AT91SAM7SE256B-AUR Atmel, AT91SAM7SE256B-AUR Datasheet - Page 24

• Manufacturer Part Number: AT91SAM7SE256B-AUR
• Description: IC ARM7 MCU FLASH 256K 128-LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7SE256B-AUR

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: EBI/EMI, I²C, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 88
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Processor Series: SAM7SE256
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 32 KB
• Interface Type: SPI, USB
• Maximum Clock Frequency: 48 MHz
• Number Of Programmable I/os: 88
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Operating Temperature Range: - 40 C to + 85 C
• Processor To Be Evaluated: AT91SAM7SE256B
• Supply Current (max): 60 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

8.1.2
8.1.2.1
24
SAM7SE512/256/32 Preliminary
Embedded Flash
Flash Overview
Figure 8-2.
Figure 8-3.
The Flash of the SAM7SE512 is organized in two banks (dual plane) of 1024 pages of 256
bytes. It reads as 131,072 32-bit words.
The Flash of the SAM7SE256 is organized in 1024 pages (single plane) of 256 bytes. It reads as
65,536 32-bit words.
The Flash of the SAM7SE32 is organized in 256 pages (single plane) of 128 bytes. It reads as
8192 32-bit words.
The Flash of the SAM7SE32 contains a 128-byte write buffer, accessible through a 32-bit
interface.
The Flash of the SAM7SE512/256 contains a 256-byte write buffer, accessible through a 32-bit
interface.
256M Bytes
256M Bytes
Internal Memory Mapping with GPNVM Bit 2 = 0 (default)
Internal Memory Mapping with GPNVM Bit 2 = 1
0x0000 0000
0x0010 0000
0x0020 0000
0x0000 0000
0x0010 0000
0x0020 0000
0x000F FFFF
0x001F FFFF
0x002F FFFF
0x0030 0000
0x0FFF FFFF
0x000F FFFF
0x001F FFFF
0x002F FFFF
0x0030 0000
0x0FFF FFFF
0x0040 0000
0x0040 0000
0x003F FFFF
0x003F FFFF
Flash Before Remap
ROM Before Remap
SRAM After Remap
Undefined Areas
Undefined Areas
SRAM After Remap
Internal FLASH
Internal FLASH
Internal SRAM
Internal SRAM
Internal ROM
Internal ROM
(Abort)
(Abort)
252 M Bytes
252 M Bytes
1 M Bytes
1 M Bytes
1 M Bytes
1 M Bytes
1 M Bytes
1 M Bytes
1 M Bytes
1 M Bytes
6222F–ATARM–14-Jan-11