Features: `PC 99 Compliant
`3.3 Volt Operation (5V Tolerant )
`Intelligent Auto Power Management
`16 Bit Address Qualification
`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 Directly
- 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 Power-Down Modes for
Reduced Power Consumption
- DMA Enable Logic
- Data Rate and Drive Control Registers
- Swap Drives A and B
- Non-Burst Mode DMA Option
- 48 Base I/O Address, 15 IRQ and 4 DMA
Options
- Forceable Write Protect and Disk Change
Controls
Floppy Disk Available on Parallel Port Pins
ACPI Compliant
Enhanced Digital Data Separator
- 2Mbps, 1 Mbps, 500 Kbps, 300 Kbps,250 Kbps Data Rates
- Programmable Precompensation Modes
Serial Ports
- Two High Speed NS16C550 Compatible
UARTs with Send/Receive 16 Byte FIFOs
- Supports 230k and 460k Baud
- Programmable Baud Rate Generator
- Modem Control Circuitry
Infrared Communications Controller
- IrDA v1.1 (4Mbps), HPSIR, ASKIR, Consumer
IR Support
- 2 IR Ports
- 96 Base I/O Address, 15 IRQ Options and 4
DMA Options
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)
- Enhanced Capabilities Port (ECP) Compatible
(IEEE 1284 Compliant)
- Incorporates ChiProtect Circuitry for Protection
Against Damage Due to Printer Power-On
- 192 Base I/O Address, 15 IRQ and 4 DMA
Options
Game Port Select Logic
- 48 Base I/O Addresses
General Purpose Address Decoder
- 16-Byte Block DecodePinout
SpecificationsOperating Temperature Range.......................................................................................... 0 to +70
Storage Temperature Range .........................................................................................-55o to +150
Lead Temperature Range (soldering, 10 seconds) ................................................................... +325
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.............................................................................................................................+5.5V
*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.
DescriptionThe SMSC FDC37N3869 is a 3.3v PC 99-compliant Super I/O Controller with Infrared support. The FDC37N3869 utilizes SMSC's proven SuperCell technology and is optimized for motherboard applications. The FDC37N3869 incorporates SMSC's true CMOS 765B floppy disk controller, advanced digital data separator, 16-byte data FIFO, two 16C550 compatible UARTs, one Multi-Mode parallel port with ChiProtect circuitry plus EPP and ECP support, game port chip select logic and one floppy direct drive support. The FDC37N3869 does not require any external filter components, is easy to use and offers lower system cost and reduced board area. The FDC37N3869 is software and register compatible with SMSC's proprietary 82077AA core.
The true CMOS 765B core provides 100% compatibility with IBM PC/XT and PC/AT architectures and provides 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. The FDC37N3869 supports both 1Mbps and 2Mbps data rates and vertical recording operation at 1Mbps Data Rate.
The FDC37N3869 also features a full 16-bit internally decoded address bus, a Serial IRQinterface with PCI nCLKRUN support, relocatable configuration ports and four DMA channel options.
Both on-chip UARTs are compatible with the NS16C550. One UART includes additional support for a Serial Infrared Interface that complies with IrDA v1.2 (Fast IR), HPSIR, and ASKIR formats (used by Sharp, Apple Newton, and other PDAs), as well as Consumer IR.
The parallel port and the game port select logic are compatible with IBM PC/AT architectures. The parallel port ChiProtect circuitry prevents damage caused by an attached powered printer when the FDC37N3869 is not powered. The FDC37N3869 incorporates sophisticated power control circuitry (PCC). The PCC supports multiple low power down modes. The FDC37N3869 also features Software Configurable Logic (SCL) for ease of use. SCL allows programmable system configuration of key functions such as the FDC, parallel port, and UARTs.
FDC37N3869 Data Sheet
