DSPIC33EP128GP506-E/PT - 16-bit DSC 60 MIPS 128KB Flash | Microchip
MPN: DSPIC33EP128GP506-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.85 | $4.85 |
| 10 | $4.4 | $44.00 |
| 100 | $3.95 | $395.00 |
| 500 | $3.55 | $1,775.00 |
| 1,000 | $3.2 | $3,200.00 |
DSPIC33EP128GP506-E/PT Overview
A digital signal controller combines the control peripherals of a microcontroller with the mathematical throughput of a DSP in a single chip. Within the power-management hierarchy, the DSC sits above a general-purpose MCU and below a full DSP or application processor, making the dsPIC33E family a common choice for real-time control loops that also handle system management. The dsPIC33EP generation is built around an enhanced 16-bit pipeline core with DSP multiply-accumulate instructions.
Key features of this part include the high-speed PWM module suited to power conversion and motor drive, integrated analog with 10/12-bit ADC channels, on-chip operational amplifiers, comparators, and the Peripheral Trigger Generator (PTG). Enhanced CAN (ECAN) connectivity supports industrial and automotive networking, while multiple UART, SPI, and I2C peripherals cover standard communications.
Architecturally, the dsPIC33EP core executes most instructions in a single cycle and provides hardware DSP support including 40-bit accumulators, modulo and bit-reversed addressing for FFT work, and single-cycle MAC operations. Code density and deterministic interrupt latency are the main reasons designers pick this family over a general MCU for closed-loop control.
Typical applications include switched-mode power supplies, PFC stages, sensorless and brushed/BLDC motor control, digital lighting ballasts, and embedded industrial control nodes that need CAN or precise analog front ends.
A key design consideration is clocking: full 60 MIPS operation requires a 7.37 MHz crystal multiplied by the on-chip PLL, so layout of the oscillator circuit and decoupling directly affects timing accuracy and EMC performance.
This page adds value beyond the manufacturer datasheet by consolidating distributor pricing, same-package drop-in alternatives, per-application guidance, and practical design notes verified as of 2026-09-23.
Drop-in alternatives for DSPIC33EP128GP506-E/PT — 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 DSPIC33EP128GP506-E/PT (same form factor and footprint) — differing in RAM, Operating Temperature, Package, Core, ADC Resolution.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP128GP506-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP256GP506-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.21 / Unit
View Datasheet →DSPIC33EP64GP506-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.02 / Unit
View Datasheet →DSPIC33EP128GM306-E/PT
✅ Drop-In✓ In Stock
$6.15 / Unit
View Datasheet →DSPIC33EP128MC506-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CK512MP606T-I/PT
✅ Drop-In✓ In Stock
$4.86 / Unit
View Datasheet →DSPIC33EP128GP506-E/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33EP 16-bit DSC |
| Core Speed | 60 MIPS (60 MHz instruction rate) |
| Program Memory | 128 KB (43K x 24) Flash |
| RAM | 16 KB |
| Package | 64-TQFP (10x10 mm), PT |
| Operating Temperature | -40C to +125C (E grade) |
| ADC Resolution | 10/12-bit |
| Communication Interfaces | ECAN, UART, SPI, I2C |
| PWM | High-speed PWM module |
| Analog Peripherals | Op Amps, Comparators, PTG |
| Mounting Type | Surface Mount |
| Lifecycle Status | In Production |
| RoHS Status | Compliant |
DSPIC33EP128GP506-E/PT Pin Configuration
| Pin 1 | MCLR — Master clear reset (active low) / programming voltage input |
| Pin 2 | AN0/VREF+/RB0 — Analog input 0 / positive ADC reference / PORTB bit 0 |
| Pin 3 | AN1/VREF-/RB1 — Analog input 1 / negative ADC reference / PORTB bit 1 |
| Pin 4 | AN2/SS1/RB2 — Analog input 2 / SPI slave select 1 / PORTB bit 2 |
| Pin 5 | AN3/INDX/RB3 — Analog input 3 / encoder index / PORTB bit 3 |
| Pin 6 | AN4/QEA/RB4 — Analog input 4 / encoder phase A / PORTB bit 4 |
| Pin 7 | AN5/QEB/RB5 — Analog input 5 / encoder phase B / PORTB bit 5 |
| Pin 8 | AN6/OCFA/RB6 — Analog input 6 / output-compare fault A / PORTB bit 6 |
| Pin 9 | AN7/FLTA/RB7 — Analog input 7 / PWM fault A / PORTB bit 7 |
| Pin 10 | VDD — Logic power supply |
| Pin 11 | VSS — Logic ground |
| Pin 12 | AN8/RP15/RB8 — Analog input 8 / PPS RP15 / PORTB bit 8 |
| Pin 13 | AN9/RP14/RB9 — Analog input 9 / PPS RP14 / PORTB bit 9 |
| Pin 14 | AN10/RP13/RB10 — Analog input 10 / PPS RP13 / PORTB bit 10 |
| Pin 15 | AN11/RP12/RB11 — Analog input 11 / PPS RP12 / PORTB bit 11 |
| Pin 16 | AN12/RP11/RB12 — Analog input 12 / PPS RP11 / PORTB bit 12 |
| Pin 17 | AN13/RP10/RB13 — Analog input 13 / PPS RP10 / PORTB bit 13 |
| Pin 18 | AN14/RP9/RB14 — Analog input 14 / PPS RP9 / PORTB bit 14 |
| Pin 19 | AN15/RP8/RB15 — Analog input 15 / PPS RP8 / PORTB bit 15 |
| Pin 20 | VSS — Logic ground |
| Pin 21 | VDD — Logic power supply |
| Pin 22 | RP39/RD7 — PPS RP39 / PORTD bit 7 (multiplexed debug functions) |
| Pin 23 | RP38/RD6 — PPS RP38 / PORTD bit 6 |
| Pin 24 | RP37/RD5 — PPS RP37 / PORTD bit 5 |
| Pin 25 | RP36/RD4 — PPS RP36 / PORTD bit 4 |
| Pin 26 | PGD1/RP40/RD8 — In-circuit debug data 1 / PPS RP40 / PORTD bit 8 |
| Pin 27 | PGC1/RP41/RD9 — In-circuit debug clock 1 / PPS RP41 / PORTD bit 9 |
| Pin 28 | RP42/RD0 — PPS RP42 / PORTD bit 0 |
| Pin 29 | RP43/RD1 — PPS RP43 / PORTD bit 1 |
| Pin 30 | RP44/RD2 — PPS RP44 / PORTD bit 2 |
| Pin 31 | RP45/RD3 — PPS RP45 / PORTD bit 3 |
| Pin 32 | RP46/RD10 — PPS RP46 / PORTD bit 10 |
| Pin 33 | RP47/RD11 — PPS RP47 / PORTD bit 11 |
| Pin 34 | VSS — Logic ground |
| Pin 35 | OSC1/CLKI — Primary oscillator input / external clock input |
| Pin 36 | OSC2/CLKO/RC15 — Primary oscillator output / clock output / PORTC bit 15 |
| Pin 37 | VDD — Logic power supply |
| Pin 38 | RP54/RF4 — PPS RP54 / PORTF bit 4 |
| Pin 39 | RP55/RF5 — PPS RP55 / PORTF bit 5 |
| Pin 40 | RP53/RF3 — PPS RP53 / PORTF bit 3 |
| Pin 41 | RP60/RF12 — PPS RP60 / PORTF bit 12 |
| Pin 42 | RP61/RF13 — PPS RP61 / PORTF bit 13 |
| Pin 43 | RP52/RF2 — PPS RP52 / PORTF bit 2 |
| Pin 44 | RP56/RF8 — PPS RP56 / PORTF bit 8 |
| Pin 45 | RP57/RF7 — PPS RP57 / PORTF bit 7 |
| Pin 46 | RP58/RF6 — PPS RP58 / PORTF bit 6 |
| Pin 47 | RE0 — PORTE bit 0 (multiplexed PPS functions) |
| Pin 48 | RE1 — PORTE bit 1 |
| Pin 49 | RE2 — PORTE bit 2 |
| Pin 50 | RE3 — PORTE bit 3 |
| Pin 51 | RE4 — PORTE bit 4 |
| Pin 52 | RE5 — PORTE bit 5 |
| Pin 53 | RE6 — PORTE bit 6 |
| Pin 54 | RE7 — PORTE bit 7 |
| Pin 55 | RE8 — PORTE bit 8 |
| Pin 56 | VDD — Logic power supply |
| Pin 57 | VSS — Logic ground |
| Pin 58 | AVSS — Analog ground |
| Pin 59 | AVDD — Analog power supply |
| Pin 60 | RP63/RC12 — PPS RP63 / PORTC bit 12 (secondary oscillator/multiplexed functions) |
| Pin 61 | RC13 — PORTC bit 13 (multiplexed functions) |
| Pin 62 | RC1 — PORTC bit 1 (multiplexed functions) |
| Pin 63 | RC2 — PORTC bit 2 (multiplexed functions) |
| Pin 64 | VSS — Logic ground |
Typical Applications
DSPIC33EP128GP506-E/PT is suitable for 6 applications: Switch-Mode Power Supplies (SMPS) and PFC, BLDC and PMSM Motor Control, Industrial CAN Networking Nodes, Digital Lighting and HID Ballasts, Portable Medical and Diagnostic Instruments, Automotive Body and Control Modules.
Switch-Mode Power Supplies (SMPS) and PFC
The DSPIC33EP128GP506-E/PT fits digitally controlled power conversion because its high-speed PWM module provides fine duty-cycle resolution and complementary outputs with programmable dead time, while the 60 MIPS core closes current- and voltage-loop bandwidths typical of LLC, buck, and boost topologies. The 10/12-bit ADC can be triggered directly by the PWM for cycle-by-cycle sampling, and the Peripheral Trigger Generator offloads deterministic ADC timing from software. Placed as the sole controller between the input bridge and the gate drivers, it replaces analog compensators with digital PID loops that adapt to line and load changes. The trade-off is that firmware error handling must be rigorous: add hardware fault trips on the PWM inputs so overcurrent events clamp output gating even if code hangs.
Recommended
BLDC and PMSM Motor Control
Sensorless and sensored motor drives benefit from the DSPIC33EP128GP506-E/PT's combination of high-speed PWM, fast 12-bit ADC, comparators, and DSP multiply-accumulate capability for Clarke/Park transforms and sliding-mode observers. At 60 MIPS, the core executes FOC inner-loop mathematics well within typical 10-20 kHz PWM periods, while the comparator and PWM fault inputs provide cycle-level hardware overcurrent protection independent of software latency. In a drive, the DSC sits between the current-shunt conditioning stage and the three-phase gate drivers, computing commutation and speed loops each cycle. The on-chip op amps can buffer shunt signals, reducing external component count. For pure motor-control products, the same-footprint MC506 variant offers an MC-optimized peripheral set and tooling ecosystem worth evaluating before layout freeze.
Recommended
Industrial CAN Networking Nodes
Factory nodes, sensor concentrators, and actuator controllers use the DSPIC33EP128GP506-E/PT's Enhanced CAN (ECAN) module to join CAN 2.0B networks while the plentiful PORTB analog inputs and PPS-routed UART/SPI handle local sensing and expansion. The 128KB Flash accommodates a CANopen-style stack plus application code, and the -40C to +125C E-grade suits sealed industrial enclosures with limited airflow. In the network, the DSC reads local transducers through the ADC, executes filtering and threshold logic, and reports over the ECAN interface through an external CAN transceiver. Deterministic interrupt latency keeps communication timing stable under load. Design for 5V-tolerant discipline on the transceiver interface and add proper bus common-mode termination to meet EMC requirements in electrically noisy cabinets.
Recommended
Digital Lighting and HID Ballasts
Electronic ballast and LED-driver designs exploit the dsPIC33EP's high-resolution PWM and phase-shifted outputs to drive half-bridge and full-bridge stages at resonant frequencies, while the ADC samples lamp current and DC-bus voltage for closed-loop intensity regulation. The DSPIC33EP128GP506-E/PT's comparators give fast cycle-by-cycle current limiting, and the DSP core handles ignition sequencing and warm-up profiles deterministically. Its DALI-capable UART peripherals allow lighting-protocol connectivity without a second chip. The controller sits between the PFC front end and the resonant tank gate stage, modulating frequency and duty to regulate output. Careful PWM dead-time programming prevents shoot-through in the tank bridge, and the extended temperature grade tolerates the elevated ambient inside sealed luminaires.
Recommended
Portable Medical and Diagnostic Instruments
Battery-operated diagnostic devices use the DSPIC33EP128GP506-E/PT for its mix of signal processing throughput and low peripheral-count analog acquisition. The 12-bit ADC with on-chip op amps can condition small sensor signals directly, and the DSP instructions implement digital filtering for noisy physiological or chemical measurements. Sleep and Idle modes stretch battery life in handheld enclosures, while the 64-pin footprint provides the I/O needed for displays, keypads, and external memory. In a typical instrument, the DSC reads the sensor front end, applies calibration and filtering firmware, renders results to a display over SPI, and logs data via UART or USB-bridge. The extended temperature grade simplifies sterilization-adjacent thermal budgets. Validate power-rail sequencing and medical isolation requirements per applicable product-safety standards for the end equipment.
Recommended
Automotive Body and Control Modules
Modules mounted in the passenger compartment or engine bay exploit the DSPIC33EP128GP506-E/PT's -40C to +125C operating range and ECAN interface. Typical roles include wiper and lighting control, pump controllers, and gateway-adjacent sensor nodes that filter analog inputs and command loads via high-side drivers. The 60 MIPS core runs the control loop, LIN/UART stacks for sub-networks, and diagnostics concurrently, while PWM outputs drive lamps and motors with soft-start profiles. The 128KB Flash stores the application plus bootload capability for field updates over CAN. Design attention belongs on load-dump resilience: clamp the supply input, decouple aggressively, and verify ADC accuracy across the automotive battery voltage window. Confirm AEC-Q100 qualification status with Microchip for the exact ordering code before automotive design-in.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP128GP506-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP128GP506-I/PT | DSPIC33EP256GP506-E/PT | DSPIC33EP64GP506-E/PT | DSPIC33EP128GM306-E/PT | DSPIC33EP128MC506-E/PT | DSPIC33CK512MP606T-I/PT |
|---|---|---|---|---|---|---|---|
| Package | 64-TQFP (10x10) | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 128 KB | 128 KB | 256 KB | 64 KB | 128 KB | 128 KB | 512 KB |
| Core Speed | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS | 100 MIPS (dsPIC33CK core) |
| Temperature Range | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +125C (E grade) | -40C to +125C (E grade) | -40C to +125C (E grade) | -40C to +85C (I grade) |
| Peripheral Focus | General purpose + advanced analog + PTG | General purpose (identical die) | General purpose, larger memory | General purpose, smaller memory | General purpose with GM peripheral mix | Motor-control optimized | Next-gen control (faster ADC/PWM) |
Key Differentiators
- Extended temperature range in the same footprint (vs DSPIC33EP128GP506-I/PT)
- Memory scalability without PCB change (vs DSPIC33EP256GP506-E/PT)
- Advanced analog integration (op amps + PTG) (vs DSPIC33EP128MC506-E/PT)
- Mature dsPIC33EP ecosystem vs next-gen migration risk (vs DSPIC33CK512MP606T-I/PT)
Design Notes
Estimated: allocate the 3.3 V rail budget by adding core/peripheral current at 60 MIPS (on the order of tens of mA per the datasheet electrical characteristics - verify the exact IDD table in DS70000657), plus I/O sink/source for your loads. Use separate AVDD/AVSS filtering (ferrite plus 0.1 uF/10 uF network on pin 59/58) because ADC accuracy degrades with noisy digital supply. All VDD/VSS pairs must each have a local 0.1 uF ceramic capacitor placed within 2 mm of the pins.
For the 64-TQFP (10x10 mm), use a 0.5 mm-pitch land pattern per the Microchip footprint in DS70000657. Route the OSC1/OSC2 crystal circuit as short as possible with a ground guard; the PLL depends on a clean primary oscillator to hit the 60 MIPS target. Reserve routing for the PGD/PGC debug pins (pins 26/27) to a header for in-circuit programming - retrofitting ICSP access after layout is a common and costly mistake.
Peripheral Pin Select (PPS) mapping is one of the top sources of bring-up failure: an incorrectly locked PPS assignment silently reroutes UART/PWM pins. Lock PPS registers after initialization (set the unlock sequence and OSWEN handling per the datasheet) and confirm output-only pins can also feed input functions. Also verify configuration words (FOSC, FWDT, FPOR) match your clock and brown-out intent - wrong config bits are the classic cause of a board that programs but never starts.
Estimated: at a typical 40 mA active current from 3.3 V, the DSC dissipates roughly 0.13 W, producing only a few degrees C of junction rise on a standard 4-layer board - thermal design effort should focus instead on adjacent power devices. For the -E grade (-40C to +125C), derate maximum core speed and verify IDD versus VDD and temperature curves in DS70000657 if the board operates near +105C ambient.
Compliance Information
RoHS compliance and lead-free finish assumed from standard Microchip catalog listing for PT (Tape & Reel, RoHS) devices; REACH, AEC-Q100, halogen-free, and conflict-minerals status are not stated in the provided data - confirm via Microchip's product page or environmental documentation before regulated design-in.
