The Different between the S3C2451 and S3C2440 chips
 ARM
S3C2451
S3C2416
S3C2440
 ARM Core
ARM926EJ
ARM926EJ
ARM926T
 Process
 60nm CMOS
60nm CMOS
 130nm CMOS
 Speed
 400 MHz
400Mhz
 400 MHz
 UARTs
 4
 3
 SPI
2
1
 2
 I2C
2
 1
 I2S
2
 1
 SD/MMC
2 SD Host 2.0, MMC 4.2
1 SSD 1.0, MMC 2.11
 Camera
1
No
 1
 GPIO
GPIO:174, INT:24`
GPIO:138, INT:16
GPIO:130, INT:24
 PWM
 4
4
 4
 USB Host
 USB 1.1
 USB 1.1
 USB 1.1
 USB Device
 USB 2.0
 USB 1.1
 ADC
 10 each 12 bit
 8 each 10 bit
 LCD
 256K Colors
 RAM
 128M DDR2
128M DDR2
 64M
 CPU ID
 32450003 Hex
 32440001 Hex
 Boot
 SD/NAND/NOR
 NAND/NOR


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