AT91SAM7X128 Atmel, AT91SAM7X128 Datasheet - Page 140

• Manufacturer Part Number: AT91SAM7X128
• Description: MCU 32-Bit 91S ARM7TDMI RISC 128KB Flash 1.8V/3.3V 100-Pin LQFP
• Manufacturer: Atmel

Specifications of AT91SAM7X128

• Package: 100LQFP
• Device Core: ARM7TDMI
• Family Name: 91S
• Maximum Speed: 55 MHz
• Ram Size: 32 KB
• Program Memory Size: 128 KB
• Operating Supply Voltage: 1.8|3.3 V
• Data Bus Width: 32 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 62
• Interface Type: CAN/Ethernet/SPI/I2S/TWI/USART/USB
• On-chip Adc: 8-chx10-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 3

21.5
140
Hardware and Software Constraints
AT91SAM7X512/256/128 Preliminary
Table 21-4.
Table 21-5.
Device
AT91SAM7X512
AT91SAM7X256
AT91SAM7X128
Peripheral
DBGU
DBGU
• SAM-BA boot copies itself in the SRAM and uses a block of internal SRAM for variables and
• USB requirements:
stacks. The remaining available size for the user code is 122880 bytes forAT91SAM7x512,
57344 bytes for AT91SAM7X256 and 24576 bytes for AT91SAM7X128.
– pull-up on DDP
– 18.432 MHz Quartz
User Area Addresses
Pins Driven during Boot Program Execution
Start Address
0x202000
0x202000
0x202000
Pin
DRXD
DTXD
End Address
0x220000
0x210000
0x208000
Size (bytes)
122880
57344
24576
PIO Line
6120H–ATARM–17-Feb-09
PA27
PA28