Product Summary

The IT8661F is an user-friendly, low cost peripheral controller. The IT8661F provides an ideal solution for Microsoft PC97/98 (PC99 ready) system requirements. A programmable IRQ sharing function is supported to comply with Microsoft PC97/98 (PC99 ready) requirements. No N.V. memory is needed to store resource data for Plug and Play system applications.

Parametrics

IT8661F absolute maximum ratings: (1)Applied Voltage (VCC): -0.5V to VCC+0.3V; (2)Input Voltage (VI): -0.5V to 7.0V; (3)Output Voltage (VO): -0.5V to VCC+0.3V; (4)Storage Temperature (TSTG): -65 to 150℃; (5)Power Dissipation: 300mW.

Features

IT8661F features: (1)Unique PnP device ID for each logical device compliant with Plug and Play specification V1.0a; (2)Built-in resource data ROM; (3)Five logical devices; (4)16-bit address decoding; (5)Seven selectable IRQs; (6)Four selectable DMA channels; (7)Flexible resource configure and dynamic disable; (8)IRQ sharing supported 2.88MB floppy disk controller; (9)Base address 0x0100h-0x0FF8h, seven IRQ and four DMA options; (10)48mA direct output driver; (11)Enhanced digital data separator; (12)A and B drives can be logically swapped via registers; (13)-3-mode drives supported; (14)Supports automatic write protection via software; (15)Supports two 360K/ 720K/ 1.2M/1.44M/2.88M floppy disk drives.

Diagrams

IT8661F block diagram

IT8687R
IT8687R
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Data Sheet
Negotiable 
IT8673F
IT8673F
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Data Sheet
Negotiable