AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 769

• 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

13 Reset Controller (RSTC) ........................................................................ 57
14 Real-time Timer (RTT) ............................................................................ 73
15 Periodic Interval Timer (PIT) .................................................................. 81
16 Watchdog Timer (WDT) .......................................................................... 89
17 Voltage Regulator Mode Controller (VREG) ........................................ 95
18 Memory Controller (MC) ........................................................................ 97
19 Embedded Flash Controller (EFC) ...................................................... 105
12.2Block Diagram .......................................................................................................47
12.3Application Examples ............................................................................................48
12.4Debug and Test Pin Description ............................................................................50
12.5Functional Description ...........................................................................................51
13.1Overview ................................................................................................................57
13.2Block Diagram .......................................................................................................57
13.3Functional Description ...........................................................................................58
13.4Reset Controller (RSTC) User Interface ................................................................67
14.1Overview ................................................................................................................73
14.2Block Diagram .......................................................................................................73
14.3Functional Description ...........................................................................................73
14.4Real-time Timer (RTT) User Interface ...................................................................75
15.1Overview ................................................................................................................81
15.2Block Diagram .......................................................................................................81
15.3Functional Description ...........................................................................................82
15.4Periodic Interval Timer (PIT) User Interface ..........................................................83
16.1Overview ................................................................................................................89
16.2Block Diagram .......................................................................................................89
16.3Functional Description ...........................................................................................90
16.4Watchdog Timer (WDT) User Interface .................................................................92
17.1Overview ................................................................................................................95
17.2Voltage Regulator Power Controller (VREG) User Interface .................................96
18.1Overview ................................................................................................................97
18.2Block Diagram .......................................................................................................97
18.3Functional Description ...........................................................................................97
18.4Memory Controller (MC) User Interface ..............................................................100
19.1Overview .............................................................................................................105
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
769