PIC24EP128GP202T-I/MM - 16-bit 70 MIPS 128KB Flash MCU | Microchip
MPN: PIC24EP128GP202T-I/MM ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.2 | $3.20 |
| 10 | $2.88 | $28.80 |
| 100 | $2.55 | $255.00 |
| 500 | $2.3 | $1,150.00 |
| 1,000 | $2.05 | $2,050.00 |
PIC24EP128GP202T-I/MM Overview
A 16-bit MCU is a microcontroller whose data path, registers, and ALU natively operate on 16-bit words, giving roughly an order-of-magnitude higher code density and arithmetic throughput than 8-bit cores at comparable clock rates. Within the broader taxonomy, the PIC24EP family sits above the PIC24F and PIC24H families, below the dsPIC33 DSC family, and is part of Microchip's PIC24 general-purpose 16-bit MCU line, which targets deterministic real-time control at low power. The 70 MIPS figure is derived from a 70 MHz maximum oscillator with a 2:1 instruction-cycle divider, so a single source line is executed per two clock cycles.
Key differentiating features of the PIC24EP128GP202T-I/MM include up to 70 MIPS CPU throughput, dual op-amp front-ends for in-package analog conditioning, a CTMU for capacitive touch and precise time-of-flight measurement, the PTG for offloading trigger patterns from the CPU, and a Peripheral Pin Select (PPS) remappable I/O scheme that simplifies PCB routing. The device also integrates a 16-bit Parallel Master Port (PMP) option on select pins, multiple UART/SPI/I2C modules, hardware DMA, and a 16-bit timer/capture/PWM engine. The "-I" industrial temperature grade spans -40C to +85C and the "-MM" suffix denotes the 28-pin QFN-S 6x6 mm package.
Architecture-wise, the PIC24EP core separates program and data buses (modified Harvard) and uses a 24-bit-wide instruction word, which is the reason Flash is sized at 43K x 24 rather than 128K x 8. The 70 MIPS throughput is achieved while keeping dynamic current low because peripheral trigger generation (PTG) and DMA remove many interrupt-driven CPU tasks that would otherwise consume MIPS budget.
Typical applications include industrial motor control, switch-mode power supplies (digital PFC), sensor signal conditioning with on-chip op-amps, capacitive touch user interfaces (CTMU), building automation, medical instrumentation front-ends, and general-purpose embedded control in white goods. The wide operating voltage range and integrated analog make it well-suited to mixed-signal designs that would otherwise require a separate op-amp or touch IC. Compared with a discrete MCU + external op-amp + touch controller, the PIC24EP128GP202 reduces BOM count, board area, and BOM risk.
When designing with this device, pay attention to the QFN-S exposed pad: it must be soldered to a sufficiently large copper pour to keep junction temperature within the -40C to +85C industrial range. Decoupling should follow the manufacturer's reference design with a 100 nF plus 10 uF bulk capacitor near each VDD/VSS pair. Forgetting to solder the EP is a common field failure mode for QFN-based PIC MCUs. The "T" in the part number indicates Tape and Reel packaging for high-volume assembly.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that complement the Microchip datasheet rather than restating it.
Drop-in alternatives for PIC24EP128GP202T-I/MM — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC24EP128GP202T-I/MM (same form factor and footprint) — differing in Package, Operating Temperature, ADC, Program Memory (Flash), CTMU.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24EP128GP202-I/MM
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP128GP202-E/SS
✅ Drop-In✓ In Stock
$2.71 / Unit
View Datasheet →DSPIC33EP128GP502-I/MM
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.44 / Unit
View Datasheet →PIC24EP256GP202-I/MM
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24EP64GP202-I/MM
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.04 / Unit
View Datasheet →PIC24EP128GP202T-I/MM Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24E 16-bit (modified Harvard) |
| Maximum CPU Speed | 70 MIPS (70 MHz FOSC, 2:1 divider) |
| Program Memory (Flash) | 128 KB (43K x 24 words) |
| Data Memory (SRAM) | 8 KB |
| Operating Voltage Range | 3.0 V to 3.6 V |
| On-chip Op Amps | Yes (integrated, dual) |
| CTMU | Yes (Charge Time Measurement Unit) |
| Peripheral Trigger Generator (PTG) | Yes |
| Operating Temperature Range | -40 C to +85 C (Industrial, -I grade) |
| Package | 28-QFN-S (6x6 mm) with exposed pad |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Packaging Media | Tape & Reel (T suffix) |
PIC24EP128GP202T-I/MM Pin Configuration
| Pin 1 | OSC1/CLKI/RA0 — Oscillator crystal input or general I/O |
| Pin 2 | OSC2/CLKO/RA1 — Oscillator crystal output or general I/O |
| Pin 3 | RA2 — General I/O |
| Pin 4 | RA3 — General I/O |
| Pin 5 | RA4 — General I/O |
| Pin 6 | VDD — Positive supply voltage |
| Pin 7 | VSS — Ground reference |
| Pin 8 | RB0 — General I/O / programming |
| Pin 9 | RB1 — General I/O |
| Pin 10 | RB2 — General I/O |
| Pin 11 | RB3 — General I/O |
| Pin 12 | RB4 — General I/O |
| Pin 13 | RB5 — General I/O |
| Pin 14 | RB6 — General I/O / ICS PGC |
| Pin 15 | RB7 — General I/O / ICS PGD |
| Pin 16 | RC0 — General I/O |
| Pin 17 | RC1 — General I/O |
| Pin 18 | RC2 — General I/O |
| Pin 19 | RC3 — General I/O |
| Pin 20 | RC4 — General I/O |
| Pin 21 | RC5 — General I/O |
| Pin 22 | RC6 — General I/O |
| Pin 23 | RC7 — General I/O |
| Pin 24 | RC8 — General I/O |
| Pin 25 | RC9 — General I/O |
| Pin 26 | AVDD — Analog positive supply |
| Pin 27 | AVSS — Analog ground reference |
| Pin 28 | MCLR — Master clear reset (active low) |
Typical Applications
PIC24EP128GP202T-I/MM is suitable for 7 applications: Industrial Motor Control, Switch-Mode Power Supply (SMPS) Digital Control, Capacitive Touch User Interface, Sensor Signal Conditioning, Building Automation Controllers, White Goods and Appliance Control, Medical Instrumentation Front-End.
Industrial Motor Control
The PIC24EP128GP202T-I/MM is well matched to industrial motor control, where its 70 MIPS core executes field-oriented control (FOC) loops for BLDC and PMSM motors within the typical 10-20 kHz PWM switching interval. The 16-bit PWM engine with complementary outputs and programmable dead-time generation handles three-phase inverter timing, while the integrated op-amps condition current-sense shunt signals without external amplifiers. The 8 KB RAM is adequate for FOC state variables and the 128 KB Flash holds full motor libraries plus user code. CTMU and DMA further offload measurement and commutation events from the CPU.
Recommended
Switch-Mode Power Supply (SMPS) Digital Control
For digital PFC and digital DC-DC converters the PIC24EP128GP202T-I/MM provides the 70 MIPS throughput needed to execute voltage-mode and average-current-mode control loops within 50-100 kHz switching frequencies. The high-speed 16-bit PWM with 1 ns resolution supports digital peak current mode control. The integrated op-amps sense input voltage and inductor current directly, while the PTG offloads repetitive trigger patterns for synchronous rectifiers. The 3.0-3.6 V supply aligns with auxiliary rails inside the SMPS controller section. Hardware DMA captures ADC samples without CPU intervention, reducing control-loop jitter.
Recommended
Capacitive Touch User Interface
The CTMU peripheral in the PIC24EP128GP202T-I/MM delivers sub-nanosecond timing resolution, enabling robust capacitive touch sensing on up to 16 channels with a single IC and no external touch controller. Combined with the 70 MIPS CPU handling capacitive touch scanning, gesture recognition, and backlight control in one thread, designers save the cost of a dedicated touch IC. The on-chip op-amps can also drive LED backlight current via PWM-controlled current sources. The 8 KB SRAM comfortably fits a 16-button scanning matrix and gesture state machine. This integration suits consumer appliances and industrial HMI panels.
Recommended
Sensor Signal Conditioning
The PIC24EP128GP202T-I/MM with integrated dual op-amps interfaces directly to bridge sensors, RTDs, thermocouples, and photodiodes without external instrumentation amplifiers. The 10/12-bit ADC combined with the op-amps provides a complete analog front-end in a single chip. The PTG sequences conversions, op-amp gain changes, and excitation switching deterministically while DMA stores results. At 70 MIPS, calibration math (linearization, compensation, filtering) runs in real time. This is a strong fit for industrial transmitters and medical instrumentation where BOM reduction matters.
Recommended
Building Automation Controllers
Building automation sub-controllers for HVAC dampers, lighting zones, and blind actuators benefit from the PIC24EP128GP202T-I/MM mix of UART/SPI/I2C peripherals, op-amps, and CTMU. The industrial -40C to +85C temperature grade handles unconditioned electrical closets. The 128 KB Flash fits BACnet or Modbus stacks plus application logic, while 8 KB SRAM holds network buffers. The CTMU can read rotary encoder inputs for blind-position feedback without an external counter IC. UART modules support RS-485 transceivers for industrial fieldbus nodes.
Recommended
White Goods and Appliance Control
Washing machines, dishwashers, induction cooktops, and refrigerators commonly use the PIC24EP family because the integrated op-amps simplify motor-current and temperature-sensor conditioning. The 70 MIPS CPU runs user-interface logic, motor commutation, and safety monitoring concurrently. The hardware DMA and CTMU remove interrupt overhead from routine tasks, keeping the deterministic real-time loop responsive. Industrial temperature grade handles under-cabinet environments. The 128 KB Flash accommodates graphical user-interface assets and field-updateable firmware.
Recommended
Medical Instrumentation Front-End
For portable medical devices such as blood-pressure monitors, pulse oximeters, and glucose meters, the PIC24EP128GP202T-I/MM integrates the analog front-end (op-amps + ADC + CTMU) and the control MCU in a single 6x6 mm QFN. The 70 MIPS throughput runs digital filtering (FIR/IIR), pulse-rate extraction, and display refresh in one MCU. The 3.0-3.6 V supply supports direct Li-ion battery operation. Hardware DMA keeps ADC sampling jitter-free, which is critical for SpO2 photoplethysmography waveforms. The 128 KB Flash holds FDA-traceable firmware revisions.
Recommended
Recommended Products Summary
Engineering reference data for PIC24EP128GP202T-I/MM — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24EP128GP202-I/MM | dsPIC33EP128GP502-I/MM | PIC24EP256GP202-I/MM | PIC24EP64GP202-I/MM |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-QFN-S (6x6 mm) | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same |
| Core Architecture | PIC24E 16-bit | PIC24E 16-bit (identical) | dsPIC33E 16-bit + DSP | PIC24E 16-bit | PIC24E 16-bit |
| Maximum CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Program Flash | 128 KB | 128 KB | 128 KB | 256 KB | 64 KB |
| Data SRAM | 8 KB | 8 KB | 8 KB | 16 KB | 4 KB |
| On-chip Op Amps | Yes (dual) | Yes (dual) | Yes (dual) | Yes (dual) | Yes (dual) |
| DSP Engine | No | No | Yes (DSP MAC unit) | No | No |
| Operating Voltage | 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 | 3.0 V to 3.6 V |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Key Differentiators
- Integrated dual op-amps and CTMU eliminate external analog ICs (vs PIC24FJ64GA002-I/ML)
- Peripheral Trigger Generator (PTG) offloads deterministic sequencing from CPU (vs PIC24HJ128GP502)
- 70 MIPS at 3.3 V in 28-QFN-S is best-in-class for 16-bit MCUs with on-chip op-amps (vs dsPIC33EP128GP502-I/MM)
- PPS remappable I/O simplifies PCB routing vs fixed-pin PIC24F (vs PIC24FJ128GA010)
Design Notes
Estimated: at 70 MIPS, 3.3 V, and typical 30 mA active current, the PIC24EP128GP202T-I/MM dissipates approximately 0.1 W. The 28-QFN-S exposed pad has a typical theta_JA around 30 C/W on a JEDEC 4-layer test board, yielding a 3 C junction rise above ambient. Even so, the EP MUST be soldered to a ground pour of at least 25 mm^2 to achieve this thermal performance. Skipping the EP connection is a common cause of thermal-shutdown failures in field returns, especially when the IC drives several GPIO at high slew rates.
Place one 100 nF X7R 0402 (or smaller) decoupling capacitor adjacent to every VDD/VSS pair, plus a shared 10 uF X5R bulk capacitor within 5 mm of the package. Separate analog (AVDD/AVSS) decoupling from digital with a ferrite bead if the op-amps or ADC are used at low signal levels. Route the 70 MHz oscillator traces symmetrically and keep them short; avoid running signal traces under the crystal. The exposed pad via array should use 0.3 mm drill vias on a 0.6 mm pitch grid for optimal thermal transfer.
Three common PIC24EP128GP202T-I/MM pitfalls: (1) forgetting the MCLR pull-up - leaving MCLR floating causes spurious resets; (2) configuring the PPS (Peripheral Pin Select) for two functions on the same pin - the second write silently fails; (3) not enabling the JTAG/ICS interface in configuration bits during development, which bricks the part until high-voltage programming recovers it. Always set the configuration bits in code and verify with MPLAB IPE before sealing firmware. The CTMU requires the internal current source calibration step before use; skipping it yields unreliable touch readings.
Estimated: at 3.3 V the PIC24EP128GP202T-I/MM draws about 30 mA active and 5-10 uA in sleep mode with RTCC running. To meet strict EMC requirements in industrial SMPS applications, place a 10 uH common-mode choke plus 100 ohm series resistor on every external cable connection. Brown-out reset should be configured to 2.7 V to protect Flash from incomplete writes during supply dips. When using the on-chip op-amps, ensure AVDD is within 0.3 V of VDD to avoid back-powering through ESD diodes.
Compliance Information
Industrial grade -40C to +85C. Halogen-free per Microchip product page. Not AEC-Q100 qualified; PIC24EP automotive parts use a different ordering code. RoHS and REACH compliant per EU directive declarations on Microchip.com.
