can be used as two 8-bit transceivers or one 16-bit transceiver. It allows data transmission 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 (1DIR and 2DIR) inputs. The output-enable (1
and 2) inputs can be used to disable the device so that the buses are effectively isolated.
To ensure the high-impedance state during power up or power down, 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.
The SN54ABT16640 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABT16640 is characterized for operation from -40°C to 85°C.
Widebus and EPIC-IIB are trademarks of Texas Instruments Incorporated.
| Supply voltage (min) (V) | 4.5 |
| Supply voltage (max) (V) | 5.5 |
| Number of channels | 16 |
| IOL (max) (mA) | 64 |
| IOH (max) (mA) | -32 |
| Input type | TTL |
| Output type | TTL |
| Features | Over-voltage tolerant inputs, Partial power down (Ioff), Very high speed (tpd 5-10ns) |
| Technology family | ABT |
| Rating | Catalog |
| Operating temperature range (°C) | -40 to 85 |
| SSOP (DL) | 48 | 164.358 mm² 15.88 x 10.35 |
| TSSOP (DGG) | 48 | 101.25 mm² 12.5 x 8.1 |
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