AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 31

• 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

9.5
9.6
9.7
Debug Unit
Note:
Periodic Interval Timer
Watchdog Timer
Comprises:
Two-pin UART
Debug Communication Channel Support
Chip ID Registers
20-bit programmable counter plus 12-bit interval counter
12-bit key-protected Programmable Counter running on prescaled SCLK
Provides reset or interrupt signals to the system
Counter may be stopped while the processor is in debug state or in idle mode
Refer to the errata section of the datasheet for updates on chip ID.
One two-pin UART
One Interface for the Debug Communication Channel (DCC) support
One set of Chip ID Registers
One Interface providing ICE Access Prevention
Implemented features are compatible with the USART
Programmable Baud Rate Generator
Parity, Framing and Overrun Error
Automatic Echo, Local Loopback and Remote Loopback Channel Modes
Offers visibility of COMMRX and COMMTX signals from the ARM Processor
Identification of the device revision, sizes of the embedded memories, set of peripherals
Chip ID is 0x270B0A40 for AT91SAM7S512 Rev A
Chip ID is 0x270B0A4F for AT91SAM7S512 Rev B
Chip ID is 0x270D0940 for AT91SAM7S256 Rev A
Chip ID is 0x270B0941 for AT91SAM7S256 Rev B
Chip ID is 0x270B0942 for AT91SAM7S256 Rev C
Chip ID is 0x270B0943 for AT91SAM7S256 Rev D
Chip ID is 0x270C0740 for AT91SAM7S128 Rev A
Chip ID is 0x270A0741 for AT91SAM7S128 Rev B
Chip ID is 0x270A0742 for AT91SAM7S128 Rev C
Chip ID is 0x270A0743 for AT91SAM7S128 Rev D
Chip ID is 0x27090540 for AT91SAM7S64 Rev A
Chip ID is 0x27090543 for AT91SAM7S64 Rev B
Chip ID is 0x27090544 for AT91SAM7S64 Rev C
Chip ID is 0x27080342 for AT91SAM7S321 Rev A
Chip ID is 0x27080340 for AT91SAM7S32 Rev A
Chip ID is 0x27080341 for AT91SAM7S32 Rev B
Chip ID is 0x27050241 for AT9SAM7S161 Rev A
Chip ID is 0x27050240 for AT91SAM7S16 Rev A
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
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