AT91SAM7S256C-MU Atmel, AT91SAM7S256C-MU Datasheet - Page 775

• 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

6175K–ATARM–30-Aug-10
25 Power Management Controller (PMC) ................................................ 191
26 Debug Unit (DBGU) .............................................................................. 215
27 Parallel Input/Output Controller (PIO) ................................................ 239
28 Serial Peripheral Interface (SPI) ......................................................... 265
29 Two-wire Interface (TWI) AT91SAM7S512/256/128/64/321/32 ........... 291
25.1
25.2
25.3
25.4
25.5
25.6
25.7
25.8
25.9
26.1
26.2
26.3
26.4
26.5
27.1
27.2
27.3
27.4
27.5
27.6
28.1
28.2
28.3
28.4
28.5
28.6
28.7
29.1
29.2
29.3
Description .....................................................................................................191
Master Clock Controller .................................................................................191
Processor Clock Controller ............................................................................192
USB Clock Controller .....................................................................................192
Peripheral Clock Controller ............................................................................192
Programmable Clock Output Controller .........................................................193
Programming Sequence ................................................................................193
Clock Switching Details .................................................................................197
Power Management Controller (PMC) User Interface ..................................200
Overview ........................................................................................................215
Block Diagram ...............................................................................................216
Product Dependencies ..................................................................................217
UART Operations ..........................................................................................217
Debug Unit (DBGU) User Interface ..............................................................224
Overview ........................................................................................................239
Block Diagram ...............................................................................................240
Product Dependencies ..................................................................................241
Functional Description ...................................................................................242
I/O Lines Programming Example ...................................................................246
Parallel Input/Output Controller (PIO) User Interface ....................................248
Overview ........................................................................................................265
Block Diagram ...............................................................................................266
Application Block Diagram .............................................................................266
Signal Description .........................................................................................267
Product Dependencies ..................................................................................267
Functional Description ...................................................................................268
Serial Peripheral Interface (SPI) User Interface User Interface .....................277
Overview ........................................................................................................291
List of Abbreviations ......................................................................................291
Block Diagram ...............................................................................................292
AT91SAM7S Series Preliminary
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