The SN54ABT541 and SN74ABT541B octal buffers and line drivers are ideal for driving bus lines or buffering memory address registers. The devices feature inputs and outputs on opposite sides of the package to facilitate printed circuit board layout.
The 3-state control gate is a two-input AND gate with active-low inputs so that if either output-enable (OE1 or OE2) input is high, all eight outputs are in the high-impedance state.
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.
The SN54ABT541 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABT541B is characterized for operation from -40°C to 85°C.
EPIC-IIB is a trademark of Texas Instruments.
| Technology family | ABT |
| Supply voltage (min) (V) | 4.5 |
| Supply voltage (max) (V) | 5.5 |
| Number of channels | 8 |
| IOL (max) (mA) | 48 |
| Supply current (max) (µA) | 250 |
| IOH (max) (mA) | -24 |
| Input type | TTL-Compatible CMOS |
| Output type | 3-State |
| Features | Over-voltage tolerant inputs, Partial power down (Ioff), Power up 3-state, Ultra high speed (tpd <5ns) |
| Rating | Military |
| Operating temperature range (°C) | -55 to 125 |
| CDIP (J) | 20 | 167.464 mm² 24.2 x 6.92 |
| CFP (W) | 20 | 90.5828 mm² 13.09 x 6.92 |
| LCCC (FK) | 20 | 79.0321 mm² 8.89 x 8.89 |
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