AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 768

• 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
10 Peripherals .............................................................................................. 33
11 ARM7TDMI Processor Overview ........................................................... 41
12 Debug and Test Features ...................................................................... 47
System Controller .................................................................................. 25
8.5SAM7S321/32 .........................................................................................................19
8.6SAM7S161/16 .........................................................................................................19
8.7Memory Mapping .....................................................................................................21
8.8Embedded Flash .....................................................................................................22
8.9Fast Flash Programming Interface ..........................................................................25
8.10SAM-BA Boot Assistant .........................................................................................25
9.1Reset Controller .......................................................................................................28
9.2Clock Generator ......................................................................................................29
9.3Power Management Controller ................................................................................29
9.4Advanced Interrupt Controller ..................................................................................30
9.5Debug Unit ...............................................................................................................31
9.6Periodic Interval Timer .............................................................................................31
9.7Watchdog Timer ......................................................................................................31
9.8Real-time Timer .......................................................................................................32
9.9PIO Controller ..........................................................................................................32
9.10Voltage Regulator Controller .................................................................................32
10.1User Interface ........................................................................................................33
10.2Peripheral Identifiers ..............................................................................................33
10.3Peripheral Multiplexing on PIO Lines ....................................................................34
10.4PIO Controller A Multiplexing ................................................................................35
10.5Serial Peripheral Interface .....................................................................................37
10.6Two-wire Interface .................................................................................................37
10.7USART ..................................................................................................................37
10.8Serial Synchronous Controller ...............................................................................38
10.9Timer Counter ........................................................................................................38
10.10PWM Controller ...................................................................................................38
10.11USB Device Port (Does not pertain to SAM7S32/16) ..........................................39
10.12Analog-to-digital Converter ..................................................................................39
11.1Overview ................................................................................................................41
11.2ARM7TDMI Processor ...........................................................................................42
12.1Description .............................................................................................................47
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
768