PIC24EP256GP202-H/SS - 16-bit 70 MIPS 256KB Flash MCU | Microchip
MPN: PIC24EP256GP202-H/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.2 | $9.20 |
| 10 | $8.45 | $84.50 |
| 100 | $7.62 | $762.00 |
| 500 | $6.95 | $3,475.00 |
| 1,000 | $6.3 | $6,300.00 |
PIC24EP256GP202-H/SS Overview
A microcontroller (MCU) is a single-chip computer that combines a CPU core, program memory (Flash), data memory (SRAM), and programmable peripherals such as timers, communication interfaces, and analog blocks. The PIC24E family belongs to the dsPIC/PIC24 16-bit modified-Harvard architecture family, positioned between 8-bit PIC MCUs and higher-end dsPIC DSC digital-signal controllers in Microchip's product hierarchy. It targets applications needing more code space, peripherals, and DSP-class performance than 8-bit parts, but without the dedicated DSP engine of dsPIC33 devices.
Key specifications include: 70 MIPS CPU at 60 MHz (with 2-cycle instruction set pipeline), 256 KB self-programmable Flash, 16 KB SRAM, 1 KB EEPROM, two on-chip op amps, 32 KB peripheral RAM, 8/16-bit Parallel Master Port (PMP), five 16-bit timers, and 21 channels of 10-bit ADC at 1.1 Msps. Communication peripherals include I2C, SPI, UART, and CAN-FD (on GP variants), with Peripheral Trigger Generator (PTG) for offloading complex timing sequences.
The PIC24E core uses a 16-bit modified-Harvard architecture with single-cycle MAC support, allowing efficient C compiler code density. The H temperature grade designation means the part is rated for -40 °C to +150 °C operation and is qualified to AEC-Q100 for automotive under-hood and industrial environments. The integrated op amps and CTMU enable on-chip signal conditioning for sensor and touch-key applications.
Typical applications include automotive body and HVAC controllers, industrial motor drives and pumps, medical portable instrumentation, digital sensor hubs, industrial control panels, and consumer power-tool controllers. The wide AEC-Q100 grade extends these parts into engine compartments, motor housings, and other high-temperature locations.
When designing with this MCU, ensure the 3.3 V rail is decoupled with 100 nF and 10 µF capacitors placed close to the VDD/VSS pins, and reserve one ICSP/ICD pin pair for in-circuit debugging. The on-chip op amps share pins with the ADC and may require the analog/digital I/O pin assignment to be locked at design time. Reference the Microchip PIC24E Family Reference Manual for stack sizing and interrupt priority configuration.
This page consolidates distributor pricing for PIC24EP256GP202-H/SS, drop-in alternatives within the PIC24E family, and practical design notes not found in the manufacturer datasheet — providing engineer-ready selection context for new designs and rework situations.
Drop-in alternatives for PIC24EP256GP202-H/SS — 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 PIC24EP256GP202-H/SS (same form factor and footprint) — differing in ADC, Package, Mounting Type, Core Architecture, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24EP256GP202-I/SS
✅ Drop-In✓ In Stock
$5.09 / Unit
View Datasheet →PIC24EP128GP202-H/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP128MC202-H/SS
✅ Drop-In✓ In Stock
$4.11 / Unit
View Datasheet →PIC24EP256GP202-H/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24EP256GP202-H/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24EP256GP202-H/SS Maximum Ratings & Electrical Characteristics
| Core | PIC24E (16-bit modified Harvard) |
| Instruction Set | 16-bit, 2-cycle pipeline, single-cycle MAC |
| CPU Speed | 70 MIPS at 60 MHz |
| Flash Program Memory | 256 KB (85.5K x 24 words) |
| SRAM | 16 KB |
| EEPROM | 1 KB |
| Supply Voltage (VDD) | 3.0 V to 3.6 V |
| Operating Temperature | -40 °C to +150 °C (H grade) |
| ADC | Up to 1 Msps, 10/12-bit |
| On-Chip Op Amps | 2 |
| On-Chip CTMU | Yes |
| Peripheral Trigger Generator (PTG) | Yes |
| Communication Interfaces | I2C, SPI, UART, CAN-FD |
| Package | 28-SSOP (0.209 inch, 5.30 mm body width) |
| Mounting Type | Surface Mount |
| AEC-Q100 Qualification | Qualified |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC24EP256GP202-H/SS Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input |
| Pin 2 | AN0/RP0 — Analog input 0 / Remappable peripheral pin 0 |
| Pin 3 | AN1/RP1 — Analog input 1 / Remappable peripheral pin 1 |
| Pin 4 | PGED2/RP2 — ICD data line / Remappable peripheral pin 2 |
| Pin 5 | PGEC2/RP3 — ICD clock line / Remappable peripheral pin 3 |
| Pin 6 | AN2/RP4 — Analog input 2 / Remappable peripheral pin 4 |
| Pin 7 | AN3/RP5 — Analog input 3 / Remappable peripheral pin 5 |
| Pin 8 | AN4/RP6 — Analog input 4 / Remappable peripheral pin 6 |
| Pin 9 | AN5/RP7 — Analog input 5 / Remappable peripheral pin 7 |
| Pin 10 | VSS — Ground reference |
| Pin 11 | OSCI/CLKI/RC12 — Crystal oscillator input / External clock input |
| Pin 12 | OSCO/CLKO/RC15 — Crystal oscillator output / Clock output |
| Pin 13 | VDD — Positive supply voltage (3.3V) |
| Pin 14 | SOSCI/RP13 — Secondary oscillator / Remappable peripheral pin 13 |
| Pin 15 | SOSCO/RP14 — Secondary oscillator output / Remappable peripheral pin 14 |
| Pin 16 | RP8 — Remappable peripheral pin 8 |
| Pin 17 | RP9 — Remappable peripheral pin 9 |
| Pin 18 | RP10 — Remappable peripheral pin 10 |
| Pin 19 | RP11 — Remappable peripheral pin 11 |
| Pin 20 | VCAP — Filter capacitor for internal core voltage regulator |
| Pin 21 | PGED1/RP12 — ICD data line 1 / Remappable peripheral pin 12 |
| Pin 22 | PGEC1/RP15 — ICD clock line 1 / Remappable peripheral pin 15 |
| Pin 23 | AN6/OC1/RP16 — Analog input 6 / Output compare 1 / Remappable pin 16 |
| Pin 24 | AN7/OC2/RP17 — Analog input 7 / Output compare 2 / Remappable pin 17 |
| Pin 25 | AN8/OC3/RP18 — Analog input 8 / Output compare 3 / Remappable pin 18 |
| Pin 26 | AN9/OC4/RP19 — Analog input 9 / Output compare 4 / Remappable pin 19 |
| Pin 27 | VSS — Ground reference |
| Pin 28 | VDD — Positive supply voltage (3.3V) |
Typical Applications
PIC24EP256GP202-H/SS is suitable for 6 applications: Automotive Body Control Modules, Industrial Motor Drive Control, Medical Portable Instrumentation, Digital Sensor Hubs, Industrial Control Panels and HMI, Consumer Power-Tool Controllers.
Automotive Body Control Modules
The PIC24EP256GP202-H/SS fits automotive BCM (body control module) applications where its AEC-Q100 H temperature grade (-40C to +150C) and CAN-FD peripheral handle chassis and body-area networking reliably. The 256 KB Flash stores multiple network protocol stacks and OSEK/Autosar-style task images, while the 16 KB SRAM supports CAN message buffers and diagnostic trace. The integrated op amps condition analog sensor inputs (temperature, current, position) directly into the 1 Msps ADC, eliminating external signal conditioning and reducing BOM cost. The Peripheral Trigger Generator (PTG) offloads repetitive timing sequences such as PWM-driven LED dimming and actuator control, freeing the CPU for higher-level state machine code. This part is preferred over consumer-grade MCUs for under-hood modules and is qualified to AEC-Q100 environmental test standards.
Recommended
Industrial Motor Drive Control
The PIC24EP256GP202-H/SS is well suited for industrial motor drive control, especially when paired with the dsPIC33E motor-control firmware ecosystem. Its 70 MIPS core executes PI / field-oriented control loops at update rates above 20 kHz, while the 1 Msps ADC samples back-EMF and current-sense signals with under 1 us conversion time. The integrated op amps provide current-shunt amplification directly on-chip, reducing external component count on the analog front-end. The PTG module orchestrates ADC sampling, PWM updates, and fault response without CPU intervention, lowering interrupt latency and improving drive reliability. The H grade temperature range permits deployment in enclosed motor housings, where ambient temperatures routinely exceed 100 C. Reference the Microchip AN1078 sensorless BLDC and AN1206 FOC application notes for firmware starting points.
Recommended
Medical Portable Instrumentation
The PIC24EP256GP202-H/SS serves medical portable instrumentation such as pulse oximeters, glucose meters, and patient-worn telemetry where low power, deterministic 16-bit performance, and AEC-Q100 reliability are required. The 70 MIPS throughput runs DSP-style filtering (FIR/IIR) on biosignals at low latency, while the 16 KB SRAM buffers measurement frames without external memory. The CTMU module measures capacitance for touch-key human interface and humidity sensor interfaces, and the on-chip op amps condition high-impedance sensor outputs directly into the ADC. Low-power Sleep and Idle modes drop quiescent current into the microampere range, extending battery life in always-on applications. The H grade temperature range supports clinical and home-healthcare environments including accelerated aging test protocols.
Recommended
Digital Sensor Hubs
The PIC24EP256GP202-H/SS works well as a digital sensor hub aggregating multiple I2C/SPI sensors, processing data, and forwarding to a host controller via CAN, UART, or USB. The 256 KB Flash supports over-the-air (OTA) bootloader and dual-image redundancy, allowing safe field firmware updates on deployed industrial assets. The 1 Msps ADC samples analog sensors alongside digital sensor data, and the on-chip CTMU supports capacitive touch buttons and liquid-level measurement. The PTG module triggers simultaneous ADC conversions across multiple analog channels synchronized to external events, improving sensor-fusion accuracy. H-grade qualification enables deployment in outdoor enclosures, factory floors, and other demanding environments.
Recommended
Industrial Control Panels and HMI
The PIC24EP256GP202-H/SS fits industrial control panels and human-machine interface (HMI) terminals where its 16-bit core, generous Flash, and rich peripheral mix drive TFT displays and keypad input. The Parallel Master Port (PMP) interfaces external graphics controllers or drives character LCDs directly, while the I2C/SPI ports connect to EEPROM, RTC, and capacitive touch controllers. The 70 MIPS throughput renders text and icons at responsive frame rates, and the on-chip op amps condition analog signals from rotary encoders and potentiometers. The H grade temperature range supports deployment in factory floors, unheated enclosures, and outdoor kiosks where ambient temperatures can reach 85 C or higher. Reference Microchip AN1227 for low-cost graphical HMI patterns.
Recommended
Consumer Power-Tool Controllers
The PIC24EP256GP202-H/SS is suitable for cordless power-tool motor controllers such as brushless drills, impact drivers, and garden tools where harsh electrical and thermal environments stress the electronics. The 70 MIPS core executes field-oriented control at high PWM frequencies, while the 1 Msps ADC samples phase currents and back-EMF for closed-loop torque control. The H temperature grade supports mounting near motor housings and battery packs where ambient temperatures routinely exceed 100 C during heavy load. The CTMU module monitors battery voltage and temperature simultaneously, providing battery protection without external ADC channels. The 256 KB Flash stores multiple tool profiles (drill, driver, hammer) with secure firmware update support via the on-chip bootloader.
Recommended
Recommended Products Summary
Engineering reference data for PIC24EP256GP202-H/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24EP256GP202-I/SS | PIC24EP128GP202-H/SS | PIC24EP128MC202-H/SS |
|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP | 28-SSOP | 28-SSOP |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | PIC24E 16-bit | PIC24E 16-bit | PIC24E 16-bit | PIC24E 16-bit |
| CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Flash Memory | 256 KB | 256 KB | 128 KB | 128 KB |
| SRAM | 16 KB | 16 KB | 16 KB | 16 KB |
| Temperature Grade | H (-40C to +150C) | I (-40C to +85C) | H (-40C to +150C) | H (-40C to +150C) |
| AEC-Q100 Qualified | Yes | No | Yes | Yes |
| Peripheral Set | GP (general purpose, CAN-FD) | GP (general purpose, CAN-FD) | GP (general purpose, CAN-FD) | MC (motor control, no CAN-FD) |
Key Differentiators
- AEC-Q100 H grade with 256 KB Flash in 28-SSOP (vs PIC24EP128GP202-H/SS)
- H temperature grade for under-hood automotive deployment (vs PIC24EP256GP202-I/SS)
- General-purpose peripheral set including CAN-FD (vs PIC24EP128MC202-H/SS)
Design Notes
Decouple each VDD/VSS pair with a 100 nF X7R ceramic placed within 3 mm of the pin pair, and add a single 10 uF bulk capacitor per supply rail. The on-chip voltage regulator requires a 1 uF to 10 uF low-ESR capacitor on VCAP (pin 20) to maintain core voltage stability under dynamic load. Failure to bypass VCAP properly can cause core voltage droop during ADC burst sampling, leading to sporadic code execution faults. Estimated: typical 3.3 V design with 70 MIPS active draw is approximately 30 mA; Idle and Sleep modes drop this into microampere range per datasheet DC characteristics.
At maximum 70 MIPS operation the MCU core can dissipate up to approximately 250 mW internally. The 28-SSOP package has a theta_JA of approximately 80 C/W in still air, leading to a 20 C junction temperature rise above ambient. For H-grade deployments near motors or batteries, calculate worst-case junction temperature using theta_JC of approximately 15 C/W and add heatsinking copper pour. AEC-Q100 systems should verify junction temperature stays below +150 C across all corner-case environmental test profiles.
Route the ICSP pins PGEC1/PGED1 (pins 21/22) and PGEC2/PGED2 (pins 4/5) with short, parallel traces and a ground guard trace for reliable in-circuit debug. Place the VCAP capacitor on the same side of the PCB as the MCU with a direct via to the ground plane; do not route VCAP through long traces. Keep analog inputs (AN0-AN9) away from switching signals like PWM outputs to minimize coupling into ADC measurements.
Do not enable JTAG and ICSP simultaneously without consulting the device configuration bits — conflict can lock out debugging. The CTMU current source requires the temperature diode channel to be calibrated before use; raw uncalibrated readings can be off by 30% or more. When migrating from PIC24EP256GP202-I/SS to the H grade, verify oscillator start-up time at -40 C since secondary oscillator behavior can vary. Always reference the Microchip PIC24E silicon errata for the exact device revision before AEC-Q100 production release.
The Parallel Master Port (PMP) pins can drive up to 10 MHz but require series damping resistors (22 ohm to 33 ohm) when interfacing with external SRAM or display controllers over traces longer than 50 mm. The CAN-FD bus requires a 120 ohm termination resistor at each end of the bus; missing termination causes bit errors above 1 Mbit/s. For SPI connections above 10 MHz use a series resistor at the source pin to dampen ringing — typically 22 ohm works for short board-to-board links.
Compliance Information
RoHS and lead-free per Microchip product page and distributor listings. AEC-Q100 H temperature grade qualification supports automotive under-hood and high-temperature industrial applications.
