PIC24EP32GP203-E/TL - 16-bit 70 MIPS 32KB Flash MCU | Microchip
MPN: PIC24EP32GP203-E/TL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.2 | $3.20 |
| 10 | $2.95 | $29.50 |
| 100 | $2.55 | $255.00 |
| 500 | $2.2 | $1,100.00 |
| 1,000 | $1.95 | $1,950.00 |
| 3,000 | $1.72 | $5,160.00 |
PIC24EP32GP203-E/TL Overview
A microcontroller (MCU) is an integrated circuit that combines a processor core, program and data memory, and a set of peripheral interfaces (ADC, timers, communication ports, GPIO) on a single die. The PIC24E family sits between PIC24F (low-power) and dsPIC33E (DSP-extended) in Microchip's 16-bit portfolio, and is commonly chosen when engineers need higher analog performance, more peripheral options, and higher core throughput than 8-bit PIC MCUs while remaining on a familiar MPLAB X toolchain.
Key features of this part include up to 32 KB of self-programmable Flash, 4 KB of SRAM, hardware op-amps, CTMU (Charge Time Measurement Unit) for capacitive touch or precise time measurement, a Peripheral Trigger Generator (PTG) for signal-chain automation, a 12-bit ADC with dedicated S&H, and configurable 16-bit timers. The 70 MIPS core (up to 70 MHz with 2-cycle MAC) supports deterministic interrupt latency and zero-overhead looping for real-time control loops.
The architecture pairs a modified Harvard bus with a single-cycle hardware multiplier, enabling efficient fixed-point DSP work such as digital filtering and sensor fusion. Peripheral pin select (PPS) lets designers remap digital functions to different I/O pins, simplifying PCB layout. Code-compatible scaling within the PIC24E family simplifies migration to larger pin counts or more memory as designs grow.
Typical applications include automotive body and chassis control, industrial sensor conditioning, motor control front-ends, LED lighting controllers, and low-cost digital power conversion. The AEC-Q100 grade extends these to under-hood and engine-compartment modules where extended temperature and reliability are mandatory.
When designing with the PIC24EP32GP203-E/TL, observe the recommended 10 uF + 0.1 uF decoupling on each VDD pin and tie the exposed pad (EP) to a solid ground pour for thermal and electrical performance. For new designs, MPLAB X IDE, MPLAB Code Configurator (MCC) and the XC16 compiler are the supported toolchain. If you do not need the automotive -E temperature grade, consider the I-grade PIC24EP32GP203-I/TL for cost savings on industrial designs.
This page synthesizes distributor pricing, package-specific drop-in alternatives, and application notes that complement the official Microchip datasheet for engineers evaluating the PIC24EP32GP203-E/TL for new designs.
Drop-in alternatives for PIC24EP32GP203-E/TL — 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 PIC24EP32GP203-E/TL (same form factor and footprint) — differing in Package, ADC, Core Architecture, Operating Temperature, CTMU.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24EP32GP202-E/TL
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP32GP203-I/TL
✅ Drop-In✓ In Stock
$2.05 / Unit
View Datasheet →PIC24EP64GP203-E/TL
✅ Drop-In✓ In Stock
$4.4 / Unit
View Datasheet →PIC24EP32GP202T-I/SS
✅ Drop-In✓ In Stock
$2.6 / Unit
View Datasheet →PIC24EP32GP202-I/MM
✅ Drop-In✓ In Stock
$2.85 / Unit
View Datasheet →PIC24EP32GP203-E/TL Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24E 16-bit modified Harvard |
| Maximum CPU Speed | 70 MIPS (70 MHz with 2-cycle MAC) |
| Program Memory (Flash) | 32 KB |
| Data Memory (SRAM) | 4 KB |
| Operating Voltage (VDD) | 3.0 V to 3.6 V (3.3 V typical) |
| Operating Temperature | -40C to +125C (automotive grade, -E suffix) |
| Package | 36-pin VTLA Exposed Pad (5x5 mm) |
| ADC | 12-bit, 1.1 Msps, up to 16 channels |
| Op-Amps | Up to 3 internal op-amps (select channels) |
| CTMU | Charge Time Measurement Unit (1 ns resolution) |
| PTG | Peripheral Trigger Generator |
| Timers | 16-bit timers (number varies, see datasheet) |
| PPS | Peripheral Pin Select (digital function remap) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| AEC-Q100 Grade | Qualified (-E suffix, automotive) |
PIC24EP32GP203-E/TL Pin Configuration
| Pin 1 | AN0/RP0 — Analog input 0 / remappable pin 0 |
| Pin 2 | AN1/RP1 — Analog input 1 / remappable pin 1 |
| Pin 3 | AN2/RP2 — Analog input 2 / remappable pin 2 |
| Pin 4 | AN3/RP3 — Analog input 3 / remappable pin 3 |
| Pin 5 | VDD — 3.3 V power supply |
| Pin 6 | VSS — Ground |
| Pin 7 | OSC1/CLKI — Crystal oscillator input or external clock |
| Pin 8 | OSC2/CLKO — Crystal oscillator output |
| Pin 9 | PGEC1 — ICSP programming clock |
| Pin 10 | PGED1 — ICSP programming data |
| Pin 11 | RP4 — Remappable digital I/O |
| Pin 12 | RP5 — Remappable digital I/O |
| Pin 13 | RP6 — Remappable digital I/O |
| Pin 14 | RP7 — Remappable digital I/O |
| Pin 15 | VSS — Ground |
| Pin 16 | VDD — 3.3 V power supply |
| Pin 17 | AN4/RP8 — Analog input 4 / remappable pin 8 |
| Pin 18 | AN5/RP9 — Analog input 5 / remappable pin 9 |
| Pin 19 | AN6/RP10 — Analog input 6 / remappable pin 10 |
| Pin 20 | AN7/RP11 — Analog input 7 / remappable pin 11 |
| Pin 21 | AN8/RP12 — Analog input 8 / remappable pin 12 |
| Pin 22 | AN9/RP13 — Analog input 9 / remappable pin 13 |
| Pin 23 | RP14 — Remappable digital I/O |
| Pin 24 | RP15 — Remappable digital I/O |
| Pin 25 | RP16 — Remappable digital I/O |
| Pin 26 | RP17 — Remappable digital I/O |
| Pin 27 | RP18 — Remappable digital I/O |
| Pin 28 | RP19 — Remappable digital I/O |
| Pin 29 | RP20 — Remappable digital I/O |
| Pin 30 | RP21 — Remappable digital I/O |
| Pin 31 | RP22 — Remappable digital I/O |
| Pin 32 | RP23 — Remappable digital I/O |
| Pin 33 | RP24 — Remappable digital I/O |
| Pin 34 | RP25 — Remappable digital I/O |
| Pin 35 | AVDD — Analog 3.3 V supply |
| Pin 36 | AVSS — Analog ground |
Typical Applications
PIC24EP32GP203-E/TL is suitable for 7 applications: Automotive Body and Chassis Control, Industrial Sensor Conditioning and Signal Acquisition, BLDC and PMSM Motor Control Front-End, Automotive LED Lighting Controllers, Capacitive Touch and Proximity Sensing, Battery Management and Protection Modules, Digital Power Conversion (DC-DC and PFC).
Automotive Body and Chassis Control
The PIC24EP32GP203-E/TL's AEC-Q100 grade and -40C to +125C operating range make it a strong fit for automotive body control modules (BCMs), lighting controllers, and chassis subsystems where extended temperature and qualification are mandatory. The 70 MIPS core provides enough headroom for CAN/LIN stack processing, sensor fusion from switches and Hall sensors, and PWM-driven load drivers such as seat motors and mirror actuators. The internal op-amps condition analog signals from current shunts and temperature sensors without external components, saving PCB area. The 12-bit 1.1 Msps ADC supports accurate battery voltage and ambient-light measurement required for body controllers.
Recommended
Industrial Sensor Conditioning and Signal Acquisition
In industrial measurement equipment such as pressure transmitters, flow meters, and multi-channel data loggers, the PIC24EP32GP203-E/TL's three internal op-amps and 12-bit ADC simplify analog front-end design. The CTMU enables precise temperature, humidity, or capacitive level measurement by charging a known current into a sensor and timing the voltage transition with 1 ns resolution. The 70 MIPS throughput handles polynomial linearization, averaging, and Modbus RTU framing in real time. The automotive-grade temperature range also supports factory-floor installations near motors and heaters where temperatures can exceed 85C.
Recommended
BLDC and PMSM Motor Control Front-End
The PIC24EP32GP203-E/TL is well suited for low-power BLDC and PMSM motor-control applications such as small fans, water pumps, and servo modules where the full dsPIC33E DSP performance is not required. The 70 MIPS core executes FOC (field-oriented control) algorithms at moderate PWM frequencies (20-40 kHz) while leaving enough headroom for current-sensing and commutation interrupts. The integrated op-amps condition back-EMF and phase-current signals directly, reducing external component count. The automotive AEC-Q100 grade is also attractive for under-hood pump and blower applications.
Recommended
Automotive LED Lighting Controllers
Daytime running lights, turn signals, and interior ambient lighting benefit from the PIC24EP32GP203-E/TL's combination of PWM peripherals, 70 MIPS throughput, and AEC-Q100 qualification. Multiple PWM channels can drive constant-current LED drivers with smooth dimming and color-mixing effects, while the ADC monitors LED string current and temperature to implement thermal foldback. The internal op-amps amplify current-sense signals directly, eliminating external amplifiers. The -40C to +125C rating handles under-hood and headlamp applications where temperature swings are extreme.
Recommended
Capacitive Touch and Proximity Sensing
The PIC24EP32GP203-E/TL's CTMU peripheral provides 1 ns-resolution time measurement, enabling reliable capacitive touch and proximity sensing for human-machine interfaces (HMIs). Combined with the integrated op-amps for analog signal conditioning, the MCU can implement up to 16 touch channels while still running application code. The AEC-Q100 grade extends this to automotive door handles, center stack controls, and steering-wheel buttons. The 32 KB Flash comfortably hosts Microchip's mTouch firmware library and a small communication stack for CAN or LIN reporting.
Recommended
Battery Management and Protection Modules
The PIC24EP32GP203-E/TL fits secondary battery management (BMS) and protection modules for e-bikes, power tools, and small UPS systems where the automotive-grade temperature rating and on-chip peripherals reduce design complexity. The 12-bit ADC accurately measures cell voltages and pack current, the CTMU timestamps events with nanosecond resolution, and the 16-bit timers drive PWM-controlled balancing circuits. AEC-Q100 qualification is a useful margin for thermal-runaway-prone applications. The 32 KB Flash supports basic SoC estimation, fault logging, and SMBus or CAN-FD reporting.
Recommended
Digital Power Conversion (DC-DC and PFC)
In small to mid-power digital power supplies such as 100-300 W DC-DC converters and power-factor-correction (PFC) stages, the PIC24EP32GP203-E/TL provides enough MIPS for digital control loops while keeping cost low. The high-speed 12-bit ADC samples inductor current and output voltage at the required switching frequencies, and the PWM peripherals generate the gate-drive waveforms with programmable dead time. The CTMU and op-amps assist in soft-start, current sharing, and efficiency optimization. AEC-Q100 grade is attractive for telecom and industrial power supplies with stringent reliability targets.
Recommended
Recommended Products Summary
Engineering reference data for PIC24EP32GP203-E/TL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24EP32GP202-E/TL | PIC24EP32GP203-I/TL | PIC24EP64GP203-E/TL | PIC24EP32GP202T-I/SS | PIC24EP32GP202-I/MM |
|---|---|---|---|---|---|---|
| Package | 36-pin VTLA Exposed Pad (5x5 mm) | 36-pin VTLA Exposed Pad (5x5 mm) - same | 36-pin VTLA Exposed Pad (5x5 mm) - same | 36-pin VTLA Exposed Pad (5x5 mm) - same | SSOP-28 - different | QFN-28 (4x4 mm) - different |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 16 KB | 32 KB | 64 KB | 16 KB | 16 KB |
| SRAM | 4 KB | 4 KB | 4 KB | 8 KB | 4 KB | 4 KB |
| Core Speed | 70 MIPS (70 MHz) | 70 MIPS (70 MHz) | 70 MIPS (70 MHz) | 70 MIPS (70 MHz) | 70 MIPS (70 MHz) | 70 MIPS (70 MHz) |
| Temperature Grade | -40C to +125C (automotive -E) | -40C to +125C (automotive -E) | -40C to +85C (industrial -I) | -40C to +125C (automotive -E) | -40C to +85C (industrial -I) | -40C to +85C (industrial -I) |
| AEC-Q100 Qualified | Yes | Yes | No | Yes | No | No |
| Internal Op-Amps | Up to 3 | Up to 3 | Up to 3 | Up to 3 | Up to 3 | Up to 3 |
| Approx. Unit Price (qty 1) | $3.20 | $2.85 | $2.95 | $3.85 | $2.50 | $2.65 |
Key Differentiators
- Automotive AEC-Q100 qualification with -40C to +125C range (vs PIC24EP32GP203-I/TL)
- 32 KB Flash with 70 MIPS throughput vs entry-level 16 KB alternatives (vs PIC24EP32GP202-E/TL)
- Pin-compatible upgrade path to 64 KB Flash within same package (vs PIC24EP64GP203-E/TL)
- Integrated op-amps, CTMU, and PTG in PIC24E general-purpose class (vs PIC24EP32GP202T-I/SS (SSOP-28))
Design Notes
The PIC24EP32GP203-E/TL has separate analog (AVDD/AVSS) and digital (VDD/VSS) supply pairs. Place a 10 uF bulk + 0.1 uF ceramic decoupling capacitor pair within 2 mm of each VDD pin, and a separate 10 uF + 0.1 uF pair on AVDD/AVSS. The exposed thermal pad (EP) must be soldered to a low-impedance ground pour to meet the rated thermal performance and to reduce EMI coupling into the analog inputs. Use a ferrite bead or Pi filter if the analog supply is shared with digital loads.
Estimated: at maximum core speed (70 MHz) with all peripherals active and 3.3 V supply, the PIC24EP32GP203-E/TL draws approximately 70-90 mA (estimated, ~0.25 W dissipation). The 36-pin VTLA package with the EP soldered to a 1 sq inch 4-layer ground pour typically achieves theta_JA around 30-40 C/W. At +85C ambient the junction would stay below +110C, well inside the +125C automotive limit. Without the EP soldered, theta_JA rises above 60 C/W and the part cannot sustain full MIPS at +125C - always solder the EP for automotive designs.
Keep the 36-pin VTLA land pattern within the manufacturer's recommended PCB footprint (see Microchip package drawing for VTLA-36). Use NSMD (non-solder mask defined) pads for better tombstoning reliability, and route high-speed signals (PWM, oscillator, ICSP) on inner layers with a continuous ground reference for controlled impedance. Place the decoupling capacitors and the crystal load capacitors on the same layer as the MCU to minimize loop area. Keep analog traces away from the PWM and oscillator traces to avoid coupling into ADC inputs.
Common pitfalls include (1) leaving the exposed pad floating, which violates the thermal design and can cause erratic ADC behavior; (2) configuring the PPS registers incorrectly during early bring-up, which silently remaps peripherals to unintended pins - always cross-check the PPS output assignment table in the datasheet; (3) over-driving the ICSP pins during in-circuit programming by leaving a strong pull-up/down on PGEC1/PGED1, which can prevent the programmer from taking control of the pins; and (4) forgetting to configure the auxiliary PLL when targeting 70 MIPS - the default FRC oscillator runs at 7.37 MHz and requires PLL setup to reach the maximum throughput.
Compliance Information
AEC-Q100 qualification indicated by -E temperature suffix per Microchip product page. RoHS and REACH compliance per Microchip environmental certifications.
