AT91SAM7S321-AU Atmel, AT91SAM7S321-AU Datasheet - Page 594

• Manufacturer Part Number: AT91SAM7S321-AU
• Description: IC ARM7 MCU FLASH 32K 64LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7S321-AU

• 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: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K 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-LQFP
• Processor Series: AT91SAMx
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 8 KB
• Interface Type: I2C, I2S, SPI, SSC, TWI, UART, USB
• Maximum Clock Frequency: 55 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 10 bit
• Operating Supply Voltage: 1.8 V to 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JTRACE-ARM-2M, KSK-AT91SAM7S-PL, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: AT91SAM-ICE, AT91-ISP, AT91SAM7S-EK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Controller Family/series: AT91SAM7xxxx
• No. Of I/o's: 32
• Ram Memory Size: 8KB
• Cpu Speed: 55MHz
• No. Of Timers: 3
• Rohs Compliant: Yes
• 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: Lead free / RoHS Compliant

6175G–ATARM–22-Nov-06
13 Reset Controller (RSTC) ........................................................................ 57
14 Real-time Timer (RTT) ............................................................................ 73
15 Parallel Input Output Controller (PIO) .................................................. 79
16 Periodic Interval Timer (PIT) ............................................................... 105
17 Watchdog Timer (WDT) ....................................................................... 111
18 Voltage Regulator Mode Controller (VREG) ...................................... 117
12.2
12.3
12.4
12.5
13.1
13.2
13.3
13.4
14.1
14.2
14.3
14.4
15.1
15.2
15.3
15.4
15.5
15.6
16.1
16.2
16.3
16.4
17.1
17.2
17.3
17.4
18.1
18.2
Block Diagram ...................................................................................................47
Application Examples ........................................................................................48
Debug and Test Pin Description ........................................................................50
Functional Description .......................................................................................51
Overview ...........................................................................................................57
Block Diagram ...................................................................................................57
Functional Description .......................................................................................58
Reset Controller (RSTC) User Interface ............................................................67
Overview ...........................................................................................................73
Block Diagram ...................................................................................................73
Functional Description .......................................................................................73
Real-time Timer (RTT) User Interface ...............................................................75
Overview ...........................................................................................................79
Block Diagram ...................................................................................................80
Product Dependencies ......................................................................................81
Functional Description .......................................................................................82
I/O Lines Programming Example ......................................................................87
User Interface ....................................................................................................88
Overview .........................................................................................................105
Block Diagram .................................................................................................105
Functional Description .....................................................................................106
Periodic Interval Timer (PIT) User Interface ....................................................108
Overview .........................................................................................................111
Block Diagram .................................................................................................111
Functional Description .....................................................................................112
Watchdog Timer (WDT) User Interface ...........................................................114
Overview .........................................................................................................117
Voltage Regulator Power Controller (VREG) User Interface ...........................118
AT91SAM7S Series Preliminary
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