SN54AHCT16541 and SN74AHCT16541 are 16-bit buffers/drivers with 3-state outputs. They are fabricated using the EPIC (Enhanced-Performance Implanted CMOS) process, and the inputs are TTL-voltage compatible. Distributed VCC and GND pins minimize high-speed switching noise, and the flow-through architecture optimizes PCB layout. The latch-up performance exceeds 250 mA per JESD 17. Package options include plastic shrink small-outline (DL), thin shrink small-outline (DGG), and thin very small-outline (DGV) packages, as well as a 380-mil fine-pitch ceramic flat (WD) package with 25-mil center-to-center spacings. The devices consist of two 8-bit sections with separate output-enable signals. The outputs of each section are active only when both output-enable inputs are low. If either output-enable input is high, the outputs of that section are in the high-impedance state. To ensure the high-impedance state during power up or power down, the output-enable signals should be tied to VCC through pullup resistors, with the minimum value determined by the current-sinking capability of the driver. The SN54AHCT16541 is characterized for operation over the full military temperature range of -55°C to 125°C, while the SN74AHCT16541 is characterized for operation from -40°C to 85°C.
This datasheet provides detailed specifications, electrical characteristics, and package information for the SN54AHCT16541 and SN74AHCT16541 devices, which are 16‑bit buffers/drivers featuring two 8‑bit sections and separate output‑enable signals. It includes functional tables, absolute‑maximum ratings, and recommended operating conditions for both military‑grade and commercial temperature ranges.
The document also contains timing diagrams, voltage waveforms, and power‑dissipation data, as well as an important notice regarding product warranties, critical‑application usage, and liability. All specifications are current as of the 2000 publication date.
| Supply voltage (VCC) | 4.5 V – 5.5 V |
|---|---|
| Low‑level output current (loL) | 8 mA |
The device operates with a supply voltage (VCC) between 4.5 V and 5.5 V.