lpc47s457-ns Standard Microsystems Corp., lpc47s457-ns Datasheet
lpc47s457-ns
Manufacturer Part Number
lpc47s457-ns
Description
Advanced I/o With X-bus Interface
Manufacturer
Standard Microsystems Corp.
Datasheet
1.LPC47S457-NS.pdf
(259 pages)
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LPC47S457-NS
Manufacturer:
Microchip Technology
Quantity:
10 000
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SMSC LPC47S45x
3.3 Volt Operation (5V tolerant)
Floppy Disk Controller (Supports 2 FDCs)
Multi-Mode Parallel Port
Two UARTs
8042 Keyboard Controller
SMBus Controller
- SMBus access to LCD Interface
- SMBus Serial Port 2 Interface Disable
- SMBus access to Power On Elapsed Time
- Programmable Slave Address
X-Bus Interface
- Supports up to four external I/O components
- Offers two modes of operation
- Support for Driving LCD Panel Interface
- Supports Port 80h Monitoring
Programmable Wakeup Event Interface (IO_PME#
Pin)
SMI Support (IO_SMI# Pin)
GPIOs (55)
Fan Controller
- One Fan Speed Control Output
- One Fan Tachometer Input
ISA IRQ to Serial IRQ Conversion
XNOR Chain for Board Test Mode
PC2001 and ACPI 2.0 Compliant
128-pin QFP Package
ISA Plug-and-Play Compatible Register Set
Intelligent Auto Power Management
Power On Elapsed Time Counters
- Counter for Main Power
- Counter for Standby Power
Real Time Clock
- MC146818 and DS1287 Compatible
- 256 Bytes of Battery Backed CMOS in Two 128-
- 128 Bytes of CMOS RAM Lockable in 4x32 Byte
- 12 and 24 Hour Time Format
- 24-hour daily alarm
- 30-day alarm
- Binary and BCD Format
- <1μA Standby Current (typ)
Counters
Controller
Byte Banks
Blocks
Advanced I/O with X-Bus Interface
DATASHEET
FEATURES
2.88MB Super I/O Floppy Disk Controller
- Licensed CMOS 765B Floppy Disk Controller
- Software and Register Compatible with SMSC's
- Configurable Open Drain/Push-Pull Output
- Supports Vertical Recording Format
- 16-Byte Data FIFO
- 100% IBM Compatibility
- Detects All Overrun and Underrun Conditions
- Sophisticated Power Control Circuitry (PCC)
- DMA Enable Logic
- Data Rate and Drive Control Registers
- 480 Address, up to 15 IRQ and Four DMA
Enhanced Digital Data Separator
- 2 Mbps, 1 Mbps, 500 Kbps, 300 Kbps, 250 Kbps
- 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
- Asynchronous Access to Two Data Registers and
- Supports Interrupt and Polling Access
- 8-Bit Counter Timer
- Port 92 Support
- Fast Gate A20 and KRESET Outputs
Serial Ports
- Two Full Function Serial Ports
- High Speed NS16C550A Compatible UARTs with
- 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
Proprietary 82077AA Compatible Core
Drivers
Including Multiple Powerdown Modes for
Reduced Power Consumption
Options
Data Rates
Keyboard/Mouse Interface
One Status Register
Send/Receive 16-Byte FIFOs
LPC47S45x
Rev. 08-10-09
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