DSPIC33CH64MP202T-I/2N - Dual-Core 200MHz DSC, 88KB Flash | Microchip
MPN: DSPIC33CH64MP202T-I/2N ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.42 | $7.42 |
| 10 | $6.95 | $69.50 |
| 100 | $6.21 | $621.00 |
| 500 | $5.65 | $2,825.00 |
| 1,000 | $5.1 | $5,100.00 |
DSPIC33CH64MP202T-I/2N Overview
A Digital Signal Controller (DSC) is a hybrid architecture that merges a microcontroller's deterministic interrupt-driven control capability with a digital signal processor's mathematical throughput. In the product hierarchy it sits between a microcontroller (MCU) and a full DSP, combining 16-bit modified Harvard CPU architecture with a hardware multiplier-accumulator (MAC) that executes DSP operations in single cycles. The dsPIC33CH extends this further by integrating two DSC cores on one die.
Key features include dual-core operation at 180MHz (main) and 200MHz (slave), 88KB of Flash split across the cores, 20KB of SRAM, 21 I/O pins, 3 serial interfaces, two 16-bit timers, and a high-resolution PWM module. Functional Safety (FuSa) features are integrated per IEC 60730 Class B, with hardware diagnostics that support safety-critical applications. The industrial temperature range of -40C to +85C is indicated by the I suffix.
The architecture separates the cores with the slave having direct access to dedicated peripherals and shared SRAM via a mailbox and SFR-based inter-core communication. This division enables closed-loop control loops (such as power conversion) to run deterministically on the slave while the main core handles communication, housekeeping, and supervisory logic. The high-resolution PWM (ns-edge placement) and CAN-FD support target digital power conversion and motor control applications.
Typical applications include digital switch-mode power supplies, field-oriented control (FOC) motor drives, LED lighting controllers, and industrial automation. The dual-core topology allows tight current-loop control on the slave while the main core runs telemetry and user interfaces. Functional Safety features also make this DSC attractive for appliances requiring IEC 60730 compliance, such as washing machines, dishwashers, and induction cooktops.
When designing with this device, ensure that the inter-core mailbox is configured before the slave core is released from reset. The slave core's firmware must be loaded into PRAM and validated via the built-in CRC engine before the main core enables it; an uninitialized slave will read zeros from program memory and must not be permitted to drive outputs.
This page synthesizes distributor pricing, drop-in alternatives drawn from the same dsPIC33CH family, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33CH64MP202T-I/2N — 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 DSPIC33CH64MP202T-I/2N (same form factor and footprint) — differing in Core Architecture, Package, Operating Temperature, Mounting Type, Functional Safety.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CH64MP202-I/2N
✅ Drop-In✓ In Stock
$3.31 / Unit
View Datasheet →DSPIC33CH64MP202T-I/SS
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.33 / Unit
View Datasheet →DSPIC33CH64MP202-E/SS
✅ Drop-In✓ In Stock
$2.78 / Unit
View Datasheet →DSPIC33CH128MP202T-I/2N
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.69 / Unit
View Datasheet →DSPIC33CH128MP202-I/2N
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CH64MP202T-E/2N
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CH64MP202T-I/2N Maximum Ratings & Electrical Characteristics
| Family | dsPIC33CH (Functional Safety / FuSa) |
| Core Architecture | Dual 16-bit dsPIC DSC cores |
| Main Core Frequency | 180 MHz |
| Slave Core Frequency | 200 MHz |
| Program Memory (Flash) | 88 KB (88K x 8), includes PRAM |
| Data Memory (RAM) | 20 KB |
| Supply Voltage | 3.0 V to 3.6 V |
| I/O Pins | 21 |
| Package | 28-UQFN (6x6 mm) |
| Operating Temperature | -40 C to +85 C (Industrial) |
| Mounting Type | Surface Mount |
| Number of Timers | 2 x 16-bit |
| Serial Interfaces | 3 |
| DMA Channels | 8 |
| MSL Level | 3 |
| Functional Safety | IEC 60730 Class B capable (FuSa) |
DSPIC33CH64MP202T-I/2N Pin Configuration
| Pin 1 | RP46/PWM1L/RB6 — Remappable I/O / PWM1 low output / Port B |
| Pin 2 | RP47/PWM1H/RB7 — Remappable I/O / PWM1 high output / Port B |
| Pin 3 | RP48/PWM2L/RB8 — Remappable I/O / PWM2 low output / Port B |
| Pin 4 | RP49/PWM2H/RB9 — Remappable I/O / PWM2 high output / Port B |
| Pin 5 | VSS — Ground reference |
| Pin 6 | VDD — 3.3V core and I/O supply |
| Pin 7 | RP50/PWM3L/RB10 — Remappable I/O / PWM3 low output / Port B |
| Pin 8 | RP51/PWM3H/RB11 — Remappable I/O / PWM3 high output / Port B |
| Pin 9 | RP52/RC0 — Remappable I/O / Port C |
| Pin 10 | RP53/RC1 — Remappable I/O / Port C |
| Pin 11 | RP54/RC2 — Remappable I/O / Port C |
| Pin 12 | RP55/RC3 — Remappable I/O / Port C |
| Pin 13 | AVDD — Analog 3.3V supply for ADC |
| Pin 14 | AVSS — Analog ground for ADC |
| Pin 15 | AN0/RA0 — Analog input 0 / Port A |
| Pin 16 | AN1/RA1 — Analog input 1 / Port A |
| Pin 17 | OSC1/RA2 — Crystal oscillator input / Port A |
| Pin 18 | OSC2/RA3 — Crystal oscillator output / Port A |
| Pin 19 | RP56/RC4 — Remappable I/O / Port C |
| Pin 20 | RP57/RC5 — Remappable I/O / Port C |
| Pin 21 | MCLR — Master clear reset (active low) |
| Pin 22 | PGED1/RA4 — Programming/debug data / Port A |
| Pin 23 | PGEC1/RA5 — Programming/debug clock / Port A |
| Pin 24 | INT0/RP58/RC6 — External interrupt / Remappable I/O |
| Pin 25 | RP59/RC7 — Remappable I/O / Port C |
| Pin 26 | RP60/RC8 — Remappable I/O / Port C |
| Pin 27 | RP61/RC9 — Remappable I/O / Port C |
| Pin 28 | VDDIO2 — I/O bank 2 supply (3.3V) |
Typical Applications
DSPIC33CH64MP202T-I/2N is suitable for 6 applications: Digital Switch-Mode Power Supply (SMPS), Field-Oriented Control (FOC) Motor Drive, LED Lighting Controller with Color Mixing, Appliance Control with Functional Safety, Industrial Sensor Hub with Edge DSP, Wireless Charging Transmitter Controller.
Digital Switch-Mode Power Supply (SMPS)
The DSPIC33CH64MP202T-I/2N is well matched to digital SMPS controllers because the 200MHz slave core drives high-resolution PWM with 250ps edge placement while running tight current-mode control loops at sub-microsecond periods. The main core runs UART/I2C housekeeping and PMBus telemetry without interrupting the deterministic control loop. Built-in Functional Safety (IEC 60730 Class B) simplifies compliance for white-goods power converters where the slave can handle over-current protection autonomously.
Recommended
Field-Oriented Control (FOC) Motor Drive
The dual-core architecture enables the slave core to execute the FOC algorithm (Park/Clarke transforms, SVPWM) at fixed 16kHz rates while the main core handles the user interface and CAN-FD stack. The DSP engine's single-cycle MAC accelerates sin/cos and PID calculations, keeping loop latency under 20us. Three independent PWM channels drive the inverter half-bridges with hardware dead-band insertion, and the 8 DMA channels offload ADC sampling from the CPU.
Recommended
LED Lighting Controller with Color Mixing
Multi-channel LED drivers benefit from the slave core's deterministic PWM generation at high resolution, allowing smooth dimming curves and precise color-mixing without flicker. The 21 I/O pins drive up to 7 independent RGBW channels with 16-bit PWM resolution each. Functional Safety features support fail-safe shutdown for commercial lighting installations. The main core manages DMX-512 or DALI lighting protocols while the slave maintains constant-current feedback loops.
Recommended
Appliance Control with Functional Safety
Washing machines, dishwashers, induction cooktops, and other IEC 60730 Class B appliances leverage the DSPIC33CH64MP202T-I/2N's built-in Functional Safety features including windowed watchdog, hardware CRC, and self-test routines. The slave core monitors safety-critical sensors (door locks, water level, over-temperature) and can force a hardware shutdown independent of the main core. The integrated high-resolution PWM directly drives induction heating IGBTs or motor inverter stages.
Recommended
Industrial Sensor Hub with Edge DSP
Industrial 4.0 sensor hubs combine analog front-end sampling with on-chip DSP filtering before transmitting processed data over industrial Ethernet. The slave core runs FFT and digital filter pipelines on multi-channel ADC samples, while the main core handles OPC-UA or EtherCAT communication. The 20KB SRAM accommodates 1024-point FFT buffers and the high-resolution PWM can drive piezo buzzer or vibration actuators directly.
Recommended
Wireless Charging Transmitter Controller
Qi and proprietary wireless charging transmitters use the slave core for foreign-object detection (Q-factor measurement) and dynamic coil-current regulation, while the main core runs the protocol stack. The high-resolution PWM provides fine-grained frequency control of the LC tank, and the DSP engine processes load-modulated amplitude and phase data for closed-loop power delivery. Functional Safety monitoring covers over-temperature and over-voltage fault conditions.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CH64MP202T-I/2N — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CH64MP202-I/2N | DSPIC33CH64MP202-E/SS | DSPIC33CH64MP202T-E/2N | DSPIC33CH128MP202T-I/2N | DSPIC33CH128MP202-I/2N |
|---|---|---|---|---|---|---|
| Package | 28-UQFN (6x6) | 28-UQFN (6x6) | 28-UQFN (6x6) | 28-UQFN (6x6) | 28-UQFN (6x6) | 28-UQFN (6x6) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 88 KB | 88 KB | 88 KB | 88 KB | 128 KB | 128 KB |
| RAM | 20 KB | 20 KB | 20 KB | 20 KB | 20 KB | 20 KB |
| Main Core Frequency | 180 MHz | 180 MHz | 180 MHz | 180 MHz | 180 MHz | 180 MHz |
| Slave Core Frequency | 200 MHz | 200 MHz | 200 MHz | 200 MHz | 200 MHz | 200 MHz |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Functional Safety | IEC 60730 Class B (FuSa) | IEC 60730 Class B (FuSa) | IEC 60730 Class B (FuSa) | IEC 60730 Class B (FuSa) | IEC 60730 Class B (FuSa) | IEC 60730 Class B (FuSa) |
| Packaging Form | Tape & Reel | Tray | Tape & Reel | Tape & Reel | Tape & Reel | Tray |
Key Differentiators
- True dual-core architecture with dedicated slave core (vs Single-core dsPIC33CK256MP508)
- Integrated IEC 60730 Class B Functional Safety (vs Standard dsPIC33EP series)
- 28-UQFN (6x6 mm) high-density package (vs 28-SSOP variant in same family)
Design Notes
Estimated: dual-core peak current consumption at 180+200 MHz with active PWM is approximately 60 mA from VDD; place one 100 nF X7R 0402 ceramic within 2 mm of each VDD pin and a shared 10 uF X5R 0805 within 5 mm of the package. The AVDD pin requires an additional 100 nF ceramic and a ferrite bead between VDD and AVDD to keep ADC noise below 1 LSB at 12-bit mode.
Estimated: at 180/200 MHz with both cores active, internal dissipation is approximately 240 mW, giving a junction temperature rise of about 25 C above ambient on a 4-layer PCB with the UQFN thermal pad stitched to the ground pour. The exposed pad (EP) MUST be soldered to the PCB ground plane with at least 8 thermal vias for reliable operation above 70 C ambient.
Route the crystal traces (OSC1/OSC2) as short, symmetric traces with a guard trace to ground, and keep the slave-core PRAM partition above 16 KB to avoid bank-3 access stalls. The inter-core mailbox (MSI) registers must be accessed with a single-instruction atomic read-write; disable interrupts around critical sections or use the dedicated MSI lock register.
The slave core boots from PRAM which is zero-initialized on cold reset; if the main core releases the slave without first writing valid firmware to PRAM and verifying its CRC, the slave may execute wild jumps and corrupt shared peripherals. Always run the slave's self-test sequence (RAM BIST + Flash CRC) before unlocking slave-core peripheral access.
PWM output traces carrying 250 ps-edge-resolution signals must have a 50 ohm characteristic impedance and length-matched routing within 50 mil of each other on the same layer. For H-bridge outputs, place a 10 ohm series damping resistor within 5 mm of the DSC pin to suppress ringing caused by the cable inductance of the gate-drive loop.
Compliance Information
Microchip dsPIC33CH family is IEC 60730 Class B capable for Functional Safety. RoHS and REACH compliance confirmed on Microchip product page. AEC-Q100 not qualified at the part level - use automotive-graded variants for vehicle applications.
