Features: · Mixed Voltage Support
- Supports Standard 5V Operation
- Supports 3.3V Operation
- Supports Mixed Internal 3.3V Operation
with 3.3V/5V External Configuration
· Intelligent Auto Power Management
· Floppy Disk Available on Parallel Port Pins
· 2.88MB Super I/O Floppy Disk Controller
- Licensed CMOS 765B Floppy Disk
Controller
- FDC37C665IR Hardware/Socket
Compatible with FDC37C665LV
(Standard and Enhanced Parallel Port
Modes)
- Advanced Digital Data Separator
- Software and Register Compatible with
SMSC's Proprietary 82077AA Compatible
Core
- Sophisticated Power Control Circuitry
(PCC) Including Multiple Powerdown
Modes for Reduced Power Consumption
- Supports Three Floppy Drives Directly
(Standard and Enhanced Modes)
- 12 mA AT Bus Drivers
- Low Power CMOS 0.8µ Design
· Licensed CMOS 765B Floppy Disk Controller
Core
- Supports Vertical Recording Format
- 16 Byte Data FIFO
- 100% IBM® Compatibility
- Detects All Overrun and Underrun
Conditions
- 20 mA Drivers and Schmitt Trigger Inputs
- DMA Enable Logic
- Data Rate and Drive Control Registers
- Secondary Address Option
· Enhanced Digital Data Separator
- Low Cost Implementation - 24 MHz
Crystal
- No Filter Components Required
- Ease of Test and Use, Lower System
Cost, and Reduced Board Area
- 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
- Programmable Baud Rate Generator
- Modem Control Circuitry Including 230K
and 460K Baud
- Infrared - IrDA (HPSIR) and
Amplitude Shift Keyed IR (ASKIR)
· ISA Host Interface
· IDE Interface
- On-Chip Decode and Select Logic
Compatible with IBM PC/XT and PC/AT
Embedded Hard Disk DrivesPinout
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......................................................VIO+0.3V
Negative Voltage on any pin, with respect to Ground.......................................................... -0.3V
Maximum VIO......................................................................................................................... +7V
Maximum VCC..........................................................................................................................VIO
*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 FDC37C665IR has a 3 Volt Advanced High Performance Multi-Mode Parallel Port Super I/O Floppy Disk Controller ICs with Infrared Support utilize SMSC's proven SuperCell technology for increased product reliability and functionality. The FDC37C665IR is optimized for motherboard applications. Both devices support 1 Mbps data rates for vertical recording operation.
The FDC37C665IR 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 which includes ChiProtect circuitry plus EPP and ECP support, IDE interface, onchip 12 mA AT bus drivers and three floppy direct drive 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 NS16C550. One UART includes additional support for a Serial Infrared Interface, complying with IrDA, HPSIR, and ASKIR formats (used by Sharp, Apple Newton, and other PDAs). The parallel port, the IDE interface, and the game port select logic are compatible with IBM PC/XT and PC/AT architectures, as well as EPP and ECP. The FDC37C665IR incorporates sophisticated power control circuitry (PCC). The PCC supports multiple low power down modes.
The FDC37C665IR Floppy Disk Controller incorporates Software Configurable Logic (SCL) for ease of use. Use of the SCL feature allows programmable system configuration of key functions such as the FDC, parallel port, and UARTs. The parallel port ChiProtect prevents damage caused by the printer being powered when the FDC37C665IR is not powered.
The FDC37C665IR does not require any external filter components and are, therefore, easy to use and offer lower system cost and reduced board area. The FDC37C665IR is software and register compatible with SMSC's proprietary 82077AA core.
IBM, PC/XT and PC/AT are registered trademarks and PS/2 is a trademark of International Business Machines Corporation. SMSC is a registered trademark and ChiProtect, SuperCell, and Multi-Mode are trademarks of Standard Microsystems Corporation
FDC37C665IR Data Sheet
