0
ACTIVE
Supply voltage (min) (V) |
4.5 |
Supply voltage (max) (V) |
5.5 |
Number of channels |
36 |
IOL (max) (mA) |
64 |
IOH (max) (mA) |
-32 |
Input type |
TTL |
Output type |
TTL |
Features |
Bus-hold, Over-voltage tolerant inputs, Partial power down (Ioff), Power up 3-state, Very high speed (tpd 5-10ns) |
Technology family |
ABT |
Rating |
Catalog |
Operating temperature range (°C) |
-40 to 85 |
LQFP (PZ)-100-256 mm² 16 x 16
Widebus+ and EPIC-IIB are trademarks of Texas Instruments Incorporated.
The HS package is not production released.
The 'ABTH32245 are 36-bit (quad 9-bit) noninverting 3-state transceivers designed for synchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.
These devices can be used as four 9-bit transceivers, two18-bit transceivers, or one 36-bit transceiver. They allow 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 (DIR) inputs. The output-enable (OE) inputs can be used to disable the device so that the buses are effectively isolated.
When VCC is between 0 and 2.1 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 2.1 V, OE 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.
Active bus-hold circuitry holds unused or floating data inputs at a valid logic level.
The SN54ABTH32245 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABTH32245 is characterized for operation from -40°C to 85°C.
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