PIC24EP128GP202-E/SS - 16-bit 128KB Flash MCU, AEC-Q100 | Microchip
MPN: PIC24EP128GP202-E/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.45 | $5.45 |
| 10 | $4.92 | $49.20 |
| 100 | $4.18 | $418.00 |
| 500 | $3.62 | $1,810.00 |
| 1,000 | $3.05 | $3,050.00 |
| 3,000 | $2.71 | $8,130.00 |
PIC24EP128GP202-E/SS Overview
What is a PIC24E microcontroller? The PIC24E is Microchip's 16-bit enhanced general-purpose MCU family, positioned between 8-bit PIC16/PIC18 parts and 32-bit PIC32 parts in the taxonomy (16-bit MCU -> microcontroller -> embedded processor -> semiconductor). It uses a modified Harvard architecture with a 16-bit data path, 24-bit instruction word, and dedicated DSP engine, giving it the math density of a small DSP without leaving the 16-bit ecosystem. The 'EP' suffix denotes 'Enhanced Performance' (70 MIPS capable core), and 'GP' indicates the general-purpose variant as opposed to motor-control (MC) or USB (GP50X) siblings.
Key features of this device include an integrated 10/12-bit ADC (up to 1.1 Msps), two internal operational amplifiers (op amps), a Charge Time Measurement Unit (CTMU) for capacitive touch and time-of-flight, and a Peripheral Trigger Generator (PTG) for hardware-state-machine automation. Connectivity includes I2C, SPI, UART/USART, IrDA, and LINbus. A built-in 16-bit timer/capture/compare and PWM module supports motor-control and power-conversion loops.
Architecturally, the PIC24EP128GP202 uses a single-cycle 70 MIPS core with hardware multiply/divide, a 16-channel DMA engine for low-CPU-overhead data movement, and a 2.0 V to 3.6 V core supply with on-chip voltage regulation. The 'E' suffix indicates the -40C to +125C extended operating temperature range, and 'SS' is the SSOP-28 package code.
Typical applications include automotive body and chassis ECUs, LIN-bus nodes, sensor-conditioning front-ends using the on-chip op amps, BLDC/PMSM motor control, LED lighting drivers, and industrial HMI panels. The combination of AEC-Q100 grade, ample analog integration, and 60 MIPS headroom suits cost-sensitive automotive nodes.
Design trade-off: this part's 28-pin SSOP footprint limits I/O count to roughly 21 usable GPIO versus larger PIC24EP variants (44/64/100-pin). When selecting pin-compatible alternatives, focus on memory size, ADC channel count, and op-amp availability rather than raw pin count.
Drop-in alternatives for PIC24EP128GP202-E/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 PIC24EP128GP202-E/SS (same form factor and footprint) — differing in Communication Interfaces, Maximum CPU Speed, Operating Temperature, Package, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24EP128GP202-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP128GP202-E/SP
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PIC24EP64GP202-E/SS
✅ Drop-In✓ In Stock
$2.9 / Unit
View Datasheet →PIC24EP256GP202-E/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP128MC202-E/SS
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP128GP502-E/SS
✅ Drop-In✓ In Stock
$2.75 / Unit
View Datasheet →PIC24EP128GP202-E/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24E 16-bit (modified Harvard) |
| Program Memory (Flash) | 128 KB (43K x 24 instructions) |
| Data RAM | 8 KB |
| Maximum CPU Speed | 60 MIPS (70 MIPS capable core) |
| Operating Voltage (Vdd) | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +125C (Extended, 'E' suffix) |
| Package | 28-pin SSOP (5.30 mm body width) |
| ADC | 10/12-bit, up to 1.1 Msps |
| Internal Op Amps | 2 |
| CTMU | Yes (Charge Time Measurement Unit) |
| Peripheral Trigger Generator (PTG) | Yes |
| DMA Channels | 16 |
| Communication Interfaces | I2C, SPI, UART/USART, IrDA, LINbus |
| Mounting Type | Surface Mount |
| AEC-Q100 Qualification | Qualified (automotive grade) |
| RoHS Status | Compliant |
PIC24EP128GP202-E/SS Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input |
| Pin 2 | AN0/VREF+/CVREF+/RA0 — Analog input 0 / positive voltage reference / comparator reference output |
| Pin 3 | AN1/VREF-/RA1 — Analog input 1 / negative voltage reference |
| Pin 4 | PGED2/AN2/C2IN-/RA2 — Programming data / analog input 2 |
| Pin 5 | PGEC2/AN3/C2IN+/RA3 — Programming clock / analog input 3 |
| Pin 6 | AN4/C1IN-/RA4 — Analog input 4 / comparator 1 negative input |
| Pin 7 | AVSS — Analog ground |
| Pin 8 | AVDD — Analog supply voltage |
| Pin 9 | RB4/AN5 — I/O port B / analog input 5 |
| Pin 10 | RB5/AN6 — I/O port B / analog input 6 |
| Pin 11 | RB6/AN7/PGEC1 — I/O port B / analog input 7 / programming clock 1 |
| Pin 12 | RB7/AN8/PGED1 — I/O port B / analog input 8 / programming data 1 |
| Pin 13 | VCAP — Internal voltage regulator capacitor (10 uF + 0.1 uF to ground) |
| Pin 14 | VDD — Digital supply voltage |
| Pin 15 | OSC1/CLKI/RC12 — Crystal oscillator input / external clock input |
| Pin 16 | OSC2/CLKO/RC15 — Crystal oscillator output / clock output |
| Pin 17 | VSS — Digital ground |
| Pin 18 | RC13/SOSCO — I/O port C / secondary oscillator output |
| Pin 19 | RC14/SOSCI — I/O port C / secondary oscillator input |
| Pin 20 | SDA1/RG3 — I2C data / port G |
| Pin 21 | SCL1/RG2 — I2C clock / port G |
| Pin 22 | RP0/RB0 — Remappable peripheral / port B |
| Pin 23 | RP1/RB1 — Remappable peripheral / port B |
| Pin 24 | RP2/RB2 — Remappable peripheral / port B |
| Pin 25 | RP3/RB3 — Remappable peripheral / port B |
| Pin 26 | RP4/RB8 — Remappable peripheral / port B |
| Pin 27 | RP5/RB9 — Remappable peripheral / port B |
| Pin 28 | RP6/RB10 — Remappable peripheral / port B |
Typical Applications
PIC24EP128GP202-E/SS is suitable for 7 applications: Automotive LIN Bus Nodes, Sensor Conditioning Front-Ends, BLDC/PMSM Motor Control, LED Lighting Drivers, Industrial HMI Panels, Battery Management Systems (BMS), Portable Medical Devices.
Automotive LIN Bus Nodes
The PIC24EP128GP202-E/SS is purpose-built for automotive LIN slave nodes thanks to its AEC-Q100 qualification, integrated LIN-compatible UART with hardware break-field generation, and 3.0-3.6 V operation matching the 12 V automotive bus after regulation. Its 60 MIPS PIC24E core comfortably handles LIN 2.2 protocol stacks including diagnostic transport layers while leaving CPU headroom for sensor polling and actuator PWM updates. The internal op amps condition wheel-speed, temperature, and position sensors, while the CTMU enables capacitive touch interfaces for door-handle and seat-control HMI. At $5.45 per unit in qty 1 (as of 2026-09-29), it offers the right cost/performance ratio for high-volume LIN nodes versus 32-bit alternatives.
Recommended
Sensor Conditioning Front-Ends
The two integrated operational amplifiers and 10/12-bit 1.1 Msps ADC make the PIC24EP128GP202-E/SS well suited as a sensor-conditioning front-end for strain gauges, thermistors, pressure sensors, and current shunts. The op amps can be configured as programmable-gain stages (gain set by resistor network) feeding directly into the ADC, eliminating the need for a separate analog front-end IC and reducing BOM cost by $0.50-$1.00 per channel. The 60 MIPS core runs digital filtering (FIR, IIR, RMS) and linearization algorithms in real time, while the 8 KB RAM buffers up to 4 Ksamples at 1 ksps without CPU intervention. The 28-pin SSOP package suits compact, reflow-soldered sensor modules.
Recommended
BLDC/PMSM Motor Control
Motor control is a flagship use case for the PIC24EP128GP202-E/SS, leveraging its 60 MIPS core for field-oriented control (FOC) loops, 16-bit PWM module with complementary outputs and dead-band control, and 1.1 Msps ADC for synchronized current sampling. The 'MC' sibling PIC24EP128MC202-E/SS adds a quadrature encoder interface, but the GP202 variant handles sensorless BLDC via back-EMF zero-crossing detection for cost-optimized fan, pump, and small-appliance drives. The internal op amps sense phase currents through low-side shunts, and the DMA engine moves conversion results without CPU overhead, leaving MIPS budget for speed PI loops and commutation state machines.
Recommended
LED Lighting Drivers
The PIC24EP128GP202-E/SS fits automotive and architectural LED drivers where AEC-Q100 qualification, LIN/dimming interfaces, and smooth PWM dimming are required. The 16-bit PWM module supports high-resolution dimming (>65,000 steps at 1 kHz PWM frequency) to eliminate visible flicker in cinematography-grade applications, while the CTMU enables capacitive touch sliders for dimmer controls. Internal op amps drive LED current-sense amplifiers in buck/boost topologies, and the 3.0-3.6 V Vdd range matches automotive battery after regulation. At 8 KB RAM, lighting effect engines (smooth color crossfades, DMX-512 protocol stacks) fit comfortably with headroom for over-the-air firmware updates via LIN.
Recommended
Industrial HMI Panels
For industrial human-machine interface panels requiring a mix of capacitive touch buttons, status LEDs, and simple graphics, the PIC24EP128GP202-E/SS provides the CTMU for touch sensing, PWM for LED brightness control, and UART/SPI for display driver communication. The 60 MIPS performance runs graphical LCD drivers (ST7565, SSD1306) and interpret button/keypad matrices in real time, while the extended -40C to +125C temperature range suits factory-floor and outdoor enclosures. The AEC-Q100 grade adds reliability margin even in non-automotive industrial deployments where vibration, ESD, and temperature stress are concerns.
Recommended
Battery Management Systems (BMS)
Cell-monitoring and balancing nodes in distributed BMS architectures benefit from the PIC24EP128GP202-E/SS's combination of 9 ADC channels for cell voltages and temperatures, internal op amps for cell-voltage buffering, and LIN interface for daisy-chained communication. The 128 KB Flash accommodates cell-balancing algorithms, state-of-charge estimation (coulomb counting), and CAN/LIN protocol stacks. AEC-Q100 qualification supports under-the-hood battery pack environments in mild-hybrid and EV applications. The 16-channel DMA engine continuously scans ADC conversions without CPU intervention, freeing MIPS for SOC/SOH calculations.
Recommended
Portable Medical Devices
Although not FDA-cleared, the PIC24EP128GP202-E/SS is used in non-critical medical device sub-assemblies such as patient bed controllers, infusion pump displays, and physiological monitor front-ends where its analog integration and reliability record are valued. The internal op amps amplify ECG/EMG/EEG signals at the board level before digital filtering, and the 1.1 Msps ADC captures waveforms with sufficient resolution for diagnostic previewing. The 60 MIPS performance supports real-time DSP (FFT, FIR filters) for signal extraction, and the AEC-Q100 grade reduces risk in continuous-operation deployments. Note: this part is not designed for life-critical applications; use the dsPIC33EP or PIC32MK families for those.
Recommended
Recommended Products Summary
Engineering reference data for PIC24EP128GP202-E/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24EP128GP202-I/SS | PIC24EP64GP202-E/SS | PIC24EP256GP202-E/SS | PIC24EP128MC202-E/SS | dsPIC33EP128GP502-E/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-pin SSOP | 28-pin SSOP - same | 28-pin SSOP - same | 28-pin SSOP - same | 28-pin SSOP - same | 28-pin SSOP - same |
| Flash Memory | 128 KB | 128 KB | 64 KB | 256 KB | 128 KB | 128 KB |
| RAM | 8 KB | 8 KB | 8 KB | 16 KB | 8 KB | 8 KB |
| Max CPU Speed | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS | 70 MIPS |
| Operating Temperature | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +125C (Extended) |
| AEC-Q100 Qualified | Yes | Yes | Yes | Yes | Yes | Yes |
| Core Type | PIC24E (16-bit, no DSP) | PIC24E (16-bit, no DSP) | PIC24E (16-bit, no DSP) | PIC24E (16-bit, no DSP) | PIC24E (16-bit, no DSP) | dsPIC33E (16-bit, with DSP engine) |
| Internal Op Amps | 2 | 2 | 2 | 2 | 2 | 2 |
| Special Features | CTMU + PTG + DMA | CTMU + PTG + DMA | CTMU + PTG + DMA | CTMU + PTG + DMA | CTMU + PTG + DMA + QEI | CTMU + PTG + DMA + DSP |
Key Differentiators
- AEC-Q100 qualification with extended -40C to +125C range (vs PIC24EP128GP202-I/SS)
- Mid-tier Flash density in the 28-pin GP20X family (vs PIC24EP64GP202-E/SS)
- CTMU + PTG + DMA triple integration (vs PIC24EP128MC202-E/SS)
Design Notes
The PIC24EP128GP202-E/SS requires a 10 uF + 0.1 uF decoupling network on the VCAP pin (pin 13) for the internal 2.0 V core regulator. Place both capacitors within 2 mm of the VCAP pin with a short trace to the ground plane. AVDD and VDD should each have a 10 uF + 0.1 uF bulk-ceramic pair placed within 5 mm of the respective supply pins. Source impedance below 0.1 ohm at all frequencies up to 100 MHz is required to prevent regulator instability and brown-out events during ADC conversion bursts.
Route the analog AVSS/AVDD pair as a Kelvin connection directly to the digital VSS/VDD plane at a single point near the AVDD pin, not scattered around the IC. Analog signals (AN0-AN8, VREF+/VREF-) should be routed on a separate analog layer or guarded with ground traces; keep digital switching signals (PWM, SDA, SCL) at least 3 mm away from analog traces. The crystal/oscillator traces must be < 5 mm long, surrounded by ground pour, and matched in length within 1 mm for low-EMI operation.
Estimated: at 60 MIPS full load with all peripherals active, the PIC24EP128GP202-E/SS draws approximately 30-40 mA from Vdd. Designers often underestimate this and use 3.3 V LDO regulators rated at only 100 mA, causing thermal shutdown in closed enclosures. Use a switching regulator with at least 200 mA headroom for production margin. Additionally, ensure the MCLR pin has a proper 10 kohm pull-up to VDD - leaving MCLR floating causes intermittent resets in electrically noisy environments such as motor-control PCBs.
Compliance Information
AEC-Q100 qualified per Microchip product page; RoHS and REACH compliant per Microchip material declarations; conflict-minerals statement available on Microchip website.
