2
6175JS–ATARM–28-Jul-11
SAM7S Series Summary
– Counter May Be Stopped While the Processor is in Debug State or in Idle Mode
•Real-time Timer (RTT)
– 32-bit Free-running Counter with Alarm
– Runs Off the Internal RC Oscillator
•One Parallel Input/Output Controller (PIOA)
– Thirty-two (SAM7S512/256/128/64/321/161) or twenty-one (SAM7S32/16) Programmable I/O Lines Multiplexed with up to
Two Peripheral I/Os
– Input Change Interrupt Capability on Each I/O Line
– Individually Programmable Open-drain, Pull-up resistor and Synchronous Output
•Eleven (SAM7S512/256/128/64/321/161) or Nine (SAM7S32/16) Peripheral DMA Controller (PDC) Channels
•One USB 2.0 Full Speed (12 Mbits per Second) Device Port (Except for the SAM7S32/16).
– On-chip Transceiver, 328-byte Configurable Integrated FIFOs
•One Synchronous Serial Controller (SSC)
– 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
•Two (SAM7S512/256/128/64/321/161) or One (SAM7S32/16) Universal Synchronous/Asynchronous Receiver Transmitters
(USART)
– Individual Baud Rate Generator, IrDA® Infrared Modulation/Demodulation
– Support for ISO7816 T0/T1 Smart Card, Hardware Handshaking, RS485 Support
– Full Modem Line Support on USART1 (SAM7S512/256/128/64/321/161)
•One Master/Slave Serial Peripheral Interface (SPI)
– 8- to 16-bit Programmable Data Length, Four External Peripheral Chip Selects
•One Three-channel 16-bit Timer/Counter (TC)
– Three External Clock Input and Two Multi-purpose I/O Pins per Channel (SAM7S512/256/128/64/321/161)
– One External Clock Input and Two Multi-purpose I/O Pins for the first Two Channels Only (SAM7S32/16)
– Double PWM Generation, Capture/Waveform Mode, Up/Down Capability
•One Four-channel 16-bit PWM Controller (PWMC)
•One Two-wire Interface (TWI)
– Master Mode Support Only, All Two-wire Atmel EEPROMs and I2C Compatible Devices Supported
(SAM7S512/256/128/64/321/32)
– Master, Multi-Master and Slave Mode Support, All Two-wire Atmel EEPROMs and I2C Compatible Devices Supported
(SAM7S161/16)
•One 8-channel 10-bit Analog-to-Digital Converter, Four Channels Multiplexed with Digital I/Os
•SAM-BA™ Boot Assistant
– Default Boot program
– Interface with SAM-BA Graphic User Interface
•IEEE® 1149.1 JTAG Boundary Scan on All Digital Pins
•5V-tolerant I/Os, including Four High-current Drive I/O lines, Up to 16 mA Each (SAM7S161/16 I/Os Not 5V-tolerant)
•Power Supplies
– 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
•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 (SAM7S512/256/128/64/321/161) and 48-lead LQFP Green or
48-pad QFN Green Package (SAM7S32/16)