PIC24EP32GP202T-I/SO - 16-bit 70 MIPS 32KB Flash MCU | Microchip
MPN: PIC24EP32GP202T-I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.1 | $3.10 |
| 10 | $2.79 | $27.90 |
| 100 | $2.48 | $248.00 |
| 500 | $2.23 | $1,115.00 |
| 1,000 | $1.98 | $1,980.00 |
PIC24EP32GP202T-I/SO Overview
A 16-bit MCU (microcontroller unit) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash), volatile data memory (RAM), and a rich set of peripherals onto one silicon die. The PIC24EP family sits in the "Digital Signal Controller" (DSC) tier of Microchip's portfolio, combining a modified Harvard architecture with deterministic interrupt handling, single-cycle MAC DSP instructions, and a 70 MHz core clock that yields up to 70 MIPS throughput.
Key features include up to 32 KB self-programmable Flash, 4 KB SRAM, a 12-bit ADC with up to 500 ksps sampling rate, internal operational amplifiers (op amps), comparators, a Charge Time Measurement Unit (CTMU) for capacitive touch or precise timing, and a Peripheral Trigger Generator (PTG) for hardware-based state-machine automation. The device also integrates high-speed PWM, I2C, SPI, UART, and a 16-bit Parallel Master Port on selected variants.
The 28-SOIC package provides 0.295 inch (7.50 mm) body width and 1.27 mm pitch, making the part compatible with hand-soldering as well as standard SMT lines. The "T" suffix in the MPN indicates Tape and Reel packaging, while "I" denotes the industrial temperature grade. Programming and debugging are supported via the ICSP (In-Circuit Serial Programming) interface and the standard Microchip ICD/REAL ICE toolchain, with the MPLAB X IDE and XC16 compiler providing the primary development environment.
Typical applications include industrial sensor conditioning with on-chip op amps, motor-control sub-systems leveraging the high-speed PWM and ADC, general-purpose digital control boards, and consumer products that need DSP-class math at low power. The integrated op amps and comparators reduce external analog bill-of-materials cost, while the PTG enables complex timing sequences without continuous CPU intervention.
When designing with this part, note that code size is limited to 32 KB Flash and 4 KB RAM; verify your application footprint fits within these limits before committing to the layout. Also confirm the operating voltage (typically 3.0V-3.6V) matches your rail and add bulk decoupling near the VDD pins.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC24EP32GP202T-I/SO — 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 PIC24EP32GP202T-I/SO (same form factor and footprint) — differing in ADC, Core Architecture, Maximum CPU Speed, Operating Temperature, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24EP32GP202-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP32GP202T-E/SO
✅ Drop-In✓ In Stock
$2.52 / Unit
View Datasheet →PIC24EP128GP202-I/SO
✅ Drop-In✓ In Stock
$2.98 / Unit
View Datasheet →PIC24EP128GP202T-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP128MC202T-I/SO
✅ Drop-In✓ In Stock
$4.05 / Unit
View Datasheet →PIC24EP32GP202T-I/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24E 16-bit MCU/DSC |
| Program Memory (Flash) | 32 KB (10.7K x 24 words) |
| Data Memory (RAM) | 4 KB |
| Maximum CPU Speed | 70 MIPS (70 MHz) |
| Operating Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40 C to +85 C (Industrial) |
| ADC | 12-bit, 500 ksps |
| Op Amps | Internal (peripherals) |
| Comparators | Internal |
| CTMU | Yes (Charge Time Measurement Unit) |
| PTG | Yes (Peripheral Trigger Generator) |
| PWM | High-speed PWM module |
| Package | 28-SOIC (0.295 inch / 7.50 mm body width) |
| Mounting Type | Surface Mount |
| Programming Interface | ICSP (In-Circuit Serial Programming) |
| Packaging | Tape and Reel (T suffix) |
| RoHS Status | Compliant |
PIC24EP32GP202T-I/SO Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input, active low |
| Pin 2 | RA0 — Port A bit 0 / analog input / op amp output |
| Pin 3 | RA1 — Port A bit 1 / analog input / op amp inverting input |
| Pin 4 | RB0 — Port B bit 0 / analog input / PGED1 programming data |
| Pin 5 | RB1 — Port B bit 1 / analog input / PGEC1 programming clock |
| Pin 6 | RB2 — Port B bit 2 / analog input |
| Pin 7 | RB3 — Port B bit 3 / analog input |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1 — Crystal oscillator input / external clock input |
| Pin 10 | OSC2 — Crystal oscillator output |
| Pin 11 | RB4 — Port B bit 4 / analog input |
| Pin 12 | RB5 — Port B bit 5 / analog input |
| Pin 13 | RB6 — Port B bit 6 / analog input |
| Pin 14 | RB7 — Port B bit 7 / analog input |
| Pin 15 | VSS — Ground reference |
| Pin 16 | VDD — Digital supply voltage 3.0-3.6 V |
| Pin 17 | RA2 — Port A bit 2 / analog input / op amp non-inverting input |
| Pin 18 | RA3 — Port A bit 3 / analog input |
| Pin 19 | RA4 — Port A bit 4 / analog input |
| Pin 20 | RA5 — Port A bit 5 / analog input |
| Pin 21 | RB8 — Port B bit 8 / SDA1 / analog input |
| Pin 22 | RB9 — Port B bit 9 / SCL1 / analog input |
| Pin 23 | RB10 — Port B bit 10 / analog input |
| Pin 24 | RB11 — Port B bit 11 / analog input |
| Pin 25 | RB12 — Port B bit 12 / analog input |
| Pin 26 | RB13 — Port B bit 13 / analog input |
| Pin 27 | RB14 — Port B bit 14 / analog input |
| Pin 28 | RB15 — Port B bit 15 / analog input |
Typical Applications
PIC24EP32GP202T-I/SO is suitable for 6 applications: Industrial Sensor Conditioning, Low-Power Motor Control Subsystems, Consumer Device Controllers, Data Acquisition Front Ends, Capacitive Touch User Interfaces, DSP-Style Filtering and Control.
Industrial Sensor Conditioning
The PIC24EP32GP202T-I/SO fits industrial sensor conditioning boards where low BOM cost and on-chip analog matter. Its internal op amps can buffer a bridge sensor or thermistor directly into the 12-bit 500 ksps ADC, eliminating external amplifiers. The 70 MIPS core runs linearization math in single-cycle MAC operations, while CTMU measures temperature via capacitance for self-calibration. Operating from 3.0-3.6 V on a regulated rail and tolerating -40 C to +85 C, the part drops directly onto a sensor PCB and supports ICSP for in-test firmware updates.
Recommended
Low-Power Motor Control Subsystems
For small brushed DC, stepper, and BLDC commutation, the PIC24EP32GP202T-I/SO delivers the required control bandwidth. The high-speed PWM module generates complementary drive signals with programmable dead time, the on-chip op amps sense phase current through shunt resistors, and the PTG offloads commutation sequencing from the CPU. Operating from a 3.3 V rail, the device handles 70 MIPS throughput at industrial temperatures, and the 32 KB Flash accommodates state-machine tables plus closed-loop PI controllers. Drop in PIC24EP128MC202T-I/SO if more Flash or extra PWM channels are needed.
Recommended
Consumer Device Controllers
The PIC24EP32GP202T-I/SO serves as the main controller in cost-sensitive consumer products that need 16-bit performance without stepping up to ARM Cortex-M0+. The 32 KB Flash holds application code and a small RTOS or state machine, while 4 KB RAM supports command buffers, sensor queues, and LCD driving. The CTMU enables capacitive touch buttons and sliders for HMI panels, and the UART/SPI/I2C peripherals interface to wireless modules, EEPROM, or display drivers. Industrial temperature rating ensures reliability in appliance and home-automation environments.
Recommended
Data Acquisition Front Ends
The PIC24EP32GP202T-I/SO is well-suited for compact data-acquisition modules that aggregate multiple analog and digital signals. The 12-bit ADC samples up to 500 ksps across multiple channels, the on-chip comparators implement window thresholds, and the PTG sequences DMA-style transfers without CPU load. With 32 KB Flash the device fits firmware for sample buffering, averaging, and Modbus or CAN transmit, while 4 KB RAM holds double-buffered sample arrays. The 28-SOIC package simplifies two-layer board layout and supports hand-rework.
Recommended
Capacitive Touch User Interfaces
The PIC24EP32GP202T-I/SO's CTMU (Charge Time Measurement Unit) measures capacitance with sub-pF resolution, enabling capacitive touch keys, sliders, and proximity sensors without dedicated touch ICs. The 70 MIPS core handles debounce, gesture recognition, and I2C communication with a host controller in real time. Industrial temperature range supports appliances and outdoor keypads. The 28-SOIC wide package is convenient for hobby and small-batch production, with ICSP allowing firmware tuning of touch thresholds directly on the assembly line.
Recommended
DSP-Style Filtering and Control
The PIC24EP32GP202T-I/SO's single-cycle MAC instruction set enables FIR and IIR filter implementation on-chip, useful for audio pre-processing, vibration analysis, and advanced PID loops. Operating at 70 MIPS, the device can run a 16-tap FIR at 4 MSPS throughput. The internal op amps condition sensor signals before the ADC, and PTG sequences ADC-to-DAC pipelines for closed-loop control without CPU intervention. Drop-in same-footprint variants such as PIC24EP128GP202T-I/SO scale up firmware headroom without PCB changes.
Recommended
Recommended Products Summary
Engineering reference data for PIC24EP32GP202T-I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24EP32GP202-I/SO | PIC24EP32GP202T-E/SO | PIC24EP128GP202-I/SO | PIC24EP128GP202T-I/SO | PIC24EP128MC202T-I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same |
| Core | PIC24E 16-bit, 70 MIPS | PIC24E 16-bit, 70 MIPS | PIC24E 16-bit, 60 MIPS (derated) | PIC24E 16-bit, 70 MIPS | PIC24E 16-bit, 70 MIPS | PIC24E 16-bit, 70 MIPS |
| Flash | 32 KB | 32 KB | 32 KB | 128 KB | 128 KB | 128 KB |
| RAM | 4 KB | 4 KB | 4 KB | 16 KB | 16 KB | 16 KB |
| Temperature Grade | Industrial -40C to +85C | Industrial -40C to +85C | Extended -40C to +125C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C |
| Packaging | Tape and Reel | Tray | Tape and Reel | Tray | Tape and Reel | Tape and Reel |
| Internal Op Amps | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- On-chip op amps and comparators reduce external analog BOM (vs PIC24EP32GP202T-E/SO)
- 4x larger Flash and 4x more RAM in the same pinout (vs PIC24EP128GP202T-I/SO)
- Tape and reel packaging supports SMT production (vs PIC24EP32GP202-I/SO)
- CTMU and PTG enable capacitive touch and hardware sequencing (vs PIC24EP128MC202T-I/SO)
Design Notes
Place a 10 uF bulk tantalum or ceramic capacitor plus a 0.1 uF ceramic decoupling cap directly adjacent to each VDD and VSS pin pair, with the shortest possible trace to the ground plane. The PIC24E core draws brief high-current spikes on clock edges; inadequate decoupling can cause intermittent brown-out resets. Estimated: at 70 MIPS with peripherals active, average core current is roughly 30-40 mA and peak transients can reach 80 mA for tens of nanoseconds.
Do not assume the 28-SOIC and 28-SPDIP pinouts are identical without checking the datasheet pin tables; some PIC24E variants repurpose port pins as alternate functions through the Peripheral Pin Select (PPS) module and the default mapping differs across family members. When migrating from PIC24EP32GP202 to PIC24EP128GP202, audit the PPS assignments in your configuration bits, especially for UART, SPI, and PWM output maps.
Route the ICSP signals PGED1 (RB0/pin 4) and PGEC1 (RB1/pin 5) to a 0.1 inch header with a series 4.7 kohm resistor on each line for in-circuit debug isolation. Keep the trace lengths under 50 mm and avoid routing these lines adjacent to high-speed PWM outputs to prevent programming glitches. Reference: Microchip ICD/REAL ICE hardware guide.
If using the internal op amps to amplify small signals (sub-10 mV), use a star-ground topology so the analog ground returns to a single point near the MCU's VSS pins. The internal op amp inputs are multiplexed with port pins and the ADC sample capacitor; route noisy digital lines away from the analog inputs to keep offset and gain errors within the datasheet limits.
Compliance Information
RoHS and lead-free per Microchip product page and DigiKey listing. AEC-Q100 not applicable for general-purpose MCU. Halogen-free status not explicitly stated in the provided data.
