AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 18

• Manufacturer Part Number: AT91SAM7S256D-AU
• Description: ARM Microcontrollers - MCU 256K Flash SRAM 64K ARM based MCU
• Manufacturer: Atmel
• Series: SAM7S256r

Specifications of AT91SAM7S256D-AU

• Rohs: yes
• Core: ARM
• Processor Series: AT91SAM
• Data Bus Width: 16 bit/32 bit
• Maximum Clock Frequency: 55 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 64 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 3 V to 3.6 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: LQFP-64
• Mounting Style: SMD/SMT
• Interface Type: 2-Wire, I2S, SPI, USART
• Length: 7 mm

8.
8.1
8.2
8.3
8.4
Memories
SAM7S512
SAM7S256
SAM7S128
SAM7S64
512 Kbytes of Flash Memory, dual plane
64 Kbytes of Fast SRAM
256 Kbytes of Flash Memory, single plane
64 Kbytes of Fast SRAM
128 Kbytes of Flash Memory, single plane
32 Kbytes of Fast SRAM
64 Kbytes of Flash Memory, single plane
2 contiguous banks of 1024 pages of 256 bytes
Fast access time, 30 MHz single-cycle access in Worst Case conditions
Page programming time: 6 ms, including page auto-erase
Page programming without auto-erase: 3 ms
Full chip erase time: 15 ms
10,000 write cycles, 10-year data retention capability
32 lock bits, protecting 32 sectors of 64 pages
Protection Mode to secure contents of the Flash
Single-cycle access at full speed
1024 pages of 256 bytes
Fast access time, 30 MHz single-cycle access in Worst Case conditions
Page programming time: 6 ms, including page auto-erase
Page programming without auto-erase: 3 ms
Full chip erase time: 15 ms
10,000 write cycles, 10-year data retention capability
16 lock bits, protecting 16 sectors of 64 pages
Protection Mode to secure contents of the Flash
Single-cycle access at full speed
512 pages of 256 bytes
Fast access time, 30 MHz single-cycle access in Worst Case conditions
Page programming time: 6 ms, including page auto-erase
Page programming without auto-erase: 3 ms
Full chip erase time: 15 ms
10,000 write cycles, 10-year data retention capability
8 lock bits, protecting 8 sectors of 64 pages
Protection Mode to secure contents of the Flash
Single-cycle access at full speed
512 pages of 128 bytes
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
18