AT91SAM7S64B-MU Atmel, AT91SAM7S64B-MU Datasheet - Page 21

• Manufacturer Part Number: AT91SAM7S64B-MU
• Description: IC ARM7 MCU FLASH 64K 64QFN
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7S64B-MU

• Package / Case: 64-QFN
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 55MHz
• Number Of I /o: 32
• Core Processor: ARM7
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Program Memory Size: 64KB (64K x 8)
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Connectivity: I²C, SPI, SSC, UART/USART, USB
• Core Size: 16/32-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

8.7
8.7.1
8.7.2
8.7.3
6175JS–ATARM–28-Jul-11
Memory Mapping
Internal SRAM
Internal ROM
Internal Flash
After reset and until the Remap Command is performed, the SRAM is only accessible at address
0x0020 0000. After Remap, the SRAM also becomes available at address 0x0.
The SAM7S Series embeds an Internal ROM. The ROM contains the FFPI and the SAM-BA
program.
The internal ROM is not mapped by default.
At any time, the Flash is mapped to address 0x0010 0000. It is also accessible at address 0x0
after the reset and before the Remap Command.
Figure 8-2.
• The SAM7S512 embeds a high-speed 64-Kbyte SRAM bank.
• The SAM7S256 embeds a high-speed 64-Kbyte SRAM bank.
• The SAM7S128 embeds a high-speed 32-Kbyte SRAM bank.
• The SAM7S64 embeds a high-speed 16-Kbyte SRAM bank.
• The SAM7S321 embeds a high-speed 8-Kbyte SRAM bank.
• The SAM7S32 embeds a high-speed 8-Kbyte SRAM bank.
• The SAM7S161 embeds a high-speed 4-Kbyte SRAM bank.
• The SAM7S16 embeds a high-speed 4-Kbyte SRAM bank
• The SAM7S512 features two contiguous banks (dual plane) of 256 Kbytes of Flash.
• The SAM7S256 features one bank (single plane) of 256 Kbytes of Flash.
• The SAM7S128 features one bank (single plane) of 128 Kbytes of Flash.
• The SAM7S64 features one bank (single plane) of 64 Kbytes of Flash.
• The SAM7S321/32 features one bank (single plane) of 32 Kbytes of Flash.
• The SAM7S161/16 features one bank (single plane) of 16 Kbytes of Flash.
256 MBytes
Internal Memory Mapping
0x0000 0000
0x0010 0000
0x0020 0000
0x000F FFFF
0x001F FFFF
0x002F FFFF
0x0030 0000
0x0FFF FFFF
Flash Before Remap
Undefined Areas
SRAM After Remap
Internal Flash
Internal SRAM
(Abort)
SAM7S Series Summary
253 MBytes
1 MBytes
1 MBytes
1 MBytes
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