原标题：Microchip PIC24FJ64GA004 Explorer 16开发方案

　　microchip 公司的PIC24FJ64GA004是通用16位闪存MCU,具有广泛的外设特性和增强的计算性能.CPU采用改进性哈佛架构,32MHz时的性能高达16MIPS,8MHz的内部振荡器,17位x17位单周期硬件乘法器,32位x16位硬件除法器, 16位x16位工作寄存器阵列,工作电2.0-3.6V,主要用在消费类电子如保全系统、热控制、音响设备,汽车电子如车身控制、操控系统,工业领域如建筑物监控系统、保全/出入系统、感应器等.本文介绍了PIC24FJ64GA004主要特性,方框图和PIC24F CPU方框图以及Explorer 16低成本开发板主要特性和详细电路图.

　　PIC24FJ64GA004 Family: General Purpose 16-Bit Flash Microcontrollers This family introduces a new line of Microchip devices: a 16-bit microcontroller family with a broad peripheral feature set and enhanced computational performance.

　　The PIC24FJ64GA004 family offers a new migration option for those high-performance applications which may be outgrowing their 8-bit platforms, but don’t require the numerical processing power of a digital signal processor.

　　PIC24FJ64GA004系列主要特性:

　　High-Performance CPU:

　　• Modified Harvard Architecture

　　• Up to 16 MIPS Operation @ 32 MHz

　　• 8 MHz Internal Oscillator with 4x PLL Option and Multiple Divide Options

　　• 17-Bit by 17-Bit Single-Cycle Hardware Multiplier

　　• 32-Bit by 16-Bit Hardware Divider

　　• 16-Bit x 16-Bit Working Register Array

　　• C Compiler Optimized Instruction Set Architecture:

　　- 76 base instructions

　　- Flexible addressing modes

　　• Two Address Generation Units for Separate Read and Write Addressing of Data Memory

　　Special Microcontroller Features:

　　• Operating Voltage Range of 2.0V to 3.6V

　　• 5.5V Tolerant Input (digital pins only)

　　• High-Current Sink/Source (18 mA/18 mA) on All I/O Pins

　　• Flash Program Memory:

　　- 10,000 erase/write

　　- 20-year data retention minimum

　　• Power Management modes:

　　- Sleep, Idle, Doze and Alternate Clock modes

　　- Operating current 650 A/MIPS typical at 2.0V

　　- Sleep current 150 nA typical at 2.0V

　　• Fail-Safe Clock Monitor Operation:

　　- Detects clock failure and switches to on-chip, low-power RC oscillator

　　• On-Chip, 2.5V Regulator with Tracking mode

　　• Power-on Reset (POR), Power-up Timer (PWRT) and Oscillator Start-up Timer (OST)

　　• Flexible Watchdog Timer (WDT) with On-Chip, Low-Power RC Oscillator for Reliable Operation

　　• In-Circuit Serial Programming. (ICSP.) and In-Circuit Debug (ICD) via 2 Pins

　　• JTAG Boundary scan and Programming Support

　　Analog Features:

　　• 10-Bit, up to 13-Channel Analog-to-Digital Converter:

　　- 500 ksps conversion rate

　　- Conversion available during Sleep and Idle

　　• Dual Analog Comparators with Programmable Input/Output Configuration

　　Peripheral Features:

　　• Peripheral Pin Select:

　　- Allows independent I/O mapping of many peripherals

　　- Up to 26 available pins (44-pin devices)

　　- Continuous hardware integrity checking and safety interlocks prevent unintentional configuration changes

　　. 8-Bit Parallel Master/Slave Port (PMP/PSP):

　　- Up to 16-bit multiplexed addressing, with up to 11 dedicated address pins on 44-pin devices

　　- Programmable polarity on control lines

　　• Hardware Real-Time Clock/Calendar (RTCC):

　　Provides clock, calendar and alarm functions

　　• Programmable Cyclic Redundancy Check (CRC)

　　• Two 3-Wire/4-Wire SPI modules (support 4 Frame modes) with 8-Level FIFO Buffer

　　• Two I2C. modules support Multi-Master/Slave mode and 7-Bit/10-Bit Addressing

　　• Two UART modules:

　　- Supports RS-485, RS-232, and LIN 1.2

　　- On-chip hardware encoder/decoder for IrDA®

　　- Auto-wake-up on Start bit

　　- Auto-Baud Detect

　　- 4-level deep FIFO buffer

　　• Five 16-Bit Timers/Counters with Programmable Prescaler

　　• Five 16-Bit Capture Inputs

　　• Five 16-Bit Compare/PWM Outputs

　　• Configurable Open-Drain Outputs on Digital I/O Pins

　　• Up to 4 External Interrupt Sources

　　图1.PIC24FJ64GA004系列方框图

　　图2.PIC24F CPU 核方框图

　　Explorer 16低成本开发板

　　The Explorer 16 is a low cost, efficient development board to evaluate the features and performance of Microchips new PIC24 Microcontroller, the dsPIC33 Digital Signal Controller (DSC) families, and the new 32-bit PIC32MX devices. Coupled with the MPLAB ICD 2 In Circuit Debugger or MPLAB REAL ICE, real-time emulation and debug facilities speed evaluation and prototyping of application circuitry. The Explorer 16 100-pin features two interchangeable Plug-In Modules (PIMs), one each for the PIC24FJ128GA010 and the dsPIC33FJ256GP710 DSC. The Explorer 16 44-pin features a Plug-In Module (PIM) for the PIC24FJ64GA004

　　图3.Explorer 16开发板外形图

　　Explorer 16开发板主要特性:

　　• Includes PIC24FJ128GA010 and the dsPIC33FJ256GP710 DSC Digital Signal Controller PIMs (100-pin version) or the PIC24FJ64GA004 PIM (44-pin version).

　　• Alpha-numeric 16 x 2 LCD display

　　• Interfaces to MPLAB ICD 2, MPLAB REAL ICE, USB, and RS-232

　　• Includes Microchips TC1047A high accuracy, analog output temperature sensor

　　• Expansion connector to access full devices pin-out and bread board prototyping area

　　• PICTailTM Plus connector for expansion boards

　　• Full documentation CD includes users guide, schematics and PWB layout

　　This board also is included in the Explorer 16 Starter Kit, along with MPLAB ICD 2, and MPLAB C30 C compiler.

　　图4.Explorer 16开发板电路图(1)

　　图5.Explorer 16开发板电路图(2)

　　图6.Explorer 16开发板电路图(3)

　　图7.Explorer 16开发板电路图(4)

　　图8.Explorer 16开发板电路图(5)

　　图9.Explorer 16开发板电路图(6)