Features
400MHz Atmel AT91SAM9G20 ARM core processor with DSP Instruction Extensions and ARM Jazelle? Technology for Java? Acceleration
64MB 133MHz high speed SDRAM , 256MB NAND FLASH
10/100 baseT Ethernet
SD/MMC with SDHC support
2 USB Host port
1 USB device port
1-channel CAN2.0 Bus
6 RS-232 Serial Port
1 RS-485 Serial Port
1 x 4-channel 10-bit ADC
1 SPI and 1 IIC intreface
Real-time clock and watch-dog timer
Digital I/O
Hardware
System
CPU: Atmel AT91SAM9G20 (ARM926EJ core with MMU capable of 400MHz operation)
RAM: 64Mbyte SDRAM
Flash: 256Mbyte Nand Flash
RTC: Battery backed Real Time Clock/Calendar
EEPROM: 4kbit EEPROM
Watch-Dog: On chip watch-dog timer
Data Transfer Interface
UARTS: 7 serial Port(6 RS232 serial port, 1 RS485 Serial)
Debug: 3-wire RS232 serial port,
COM0: 5-wire RS232/TTL serial port,
COM2: 5-wire RS232/TTL serial port,
COM3: 3-wire RS232/TTL serial port
COM4: 3-wire RS232/TTL serial port
COM5: 3-wire RS232/TTL serial port
COM1: 5-wire RS485/TTL serial port,
Net: 10/100M Ethernet interface(MAC was on AT91SAM9G20 chips)
USB: 2 USB 2.0 Full Speed Host & 1 USB 2.0 Full Speed Device ports
CAN: 1-channel CAN2.0 Bus
SD: 1 SD/MMC card slot
SPI: 1 High-Speed SPI ports
IIC: Hardware I2C port
A/D: 1 x 4-channel 10-bit ADC
Others
Button: 1 Reset button
LED: 1 battle LED, 1 user LED
Buzzer: 1 Buzzer.
Mechanical
Dimensions: 126mm x 86.5mm
Temperature: -10¡ãC to 70¡ã C
Power supply: 12V .
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Performance
Clock Cycle Time (tCK) CL=4 : 3ns (min.) / 8ns (max.)
Row Cycle Time (tRC) : 60ns (min.)
Refresh to Active: 127.5ns
Row Active Time (tRAS) : 36ns (min.) / 70,000ns (max.)
Single Power Supply of : +1.5V (+/- .1V)
Power : 2.125 W (operating per module)
UL Rating : 94 V - 0
Operating Temperature : 0o C to 55o C
Storage Temperature : -55o C to +125o C
Computer DDR RAM 512MB,1GB 400mhz-PC3200 184PIN LONG-DIMM
KVR400X64C3A/1G, KVR400X64C3A/512MB DDR RAM
Feature:
Capacity: 1GB DDR RAM
DDR Memory Type : DDR (DDR1)
No. of Pins: 184 Pin Long Dimm
Module Type: LONG Dimm
Function: Non ECC Memory
Voltage: 2.6V
CAS Latency: 3
Detail Description:
* This document describes ValueRAM's 64M x 8-bit (1GB) DDR400 CL3 SDRAM (Synchronous DRAM) memory module.
* The components on this module include sixteen 64M x 8-bit (16M x 8-bit x 4 Bank) DDR400 SDRAM in TSOP packages.
* This 184-pin DIMM uses gold contact fingers and requires +2.6V.
* The electrical and mechanical specifications are as follows:
* Features: Clock Cycle Time (tCK) 5ns (min.) / 10ns (max.)
* Row Cycle Time (tRC) 55ns (min.) Refresh Row Cycle Time (tRFC) 70ns (min.)
* Row Active Time (tRAS) 40ns (min.) / 70,000ns (max.) Single Power Supply of +2.6V (+/- .1V) Power (IDD0) 5.408 W (operating)
* Operating Temperature 0 oC to 70 oC Storage Temperature -55 oC to +150 oC UL Rating 94 V ¿C 0