Описание
The SAM7S is a series of low pin count Flash microcontrollers based on the 32-bit ARM RISC processor. It features a high-speed Flash and an 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 security bit protect the firmware from accidental overwrite and preserves its confidentiality.The SAM7S Series 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 SAM7S Series are general-purpose microcontrollers. Their integrated USB Device port makes them ideal devices for peripheral applications requiring connectivity to a PC or cellular phone.
- Incorporates the ARM7TDMI® ARM® Thumb® Processor
- High-performance 32-bit RISC Architecture
- High-density 16-bit Instruction Set
- Leader in MIPS/Watt
- EmbeddedICE™ In-circuit Emulation, Debug Communication Channel Support
- Internal High-speed Flash
- 256 Kbytes – Organized in 1024 Pages of 256 Bytes (Single Plane)
- Single Cycle Access at Up to 30 MHz in Worst Case Conditions
- Prefetch Buffer Optimizing Thumb Instruction Execution at Maximum Speed
- Page Programming Time: 6 ms, Including Page Auto-erase, Full Erase Time: 15 ms
- 10,000 Write Cycles, 10-year Data Retention Capability, Sector Lock Capabilities, Flash Security Bit
- Fast Flash Programming Interface for High Volume Production
- Internal High-speed SRAM, Single-cycle Access at Maximum Speed – 64 Kbytes
- Memory Controller (MC)
- Embedded Flash Controller, Abort Status and Misalignment Detection
- Reset Controller (RSTC)
- Based on Power-on Reset and Low-power Factory-calibrated Brown-out Detector
- Provides External Reset Signal Shaping and Reset Source Status
- Power Management Controller (PMC)
- Software Power Optimization Capabilities, Including Slow Clock Mode (Down to 500 Hz) and Idle Mode
- Three Programmable External Clock Signals
