This document describes the features and characteristics of the HD-6402/883 CMOS Universal Asynchronous Receiver Transmitter (UART), including operating frequency, low power design, programmable word length, stop bits and parity, automatic data formatting and status generation, etc. The HD-6402/883 is designed for interfacing computers or microprocessors to an asynchronous serial data channel and can be used in various applications such as modems, printers, peripherals, and remote data acquisition systems.
The HD-6402/883 is a CMOS universal asynchronous receiver‑transmitter (UART) designed for interfacing computers or microprocessors to serial data channels. It offers programmable word length, parity, stop bits, and operates from a single +5 V supply, with low power consumption and CMOS/TTL compatible inputs.
The device is supplied in a CERDIP package and is rated for operation from –55 °C to +125 °C. Detailed electrical specifications include operating frequencies of 2 MHz (R version) and 8 MHz (B version), standby supply current of 100 µA, and input/output capacitances of 25 pF. It conforms to MIL‑STD‑883 and is suitable for applications such as modems, printers, and remote data acquisition systems.
| Operating Frequency (B version) | 8.0 MHz |
|---|---|
| Operating Frequency (R version) | 2.0 MHz |
| Supply Voltage | 5 V (VCC =5.5 V) |
| Package Type | CERDIP |
The HD-6402/883 operates at 8.0 MHz for the B version and 2.0 MHz for the R version.
It uses a single +5 V power supply (VCC =5.5 V).
The chip is supplied in a CERDIP package.