AT91SAM7S256C-MU Atmel, AT91SAM7S256C-MU Datasheet - Page 772

• 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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AT91SAM7S Series Preliminary
9
10 Peripherals ............................................................................................. 34
11 ARM7TDMI Processor Overview .......................................................... 41
System Controller .................................................................................. 26
8.3
8.4
8.5
8.6
8.7
8.8
8.9
8.10
9.1
9.2
9.3
9.4
9.5
9.6
9.7
9.8
9.9
9.10
10.1
10.2
10.3
10.4
10.5
10.6
10.7
10.8
10.9
10.10
10.11
10.12
11.1
11.2
AT91SAM7S128 ..............................................................................................18
AT91SAM7S64 ................................................................................................19
AT91SAM7S321/32 .........................................................................................19
AT91SAM7S161/16 .........................................................................................19
Memory Mapping .............................................................................................21
Embedded Flash .............................................................................................22
Fast Flash Programming Interface ..................................................................25
SAM-BA Boot Assistant ...................................................................................25
Reset Controller ...............................................................................................29
Clock Generator ..............................................................................................30
Power Management Controller ........................................................................30
Advanced Interrupt Controller ..........................................................................31
Debug Unit .......................................................................................................32
Periodic Interval Timer .....................................................................................32
Watchdog Timer ..............................................................................................32
Real-time Timer ...............................................................................................32
PIO Controller ..................................................................................................33
Voltage Regulator Controller ...........................................................................33
User Interface ..................................................................................................34
Peripheral Identifiers ........................................................................................34
Peripheral Multiplexing on PIO Lines ..............................................................35
PIO Controller A Multiplexing ..........................................................................36
Serial Peripheral Interface ...............................................................................38
Two-wire Interface ...........................................................................................38
USART ............................................................................................................38
Serial Synchronous Controller .........................................................................39
Timer Counter ..................................................................................................39
PWM Controller ...............................................................................................40
USB Device Port (Does not pertain to AT91SAM7S32/16) .............................40
Analog-to-digital Converter ..............................................................................40
Overview ..........................................................................................................41
ARM7TDMI Processor .....................................................................................42
6175K–ATARM–30-Aug-10