Product Summary

The F82C721 is an enhanced I/O peripheral controller. It is a single-solution offering complete I/O capabilities for PC/AT and PC/XT environments. The device supports motherboard applications with configuration via software. The F82C721 features a floppy disk controller, a digital data separator, two 16450 compatible UARTs, a bidirectional parallel port, and IDE interface control logic and a game port chip select.

Parametrics

F82C721 absolute maximum ratings: (1)VCC, supply voltage: 3.0 to 7.0V; (2)VI, input voltage: -0.5 to 5.5V; (3)TA, operating temperature: 0 to 70℃; (4)Tstg, storage temperature: -40 to 125℃.

Features

F82C721 features: (1)for motherboard applications with configuration via software; (2)low power CMOS, 100 pin PQFP package; (3)on chip power management features, controllable through hardware and/or software; (4)100% IBM pC-XT/AT compatibility; (5)24mA IBM PC-AT/XT bus interface buffers; (6)schmitt trigger input on reset pin and FDC interface inputs; (7)two 16450 compatible UARTs; (8)second serial port data rate can be programmed to support MIDI data rate; (9)one IBM PC-XT/AT compatible enhanced parallel port; (10)24-mA parallel port output drivers.

Diagrams

F82C721 block diagram