PIC24EP512MC202T-I/SO - 16-bit 70MIPS 512KB Flash MCU | Microchip
MPN： PIC24EP512MC202T-I/SO ✓ 啟用中PIC24EP512MC202T-I/SO 概覽
What is a PIC24EP microcontroller? The PIC24EP family is Microchip's high-performance 16-bit DSC (Digital Signal Controller) architecture positioned between 8-bit PIC16/PIC18 MCUs and 32-bit PIC32 devices. Within the broader taxonomy, a DSC combines a microcontroller with hardware DSP capability, optimized for real-time control loops in motor drives, power conversion, and audio processing. The 'EP' suffix denotes the enhanced peripheral set, and the 'MC' family specifically targets motor control with hardware PWM, QEI, and on-chip op-amps that eliminate the need for external analog front-ends.
Key features of this device include 512 KB (170K x 24) Flash, 48 KB RAM, 70 MIPS at 3.3V operation, 2 op-amps integrated, multiple UART/SPI/I2C interfaces, 12-bit ADC at 500 ksps, and an industrial operating temperature range of -40C to +85C. The SOIC-28 wide-body footprint provides thermal and routing headroom for higher-power motor-drive boards compared to QFN packages, making it well-suited for industrial motor-control PCBs.
Typical applications include BLDC/PMSM motor drives, field-oriented control (FOC) of permanent magnet motors, sensorless motor control using back-EMF zero-crossing, industrial servo drives, and consumer appliance motor control such as washing machines and HVAC blowers. The integrated op-amps directly interface with low-side current shunts, removing two external amplifiers from the BOM and shrinking PCB area.
When designing with this MCU, allocate a 3.3V LDO rail with bulk decoupling near the VDDCORE pin, route the analog AGND/AVSS separately from digital GND, and place the QEI traces as a matched-length differential pair. The MCPWM outputs should feed gate drivers via short traces to minimize dead-time skew, and unused op-amp inputs must be tied to mid-rail to prevent oscillation.
This page synthesizes distributor pricing, tape-and-reel drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers select the right variant for cost-sensitive BLDC applications versus AEC-Q100 automotive projects.
直接替換替代品，適用於 PIC24EP512MC202T-I/SO — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC24EP512MC202T-I/SO （相同外形與佔位） — 差異在於 Package, ADC, Core Architecture, Motor Control PWM (MCPWM), On-chip Op-Amps.
PIC24EP512MC202T-E/SO
✅ 直接替換聯絡詢價
查看資料表 →PIC24EP512MC202-I/SO
✅ 直接替換📋 參考替代品（不在目錄中）
PIC24EP256MC202-I/SO
✅ 直接替換聯絡詢價
查看資料表 →PIC24EP128MC202T-I/SO
✅ 直接替換聯絡詢價
查看資料表 →PIC24EP512MC202T-I/SO 最大額定值與電氣特性
| Architecture | 16-bit PIC24E DSC |
| CPU Performance | 70 MIPS |
| Program Memory (Flash) | 512 KB (170K x 24) |
| RAM | 48 KB |
| Operating Voltage (VDD) | 3.0 V to 3.6 V |
| 工作溫度 | -40C to +85C (Industrial) |
| 封裝 | 28-pin SOIC (wide-body, SO) |
| 安裝類型 | Surface Mount |
| Packaging | Tape & Reel (T suffix) |
| Integrated Op-Amps | 2 (internal) |
| Motor Control PWM (MCPWM) | Yes (high-speed, complementary outputs) |
| Quadrature Encoder Interface (QEI) | Yes |
| AEC-Q100 | Not qualified (Industrial temperature range) |
| RoHS 狀態 | Compliant |
PIC24EP512MC202T-I/SO 腳位配置
| 腳位 1 | MCLR — Master Clear (reset) input, drive low to reset |
| 腳位 2 | OSC1/CLKI — Oscillator input or external clock input |
| 腳位 3 | OSC2/CLKO — Oscillator output or clock output |
| 腳位 4 | PGED1/RP0 — Programming data / remappable peripheral pin 0 |
| 腳位 5 | PGEC1/RP1 — Programming clock / remappable peripheral pin 1 |
| 腳位 6 | RP2 — Remappable peripheral pin 2 |
| 腳位 7 | RP3 — Remappable peripheral pin 3 |
| 腳位 8 | VSS — Digital ground reference |
| 腳位 9 | RP4 — Remappable peripheral pin 4 |
| 腳位 10 | RP5 — Remappable peripheral pin 5 |
| 腳位 11 | RP6 — Remappable peripheral pin 6 |
| 腳位 12 | RP7 — Remappable peripheral pin 7 |
| 腳位 13 | VDD — Digital supply voltage (3.0-3.6V) |
| 腳位 14 | RP8/PWM1H — Remappable pin / PWM output 1 high-side |
| 腳位 15 | RP9/PWM1L — Remappable pin / PWM output 1 low-side |
| 腳位 16 | RP10/PWM2H — Remappable pin / PWM output 2 high-side |
| 腳位 17 | RP11/PWM2L — Remappable pin / PWM output 2 low-side |
| 腳位 18 | RP12/PWM3H — Remappable pin / PWM output 3 high-side |
| 腳位 19 | AVSS — Analog ground reference |
| 腳位 20 | AVDD — Analog supply voltage (3.0-3.6V) |
| 腳位 21 | AN0/CMP1A — Analog input 0 / comparator 1 input A |
| 腳位 22 | AN1/CMP1B — Analog input 1 / comparator 1 input B |
| 腳位 23 | AN2/OPA1OUT — Analog input 2 / op-amp 1 output |
| 腳位 24 | AN3/OPA2OUT — Analog input 3 / op-amp 2 output |
| 腳位 25 | RP13/PWM3L — Remappable pin / PWM output 3 low-side |
| 腳位 26 | RP14 — Remappable peripheral pin 14 |
| 腳位 27 | RP15 — Remappable peripheral pin 15 |
| 腳位 28 | VDDCORE — Core voltage regulator output (decouple externally) |
典型應用
PIC24EP512MC202T-I/SO 適用於 6 應用s: BLDC / PMSM Motor Control, Industrial Servo Drives, Consumer Appliance Motor Control, Sensorless Motor Control with Back-EMF, Power Conversion and Digital Power, Industrial PWM Fan and Pump Control.
BLDC / PMSM Motor Control
The PIC24EP512MC202T-I/SO is purpose-built for brushless DC and permanent-magnet synchronous motor control. Its integrated MCPWM module delivers complementary PWM outputs with programmable dead-time, and the two on-chip op-amps amplify low-side current shunt signals directly - eliminating the external analog front-end. At 70 MIPS the PIC24E core sustains field-oriented control (FOC) at 20 kHz switching with single-cycle MAC instructions per Microchip AN1292 reference designs, while 512 KB Flash accommodates the full FOC library plus sensorless back-EMF observer. Pair this MCU with gate drivers like the Microchip MCP8026 or TI DRV8320 for a complete three-phase inverter.
推薦
Industrial Servo Drives
For industrial servo drive applications the PIC24EP512MC202T-I/SO delivers the QEI peripheral for precise quadrature encoder feedback (typically 10,000+ counts/rev) and the 70 MIPS throughput for high-bandwidth torque-loop closure. The 48 KB RAM enables 4 kHz position-velocity-current cascade loops with margin for parameter adaptation. The wide-body SOIC-28 package simplifies PCB prototyping for industrial servo boards that often use through-hole or hand-assembled builds. Industrial servo applications also benefit from the -40C to +85C operating range specified by the I-suffix, with the E-suffix variant (PIC24EP512MC202T-E/SO) offering extended 125C operation.
推薦
Consumer Appliance Motor Control
The PIC24EP512MC202T-I/SO is widely deployed in washing-machine drum motors, refrigerator compressors, dishwasher pumps, and HVAC blower fans. The integrated op-amps interface directly with low-side shunt resistors in 1-shunt or 3-shunt FOC topologies, cutting BOM cost by removing two external amplifiers. The 512 KB Flash holds manufacturer-specific wash cycles plus Modbus/USB diagnostic interfaces, while the 70 MIPS keeps acoustic noise low via smooth sinusoidal commutation. Per the Microchip PIC24EP product page, this family enables energy-efficient, quieter, longer-life motor operation with extended speed range.
推薦
Sensorless Motor Control with Back-EMF
For sensorless BLDC motor control the PIC24EP512MC202T-I/SO's high-speed ADC and 70 MIPS DSP throughput support back-EMF zero-cross detection and BEMF observer algorithms. The 48 KB RAM fits sliding-window BEMF averaging buffers and observer state variables without external memory. The two integrated op-amps amplify BEMF voltage dividers through comparator-mode ADC channels, enabling sensorless startup algorithms per Microchip AN1083 reference designs. Industrial -40C to +85C operation handles outdoor HVAC compressor installations where ambient temperatures swing widely.
推薦
Power Conversion and Digital Power
Beyond motor control, the PIC24EP512MC202T-I/SO suits digital power conversion applications such as solar micro-inverters, telecom rectifiers, and uninterruptible power supplies. The 70 MIPS DSP engine runs average-current-mode control loops at 100+ kHz, the MCPWM provides high-resolution duty-cycle control, and the 12-bit ADC samples current/voltage with sub-microsecond conversion times. The 512 KB Flash supports multi-mode MPPT, grid-synchronization state machines, and Modbus/CAN communication stacks for grid-tied solar inverters.
推薦
Industrial PWM Fan and Pump Control
The PIC24EP512MC202T-I/SO drives industrial variable-frequency fan and pump controllers with closed-loop PID and low-cost current sensing. The two integrated op-amps amplify single-shunt or dual-shunt current signals directly, while the MCPWM provides 6 complementary outputs with programmable dead-time. The wide SOIC-28 package eases rework on industrial fan-controller PCBs that often need hand-assembly or field replacement. Energy savings of 30-50% versus fixed-speed fans are typical per the Microchip motor-control product page.
推薦
推薦產品摘要
工程參考資料，適用於 PIC24EP512MC202T-I/SO — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC24EP512MC202T-E/SO | PIC24EP512MC202-I/SO | PIC24EP256MC202-I/SO | PIC24EP128MC202T-I/SO |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Package | 28-pin SOIC (SO) | 28-pin SOIC (SO) - same | 28-pin SOIC (SO) - same | 28-pin SOIC (SO) - same | 28-pin SOIC (SO) - same |
| CPU Performance | 70 MIPS | 60 MIPS | 70 MIPS - same | 70 MIPS - same | 70 MIPS - same |
| Flash Memory | 512 KB | 512 KB - same | 512 KB - same | 256 KB (-50%) | 128 KB (-75%) |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +125C (Extended, AEC-Q100) | -40C to +85C - same | -40C to +85C - same | -40C to +85C - same |
| AEC-Q100 | Not qualified | Qualified (automotive grade) | Not qualified | Not qualified | Not qualified |
| Integrated Op-Amps | 2 | 2 - same | 2 - same | 2 - same | 2 - same |
| MCPWM / QEI | Yes / Yes | Yes / Yes - same | Yes / Yes - same | Yes / Yes - same | Yes / Yes - same |
主要差異化特點
- Highest Flash density in the 24EP SOIC-28 family (對比PIC24EP128MC202T-I/SO)
- Industrial 70 MIPS vs extended 60 MIPS (對比PIC24EP512MC202T-E/SO)
- Integrated dual op-amps eliminate external analog front-end (對比PIC32MX + external op-amp)
- Wide-body SOIC-28 simplifies hand-prototyping (對比PIC24EP512MC202-I/MM (QFN-28))
設計說明
The PIC24EP512MC202T-I/SO requires a 3.3V rail at 3.0-3.6V with separate VDD (digital) and AVDD (analog) supplies, both decoupled locally with 100nF + 10uF bulk capacitors. Tie VSS and AVSS at a single ground star near the MCU. The VDDCORE pin (28) is the internal LDO output and MUST be decoupled with 10uF + 100nF; do not drive external loads from VDDCORE. Place the regulator bypass capacitors within 3mm of their respective pins. At 70 MIPS the core current spikes can reach 70 mA, so use a low-ESR LDO like the Microchip MCP1700.
Route the analog AGND/AVSS plane separately from digital GND and join them only at the MCU's AVSS pin (pin 19) to avoid digital switching noise coupling into the ADC and op-amp inputs. Place op-amp feedback components within 5mm of the OPAxOUT pins (23/24) and keep current-shunt traces as a Kelvin connection from the shunt resistor directly to AN0/AN1 (pins 21/22). The PWM outputs (pins 14-18, 25) should fan out as short, matched-length traces to the gate driver, with dead-time skew kept under 10 ns.
Estimated: At 70 MIPS CPU load with 3.3V supply, core current is approximately 70 mA (per PIC24E datasheet typical spec). Power dissipation in the SOIC-28 package is approximately 230 mW, with theta_JA around 60 C/W for SOIC-28 wide-body. Junction temperature rise is estimated at 14C above ambient - well within the 85C industrial spec. For sealed motor enclosures above 60C ambient, derate to 60 MIPS or switch to the E-suffix PIC24EP512MC202T-E/SO rated to +125C.
Common mistakes: (1) Forgetting to configure the MCLR pin as input-only or fail-safe on reset - leaving it floating causes spurious resets. (2) Using the internal op-amps without enabling them in firmware first - they default OFF. (3) Driving VDDCORE from an external regulator instead of using the internal LDO output - the on-chip regulator needs its own decoupling per datasheet. (4) Exceeding 5 mA source/sink on any I/O pin (per datasheet absolute maximum) - buffer the outputs when driving heavy gate-driver inputs.
合規資訊
RoHS and REACH compliant per Microchip product page. Industrial temperature grade -40C to +85C; not AEC-Q100 qualified - choose PIC24EP512MC202T-E/SO for automotive.
