The SN100KT5539 is an octal ECL-to-TTL translator with open-collector outputs. This device is designed specifically to improve the performance and density of ECL-to-TTL CPU/bus-oriented functions such as memory-address drivers, clock drivers, and bus-oriented receivers and transmitters while eliminating the need for three-state overlap protection. Two pins OE1 and OE2 are provided for output-enable control. These control inputs are ANDed together with OE1 being ECL-compatible and OE2 being TTL-compatible. This offers the choice of controlling the outputs of the device from either a TTL or ECL signal environment. The SN100KT5539 is characterized for operation from 0°C to 85°C.
The SN100KT5539 octal ECL‑to‑TTL translator provides efficient level conversion between a 100 kΩ ECL environment and TTL logic. It features open‑collector outputs and two output‑enable pins (OE1, ECL‑compatible; OE2, TTL‑compatible) that are ANDed together, allowing control from either logic family.
Key electrical characteristics include a supply voltage range of –0.5 V to 7 V for VCC and –8 V to 0 V for VEE, TTL input voltage range of –1.2 V to 7 V, and operation over a free‑air temperature range of 0 °C to 85 °C. The device is packaged in a 100‑pin compatible RINT package and is intended for high‑speed bus‑oriented functions such as memory‑address drivers and clock drivers.
| Operating temperature range | 0 °C to 85 °C |
|---|
The device operates from 0 °C to 85 °C.
It translates octal ECL signals to TTL levels with open‑collector outputs, improving performance of bus‑oriented functions.
OE1 (ECL‑compatible) and OE2 (TTL‑compatible) are ANDed together, allowing output control from either logic family.