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W83977A - WINBOND I/O

Download the W83977A datasheet PDF. This datasheet also covers the W83-977 variant, as both devices belong to the same winbond i/o family and are provided as variant models within a single manufacturer datasheet.

General Description

The W83977ATF is an evolving product from Winbond's most popular I/O chip W83877F --- which integrates the disk drive adapter, serial port (UART), IrDA 1.0 SIR, parallel port, configurable plugand-play registers for the whole chip --- plus additional powerful

Key Features

  • ACPI, 8042 keyboard controller with PS/2 mouse support, 23 general purpose I/O ports, full 16-bit address decoding, OnNow keyboard wake-up, OnNow mouse wake-up, and OnNow CIR wake-up. In addition, the W83977ATF provides IR functions: IrDA 1.1 (MIR for 1.152M bps or FIR for 4M bps) and TV remote IR (Consumer IR, supporting NEC, RC-5, extended RC-5, and RECS-80 protocols). The disk drive adapter functions of W83977ATF include a floppy disk drive controller compatible with the industry standard 82.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (W83-977-A.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Winbond

Part Number Description
W83977AF PLUG & PLAY 1.0A COMPLIANT
W83977AF-A WINBOND I/O
W83977AG-A WINBOND I/O
W83977ATF WINBOND I/O
W83977CTF WINBOND I/O

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
W83977ATF WINBOND I/O W83977ATF WINBOND I/O GENERAL DESCRIPTION The W83977ATF is an evolving product from Winbond's most popular I/O chip W83877F --- which integrates the disk drive adapter, serial port (UART), IrDA 1.0 SIR, parallel port, configurable plugand-play registers for the whole chip --- plus additional powerful features: ACPI, 8042 keyboard controller with PS/2 mouse support, 23 general purpose I/O ports, full 16-bit address decoding, OnNow keyboard wake-up, OnNow mouse wake-up, and OnNow CIR wake-up. In addition, the W83977ATF provides IR functions: IrDA 1.1 (MIR for 1.152M bps or FIR for 4M bps) and TV remote IR (Consumer IR, supporting NEC, RC-5, extended RC-5, and RECS-80 protocols).