AT91SAM7SE256B-AUR Atmel, AT91SAM7SE256B-AUR Datasheet - Page 89
AT91SAM7SE256B-AUR
Manufacturer Part Number
AT91SAM7SE256B-AUR
Description
IC ARM7 MCU FLASH 256K 128-LQFP
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91SAM7SE256-AU.pdf
(673 pages)
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
Available stocks
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Part Number
Manufacturer
Quantity
Price
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18.4
18.4.1
6222F–ATARM–14-Jan-11
External Memory Areas
Internal Memory Mapping
Figure 18-2
Figure 18-2. External Memory Areas
Within the Internal Memory address space, the Address Decoder of the Memory Controller
decodes eight more address bits to allocate 1-Mbyte address spaces for the embedded
memories.
The allocated memories are accessed all along the 1-Mbyte address space and so are repeated
n times within this address space, n equaling 1M bytes divided by the size of the memory.
When the address of the access is undefined within the internal memory area, the Address
Decoder returns an Abort to the master.
shows the assignment of the 256-Mbyte memory areas.
6 x 256M Bytes
256M Bytes
256M Bytes
256M Bytes
256M Bytes
256M Bytes
256M Bytes
256M Bytes
256M Bytes
256M Bytes
256M Bytes
1,536 bytes
0xF000 0000
0x0000 0000
0x1000 0000
0x2000 0000
0x3000 0000
0x4000 0000
0x5000 0000
0x6000 0000
0x7000 0000
0x8000 0000
SAM7SE512/256/32 Preliminary
0xEFFF FFFF
0xFFFF FFFF
0x0FFF FFFF
0x1FFF FFFF
0x2FFF FFFF
0x3FFF FFFF
0x4FFF FFFF
0x5FFF FFFF
0x6FFF FFFF
0x7FFF FFFF
0x8FFF FFFF
0x9000 0000
Internal Memories
Chip Select 0
Chip Select 1
Chip Select 2
Chip Select 3
Chip Select 4
Chip Select 5
Chip Select 6
Chip Select 7
Peripherals
Undefined
(Abort)
External
Interface
Bus
EBI
89
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