The SN54ABT16541 and SN74ABT16541A are noninverting 16-bit buffers composed of two 8-bit sections with separate output-enable signals. For either 8-bit buffer section, the two output-enable (1
and 1
or 2and 2) inputs must both be low for the corresponding Y outputs to be active. If either output-enable input is high, the outputs of that 8-bit buffer section are in the high-impedance state.
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 SN54ABT16541 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABT16541A is characterized for operation from -40°C to 85°C.
Widebus and EPIC-IIB are trademarks of Texas Instruments Incorporated.
| Technology family | ABT |
| Supply voltage (min) (V) | 4.5 |
| Supply voltage (max) (V) | 5.5 |
| Number of channels | 16 |
| IOL (max) (mA) | 64 |
| Supply current (max) (µA) | 34000 |
| IOH (max) (mA) | -32 |
| Input type | TTL-Compatible CMOS |
| Output type | 3-State |
| Features | Over-voltage tolerant inputs, Partial power down (Ioff), Ultra high speed (tpd <5ns) |
| 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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