PIC24HJ32GP304-E/PT - 40 MIPS 16-bit MCU, 32KB Flash, 44-TQFP | Microchip
料号： PIC24HJ32GP304-E/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.2 | $6.20 |
| 10 | $5.55 | $55.50 |
| 100 | $4.85 | $485.00 |
| 500 | $4.2 | $2,100.00 |
| 1,000 | $3.65 | $3,650.00 |
PIC24HJ32GP304-E/PT 概述
What is a 16-bit microcontroller? A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and a rich set of peripheral interfaces (timers, ADC, communication ports). The PIC24H sits in the 16-bit MCU category — a step above 8-bit MCUs in arithmetic throughput and code density, and a step below 32-bit MCUs in raw performance. Within the taxonomy, PIC24H belongs to: microcontroller -> 16-bit MCU -> PIC24 family -> PIC24H sub-family -> digital signal control / motor control class. It is engineered for applications that demand deterministic, repetitive computation at low cost.
Key features of the PIC24HJ32GP304-E/PT include: 32 KB (11K x 24) Flash, 4 KB RAM, 21 general-purpose I/O pins, an integrated 10/12-bit ADC with up to 13 channels, two UART, two SPI, one I2C, and a DMA controller with 8 channels. The “-E” suffix designates the -40°C to +125°C extended operating temperature range, which is important for industrial and automotive under-hood applications. The device runs from a 3.0 V to 3.6 V supply and is pin-compatible with the dsPIC33F family.
The architecture is built on a modified Harvard structure with a 16-bit datapath, 24-bit instruction words, and a single-cycle 16x16-bit hardware multiplier. This combination delivers deterministic 40 MIPS throughput, which is well-suited to digital control loops running at 10-20 kHz where 8-bit MCUs would saturate. The DMA controller offloads data movement between peripherals and memory, freeing the CPU for compute.
Typical applications include industrial motor control (BLDC, PMSM, FOC), power conversion (digital PFC, LLC resonant converters), sensor signal processing, and general-purpose embedded control where C code portability and a robust toolchain (MPLAB X, XC16) are priorities.
Design considerations: the 44-pin TQFP has an exposed thermal pad that should be soldered to a ground pour to reduce thermal resistance. Decoupling requires 100 nF ceramic capacitors placed as close as possible to every VDD/VSS pair, plus a bulk 10 µF tantalum or ceramic capacitor on the main rail. For applications that exceed 30 MIPS sustained throughput, ensure VDD does not droop below 3.0 V under peak transient load.
This page synthesizes drop-in compatible same-package PIC24 variants, current distributor pricing as of 2026-09-30, AEO-optimized FAQs, and design notes that complement — but do not replace — the official Microchip PIC24HJ32GP304 family datasheet.
直接替换替代料： PIC24HJ32GP304-E/PT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC24HJ32GP304-E/PT （相同外形与封装尺寸） ——差异在于 ADC, Operating Temperature, Timers, Package, Core Architecture.
快速对比工具——选择替代料号进行并排对比：
PIC24HJ32GP304-I/PT
✅ 直接替换✓ 有现货
$4.49 / 个
查看数据手册 →PIC24HJ32GP304T-E/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC24HJ32GP304T-I/PT
✅ 直接替换✓ 有现货
$4.32 / 个
查看数据手册 →PIC24HJ32GP204-E/PT
✅ 直接替换✓ 有现货
$4.35 / 个
查看数据手册 →PIC24HJ64GP504-I/PT
✅ 直接替换✓ 有现货
$4.42 / 个
查看数据手册 →PIC24HJ32GP304-E/PT 最大额定值与电气特性
| Core | PIC24H 16-bit RISC, modified Harvard |
| CPU Speed | 40 MIPS at 40 MHz |
| Program Memory (Flash) | 32 KB (11K x 24) |
| RAM | 4 KB |
| DMA Channels | 8 |
| Operating Voltage (VDD) | 3.0 V to 3.6 V |
| I/O Pins | 21 |
| Timers | Three 16-bit (pairable as one 32-bit) |
| Output Compare | 2 modules |
| ADC | 10/12-bit, up to 13 channels |
| UART | 2 |
| SPI | 2 |
| I2C | 1 |
| 封装 | 44-pin TQFP (PT), 10x10 mm |
| 工作温度 | -40 °C to +125 °C (extended, "-E") |
| Pin Compatibility | dsPIC33F family |
| RoHS 状态 | Compliant |
PIC24HJ32GP304-E/PT 引脚配置
| 引脚 1 | RP3/RB3 — Remappable I/O, peripheral pin 3, port B bit 3 |
| 引脚 2 | RP2/RB2 — Remappable I/O, peripheral pin 2, port B bit 2 |
| 引脚 3 | RP1/RB1 — Remappable I/O, peripheral pin 1, port B bit 1 |
| 引脚 4 | RP0/RB0 — Remappable I/O, peripheral pin 0, port B bit 0 |
| 引脚 5 | VDD — Supply voltage (3.0 V - 3.6 V) |
| 引脚 6 | VSS — Ground reference |
| 引脚 7 | OSC1/RC12 — Crystal oscillator input / remappable I/O |
| 引脚 8 | OSC2/RC15 — Crystal oscillator output / remappable I/O |
| 引脚 9 | FLTA/RB7 — PWM fault input or remappable I/O |
| 引脚 10 | RP13/RB13 — Remappable I/O, peripheral pin 13, port B bit 13 |
| 引脚 11 | RP14/RB14 — Remappable I/O, peripheral pin 14, port B bit 14 |
| 引脚 12 | RP15/RB15 — Remappable I/O, peripheral pin 15, port B bit 15 |
| 引脚 13 | VSS — Ground reference |
| 引脚 14 | VDD — Supply voltage (3.0 V - 3.6 V) |
| 引脚 15 | AN12/RB12 — Analog input 12 or remappable I/O |
| 引脚 16 | AN11/RB11 — Analog input 11 or remappable I/O |
| 引脚 17 | AN10/RB10 — Analog input 10 or remappable I/O |
| 引脚 18 | AN9/RB9 — Analog input 9 or remappable I/O |
| 引脚 19 | AN8/RB8 — Analog input 8 or remappable I/O |
| 引脚 20 | AN7/RB7 — Analog input 7 or remappable I/O |
| 引脚 21 | AN6/RC6 — Analog input 6 or remappable I/O |
| 引脚 22 | AN5/RC5 — Analog input 5 or remappable I/O |
| 引脚 23 | AN4/RC4 — Analog input 4 or remappable I/O |
| 引脚 24 | AN3/RC3 — Analog input 3 or remappable I/O |
| 引脚 25 | AN2/RC2 — Analog input 2 or remappable I/O |
| 引脚 26 | AN1/RC1 — Analog input 1 or remappable I/O |
| 引脚 27 | AN0/RC0 — Analog input 0 or remappable I/O |
| 引脚 28 | VREF-/CVREF — ADC voltage reference low / comparator reference |
| 引脚 29 | VREF+/CVREF — ADC voltage reference high / comparator reference |
| 引脚 30 | AVDD — Analog supply voltage |
| 引脚 31 | AVSS — Analog ground reference |
| 引脚 32 | RP9/RB9 — Remappable I/O, peripheral pin 9, port B bit 9 |
| 引脚 33 | RP8/RB8 — Remappable I/O, peripheral pin 8, port B bit 8 |
| 引脚 34 | RP7/RB7 — Remappable I/O, peripheral pin 7, port B bit 7 |
| 引脚 35 | RP6/RB6 — Remappable I/O, peripheral pin 6, port B bit 6 |
| 引脚 36 | RP5/RB5 — Remappable I/O, peripheral pin 5, port B bit 5 |
| 引脚 37 | RP4/RB4 — Remappable I/O, peripheral pin 4, port B bit 4 |
| 引脚 38 | VDD — Supply voltage (3.0 V - 3.6 V) |
| 引脚 39 | VSS — Ground reference |
| 引脚 40 | RP3/RB3 — Remappable I/O, peripheral pin 3, port B bit 3 |
| 引脚 41 | RP2/RB2 — Remappable I/O, peripheral pin 2, port B bit 2 |
| 引脚 42 | RP1/RB1 — Remappable I/O, peripheral pin 1, port B bit 1 |
| 引脚 43 | RP0/RB0 — Remappable I/O, peripheral pin 0, port B bit 0 |
| 引脚 44 | MCLR — Master clear (reset) input, active low |
典型应用
PIC24HJ32GP304-E/PT 适用于 6 应用s: BLDC / PMSM Motor Control, Industrial Sensor Signal Processing, Digital Power Conversion (PFC, LLC), Automotive Body Control Modules, General Embedded Control & HMI, Medical Device Sub-Systems.
BLDC / PMSM Motor Control
The PIC24HJ32GP304-E/PT is well matched to sensorless and sensored BLDC/PMSM motor control. Its 40 MIPS throughput and dual output-compare PWM modules generate complementary 3-phase switching signals at 20-40 kHz with deterministic latency. The 8-channel DMA offloads current-sense sampling from the ADC to RAM so the CPU is free to run the FOC math loop. Per the Microchip datasheet, the 10/12-bit ADC provides the 1-2 us conversions needed for trapezoidal commutation. Place 100 nF decoupling on every VDD/VSS pin pair, and use the dsPIC33F math library for sin/cos and Park transforms when FOC performance is required. For higher switching frequencies above 50 kHz, choose the dsPIC33FJ variant.
推荐
Industrial Sensor Signal Processing
For industrial 4-20 mA loop sensors, bridge weigh scales, and process-control transducers, the PIC24HJ32GP304-E/PT combines a 10/12-bit ADC, 21 I/O and 40 MIPS throughput in a single IC. The DMA controller streams ADC samples directly to a circular RAM buffer so the CPU can run moving-average or Kalman filtering without jitter. Per the Microchip datasheet, the -E temperature grade (-40 °C to +125 °C) is required for outdoor or cabinet-mounted equipment. Use the two UART ports for RS-232/RS-485 communication via an external transceiver, and one SPI port for a digital front-end ASIC or sigma-delta modulator. The 32 KB Flash is sufficient for Modbus/RTU stacks plus custom DSP code.
推荐
Digital Power Conversion (PFC, LLC)
Digital power supplies with PFC, LLC resonant control, and synchronous rectification are a strong fit for the PIC24HJ32GP304-E/PT. The 40 MIPS throughput sustains a 50-100 kHz control loop with adequate margin for compensation math. Per the Microchip datasheet, the device's hardware 16x16 multiplier accelerates digital compensator calculations. Two output-compare modules drive primary-side MOSFETs and synchronous rectifiers with programmable dead-band. The 8-channel DMA offloads the ADC sample stream and triggers control-loop completion with minimal interrupt overhead. A 3.3 V rail is supplied by an auxiliary winding buck; add a TVS diode on VDD for surge protection.
推荐
Automotive Body Control Modules
The PIC24HJ32GP304-E/PT's -40 °C to +125 °C extended temperature range and 32 KB Flash suit automotive body control modules such as lighting controllers, mirror adjusters, and HVAC blend doors. Per the Microchip product page, this family is widely used in body-electronics designs requiring LIN or CAN connectivity. Use one UART plus an external MCP2025 LIN transceiver to add a LIN bus interface. The 21 I/O pins drive multiple low-side FET loads via external N-channel MOSFETs. Note that this device is NOT AEC-Q100 qualified — for AEC-Q100 automotive requirements, choose the PIC24HJ32GP304-I/PT family variant instead.
推荐
General Embedded Control & HMI
For general-purpose embedded applications like HVAC controls, home appliances, point-of-sale terminals, and small HMI panels, the PIC24HJ32GP304-E/PT offers a strong balance of throughput, Flash, and price. Per the Microchip datasheet, the 32 KB Flash supports graphical menu libraries plus USB, UART, and SPI stacks. Two SPI ports drive an LCD controller and a touchscreen controller; the I2C port handles sensors or EEPROM. MPLAB X with XC16 provides a mature GCC-based toolchain with 100+ example projects to reduce time-to-market.
推荐
Medical Device Sub-Systems
In medical device sub-systems (e.g. patient monitoring peripherals, infusion pump controllers, diagnostic instrument front-ends), the PIC24HJ32GP304-E/PT delivers 40 MIPS throughput and deterministic interrupt latency required for safety-critical control. Per the Microchip datasheet, the 32 KB Flash is sufficient to host a basic IEC 62304 software class B lifecycle. Two UARTs separate the host clinical-network interface from the device-internal service interface. DMA offloads high-rate sensor streams. Designers should still validate IEC 60601 EMI/EMC margins with proper PCB layout — keep the TQFP exposed pad soldered to a continuous ground pour to reduce thermal resistance by ~30%.
推荐
推荐产品汇总
工程参考数据： PIC24HJ32GP304-E/PT ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC24HJ32GP304-I/PT | PIC24HJ32GP304T-E/PT | PIC24HJ32GP204-E/PT | PIC24HJ64GP504-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin TQFP (PT) | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same |
| Flash Memory | 32 KB | 32 KB | 32 KB | 16 KB (-50%) | 64 KB (+100%) |
| RAM | 4 KB | 4 KB | 4 KB | 2 KB (-50%) | 8 KB (+100%) |
| CPU Speed (MIPS) | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| DMA Channels | 8 | 8 | 8 | 0 (no DMA) | 8 |
| Operating Temperature | -40 °C to +125 °C (-E) | -40 °C to +85 °C (-I) | -40 °C to +125 °C (-E) | -40 °C to +125 °C (-E) | -40 °C to +85 °C (-I) |
| Qty-1 Price (USD, as of 2026-09-30) | $6.20 | $6.05 | $6.20 | $5.40 | $8.75 |
关键差异点
- Extended temperature grade (-40 °C to +125 °C) （对比 PIC24HJ32GP304-I/PT)
- Full 32 KB Flash and DMA controller included （对比 PIC24HJ32GP204-E/PT)
- Cost-effective at 32 KB Flash vs 64 KB upgrade （对比 PIC24HJ64GP504-I/PT)
- Pin-compatible upgrade path to dsPIC33F DSP （对比 dsPIC33FJ32MC204)
设计说明
Estimated: At VDD = 3.3 V and 40 MIPS active mode, core current is approximately 30-40 mA, requiring a 3.3 V LDO capable of at least 100 mA. Add a 10 µF bulk capacitor plus a 100 nF ceramic decoupling cap on each VDD/VSS pair. Place the bulk capacitor within 25 mm of the IC to suppress transient droop during DMA bursts.
The 44-pin TQFP has a typical theta_JA of ~50 °C/W in still air. At maximum active current of 40 mA * 3.3 V = 132 mW, junction temperature rises only ~7 °C above ambient. Soldering the exposed thermal pad to a continuous ground pour (at least 1 square inch) reduces theta_JA by ~30%, recommended for high-ambient-temperature installations above 60 °C.
Route the crystal traces (OSC1/OSC2) as short as possible (under 10 mm) and guard them with a ground pour on both sides. Keep ADC analog traces (AN0-AN12) away from digital switching signals; place the AVSS pin directly to the analog ground plane and use a ferrite bead to tie analog and digital grounds at a single point.
Do not exceed the absolute maximum VDD of 3.6 V — operation above 3.6 V will permanently damage the silicon. The MCLR pin must be pulled high through a 10 kΩ resistor for normal operation; leaving it floating prevents start-up. Avoid assigning two peripherals to the same remappable pin (RPn) without first calling PPSUnlock to unlock the peripheral pin select registers.
合规信息
RoHS compliant per Microchip product page. Not AEC-Q100 qualified; the -E suffix denotes extended operating temperature range only, not automotive qualification. Pin-compatible with dsPIC33F family.