AT91SAM7S32数据手册Microchip中文资料规格书

描述 Description

Microchip's ARM®-based SAM7S32 is a member of the SAM7S series of flash microcontrollers based on the 32-bit ARM7TDMI RISC processor.
It operates at a maximum speed of 55MHz and features 32KB of flash memory and 8KB of SRAM.
The peripheral set includes a UART, USART, TWI (I2C), SPI SSC, two PWM timers, three 16-bit timers, RTT, 8x10-bit ADC and 21 IO lines.
It achieves single-cycle instruction access from embedded flash at 27 MIPS.
The multi-layer bus matrix, multiple SRAM banks, PDC, and DMA support parallel tasks and maximize data throughput.
The SAM7S32 operates from 1.65V to 3.6V and is available in 48-pin LQFP and QFN packages.

特性 Features

Microcontroller FeaturesCore·ARM7TDMI® ARM® Thumb® Processor 32-bit RISC Architecture
·High-density 16-bit Instruction Set
·EmbeddedICE™ In-circuit Emulation, Debug Communication Channel Support
Memories·32 Kbytes, Organized in 256 Pages of 128 Bytes (Single Plane)
·8 Kbytes embedded SRAM, Single-cycle Access at Maximum Speed  
·Memory Controller (MC)
·Memory Protection Unit
System·Embedded 1.8V Regulator, Drawing up to 100 mA for the Core and External Components
·Based on Power-on Reset Cells and Low-power Factory-calibrated Brownout Detector
·Low-power RC Oscillator, 3 to 20 MHz On-chip Oscillator and One PLL
·Power Management Controller (PMC)
·Advanced Interrupt Controller (AIC)
·Two-wire UART and Support for Debug Communication Channel interrupt, Programmable ICE Access Prevention
·20-bit Programmable Counter plus 12-bit Interval Counter
·Windowed Watchdog (WDT)
·Real-time Timer (RTT)
·32 Parallel Input/Output Controllers (PIO)
·Eleven Peripheral DMA Controller (PDC) Channels
·Four High-current Drive I/O lines, Up to 16 mA Each
Package·48-lead LQFP
·48-pad QFN
Peripheral Features·One Synchronous Serial Controller (SSC)
·Two Universal Synchronous/Asynchronous Receiver Transmitters (USART)
·One Master/Slave Serial Peripheral Interfaces (SPI)
·One USB 2.0 Full Speed (12 Mbits per second) Device Port
·One Three-channel 16-bit Timer/Counter (TC)
·One Four-channel 16-bit PWM Controller (PWMC)
·One Two-wire Interface (TWI)
Analog Features·One 8-channel 10-bit Analog-to-Digital Converter, Four Channels Multiplexed with Digital I/Os
Fully Static Operation·Up to 55 MHz at 1.8V and 85⋅ C Worst Case Conditions
·Up to 48 MHz at 1.65V and 85⋅ C Worst Case Conditions
Debugger Development Support·SAM-BA - Interface with SAM-BA Graphic User Interface
·IEEE® 1149.1 JTAG Boundary Scan on All Digital Pins