AT91SAM7S256C-MU Atmel, AT91SAM7S256C-MU Datasheet - Page 150

• Manufacturer Part Number: AT91SAM7S256C-MU
• Description: IC ARM7 MCU 32BIT 256K 64-QFN
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7S256C-MU

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: I²C, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 64K 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: 64-VQFN Exposed Pad, 64-HVQFN, 64-SQFN, 64-DHVQFN
• Processor Series: AT91
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 64 KB
• Interface Type: SPI, TWI, USART, USB
• Maximum Clock Frequency: 55 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 5
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Temperature Range: - 40 C to + 85 C
• For Use With: AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9AT91SAM7S-EK - KIT EVAL FOR ARM AT91SAM7S
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: AT91SAM7S256-MU; AT91SAM7S256-MU

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150
Hardware and Software Constraints
AT91SAM7S Series Preliminary
Table 21-4.
Table 21-5.
Device
AT91SAM7S512
AT91SAM7S256
AT91SAM7S128
AT91SAM7S64
AT91SAM7S321
AT91SAM7S32
AT91SAM7S161
AT91SAM7S16
Peripheral
DBGU
DBGU
• SAM-BA boot copies itself in the SRAM and uses a block of internal SRAM for variables
• USB requirements: (Does not pertain to AT91SAM7S32/16)
and stacks. The remaining available sizes for the user codes are as follows: 57344 bytes for
AT91SAM7S512, 57344 bytes for AT91SAM7S256, 24576 bytes for AT91SAM7S128,
8192 bytes for AT91SAM7S64, 2048 bytes for AT91SAM7S321 and AT91SAM7S32, 3840
bytes for AT91SAM7S161 and AT91SAM7S16.
– 18.432 MHz Quartz
– PIOA16 dedicated to the USB Pull-up
User Area Addresses
Pins Driven during Boot Program Execution
Start Address
0x202000
0x202000
0x202000
0x202000
0x202000
0x201400
0x200000
0x200000
Pin
DRXD
DTXD
End Address
0x210000
0x210000
0x208000
0x204000
0x210000
0x201C00
0200F00
0200F00
Size (bytes)
57344
57344
24576
8192
2048
2048
3840
3840
PIO Line
6175K–ATARM–30-Aug-10
PA10
PA9