AT91SAM7S256-AU-001 Atmel, AT91SAM7S256-AU-001 Datasheet - Page 2

• Manufacturer Part Number: AT91SAM7S256-AU-001
• Description: IC ARM7 MCU 32BIT 256K 64LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7S256-AU-001

• Package / Case: 64-LQFP
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 55MHz
• Number Of I /o: 32
• Core Processor: ARM7
• Program Memory Type: FLASH
• Ram Size: 64K x 8
• Program Memory Size: 256KB (256K x 8)
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Connectivity: I²C, SPI, SSC, UART/USART, USB
• Core Size: 16/32-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: AT91SAM7S256AU001

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2
Real-time Timer (RTT)
One Parallel Input/Output Controller (PIOA)
Eleven (AT91SAM7S512/256/128/64/321/161) or Nine (AT91SAM7S32/16) Peripheral DMA Controller (PDC) Channels
One USB 2.0 Full Speed (12 Mbits per Second) Device Port (Except for the AT91SAM7S32/16).
One Synchronous Serial Controller (SSC)
Two (AT91SAM7S512/256/128/64/321/161) or One (AT91SAM7S32/16) Universal Synchronous/Asynchronous Receiver
Transmitters (USART)
One Master/Slave Serial Peripheral Interface (SPI)
One Three-channel 16-bit Timer/Counter (TC)
One Four-channel 16-bit PWM Controller (PWMC)
One Two-wire Interface (TWI)
One 8-channel 10-bit Analog-to-Digital Converter, Four Channels Multiplexed with Digital I/Os
SAM-BA
IEEE
5V-tolerant I/Os, including Four High-current Drive I/O lines, Up to 16 mA Each (AT91SAM7S161/16 I/Os Not 5V-tolerant)
Power Supplies
Fully Static Operation: Up to 55 MHz at 1.65V and 85°C Worst Case Conditions
Available in 64-lead LQFP Green or 64-pad QFN Green Package (AT91SAM7S512/256/128/64/321/161) and 48-lead LQFP Green
or 48-pad QFN Green Package (AT91SAM7S32/16)
– 32-bit Free-running Counter with Alarm
– Runs Off the Internal RC Oscillator
– Thirty-two (AT91SAM7S512/256/128/64/321/161) or twenty-one (AT91SAM7S32/16) Programmable I/O Lines Multiplexed
– Input Change Interrupt Capability on Each I/O Line
– Individually Programmable Open-drain, Pull-up resistor and Synchronous Output
– On-chip Transceiver, 328-byte Configurable Integrated FIFOs
– Independent Clock and Frame Sync Signals for Each Receiver and Transmitter
– I²S Analog Interface Support, Time Division Multiplex Support
– High-speed Continuous Data Stream Capabilities with 32-bit Data Transfer
– Individual Baud Rate Generator, IrDA
– Support for ISO7816 T0/T1 Smart Card, Hardware Handshaking, RS485 Support
– Full Modem Line Support on USART1 (AT91SAM7S512/256/128/64/321/161)
– 8- to 16-bit Programmable Data Length, Four External Peripheral Chip Selects
– Three External Clock Input and Two Multi-purpose I/O Pins per Channel (AT91SAM7S512/256/128/64/321/161)
– One External Clock Input and Two Multi-purpose I/O Pins for the first Two Channels Only (AT91SAM7S32/16)
– Double PWM Generation, Capture/Waveform Mode, Up/Down Capability
– Master Mode Support Only, All Two-wire Atmel EEPROMs and I
– Master, Multi-Master and Slave Mode Support, All Two-wire Atmel EEPROMs and I
– Default Boot program
– Interface with SAM-BA Graphic User Interface
– Embedded 1.8V Regulator, Drawing up to 100 mA for the Core and External Components
– 3.3V or 1.8V VDDIO I/O Lines Power Supply, Independent 3.3V VDDFLASH Flash Power Supply
– 1.8V VDDCORE Core Power Supply with Brown-out Detector
with up to Two Peripheral I/Os
(AT91SAM7S512/256/128/64/321/32)
(AT91SAM7S161/16)
®
1149.1 JTAG Boundary Scan on All Digital Pins
AT91SAM7S Series Summary
™
Boot Assistant
®
Infrared Modulation/Demodulation
2
C Compatible Devices Supported
2
C Compatible Devices Supported
6175FS–ATARM–03-Dec-07