AT91SAM7XC256B-CU Atmel, AT91SAM7XC256B-CU Datasheet - Page 4

• Manufacturer Part Number: AT91SAM7XC256B-CU
• Description: MCU ARM 256K HS FLASH 100-TFBGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7XC256B-CU

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: CAN, Ethernet, I²C, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 62
• 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: 100-TFBGA
• Processor Series: 91S
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 64 KB
• Interface Type: CAN, Ethernet, SPI, TWI, USART, USB
• Maximum Clock Frequency: 55 MHz
• Number Of Programmable I/os: 62
• Number Of Timers: 3
• 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
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

1. Description
1.1
Table 1-1.
4
Device
AT91SAM7XC512
AT91SAM7XC256
AT91SAM7XC128
Configuration Summary of the AT91SAM7XC512/256/128
AT91SAM7XC512/256/128 Preliminary
Configuration Summary
Flash
512K bytes
256K bytes
128K bytes
Atmel's AT91SAM7XC512/256/128 is a member of a series of highly integrated Flash microcon-
trollers based on the 32-bit ARM RISC processor. It features 512/256/128 Kbyte high-speed
Flash and 128/64/32 Kbyte SRAM, a large set of peripherals, including an 802.3 Ethernet MAC,
a CAN controller, an AES 128 Encryption accelerator and a Triple Data Encryption System. A
complete set of system functions minimizes the number of external components.
The embedded Flash memory can be programmed in-system via the JTAG-ICE interface or via
a parallel interface on a production programmer prior to mounting. Built-in lock bits and a secu-
rity bit protect the firmware from accidental overwrite and preserve its confidentiality.
The AT91SAM7XC512/256/128 system controller includes a reset controller capable of manag-
ing the power-on sequence of the microcontroller and the complete system. Correct device
operation can be monitored by a built-in brownout detector and a watchdog running off an inte-
grated RC oscillator.
By combining the ARM7TDMI processor with on-chip Flash and SRAM, and a wide range of
peripheral functions, including USART, SPI, CAN Controller, Ethernet MAC, AES 128 accelera-
tor, TDES, Timer Counter, RTT and Analog-to-Digital Converters on a monolithic chip, the
AT91SAM7XC512/256/128 is a powerful device that provides a flexible, cost-effective solution
to many embedded control applications requiring secure communication over, for example,
Ethernet, CAN wired and Zigbee
The AT91SAM7XC512, AT91SAM7XC256 and AT91SAM7XC128 differ only in memory sizes.
Table 1-1
summarizes the configurations of the two devices.
Flash Organization
dual plane
single plane
single plane
™
wireless networks.
SRAM
128K bytes
64K bytes
32K bytes
AES
1 AES 256/192/128
1 AES 128
1 AES 128
6209DS–ATARM–17-Feb-09
TDES
1
1
1