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AT91SAM7S64 Datasheet(PDF) 2 Page - ATMEL Corporation |
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AT91SAM7S64 Datasheet(HTML) 2 Page - ATMEL Corporation |
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2 / 491 page  2 6070B–ATARM–25-Feb-05 AT91SAM7S64 Preliminary – High-speed Continuous Data Stream Capabilities with 32-bit Data Transfer • Two 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 • 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 Inputs, Two Multi-purpose I/O Pins per Channel – 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 Supported • One 8-channel 10-bit Analog-to-Digital Converter, Four Channels Multiplexed with Digital I/Os • 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 • Power Supplies – Embedded 1.8V Regulator, Drawing up to 100 mA for the Core and External Components – 3.3V VDDIO I/O Lines Power Supply, Independent 3.3V VDDFLASH Flash Power Supply – 1.8V VDDCORE Core Power Supply with Brownout Detector • Fully Static Operation: Up to 55 MHz at 1.65V and 85 ° C Worst Case Conditions • Available in a 64-lead LQFP Package 1. Description Atmel’s AT91SAM7S64 is a member of a series of low pincount Flash microcontrollers based on the 32-bit ARM RISC processor. It features a 64 Kbyte high-speed Flash and a 16 Kbyte SRAM, a large set of peripherals, including a USB 2.0 device, and a complete set of system functions minimizing the number of external components. The device is an ideal migration path for 8-bit microcontroller users looking for additional performance and extended memory. The embedded Flash memory can be programmed in-system via the JTAG-ICE interface or via a parallel interface on a production programmer prior to mounting. Built-in lock bits and a secu- rity bit protect the firmware from accidental overwrite and preserves its confidentiality. The AT91SAM7S64 system controller includes a reset controller capable of managing the power-on sequence of the microcontroller and the complete system. Correct device operation can be monitored by a built-in brownout detector and a watchdog running off an integrated RC oscillator. The AT91SAM7S64 is a general-purpose microcontroller. Its integrated USB Device port makes it an ideal device for peripheral applications requiring connectivity to a PC or cellular phone. Its aggressive price point and high level of integration pushes its scope of use far into the cost-sen- sitive, high-volume consumer market. |
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