DSPIC33CH128MP208-E/PT - Dual-Core DSC 100MHz 128KB Flash TQFP-80
MPN: DSPIC33CH128MP208-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.85 | $9.85 |
| 10 | $8.95 | $89.50 |
| 100 | $7.62 | $762.00 |
| 500 | $6.85 | $3,425.00 |
| 1,000 | $5.95 | $5,950.00 |
DSPIC33CH128MP208-E/PT Overview
Background: A Digital Signal Controller (DSC) is a hybrid class of microcontroller that combines a standard MCU's deterministic control peripherals with a DSP's MAC engine and barrel shifter for high-throughput numerical processing. Within the semiconductor taxonomy, a DSC sits between a microcontroller (MCU) and a digital signal processor (DSP); the dsPIC33CH family extends this by introducing dual-core heterogeneous operation, allowing partitioning of latency-sensitive tasks (digital power compensation loops, motor commutation) from application-layer code without an external companion MCU.
Key features include 16-bit data path with 24-bit instruction width, dual dsPIC33E cores, integrated high-resolution PWM (250 ps), CAN Flexible Data (CAN FD), up to 21 channels of 12-bit ADC at 3.5 Msps, configurable logic cells, and an AEC-Q100 qualified version for automotive deployment. The -E temperature grade supports -40 °C to +125 °C operation, suitable for underhood automotive and industrial environments.
Architecturally, the master core boots the slave core, shares peripherals through a mailbox and shared RAM scheme, and exposes the slave's I/O independently - effectively creating a zero-pin-count multi-chip system. This makes the part well suited to digital SMPS, LLC and PFC stages where the slave core can run a fixed-frequency control loop at deterministic latency while the master runs communication stacks (CAN FD, UART) and supervisory functions.
Typical applications include wireless power transmitters, server and telecom SMPS, EV on-board chargers, drone ESCs, BLDC/PMSM motor drives, and automotive sensor fusion. Designers select this part when code-partitioning improves deterministic loop performance beyond what single-core dsPIC33CK can deliver. A key design consideration is slave-core interrupt latency: the slave's vector base must be configured before release from master reset, and shared RAM regions require MPU setup to avoid coherency issues.
This page consolidates distributor pricing, pin-compatible drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet summary, giving engineers a single reference for sourcing and BOM risk analysis.
Drop-in alternatives for DSPIC33CH128MP208-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 DSPIC33CH128MP208-E/PT (same form factor and footprint) — differing in Package, Core Architecture, Operating Temperature, ADC, High-Resolution PWM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CH128MP206-I/PT
✅ Drop-In✓ In Stock
$5.45 / Unit
View Datasheet →DSPIC33CH128MP206T-I/PT
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$4.85 / Unit
View Datasheet →DSPIC33CH128MP208-I/PT
✅ Drop-In✓ In Stock
$5.84 / Unit
View Datasheet →DSPIC33CH128MP205-I/PT
✅ Drop-In✓ In Stock
$3.89 / Unit
View Datasheet →DSPIC33CH128MP508-E/PT
✅ Drop-In✓ In Stock
$3.4 / Unit
View Datasheet →DSPIC33CH256MP208-I/PT
✅ Drop-In✓ In Stock
$5.95 / Unit
View Datasheet →dsPIC33CK128MP208-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CH128MP208-E/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | Dual-core 16-bit dsPIC33E DSC (master + slave) |
| Maximum CPU Speed | 100 MHz (200 MIPS) |
| Program Memory (Flash) | 128 KB |
| Data RAM | 16 KB |
| Instruction Width | 24-bit |
| Operating Voltage (VDD) | 3.0 V to 3.6 V |
| Operating Temperature | -40 °C to +125 °C (E grade) |
| ADC | 12-bit, up to 3.5 Msps, up to 21 channels |
| High-Resolution PWM | Yes, 250 ps resolution |
| CAN | CAN FD |
| Package | 80-pin TQFP (12x12 mm, 0.50 mm pitch) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| AEC-Q100 | Not applicable (industrial/extended grade) |
DSPIC33CH128MP208-E/PT 80-pin tqfp (12x12 mm, 0.50 mm pitch) Pin Configuration Guide
Pin configuration for DSPIC33CH128MP208-E/PT (80-pin tqfp (12x12 mm, 0.50 mm pitch) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for DSPIC33CH128MP208-E/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CH128MP208-E/PT is suitable for 6 applications: Wireless Power Transmitter, Digital PFC and LLC Power Supply, EV On-Board Charger, BLDC/PMSM Motor Drive, Drone Electronic Speed Controller (ESC), Automotive Sensor Fusion ECU.
Wireless Power Transmitter
The DSPIC33CH128MP208-E/PT's dual-core architecture is purpose-built for wireless power transmitters where a deterministic slave loop must regulate resonant tank frequency while the master handles Qi protocol negotiation and safety monitoring. The 250 ps high-resolution PWM drives the half-bridge at typical 100-205 kHz Qi frequencies with sub-1% duty-cycle resolution, while the slave core maintains zero-crossing detection and foreign-object detection (FOD) within microsecond-level latency. Compared to a single-core MCU, the master can run BLE or NFC communication stacks for the Qi authentication protocol without breaking the slave's control loop timing. The 128 KB Flash fits the full Qi v1.3.x authentication firmware, and the 12-bit 3.5 Msps ADC samples both primary current and secondary-received telemetry signals for closed-loop efficiency optimization above 90%.
Recommended
Digital PFC and LLC Power Supply
In server and telecom AC-DC power supplies, the DSPIC33CH128MP208-E/PT drives both the PFC stage and the LLC resonant converter from a single chip. The slave core runs the PFC current loop at 50-100 kHz with deterministic 1-2 µs interrupt latency, while the master supervises the LLC burst-mode operation, handles PMBus or I2C telemetry, and executes housekeeping such as OTP/OVP fault handling. The high-resolution PWM (250 ps) eliminates the need for analog PWM-controller ICs and enables digital compensation of the power stage, reducing BOM count by 20-30%. The 12-bit ADC at 3.5 Msps samples both PFC input current and LLC resonant capacitor voltage simultaneously, while CAN FD provides high-speed telemetry to the system supervisor for adaptive power management.
Recommended
EV On-Board Charger
For EV onboard chargers (OBC) rated 6.6-22 kW, the DSPIC33CH128MP208-E/PT handles interleaved PFC and isolated DC-DC conversion in a single controller. The slave core's deterministic interrupt latency is essential for tight CCM PFC current loop control at 100 kHz switching, while the master runs CAN FD stack (ISO 11898-1:2015) for UDS diagnostics and high-voltage interlock loop (HVIL) management. The AEC-Q100 qualified -I/PT variant is the recommended choice for production EV designs, while the -E/PT shown here serves industrial-grade OBC prototypes. The high-resolution PWM drives GaN or SiC FETs at up to 500 kHz with sub-nanosecond dead-time control, critical for hard-switched totem-pole PFC achieving >98% efficiency.
Recommended
BLDC/PMSM Motor Drive
Field-oriented control (FOC) of BLDC and PMSM motors benefits from the DSPIC33CH128MP208-E/PT dual-core architecture: the slave core runs the FOC inner current loop at 20-50 kHz with deterministic sub-µs latency, while the master runs the outer speed/torque loop, position sensor decoding (Resolver, Sin/Cos encoder, or Hall), and CANopen or EtherCAT communication. This partitioning eliminates the typical 5-10% loop-time jitter seen when a single-core MCU handles both loops, improving torque ripple and acoustic performance. The 250 ps PWM resolution delivers 16 kHz switching frequency with 0.025% duty-cycle resolution, supporting ultra-smooth motor commutation for robotics, CNC, and eMobility applications up to 10 kW.
Recommended
Drone Electronic Speed Controller (ESC)
High-performance drone ESCs for cinematography and racing drones leverage the DSPIC33CH128MP208-E/PT to drive BLDC motors at 24-48 kHz switching frequency with ultra-low latency current control. The slave core executes the FOC loop within 5 µs, while the master runs DShot/OneShot protocol parsing, telemetry back-channel (BLHeli_32 style), and battery monitoring. The 100 MHz/200 MIPS throughput handles 24 kHz motor switching with margin for sensor-fusion input from external IMUs over SPI. The 80-pin TQFP package fits compact 30x30 mm ESC PCBs, and the -E/PT extended temperature grade handles high-altitude or high-power density environments where ambient temperatures reach +85 °C at full throttle.
Recommended
Automotive Sensor Fusion ECU
In automotive sensor-fusion ECUs that aggregate radar, IMU, and CAN FD bus data, the DSPIC33CH128MP208-E/PT offers sufficient MIPS for sensor preprocessing plus deterministic CAN FD message handling. The slave core dedicates to a fixed-cycle CAN FD RX/TX scheduler with 250 µs deterministic latency, while the master runs a Kalman filter fusing radar tracks and IMU data for ADAS-level object tracking. The 128 KB Flash fits a moderate sensor-fusion stack (excluding full ADAS, which needs larger Cortex-A). The -E/PT extended temperature grade is suited for chassis-area ECUs and sensor-hub designs; for safety-critical ASIL-rated ECUs the AEC-Q100 -I/PT variant is required.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CH128MP208-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CH128MP206-I/PT | DSPIC33CH128MP208-I/PT | DSPIC33CH128MP508-E/PT | DSPIC33CH256MP208-I/PT | dsPIC33CK128MP208-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 80-pin TQFP (12x12 mm) | 64-pin TQFP (12x12 mm) | 80-pin TQFP (12x12 mm) - same | 80-pin TQFP (12x12 mm) - same | 80-pin TQFP (12x12 mm) - same | 80-pin TQFP (12x12 mm) - same |
| Core Count | 2 (master + slave) | 2 (master + slave) | 2 (master + slave) | 2 (master + slave) | 2 (master + slave) | 1 (single core) |
| Maximum CPU Speed | 100 MHz (200 MIPS) | 100 MHz (200 MIPS) | 100 MHz (200 MIPS) | 100 MHz (200 MIPS) | 100 MHz (200 MIPS) | 100 MHz (100 MIPS) |
| Flash Memory | 128 KB | 128 KB | 128 KB | 512 KB | 256 KB | 128 KB |
| RAM | 16 KB | 16 KB | 16 KB | 48 KB | 32 KB | 16 KB |
| Temperature Grade | -40 °C to +125 °C (E grade) | -40 °C to +85 °C (I grade) | -40 °C to +85 °C (I grade, AEC-Q100) | -40 °C to +125 °C (E grade) | -40 °C to +85 °C (I grade) | -40 °C to +85 °C (I grade) |
| High-Resolution PWM | Yes (250 ps) | Yes (250 ps) | Yes (250 ps) | Yes (250 ps) | Yes (250 ps) | Yes (250 ps) |
| CAN FD | Yes | Yes | Yes | Yes | Yes | Yes |
| Typical 1k-unit Price | $5.95 USD | $5.40 USD | $6.50 USD | $8.20 USD | $7.10 USD | $4.85 USD |
Key Differentiators
- Dedicated slave core for deterministic control loops (vs dsPIC33CK128MP208-I/PT)
- 128 KB Flash in the standard -E/PT variant (vs DSPIC33CH64MP208-E/PT)
- Extended -40 °C to +125 °C temperature grade (vs DSPIC33CH128MP208-I/PT)
Design Notes
The slave core in the dsPIC33CH must be explicitly configured before release from master reset. Configure the slave's vector base address, MPU regions for shared RAM, and clock source in master firmware before triggering slave run. Failing to set up the slave MPU can cause silent RAM coherency bugs between master and slave writes. Use the master APIs from the MPLAB XC-DSC compiler peripheral library for slave bring-up rather than direct register writes.
Estimated: At full 100 MHz dual-core operation with both cores drawing 35 mA each and 12-bit ADC + HRPWM active, the VDD current approaches 75 mA at 3.3 V, yielding 0.25 W dissipation. The TQFP-80 package thermal resistance theta_JA is approximately 50 °C/W on a 2-layer JEDEC EIA/JESD51 test board with minimum copper pours, giving a 12.5 °C junction rise above ambient - well within limits. For industrial operation at +85 °C ambient, this is acceptable; for +125 °C automotive ambient, expand ground copper pour to at least 2 square inches to lower theta_JA below 30 °C/W.
Place the 0.1 µF and 10 µF VDD decoupling capacitors within 3 mm of the respective power pins, with the smaller cap closest to the package. The dsPIC33CH is sensitive to analog VDD noise on AVDD - route AVDD from the main 3.3 V regulator output through an LC pi-filter (10 µH + 2x 10 µF) to achieve the ADC SNR specified in the datasheet. For high-resolution PWM applications, keep the PWM output traces short and length-matched to minimize skew in multi-phase power stages.
The slave core's deterministic interrupt latency is the headline feature of the dsPIC33CH, but it requires that the slave's NVIC priority grouping is configured before any master interrupt is enabled on the same priority level. If master interrupts preempt the slave's hard-real-time loop, the slave latency advantage is lost. Use dedicated NVIC priority levels (priority 0 for slave, priority 1-7 for master tasks) and disable nesting at runtime.
Compliance Information
RoHS and REACH compliant per Microchip product page. The -E/PT is the extended-temperature grade but is not AEC-Q100 qualified - choose -I/PT or the automotive temperature variant for production automotive applications. Lead-free and halogen-free packaging confirmed by Microchip environmental certification.
