Winbond Electronics Corporation W83977AF
W83977AF is an advanced version of W83977F featuring the FIR function. The disk drive adapter functions of W83977F/ AF include a floppy disk drive controller compatible with the industry standard 82077/ 765, data separator, write pre-compensation circuit, decode logic, data rate selection, clock generator, drive interface control logic, and interrupt/ DMA logic. The wide range of functions integrated onto the W83977F/ AF greatly reduces the number of components required for interfacing with floppy disk drives.
| Part No. |
W83977AF |
| Datasheet |
W83977AF
Download
|
| Manufacturer |
 Winbond Electronics Corporation |
| Description |
WINBOND I/O |
| Buy |
Stock & Price
|
GENERAL DESCRIPTION
This data sheet covers two products: W83977F, and W83977AF whose pin assignment, and most of the functions are the same. W83977F/ AF 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 in one chip --- plus additional powerful features: ACPI, 8042 keyboard controller with PS/2 mouse support, Real Time Clock, 14 general purpose I/O ports, full 16-bit address decoding, TV remote IR (Consumer IR, supporting NEC, RC-5, extended RC-5, and RECS-80 protocols). In addition, W83977AF provides the functions of IrDA 1.1 (MIR for 1.152M bps or FIR for 4M bps). The W83977F/ AF supports up to four 360K, 720K, 1.2M, 1.44M, or 2.88M disk drives and data transfer rates of 250 Kb/s, 300 Kb/s, 500 Kb/s,1 Mb/s, and 2 Mb/s. The W83977F/ AF provides two high-speed serial communication ports (UARTs), one of which supports serial Infrared communication.
