FDC37M81

Features: ·5 Volt Operation·PC98, PC99 Compliant·ISA Plug-and-Play Compatible Register Set·Intelligent Auto Power Management- Shadowed Write-Only Registers- Programmable Wake-up EventInterface·System Management Interrupt, WatchdogTimer·2.88MB Super I/O Floppy Disk Controller- Licensed CMOS 765B Fl...

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SeekIC No. : 004341062 Detail

FDC37M81: Features: ·5 Volt Operation·PC98, PC99 Compliant·ISA Plug-and-Play Compatible Register Set·Intelligent Auto Power Management- Shadowed Write-Only Registers- Programmable Wake-up EventInterface·Syste...

floor Price/Ceiling Price

Part Number:
FDC37M81
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/3/27

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Product Details

Description



Features:

·5 Volt Operation
·PC98, PC99 Compliant
·ISA Plug-and-Play Compatible Register Set
·Intelligent Auto Power Management
- Shadowed Write-Only Registers
- Programmable Wake-up Event
Interface
·System Management Interrupt, Watchdog
Timer
·2.88MB Super I/O Floppy Disk Controller
- Licensed CMOS 765B Floppy Disk
Controller
- Software and Register Compatible
with SMSC's Proprietary 82077AA
Compatible Core
- Supports One Floppy Drive
- Configurable Open Drain/Push-Pull
Output Drivers
- Supports Vertical Recording Format
- 16-Byte Data FIFO
- 100% IBM Compatibility
- Detects All Overrun and Underrun
Conditions
- Sophisticated Power Control Circuitry
(PCC) Including Multiple Powerdown
Modes for Reduced Power
Consumption
- DMA Enable Logic
- Data Rate and Drive Control Registers
- 480 Address, Up to 15 IRQ and
Three DMA Options
·Floppy Disk Available on Parallel Port Pins
·Enhanced Digital Data Separator
- 2 Mbps, 1 Mbps, 500 Kbps, 300
Kbps, 250 Kbps Data Rates
- Programmable Precompensation
Modes
·Keyboard Controller
- 8042 Software Compatible
- 8 Bit Microcomputer
- 2k Bytes of Program ROM
- 256 Bytes of Data RAM
- Four Open Drain Outputs Dedicated
for Keyboard/Mouse Interface
- Asynchronous Access to Two Data
Registers and One Status Register
- Supports Interrupt and Polling Access
- 8 Bit Counter Timer
- Port 92 Support
- Fast Gate A20 and KRESET Outputs
- 8042 P12, P16 and P17 Outputs
·Serial Ports
- Two Full Function Serial Ports
- High Speed NS16C550A Compatible
UARTs with Send/Receive 16-Byte
FIFOs
- Supports 230k and 460k Baud
Programmable Baud Rate Generator
Modem Control Circuitry
- 480 Address and 15 IRQ Options
- IrDA 1.0, HP-SIR, ASK IR Support ·Multi-Mode Parallel Port with ChiProtect
- Standard Mode IBM PC/XT PC/AT,
and PS/2 Compatible Bidirectional
Parallel Port
- Enhanced Parallel Port (EPP)
Compatible - EPP 1.7 and EPP 1.9
(IEEE 1284 Compliant)
- IEEE 1284 Compliant Enhanced
Capabilities Port (ECP)
- ChiProtect Circuitry for Protection
Against Damage Due to Printer Power-
On
- 480 Address, Up to 15 IRQ and
Three DMA Options
·ISA Host Interface
- 16 Bit Address Qualification
- 8 Bit Data Bus
- IOCHRDY for ECP and IrCC
- Three 8 Bit DMA Channels
- Serial IRQ Interface Compatible with
Serialized IRQ Support for PCI Systems
- PME Interface
·100 Pin QFP Package



Pinout

  Connection Diagram


Specifications

Operating Temperature Range.................................................................................. 0 to +70
Storage Temperature Range....................................................................................-55o to +150
Lead Temperature Range ...............................................................Refer to JEDEC Spec. J-STD-020
Positive Voltage on any pin, with respect to Ground..........................................................Vcc+0.3V
Negative Voltage on any pin, with respect to Ground............................................................. -0.3V
Maximum Vcc............................................................................................................................. +7V
Note: Stresses above those listed above could cause permanent damage to the device. This is a stress rating only and functional operation of the device at any other condition above those indicated in the operation sections of this specification is not implied.



Description

The FDC37M81x* with IrDA v1.0 support incorporates a keyboard interface, SMSC's true CMOS 765B floppy disk controller, advanced digital data separator, two 16C550A compatible UARTs, one Multi-Mode parallel port which includes ChiProtect circuitry plus EPP and ECP, on-chip 12 mA AT bus drivers, one floppy direct drive support, and Intelligent Power Management including PME support. The true CMOS 765B core provides 100% compatibility with IBM PC/XT and PC/AT architectures in addition to providing data overflow and underflow protection. The SMSC advanced digital data separator incorporates SMSC's patented data separator technology, allowing for ease of testing and use. Both on-chip UARTs are compatible with the NS16C550A. The parallel port is compatible with IBM PC/AT architecture, as well as IEEE 1284 EPP and ECP. The FDC37M81x incorporates sophisticated power control circuitry (PCC) which includes support for keyboard, mouse, and modem ring wake-up events. The PCC supports multiple low power-down modes. The FDC37M81x supports the ISA Plug-and- Play Standard (Version 1.0a) and provides the recommended functionality to support Windows '95/'98. The I/O Address, DMA Channel and hardware IRQ of each logical device in the FDC37M81x may be reprogrammed through the internal configuration registers. There are 480 I/O address location options, a Serialized IRQ interface, and three DMA channels.

The FDC37M81x does not require any external filter components and is therefore easy to use and offers lower system costs and reduced board area. The FDC37M81x is software and register compatible with SMSC's proprietary 82077AA core.

*The "x" in the part number is a designator that changes depending upon the particular BIOS used inside the specific chip. "2" denotes AMI Keyboard BIOS and "7" denotes Phoenix 42i Keyboard BIOS.




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