Описание
The PIC24FJ128GA310 family adds many new features to Microchip‘s 16-bit microcontrollers, including new ultra low-power features, Direct Memory Access (DMA) for peripherals, and a built-in LCD Controller and Driver. Together, these provide a wide range of powerful features in one economical and power-saving package. Core Features 16-BIT ARCHITECTURE Central to all PIC24F devices is the 16-bit modified Harvard architecture, first introduced with Microchip’s dsPIC Digital Signal Controllers (DSCs). The PIC24F CPU core offers a wide range of enhancements, such as: 16-bit data and 24-bit address paths with the ability to move information between data and memory spaces Linear addressing of up to 12 Mbytes (program space) and 32 Kbytes (data) A 16-element working register array with built-in software stack support A 17 x 17 hardware multiplier with support for integer math Hardware support for 32 by 16-bit division An instruction set that supports multiple addressing modes and is optimized for high-level languages, such as ‘C’ Operational performance up to 16 MIPS nanoWatt XLP POWER-SAVING TECHNOLOGY The PIC24FJ128GA310 family of devices introduces a greatly-expanded range of power-saving operating modes for the ultimate in power conservation. The new modes include: Retention Sleep, with essential circuits being powered from a separate low-voltage regulator Deep Sleep without RTCC, for the lowest possible power consumption under software control VBAT mode (with or without RTCC), to continue operation limited operation from a back-up battery when VDD is removed Many of these new low-power modes also support the continuous operation of the low-power, on-chip Real-Time Clock/Calendar (RTCC), making it possible for an application to keep time while the device is otherwise asleep. Aside from these new features, PIC24FJ128GA310 family devices also include all of the legacy power-saving features of previous PIC24F microcontrollers, such as: On-the-Fly Clock Switching, allowing the selection of a lower-power clock during run time Doze Mode Operation, for maintaining peripheral clock speed while slowing the CPU clock Instruction-Based Power-Saving Modes, for quick invocation of Idle and the many Sleep modes. OSCILLATOR OPTIONS AND FEATURES All of the devices in the PIC24FJ128GA310 family offer five different oscillator options, allowing users a range of choices in developing application hardware. These include: Two Crystal modes Two External Clock modes A Phase Lock Loop (PLL) frequency multiplier, which allows clock speeds of up to 32 MHz A Fast Internal Oscillator (FRC) (nominal 8 MHz output) with multiple frequency divider options A separate Low-Power Internal RC Oscillator (LPRC) (31 kHz nominal) for low-power, timing-insensitive applications. The internal oscillator block also provides a stable reference source for the Fail-Safe Clock Monitor (FSCM). This option constantly monitors the main clock source against a reference signal provided by the internal oscillator and enables the controller to switch to the internal oscillator, allowing for continued low-speed operation or a safe application shutdown. EASY MIGRATION Regardless of the memory size, all devices share the same rich set of peripherals, allowing for a smooth migration path as applications grow and evolve. The consistent pinout scheme used throughout the entire family also aids in migrating from one device to the next larger, or even in jumping from 64-pin to 100-pin devices.
- Extreme Low-Power Features:
- Multiple Power Management Options for Extreme Power Reduction:
- VBAT allows the device to transition to a back-up battery for the lowest power consumption with RTCC
- Deep Sleep allows near total power-down, with the ability to wake-up on external triggers
- Sleep and Idle modes selectively shut down peripherals and/or core for substantial power reduction and fast wake-up
- Doze mode allows CPU to run at a lower clock speed than peripherals
- Alternate Clock modes Allow On-the-Fly Switching to a Lower Clock Speed for Selective Power Reduction
- Extreme Low-Power Current Consumption for Deep Sleep:
- WDT: 270 nA @ 3.3V typical
- RTCC: 400 nA @ 32 kHz, 3.3V typical
- Deep Sleep current, 40 na, 3.3V typical
- Peripheral Features:
- LCD Display Controller:
- Up to 60 segments by 8 commons
- Internal charge pump and low-power, internal resistor biasing
- Operation in Sleep mode
- Up to Five External Interrupt Sources
- Peripheral Pin Select (PPS): Allows Independent I/O Mapping of Many Peripherals
- Five 16-Bit Timers/Counters with Prescaler:
- Can be paired as 32-bit timers/counters
- Six-Channel DMA supports All Peripheral modules
- Minimizes CPU overhead and increases data throughput
- Seven Input Capture modules, each with a Dedicated 16-Bit Timer
- Seven Output Compare/PWM modules, each with a Dedicated 16-Bit Timer
- Enhanced Parallel Master/Slave Port (EPMP/EPSP)
- Hardware Real-Time Clock/Calendar (RTCC):
- Runs in Deep Sleep and VBAT modes
- 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
- Four UART modules:
- Support RS-485, RS-232 and LIN/J2602
- On-chip hardware encoder/decoder for IrDA®
- Auto-wake-up on Auto-Baud Detect
- 4-level deep FIFO buffer
- Programmable 32-bit Cyclic Redundancy Check (CRC) Generator
- Digital Signal Modulator Providers On-Chip FSK and PSK Modulation for a Digital Signal Stream
- Configurable Open-Drain Outputs on Digital I/O Pins
- High-Current Sink/Source (18 mA/18 mA) on All I/O Pins
- Analog Features:
- 10/12-Bit, 24-Channel Analog-to-Digital (A/D) Converter:
- Conversion rate of 500 ksps (10-bit), 200 ksps (12-bit)
- Conversion available during Sleep and Idle
- Three Rail-to-Rail Enhanced Analog Comparators with Programmable Input/Output Configuration
- On-Chip Programmable Voltage Reference
- Charge Time Measurement Unit (CTMU):
- Used for capacitive touch sensing, up to 24 channels
- Time measurement down to 1 ns resolution
- CTMU temperature sensing
- High-Performance CPU:
- Modified Harvard Architecture
- Up to 16 MIPS Operation @ 32 MHz
- 8 MHz Internal Oscillator:
- 4x PLL option
- Multiple clock divide options
- Fast start-up
