DSPIC33FJ128MC510-I/PF - 40 MIPS 16-bit DSC, 128KB Flash | Microchip
MPN: DSPIC33FJ128MC510-I/PF ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.7735 | $9.77 |
| 10 | $9.2 | $92.00 |
| 100 | $8.55 | $855.00 |
| 500 | $7.9 | $3,950.00 |
| 1,000 | $7.25 | $7,250.00 |
DSPIC33FJ128MC510-I/PF Overview
A Digital Signal Controller is a hybrid device class that merges a microcontroller (MCU) with a Digital Signal Processor (DSP) on a single die. Within the broader taxonomy it sits as: dsPIC33F -> DSC -> MCU/DSP -> microcontroller -> embedded processor -> semiconductor. The DSP engine adds a single-cycle MAC, dual 40-bit accumulators, and zero-overhead hardware looping, allowing closed-loop motor control, power conversion, and audio/sensor DSP algorithms to execute on the same core that handles housekeeping tasks such as UART, I2C, SPI and GPIO. This integration removes the need for a companion DSP chip, reducing BOM cost and PCB area in real-time control systems.
Key features of the DSPIC33FJ128MC510-I/PF include on-chip motor-control PWM with up to 8 PWM outputs, a 12-bit Analog-to-Digital Converter (ADC) with up to 32 input channels and dedicated S&H, a Quadrature Encoder Interface (QEI) for position feedback, and a rich set of serial peripherals. The 100-pin TQFP provides up to 85 digital I/O pins, supporting dense mixed-signal designs without external bus expanders. The Flash endurance is specified at 1,000 erase/write cycles minimum, and the device operates across the industrial -40 C to +85 C range for the -I suffix.
Architecturally the device uses a modified Harvard core with separate program and data buses, allowing simultaneous Fetch + ALU + DSP operation in a single instruction cycle. The DSP engine extends the ALU with 40-bit accumulators, barrel shifter, and single-instruction saturate/round logic, which is essential for field-oriented control (FOC) of three-phase PMSM/BLDC motors. The integrated Motor Control PWM module generates complementary PWM pairs with programmable dead time, fault inputs, and ADC-trigger alignment, eliminating most external glue logic.
Typical applications are three-phase AC induction and PMSM/BLDC motor control, sensorless and sensored FOC drives, industrial variable-frequency drives (VFDs), power conversion (PFC + DCDC), and digital audio processing. The combination of DSP throughput with a full MCU peripheral set makes it particularly well suited to appliances, HVAC blowers, pumps, fans, e-bike controllers, and CNC spindle drives in the 1-2 kW class.
When designing with this device, ensure the decoupling network uses a 10 uF bulk plus 0.1 uF ceramic per VDD/VSS pair, route the analog AVSS/AVDD traces as a star, and place the analog reference decoupling capacitor within 5 mm of the AVSS pin. Also note that the Flash endurance is rated lower than newer dsPIC33EP/dsPIC33CH families; if firmware uses frequent EEPROM emulation via Flash, plan wear-leveling or migrate to the 'A' revision or dsPIC33EP family for longer in-field endurance.
This page synthesizes distributor pricing, same-family drop-in alternatives, and design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33FJ128MC510-I/PF — 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 DSPIC33FJ128MC510-I/PF (same form factor and footprint) — differing in Package, Core Architecture, Operating Temperature, ADC, MSL Level.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ128MC510A-I/PF
✅ Drop-In✓ In Stock
$8.1 / Unit
View Datasheet →DSPIC33FJ128MC510A-E/PF
✅ Drop-In✓ In Stock
$7.65 / Unit
View Datasheet →DSPIC33FJ128MC510A-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ64MC510-I/PF
✅ Drop-In✓ In Stock
$3.2 / Unit
View Datasheet →DSPIC33FJ128MC510-I/PF Maximum Ratings & Electrical Characteristics
| Core Architecture | dsPIC33F (16-bit DSC, modified Harvard) |
| Family | dsPIC33F Motor Control |
| CPU Performance | 40 MIPS |
| Program Memory | 128 KB (128K x 8) Flash |
| Data RAM | 8 KB |
| Data EEPROM | 0 B (not available on this family) |
| Operating Voltage | 3.0 V to 3.6 V |
| Package | 100-pin TQFP (14x14 mm), designation PF |
| I/O Pins | Up to 85 digital I/O |
| ADC | 12-bit, up to 32 input channels |
| Motor Control PWM | 8 PWM outputs with fault inputs |
| Quadrature Encoder Interface | Yes (QEI) |
| Operating Temperature | -40 C to +85 C (industrial, -I suffix) |
| Mounting Type | Surface Mount |
| MSL Level | 3 |
| RoHS Status | Compliant |
DSPIC33FJ128MC510-I/PF Pin Configuration
| Pin 1 | RP15/RXD2/PWM1L/PMD15/RF5 — Remappable I/O / UART2 RX / PWM1 low |
| Pin 2 | RP16/TX2/PWM1H/PMD14/RF4 — Remappable I/O / UART2 TX / PWM1 high |
| Pin 3 | RP9/PWM2L/PMD13/RF3 — Remappable I/O / PWM2 low |
| Pin 4 | RP10/PWM2H/PMD12/RF2 — Remappable I/O / PWM2 high |
| Pin 5 | RP11/PWM3L/PMD11/RF8 — Remappable I/O / PWM3 low |
| Pin 6 | RP12/PWM3H/PMD10/RF7 — Remappable I/O / PWM3 high |
| Pin 7 | RP13/PWM4L/PMD9/RF6 — Remappable I/O / PWM4 low |
| Pin 8 | RP14/PWM4H/PMD8/RF13 — Remappable I/O / PWM4 high |
| Pin 9 | VDD — Digital supply 3.3 V |
| Pin 10 | VSS — Digital ground |
| Pin 11 | RP21/PWM5L/PMD7/RG1 — Remappable I/O / PWM5 low |
| Pin 12 | RP22/PWM5H/PMD6/RG0 — Remappable I/O / PWM5 high |
| Pin 13 | RP23/PWM6L/PMD5/RG15 — Remappable I/O / PWM6 low |
| Pin 14 | RP24/PWM6H/PMD4/RG14 — Remappable I/O / PWM6 high |
| Pin 15 | RP25/PWM7L/PMD3/RG13 — Remappable I/O / PWM7 low |
| Pin 16 | RP26/PWM7H/PMD2/RG12 — Remappable I/O / PWM7 high |
| Pin 17 | RP28/PWM8L/PMD1/RG9 — Remappable I/O / PWM8 low |
| Pin 18 | RP29/PWM8H/PMD0/RG8 — Remappable I/O / PWM8 high |
| Pin 19 | MCLR — Master clear / reset input |
| Pin 20 | OSC1/RA0 — Crystal oscillator input / GPIO |
| Pin 21 | OSC2/RA1 — Crystal oscillator output / GPIO |
| Pin 22 | AN0/CN0/RB0 — Analog input 0 |
| Pin 23 | AN1/CN1/RB1 — Analog input 1 |
| Pin 24 | AN2/CN2/RB2 — Analog input 2 |
| Pin 25 | AN3/CN3/RB3 — Analog input 3 |
| Pin 26 | AN4/CN4/RB4 — Analog input 4 |
| Pin 27 | AN5/CN5/RB5 — Analog input 5 |
| Pin 28 | VSS — Digital ground |
| Pin 29 | VDD — Digital supply 3.3 V |
| Pin 30 | AN6/OC1/RB6 — Analog input 6 / output compare 1 |
| Pin 31 | AN7/OC2/RB7 — Analog input 7 / output compare 2 |
| Pin 32 | AN8/OC3/RB8 — Analog input 8 / output compare 3 |
| Pin 33 | AN9/OC4/RB9 — Analog input 9 / output compare 4 |
| Pin 34 | AN10/CN10/RB10 — Analog input 10 |
| Pin 35 | AN11/CN11/RB11 — Analog input 11 |
| Pin 36 | VSS — Digital ground |
| Pin 37 | AVDD — Analog supply 3.3 V |
| Pin 38 | AVSS — Analog ground |
| Pin 39 | VREF+/AN12/RB12 — ADC voltage reference high / AN12 |
| Pin 40 | VREF-/AN13/RB13 — ADC voltage reference low / AN13 |
| Pin 41 | AN14/RB14 — Analog input 14 |
| Pin 42 | AN15/RB15 — Analog input 15 |
| Pin 43 | VDD — Digital supply 3.3 V |
| Pin 44 | VSS — Digital ground |
| Pin 45 | OC6/RD0 — Output compare 6 / GPIO |
| Pin 46 | OC7/RD1 — Output compare 7 / GPIO |
| Pin 47 | OC8/RD2 — Output compare 8 / GPIO |
| Pin 48 | OC9/RD3 — Output compare 9 / GPIO |
| Pin 49 | OC10/RD4 — Output compare 10 / GPIO |
| Pin 50 | OC11/RD5 — Output compare 11 / GPIO |
| Pin 51 | OC12/RD6 — Output compare 12 / GPIO |
| Pin 52 | OC13/RD7 — Output compare 13 / GPIO |
| Pin 53 | VDD — Digital supply 3.3 V |
| Pin 54 | VSS — Digital ground |
| Pin 55 | IC1/RF0 — Input capture 1 |
| Pin 56 | IC2/RF1 — Input capture 2 |
| Pin 57 | RP17/U1CTS/RF12 — Remappable I/O / UART1 CTS |
| Pin 58 | RP18/U1RTS/RF13 — Remappable I/O / UART1 RTS |
| Pin 59 | RP19/U1RX/RF4 — Remappable I/O / UART1 RX |
| Pin 60 | RP20/U1TX/RF5 — Remappable I/O / UART1 TX |
| Pin 61 | SCK1/RG6 — SPI1 clock |
| Pin 62 | SDO1/RG7 — SPI1 data out |
| Pin 63 | SDI1/RG8 — SPI1 data in |
| Pin 64 | SS1/RG9 — SPI1 slave select |
| Pin 65 | SCL1/RG2 — I2C1 clock |
| Pin 66 | SDA1/RG3 — I2C1 data |
| Pin 67 | VDD — Digital supply 3.3 V |
| Pin 68 | VSS — Digital ground |
| Pin 69 | CN15/RA8 — Change notification / GPIO |
| Pin 70 | CN16/RA9 — Change notification / GPIO |
| Pin 71 | CN17/RA10 — Change notification / GPIO |
| Pin 72 | CN18/RA11 — Change notification / GPIO |
| Pin 73 | CN19/RA12 — Change notification / GPIO |
| Pin 74 | CN20/RA13 — Change notification / GPIO |
| Pin 75 | CN21/RA14 — Change notification / GPIO |
| Pin 76 | CN22/RA15 — Change notification / GPIO |
| Pin 77 | FLTA2/RE0 — PWM fault input A2 |
| Pin 78 | FLTB2/RE1 — PWM fault input B2 |
| Pin 79 | FLTA1/RE2 — PWM fault input A1 |
| Pin 80 | FLTB1/RE3 — PWM fault input B1 |
| Pin 81 | RP27/RC1 — Remappable I/O |
| Pin 82 | RP8/RC2 — Remappable I/O |
| Pin 83 | RP7/RC3 — Remappable I/O |
| Pin 84 | RP6/RC4 — Remappable I/O |
| Pin 85 | VDD — Digital supply 3.3 V |
| Pin 86 | VSS — Digital ground |
| Pin 87 | QEA/RA0 — QEI phase A (alt) |
| Pin 88 | QEB/RA1 — QEI phase B (alt) |
| Pin 89 | INDX/RA2 — QEI index (alt) |
| Pin 90 | HOME/RA3 — QEI home (alt) |
| Pin 91 | PWM4H/RD8 — PWM4 high (alt) |
| Pin 92 | PWM4L/RD9 — PWM4 low (alt) |
| Pin 93 | PWM5H/RD10 — PWM5 high (alt) |
| Pin 94 | PWM5L/RD11 — PWM5 low (alt) |
| Pin 95 | PWM6H/RD12 — PWM6 high (alt) |
| Pin 96 | PWM6L/RD13 — PWM6 low (alt) |
| Pin 97 | PWM7H/RD14 — PWM7 high (alt) |
| Pin 98 | PWM7L/RD15 — PWM7 low (alt) |
| Pin 99 | PGEC1/AN16/RC12 — ICSP clock 1 / AN16 |
| Pin 100 | PGED1/AN17/RC13 — ICSP data 1 / AN17 |
Typical Applications
DSPIC33FJ128MC510-I/PF is suitable for 7 applications: Three-Phase PMSM / BLDC Motor Control, Industrial Variable-Frequency Drives (VFDs), Power Conversion (PFC + DCDC), HVAC Blowers and Pumps, E-Bike and Light-EV Motor Controllers, Digital Audio and Sensor DSP, Robotics and CNC Spindle Drives.
Three-Phase PMSM / BLDC Motor Control
The DSPIC33FJ128MC510-I/PF runs field-oriented control of permanent-magnet synchronous and brushless DC motors at up to 40 MIPS. Its 8 PWM outputs with programmable dead time align to ADC conversions for precise torque and speed loops. The QEI module decodes incremental encoders, and 85 I/O pins interface to gate drivers, Hall sensors and resolver front-ends.
Recommended
Industrial Variable-Frequency Drives (VFDs)
For three-phase AC induction motor drives in the 1-2 kW class, the DSPIC33FJ128MC510-I/PF delivers scalar V/Hz and vector control. Its 32-channel 12-bit ADC samples motor currents simultaneously via dedicated S&H, and 128 KB Flash holds V/F curves, sensorless estimators and user menus. The 100-pin TQFP provides isolation-friendly I/O count.
Recommended
Power Conversion (PFC + DCDC)
The DSPIC33FJ128MC510-I/PF implements digital power factor correction and DCDC converter control loops. Its DSP engine runs average-current-mode PFC and current/voltage-mode DCDC at 20-50 kHz switching, while 128 KB Flash supports lookup tables and adaptive control algorithms. Hardware fault inputs shut down PWM within nanoseconds on over-current.
Recommended
HVAC Blowers and Pumps
Variable-speed HVAC blowers, circulation pumps and fans use the DSPIC33FJ128MC510-I/PF for sensorless or sensored motor control. The 128 KB Flash stores efficiency curves, soft-start profiles and Modbus/HVAC-protocol stacks. The -40 C to +85 C industrial range supports unconditioned enclosures in plant rooms.
Recommended
E-Bike and Light-EV Motor Controllers
FOC-based e-bike and light-electric-vehicle controllers benefit from the DSPIC33FJ128MC510-I/PF's DSP MAC and 8 PWM channels. Battery voltage up to 60 V is read via the 12-bit ADC on a divider, while torque, cadence and throttle inputs are sampled at 1 kS/s. 128 KB Flash stores assist-level maps, firmware update is supported via UART bootloader.
Recommended
Digital Audio and Sensor DSP
Audio effects, active noise cancellation and sensor fusion algorithms benefit from the dsPIC33F DSP engine's single-cycle MAC and zero-overhead loops. The DSPIC33FJ128MC510-I/PF runs FIR/IIR filters on microphone arrays or vibration sensors. 8 KB RAM supports 2 ms latency audio blocks at 48 kS/s.
Recommended
Robotics and CNC Spindle Drives
Robotic arm joints and CNC spindles use the DSPIC33FJ128MC510-I/PF as a stand-alone axis controller. The QEI reads encoder feedback while the 12-bit ADC monitors motor current and supply rail. CAN bus connects multiple axes to a central controller. 128 KB Flash hosts trajectory planners and PID loops.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ128MC510-I/PF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ128MC510A-I/PF | DSPIC33FJ128MC510A-E/PF | DSPIC33FJ128MC510A-I/PT | DSPIC33FJ64MC510-I/PF |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-pin TQFP (14x14, PF) | 100-pin TQFP (14x14, PF) - same | 100-pin TQFP (14x14, PF) - same | 100-pin TQFP (12x12, PT) - same pin count, smaller body | 100-pin TQFP (14x14, PF) - same |
| Program Memory | 128 KB Flash | 128 KB Flash | 128 KB Flash | 128 KB Flash | 64 KB Flash (-50%) |
| Data RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| CPU Performance | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Operating Temperature | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) | -40 C to +125 C (extended) | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) |
| Flash Endurance | 1,000 erase/write cycles | 10,000 erase/write cycles (+900%) | 10,000 erase/write cycles | 10,000 erase/write cycles | 1,000 erase/write cycles |
| Lifecycle Status | NRND | Active (recommended successor) | Active | Active | NRND |
| Motor Control PWM | 8 PWM outputs | 8 PWM outputs | 8 PWM outputs | 8 PWM outputs | 8 PWM outputs |
Key Differentiators
- Drop-in successor with 10x Flash endurance (vs DSPIC33FJ128MC510A-I/PF)
- Lower-memory variant in same footprint (vs DSPIC33FJ64MC510-I/PF)
- Integrated DSC core eliminates companion DSP (vs MCU + external DSP combination)
Design Notes
Estimated: DSPIC33FJ128MC510-I/PF core draw at 40 MIPS and 3.3 V is roughly 50 mA (0.165 W), with I/O sourcing adding another 20-60 mA depending on load. Place one 10 uF tantalum or ceramic bulk capacitor near each VDD/VSS pair (the device has five VDD pins distributed across the package) plus a 0.1 uF ceramic within 5 mm of every VDD. Use a single ferrite bead between the regulator and AVDD to keep digital switching noise out of the analog rail.
Route the AVSS pin as a dedicated analog ground return directly to the power-supply ground, not back to digital ground. Keep the AGND/AVDD trace lengths below 5 mm, and place the 0.1 uF + 10 uF decoupling capacitors within 5 mm of AVSS/AVDD. Analog input traces should not run parallel to PWM outputs to avoid switching noise coupling into the ADC samples.
The DSPIC33FJ128MC510-I/PF datasheet guarantees only 1,000 erase/write cycles on Flash, so EEPROM emulation via Flash must implement wear-leveling. For designs that re-flash parameters frequently (e.g., user-tunable drives), choose the 'A' revision (10,000 cycles) or migrate to dsPIC33EP. Also note the device has no on-chip EEPROM; persistent storage requires external EEPROM or wear-leveled Flash.
PWM outputs switching at 20 kHz with 1 ns edges can couple into adjacent analog inputs. Place PWM outputs on the package periphery away from the analog input pins (AN0-AN15), and use a ground trace between them. Add a 100 ohm series resistor and 100 pF shunt on each PWM output to slow edge rates to 50-100 ns if EMI is excessive.
Compliance Information
Industrial -I grade (-40 C to +85 C). Not AEC-Q100 qualified; Microchip offers AEC-Q100 variants in other families. RoHS and REACH compliant per Microchip product page; halogen-free status was not stated in the verified web data.
