DSPIC33EP256GM304-H/PT - 70 MIPS DSC, 256KB Flash, TQFP-44 | Microchip
Артикул: DSPIC33EP256GM304-H/PT ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $6.2 | $6,20 |
| 10 | $5.55 | $55,50 |
| 100 | $4.9 | $490,00 |
| 500 | $4.45 | $2.225,00 |
| 1.000 | $4.05 | $4.050,00 |
DSPIC33EP256GM304-H/PT Обзор
A digital signal controller combines the computational power of a DSP (MAC, barrel shifter, DSP instruction set) with the ease of use of a microcontroller, positioning it above a general-purpose MCU in the control hierarchy: microcontroller -> DSC -> dedicated DSP. The dsPIC33E family is Microchip's flagship 16-bit DSC platform for precision motor control, digital power conversion and sensing applications.
Key features include the dsPIC33E core operating up to 70 MIPS, 256 KB (85.5K x 24) of self-programming Flash with ECC, up to 12 MCPWM channels, 8 input capture and 8 output compare channels, 2 quadrature encoder interfaces (QEI), and 4 integrated operational amplifiers for motor current sensing. Peripherals include I2C, SPI, UART/IrDA, CTMU (charge time measurement unit) and PTG (peripheral trigger generator).
The GM304 variant with on-chip op amps eliminates external amplification for shunt-current measurement in motor drives, reducing BOM cost and board area. The 44-pin TQFP offers 35 I/O pins, sufficient for BLDC/PMSM drives with encoder feedback, and suits surface-mount reflow assembly on standard PCB processes.
Typical applications include sensorless and sensored FOC motor control, digital SMPS/LED drivers, solar inverters, and industrial sensing nodes using the CTMU for capacitive or analog measurement.
Design considerations: all VDD/VSS and independent AVDD/AVSS pins must be connected per the manufacturer datasheet; the internal core regulator requires a VCAP capacitor pin. Debug/programming uses any matched PGECx/PGEDx pair via ICSP.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Аналоги без доработки для DSPIC33EP256GM304-H/PT — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с DSPIC33EP256GM304-H/PT (тот же форм-фактор и посадочное место) — отличается по Package, Operating Temperature, Packaging, Supply Voltage Range, Core Architecture.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
DSPIC33EP256GM304-I/PT
✅ Прямая замена✓ В наличии
$2.76 / шт.
Открыть даташит →DSPIC33EP256GM304-E/PT
✅ Прямая замена✓ В наличии
$5.39 / шт.
Открыть даташит →DSPIC33EP256GM304T-I/PT
✅ Прямая замена✓ В наличии
$4.1 / шт.
Открыть даташит →DSPIC33EP128GM304T-I/PT
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$3.95 / шт.
Открыть даташит →DSPIC33EP512GM304-I/PT
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$7.05 / шт.
Открыть даташит →DSPIC33EP64GM304-I/PT
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
DSPIC33EP256MC504-I/PT
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$4.6 / шт.
Открыть даташит →DSPIC33EP256GM304-H/PT Максимальные параметры и электрические характеристики
| Core Architecture | 16-bit dsPIC33E DSC (Harvard) |
| Max CPU Speed | 70 MIPS |
| Program Memory (Flash) | 256 KB (85.5K x 24) |
| RAM | 32 KB |
| Supply Voltage Range | 1.8 V minimum logic; 3.0 V to 3.6 V operation, nominal 3.3 V |
| I/O Pins | 35 |
| Корпус | 44-TQFP (10x10 mm), 0.8 mm pitch |
| Тип монтажа | Surface Mount |
| MCPWM Channels | 12 |
| Input Capture / Output Compare | 8 / 8 |
| Quadrature Encoder Interfaces | 2 |
| On-chip Op Amps | 4 |
| Communication Interfaces | I2C, SPI, UART/IrDA, USART |
| CTMU | Yes (Charge Time Measurement Unit) |
| PTG | Yes (Peripheral Trigger Generator) |
| Max Current Draw | 60 mA (per Microchip USA product page) |
| Programming/Debug | ICSP via PGECx/PGEDx pairs |
Конфигурация выводов DSPIC33EP256GM304-H/PT
| Контакт 1 | MCLR — Master clear reset / programming voltage input |
| Контакт 2 | AN0/VREF+/CN3/RB0 — Analog input 0 / ADC positive reference / change notification / port B |
| Контакт 3 | AN1/VREF-/CN2/RB1 — Analog input 1 / ADC negative reference / port B |
| Контакт 4 | AN2/SS1/CN4/RB2 — Analog input 2 / SPI slave select 1 / port B |
| Контакт 5 | AN3/INDX/CN5/RB3 — Analog input 3 / QEI index / port B |
| Контакт 6 | AN4/QEA/IC7/CN6/RB4 — Analog input 4 / QEI phase A / input capture 7 / port B |
| Контакт 7 | AN5/QEB/IC8/CN7/RB5 — Analog input 5 / QEI phase B / input capture 8 / port B |
| Контакт 8 | VSS — Ground reference |
| Контакт 9 | OSC1/CLKI/CN12/RA2 — Oscillator crystal input / external clock input |
| Контакт 10 | OSC2/CLKO/RC15 — Oscillator crystal output / clock output |
| Контакт 11 | VDD — Positive supply |
| Контакт 12 | RF2/U1RX/SDI1 — UART1 receive / SPI1 data in |
| Контакт 13 | RF3/U1TX/SDO1 — UART1 transmit / SPI1 data out |
| Контакт 14 | RG0/INT0 — External interrupt 0 |
| Контакт 15 | RD8 — General purpose I/O port D |
| Контакт 16 | RD9 — General purpose I/O port D |
| Контакт 17 | RD10 — General purpose I/O port D |
| Контакт 18 | RD11 — General purpose I/O port D |
| Контакт 19 | RG1 — General purpose I/O port G |
| Контакт 20 | RG8/SCL1 — I2C1 clock |
| Контакт 21 | RG7/SDA1 — I2C1 data |
| Контакт 22 | RG6 — General purpose I/O port G |
| Контакт 23 | VSS — Ground reference |
| Контакт 24 | VDD — Positive supply |
| Контакт 25 | RG9 — General purpose I/O port G |
| Контакт 26 | VCAP/VDDCORE — CPU core voltage regulator capacitor connection |
| Контакт 27 | AN6/OC1/RA3 — Analog input 6 / output compare 1 |
| Контакт 28 | AN7/OC2/RB6 — Analog input 7 / output compare 2 |
| Контакт 29 | AN8/OC3/RB7 — Analog input 8 / output compare 3 |
| Контакт 30 | AN9/OC4/RB8 — Analog input 9 / output compare 4 |
| Контакт 31 | AN10/OC5/RB9 — Analog input 10 / output compare 5 |
| Контакт 32 | AN11/OC6/RB10 — Analog input 11 / output compare 6 |
| Контакт 33 | VSS — Ground reference |
| Контакт 34 | AN12/OC7/RB11 — Analog input 12 / output compare 7 |
| Контакт 35 | AN13/OC8/RB12 — Analog input 13 / output compare 8 |
| Контакт 36 | AN14/CN1/RB13 — Analog input 14 / change notification / port B |
| Контакт 37 | AN15/CN0/RB14 — Analog input 15 / change notification / port B |
| Контакт 38 | AVDD — Analog positive supply (must be connected independently) |
| Контакт 39 | AVSS — Analog ground (must be connected independently) |
| Контакт 40 | VBUS/RB15 — Port B / VBUS sense function |
| Контакт 41 | RF4/IC1 — Input capture 1 |
| Контакт 42 | RF5/IC2 — Input capture 2 |
| Контакт 43 | RF0/U2TX — UART2 transmit |
| Контакт 44 | RF1/U2RX — UART2 receive |
Типичное применение
DSPIC33EP256GM304-H/PT подходит для 6 применениеs: FOC Motor Control (PMSM/BLDC), Digital Power Conversion (SMPS / Inverters), Industrial Sensing and Capacitive Measurement, Automotive-Grade Control Modules, Embedded Audio and Signal Processing, Robotics and Motion Control.
FOC Motor Control (PMSM/BLDC)
The DSPIC33EP256GM304-H/PT is purpose-built for field-oriented control of PMSM and BLDC motors. Its 70 MIPS DSP core executes single-cycle MAC operations for fast Clarke/Park transforms and PI current loops, while 12 MCPWM channels with dead-time insertion drive the three-phase inverter. The 4 integrated op amps amplify shunt currents for phase-current sampling without external amplifiers, and 2 QEI modules decode encoder feedback for sensored operation. Typical FOC loop rates of 10-20 kHz fit comfortably within the core budget. Placed at the center of the drive board with the PWM outputs routed to gate drivers, the device delivers a complete digital motor controller in one 44-TQFP footprint, reducing BOM count versus discrete op-amp front ends.
Рекомендуется
Digital Power Conversion (SMPS / Inverters)
Digital switched-mode power supplies and solar micro-inverters benefit from the GM304's high-speed PWM capability and DSP throughput. The 70 MIPS core supports average-current-mode control and MPPT algorithms, while the PTG (Peripheral Trigger Generator) automates ADC triggering synchronized to the PWM period with minimal CPU intervention. The 12 MCPWM channels allow multi-phase interleaved converters with phase-shifted control. Because the DSC adds no switching noise of its own and provides hardware dead-time control, it replaces analog PWM controllers while enabling adaptive, parameter-tunable control laws. The CTMU also supports precision timing measurements for resonant converters, making the device a single-chip digital power platform.
Рекомендуется
Industrial Sensing and Capacitive Measurement
The CTMU (Charge Time Measurement Unit) on the DSPIC33EP256GM304-H/PT enables precise time- and charge-based measurements for capacitive sensing, resistance and time-domain measurements in industrial nodes. Combined with 256 KB of Flash for protocol stacks and 32 KB RAM for buffering, the device serves as a smart sensor hub acquiring data via its I2C, SPI and UART/IrDA interfaces and pushing results over industrial links. The 4 op amps condition analog signals locally, and the 35 I/O lines interface limit switches and actuators. Its 3.3 V supply and -H temperature grade suit factory-floor environments where ambient temperatures rise above standard consumer limits, keeping sensing electronics stable across shifts and seasons.
Рекомендуется
Automotive-Grade Control Modules
Distributor data (Jotrin) classifies the DSPIC33EP256GM304-H/PT in an automotive-suitable flow, and the -H temperature grade supports the elevated ambient temperatures found in under-hood and near-engine modules. Typical uses include electric power steering assist logic, pump/fan control, and auxiliary actuator controllers, where the 12 MCPWM channels drive H-bridges and the QEI modules read position sensors. The 256 KB Flash accommodates diagnostics stacks and flash OTA-style field updates through self-programming. Designers should still verify the specific qualification level (e.g., AEC-Q100 grade) required by their program in the Microchip qualification documentation before releasing this MPN into automotive production drawings.
Рекомендуется
Embedded Audio and Signal Processing
With a 16-bit DSP engine offering single-cycle MAC and a barrel shifter, the GM304 executes FIR/IIR filtering, FFTs and audio effects at sample rates up to tens of kHz in small embedded products. The 256 KB Flash stores codec firmware and lookup tables, while the 32 KB RAM buffers audio frames. UART/IrDA, SPI and I2C interfaces connect external audio codecs and EEPROMs, and the 35 I/O pins handle user controls. Although it is not an audio-specific DSC, the dsPIC33E core delivers predictable real-time DSP behavior with microcontroller-style peripherals, making it attractive for compact voice, intercom and alert-sound products where a separate DSP would be overkill.
Рекомендуется
Robotics and Motion Control
Multi-axis robotic motion boards use the DSPIC33EP256GM304-H/PT to run per-axis control loops: the 2 QEI modules track two encoders simultaneously, the 8 input captures timestamp hall or index events, and the 12 MCPWM channels drive DC or stepper bridges. The 70 MIPS core closes position/velocity/current cascades with headroom for trajectory interpolation and CAN-style communication over UART/SPI bridges. The 3.3 V, 60 mA-typical supply eases integration into shared robot power rails, and the 10x10 mm 44-TQFP keeps the controller compact on distributed joint boards. Flash self-programming supports on-robot firmware updates without swapping the controller.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для DSPIC33EP256GM304-H/PT — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | DSPIC33EP256GM304-I/PT | DSPIC33EP256GM304-E/PT | DSPIC33EP128GM304T-I/PT | DSPIC33EP512GM304-I/PT |
|---|---|---|---|---|---|
| Package | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 256 KB (85.5K x 24) | 256 KB | 256 KB | 128 KB | 512 KB |
| RAM | 32 KB | 32 KB | 32 KB | 16 KB | 48 KB |
| Max CPU Speed | 70 MIPS | 70 MIPS | 60 MIPS (per DigiKey listing) | 70 MIPS | 70 MIPS |
| MCPWM / QEI / Op Amps | 12 / 2 / 4 | 12 / 2 / 4 | 12 / 2 / 4 | 12 / 2 / 4 | 12 / 2 / 4 |
| Temperature Grade | -H (high temperature) | -I: -40C to +85C | -E: extended range | -I: -40C to +85C | -I: -40C to +85C |
| Supply Voltage | 3.0 V to 3.6 V (nominal 3.3 V) | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
Ключевые отличия
- Four on-chip op amps eliminate external current-sense amplifiers (против DSPIC33EP256MC504-I/PT)
- High-temperature -H grade in a widely stocked footprint (против DSPIC33EP256GM304-I/PT)
- Complete motor-control peripheral set in 44 pins (против DSPIC33EP256GM304-E/PT)
Заметки по проектированию
Per datasheet DS70000689D, all VDD/VSS pairs must be connected, and AVDD/AVSS must be wired independently of the ADC reference source - never tie AVSS to a shared digital ground through long traces. Decouple each VDD pin with 100 nF ceramic placed within 2 mm of the pin, plus bulk 10 uF per rail. The VCAP/VDDCORE pin (pin 26) requires the datasheet-specified low-ESR capacitor for the internal core regulator; omitting it or using the wrong value is the most common cause of startup failure on dsPIC33EP designs.
The device offers multiple PGECx/PGEDx pairs for ICSP. You must use one pair as a matched set - e.g., PGEC2 for ICSPCLK with PGED2 for ICSPDAT; mixing pairs from different sets prevents programming. Route the chosen pair plus MCLR to a 5-pin header before layout sign-off, since in-circuit rework of TQFP-44 traces is impractical. When switching between -H, -I and -E grades in production, re-verify the configuration-word clock settings, as oscillator calibration and PLL limits should be confirmed against the specific grade's datasheet tables.
For motor-control use, keep the op-amp input traces (shunt sense) as short, matched differential pairs routed over a quiet ground, away from the 12 MCPWM switching lines. Star-ground the analog section around AVSS and place a small RC filter at the op-amp inputs to suppress switching ripple before ADC sampling triggered by the PTG/PWM sync. Estimated: with 3.3 V at 60 mA typical load, core-plus-IO dissipation is under 0.2 W, so the 44-TQFP needs no heatsinking - thermal design attention should go to the power stage, not the DSC.
Информация о соответствии
Compliance status not explicitly stated in the provided verified data. Jotrin describes the -H/PT as an automotive-classified part; verify AEC qualification level and RoHS/REACH declarations on the official Microchip product page before release.
