DISK CONTROLLER. 82078-1 Datasheet

82078-1 Datasheet PDF, Equivalent


Part Number

82078-1

Description

FLOPPY DISK CONTROLLER

Manufacture

Intel Corporation

Total Page 3 Pages
PDF Download
Download 82078-1 Datasheet PDF


82078-1 Datasheet
82078 CHMOS SINGLE-CHIP
FLOPPY DISK CONTROLLER
Y Small Footprint and Low Height
Packages
Y Supports Standard 5 0V as Well as Low
Voltage 3 3V Platforms
Selectable 3 3V and 5 0V
Configuration
5 0V Tolerant Drive Interface
Y Enhanced Power Management
Application Software Transparency
Programmable Powerdown
Command
Save and Restore Commands for 0V
Powerdown
Auto Powerdown and Wakeup
Modes
Two External Power Management
Pins
Consumes No Power While in
Powerdown
Y Programmable Internal Oscillator
Y Floppy Drive Support Features
Drive Specification Command
Media ID Capability Provides Media
Recognition
Drive ID Capability Allows the User
to Recognize the Type of Drive
Selectable Boot Drive
Standard IBM and ISO Format
Features
Format with Write Command for
High Performance in Mass Floppy
Duplication
Y Integrated Host Disk Interface Drivers
Y Integrated Analog Data Separator
250 Kbits sec
300 Kbits sec
500 Kbits sec
1 Mbits sec
2 Mbits sec
Y Integrated Tape Drive Support
Standard 1 Mbps 500 Kbps
250 Kbps Tape Drives
New 2 Mbps Tape Drive Mode
Y Perpendicular Recording Support for
4 MB Drives
Y Fully Decoded Drive Select and Motor
Signals
Y Programmable Write Precompensation
Delays
Y Addresses 256 Tracks Directly
Supports Unlimited Tracks
Y 16 Byte FIFO
Y Single-Chip Floppy Disk Controller
Solution for Portables and Desktops
100% PC-AT Compatible
100% PS 2 Compatible
100% PS 2 Model 30 Compatible
Fully Compatible with Intel’s 386SL
Microprocessor SuperSet
Integrated Drive and Data Bus
Buffers
Y Available in 64 Pin QFP and 44 Pin QFP
Package
(See Package Specification Order Number 240800 Package
Type S)
The 82078 Product Family brings a set of enhanced floppy disk controllers These include several features
that allow for easy implementation in both the portable and desktop market The current family includes a 64
pin and a 44 pin part in the smaller form factor QFP package The 3 3V version of the 64 pin part provides an
ideal solution for the rapidly emerging 3 3V platforms It also allows for a 5 0V tolerant floppy drive interface
that lets the users retain their normal 5 0V drives Another version of the 64 pin part provides support for 2
Mbps data rate tape drives
Other brands and names are the property of their respective owners
Other brands and names are the property of their respective owners
Information in this document is provided in connection with Intel products Intel assumes no liability whatsoever including infringement of any patent or
copyright for sale and use of Intel products except as provided in Intel’s Terms and Conditions of Sale for such products Intel retains the right to make
changes to these specifications at any time without notice Microcomputer Products may have minor variations to this specification known as errata
COPYRIGHT INTEL CORPORATION 1996
February 1994
Order Number 290468-003

82078-1 Datasheet
82078
82078SL
82078-1
Table 1-0 64 Pin Part Versions
3 3V
5 0V
XX
X
2 Mbps Data Rate
X
The 44 pin is targeted for platforms that are operated at 3 3V or 5 0V and do not require more than two drive
support The 82078-5 is designed for price sensitive 5 0V designs which do not include 4 MB drive support
82078
82078-5
82078-3
Table 2-0 44 Pin Part Versions
3 3V
5 0V
X
X
X
1 Mbps Data Rate
X
X
Both parts can be operated at 1 Mbps 500 Kbps 300 Kbps 250 Kbps Additionally one version of the 64 pin
part provides 2 Mbps data rate operation specific for the new tape drives
The 82078 is fabricated with Intel’s advanced CHMOS III technology
290468 – 1
2


Features Datasheet pdf 82078 CHMOS SINGLE-CHIP FLOPPY DISK CONT ROLLER Y Small Footprint and Low Heigh t Packages Supports Standard 5 0V as We ll as Low Voltage 3 3V Platforms Select able 3 3V and 5 0V Configuration 5 0V T olerant Drive Interface Enhanced Power Management Application Software Transpa rency Programmable Powerdown Command Sa ve and Restore Commands for 0V Powerdow n Auto Powerdown and Wakeup Modes Two E xternal Power Management Pins Consumes No Power While in Powerdown Programmabl e Internal Oscillator Floppy Drive Supp ort Features Drive Specification Comman d Media ID Capability Provides Media Re cognition Drive ID Capability Allows th e User to Recognize the Type of Drive S electable Boot Drive Standard IBM and I SO Format Features Format with Write Co mmand for High Performance in Mass Flop py Duplication Integrated Host Disk Int erface Drivers Y Y Integrated Analog Data Separator 250 Kbits sec 300 Kbits sec 500 Kbits sec 1 Mbits sec 2 Mbits sec Integrated Tape Drive Support Standard 1 Mbps 500 Kbps 250 .
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