These 16-bit buffers and bus drivers provide a high-performance bus interface for wide data paths.
The 3-state control gate is a 2-input AND gate with active-low inputs so that if either output-enable (OE1 or OE2) input is high, all corresponding outputs are in the high-impedance state.
To ensure the high-impedance state during power up or power down, 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 SN54AHCT16540 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74AHCT16540 is characterized for operation from -40°C to 85°C.
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| Technology family | AHCT |
| Supply voltage (min) (V) | 4.5 |
| Supply voltage (max) (V) | 5.5 |
| Number of channels | 16 |
| IOL (max) (mA) | 8 |
| IOH (max) (mA) | -8 |
| Supply current (max) (µA) | 40 |
| Input type | TTL-Compatible CMOS |
| Output type | 3-State |
| Features | Balanced outputs, Over-voltage tolerant inputs, Very high speed (tpd 5-10ns) |
| 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 |