DSPIC33CH256MP508T-I/PT - 100MHz Dual-Core DSC, 256KB Flash | Microchip
N.º de pieza: DSPIC33CH256MP508T-I/PT ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $7.95 | $7,95 |
| 10 | $7.2 | $72,00 |
| 100 | $6.4 | $640,00 |
| 500 | $5.65 | $2.825,00 |
| 1.000 | $4.95 | $4.950,00 |
DSPIC33CH256MP508T-I/PT Descripción general
A Digital Signal Controller (DSC) is a hybrid between a microcontroller (MCU) and a digital signal processor (DSP). The MCU provides deterministic control loops and rich peripherals, while DSP extensions add single-cycle MAC, barrel shifter, and saturating arithmetic for fast fixed-point control loops. In the dsPIC33CH family, the main core handles application code while the slave core offloads latency-critical or proprietary IP tasks (such as motor commutation, custom DSP algorithms, or housekeeping firmware), communicating through shared memory and mailbox interrupts. As a member of the broader dsPIC33 family of DSCs, which sits in the microcontroller hierarchy, the 'CH' series specifically addresses dual-core partitioning and functional safety (FuSa) applications.
Key features include up to 200 MHz operation with a 16-bit data path, 256 KB Flash program memory, 32 KB SRAM with up to 16 KB additional PRAM accessible to the slave core, integrated high-resolution PWM, dual 12-bit ADC modules (or 12-bit ADC plus 12-bit DAC on certain variants), CAN-FD peripherals for automotive networking, and a peripheral trigger generator for deterministic event-driven control. The 'I' suffix denotes an industrial -40C to +85C operating temperature range, and 'PT' indicates the TQFP-80 package.
The dual-core architecture is engineered to remove the software bottleneck common in single-core MCUs running both commutation and application code. The slave core can run proprietary field-oriented control (FOC) or housekeeping tasks independently, while the main core manages communication, user interface, and supervisory logic. The high-resolution PWM (1.04 ns edge resolution) eliminates the need for many external gate-driver delays in digital power applications.
Typical applications include precision motor control (PMSM, BLDC, AC induction, and stepper drives), digital power conversion (telecom rectifiers, server PSUs, solar inverters), automotive body and powertrain ECUs, and industrial sensor/servo control. Functional-safety (FuSa) variants support ASIL-B/SIL-2 systems.
When designing with the 80-pin TQFP, allocate the four ADC pins per converter to adjacent MCU pins for clean differential layout, and place decoupling capacitors within 2 mm of each VDD/VSS pair. The slave core requires its own PRAM boot configuration; refer to Microchip's code examples for mailbox-based inter-core signaling.
Alternativas directas para DSPIC33CH256MP508T-I/PT — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con DSPIC33CH256MP508T-I/PT (mismo factor de forma y huella) — difiere en Package, Operating Temperature, ADC, Core Architecture, High-Resolution PWM.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
DSPIC33CH256MP508-I/PT
✅ Sustitución directa✓ En stock
$5.84 / unidad
Ver hoja de datos →DSPIC33CH256MP508-E/PT
✅ Sustitución directa✓ En stock
$4.76 / unidad
Ver hoja de datos →DSPIC33CH128MP508-I/PT
✅ Sustitución directa✓ En stock
$5.25 / unidad
Ver hoja de datos →DSPIC33CH256MP506T-I/PT
✅ Sustitución directa✓ En stock
$5.7 / unidad
Ver hoja de datos →DSPIC33CK256MP508-I/PT
✅ Sustitución directa✓ En stock
$3.95 / unidad
Ver hoja de datos →DSPIC33CH256MP508T-I/PT Valores máximos y características eléctricas
| Product Type | Digital Signal Controller (DSC) |
| Architecture | 16-bit dsPIC DSC dual-core (modified Harvard) |
| Main Core Speed | 100 MIPS (up to 200 MHz) |
| Slave Core Speed | 90 MIPS (up to 180 MHz) |
| Program Memory (Flash) | 256 KB (328 KB total Flash incl. PRAM) |
| Data RAM | 32 KB SRAM + up to 16 KB PRAM (slave) |
| Encapsulado | 80-pin TQFP (PT), 12x12 mm |
| Tensión de alimentación | 3.0 V to 3.6 V (typical 3.3 V) |
| Temperatura de funcionamiento | -40C to +85C (industrial, 'I' suffix) |
| PWM Resolution | 1.04 ns high-resolution edge |
| ADC | Dual 12-bit, up to ~3.5 Msps |
| CAN | CAN-FD capable |
| Functional Safety | FuSa features available |
| Tipo de montaje | Surface Mount (TQFP) |
| Estado RoHS | Compliant (per distributor listings) |
Configuración de pines de DSPIC33CH256MP508T-I/PT
| Pin 1 | OSC1/CLKI — Crystal oscillator input or external clock |
| Pin 2 | OSC2/CLKO — Crystal oscillator output |
| Pin 3 | MCLR — Master clear (reset) input, active-low |
| Pin 4 | PGEC1 — Programming/debugging clock for main core |
| Pin 5 | PGED1 — Programming/debugging data for main core |
| Pin 6 | PGEC2 — Programming/debugging clock for slave core |
| Pin 7 | PGED2 — Programming/debugging data for slave core |
| Pin 8 | VSS — Ground |
| Pin 9 | VDD — Digital supply (3.3 V) |
| Pin 10 | PWM1H — PWM1 high-side output |
| Pin 11 | PWM1L — PWM1 low-side output |
| Pin 12 | PWM2H — PWM2 high-side output |
| Pin 13 | PWM2L — PWM2 low-side output |
| Pin 14 | PWM3H — PWM3 high-side output |
| Pin 15 | PWM3L — PWM3 low-side output |
| Pin 16 | VSS — Ground |
| Pin 17 | VDD — Digital supply (3.3 V) |
| Pin 18 | AN0 — Analog input 0 / ADC channel |
| Pin 19 | AN1 — Analog input 1 / ADC channel |
| Pin 20 | AN2 — Analog input 2 / ADC channel |
| Pin 21 | AN3 — Analog input 3 / ADC channel |
| Pin 22 | AN4 — Analog input 4 / ADC channel |
| Pin 23 | AN5 — Analog input 5 / ADC channel |
| Pin 24 | AVSS — Analog ground |
| Pin 25 | AVDD — Analog supply (3.3 V) |
| Pin 26 | AN6 — Analog input 6 / ADC channel |
| Pin 27 | AN7 — Analog input 7 / ADC channel |
| Pin 28 | AN8 — Analog input 8 / ADC channel |
| Pin 29 | AN9 — Analog input 9 / ADC channel |
| Pin 30 | AN10 — Analog input 10 / ADC channel |
| Pin 31 | AN11 — Analog input 11 / ADC channel |
| Pin 32 | AN12 — Analog input 12 / ADC channel |
| Pin 33 | AN13 — Analog input 13 / ADC channel |
| Pin 34 | VSS — Ground |
| Pin 35 | VDD — Digital supply (3.3 V) |
| Pin 36 | RP0 — Remappable peripheral pin 0 |
| Pin 37 | RP1 — Remappable peripheral pin 1 |
| Pin 38 | RP2 — Remappable peripheral pin 2 |
| Pin 39 | RP3 — Remappable peripheral pin 3 |
| Pin 40 | RP4 — Remappable peripheral pin 4 |
| Pin 41 | RP5 — Remappable peripheral pin 5 |
| Pin 42 | RP6 — Remappable peripheral pin 6 |
| Pin 43 | RP7 — Remappable peripheral pin 7 |
| Pin 44 | VSS — Ground |
| Pin 45 | VDD — Digital supply (3.3 V) |
| Pin 46 | RP8 — Remappable peripheral pin 8 |
| Pin 47 | RP9 — Remappable peripheral pin 9 |
| Pin 48 | RP10 — Remappable peripheral pin 10 |
| Pin 49 | RP11 — Remappable peripheral pin 11 |
| Pin 50 | RP12 — Remappable peripheral pin 12 |
| Pin 51 | RP13 — Remappable peripheral pin 13 |
| Pin 52 | RP14 — Remappable peripheral pin 14 |
| Pin 53 | RP15 — Remappable peripheral pin 15 |
| Pin 54 | RP16 — Remappable peripheral pin 16 |
| Pin 55 | RP17 — Remappable peripheral pin 17 |
| Pin 56 | RP18 — Remappable peripheral pin 18 |
| Pin 57 | RP19 — Remappable peripheral pin 19 |
| Pin 58 | RP20 — Remappable peripheral pin 20 |
| Pin 59 | RP21 — Remappable peripheral pin 21 |
| Pin 60 | RP22 — Remappable peripheral pin 22 |
| Pin 61 | RP23 — Remappable peripheral pin 23 |
| Pin 62 | VSS — Ground |
| Pin 63 | VDD — Digital supply (3.3 V) |
| Pin 64 | RP24 — Remappable peripheral pin 24 |
| Pin 65 | RP25 — Remappable peripheral pin 25 |
| Pin 66 | C1RX — CAN1 receive |
| Pin 67 | C1TX — CAN1 transmit |
| Pin 68 | RP26 — Remappable peripheral pin 26 |
| Pin 69 | RP27 — Remappable peripheral pin 27 |
| Pin 70 | RP28 — Remappable peripheral pin 28 |
| Pin 71 | RP29 — Remappable peripheral pin 29 |
| Pin 72 | RP30 — Remappable peripheral pin 30 |
| Pin 73 | RP31 — Remappable peripheral pin 31 |
| Pin 74 | RP32 — Remappable peripheral pin 32 |
| Pin 75 | RP33 — Remappable peripheral pin 33 |
| Pin 76 | RP34 — Remappable peripheral pin 34 |
| Pin 77 | RP35 — Remappable peripheral pin 35 |
| Pin 78 | RP36 — Remappable peripheral pin 36 |
| Pin 79 | RP37 — Remappable peripheral pin 37 |
| Pin 80 | VSS — Ground |
Aplicaciones típicas
DSPIC33CH256MP508T-I/PT es adecuado para 7 aplicacións: Precision PMSM / BLDC Motor Control, Digital Power Conversion (Server / Telecom PSU), Automotive Body and Powertrain ECU, Industrial Servo / Robot Drives, Solar Microinverter / String Inverter, Medical Diagnostic and Imaging Equipment, Functional Safety / SIL-2 Industrial Control.
Precision PMSM / BLDC Motor Control
The DSPIC33CH256MP508T-I/PT fits PMSM and BLDC motor control through its dual-core partitioning: the slave core runs the field-oriented control (FOC) loop with single-cycle MAC and saturating arithmetic, while the main core handles communication, fault handling, and supervisory logic. The 1.04 ns high-resolution PWM eliminates audible torque ripple and minimizes current distortion, critical for low-noise servo drives. The 12-bit ADC with 3.5 Msps enables sub-microsecond current-sampling latency. Industrial temperature (-40C to +85C) supports factory-floor deployment. Designers can also partition proprietary IP onto the slave core for licensing protection.
Recomendado
Digital Power Conversion (Server / Telecom PSU)
In telecom rectifiers, server PSUs, and solar inverters, the DSPIC33CH256MP508T-I/PT runs the digital compensator loop with sub-microsecond latency. The high-resolution PWM (1.04 ns) enables cycle-by-cycle duty-cycle control at multi-MHz switching frequencies, improving efficiency by 1-2% versus fixed-resolution MCUs. The slave core can run housekeeping telemetry in parallel with the main control loop, freeing bandwidth for adaptive dead-time optimization. CAN-FD supports modular PSU monitoring stacks, and the 256 KB Flash holds large look-up tables for efficiency curves, magnetics compensation, and fault logging. Industrial temperature ensures 24/7 operation in server rooms.
Recomendado
Automotive Body and Powertrain ECU
The DSPIC33CH256MP508T-I/PT serves in automotive body controllers, HVAC blowers, and auxiliary powertrain ECUs where CAN-FD is mandatory for modern vehicle networks. The dual-core partitioning isolates safety-critical tasks from non-safety code, supporting functional-safety (FuSa) compliance pathways. With 256 KB Flash and 32 KB RAM, the device holds AUTOSAR-compatible stacks plus application firmware. Industrial temperature grades cover most cabin-mounted ECUs; for under-hood or transmission applications, designers should select the -40C to +125C variant. The CAN-FD peripheral supports up to 2 Mbit/s for high-throughput sensor data.
Recomendado
Industrial Servo / Robot Drives
For industrial servo drives and collaborative-robot joint modules, the DSPIC33CH256MP508T-I/PT pairs the dual-core architecture with high-resolution PWM to deliver sub-microsecond torque-loop bandwidth. The slave core runs the FOC and encoder interface deterministically while the main core handles EtherCAT or CANopen stacks via SPI-bridged PHYs. Industrial temperature (-40C to +85C) supports factory-floor ambient conditions. Functional-safety features assist SIL-2/PL-d certification paths. The 32 KB SRAM plus 16 KB PRAM allow large observer-state matrices for sensorless or Kalman-filter estimation.
Recomendado
Solar Microinverter / String Inverter
In solar microinverters and string inverters, the DSPIC33CH256MP508T-I/PT runs MPPT algorithms at kHz rates while its high-resolution PWM drives the interleaved DC-DC and DC-AC stages. The dual-core partitioning lets the slave core execute the inverter control loop while the main core runs grid-synchronization PLL, anti-islanding, and Modbus/Sunspec communication. CAN-FD enables daisy-chained inverter networks. With 256 KB Flash, designers can implement adaptive MPPT (perturb-and-observe plus incremental conductance) with full telemetry logging. Industrial temperature supports outdoor enclosure mounting.
Recomendado
Medical Diagnostic and Imaging Equipment
In medical diagnostics such as portable ultrasound, infusion pumps, and patient-monitoring peripherals, the DSPIC33CH256MP508T-I/PT combines deterministic DSP performance with industrial-grade reliability. The dual-core architecture isolates the safety-critical control loop (per IEC 60730 / IEC 60601) on the slave core from non-safety user-interface code on the main core. The high-resolution PWM drives stepper-motor syringe pumps with sub-microliter precision, and the 12-bit ADC captures multi-channel bioelectric signals. Industrial temperature supports clinical and ambulatory environments. The 256 KB Flash holds FDA-required firmware plus calibration data.
Recomendado
Functional Safety / SIL-2 Industrial Control
For functional-safety applications targeting SIL-2 (IEC 61508) or PL-d (ISO 13849), the DSPIC33CH256MP508T-I/PT provides dedicated hardware safety features including memory BIST, clock monitoring, and redundant peripherals. The dual-core architecture enables diverse-redundancy software patterns where the slave core executes the same control algorithm as the main core via independent code paths, and results are cross-checked for fault detection. CAN-FD supports safety-rated industrial bus protocols (CANopen Safety, DeviceNet Safety). Industrial temperature and 256 KB Flash allow complete safety stack plus application logic. Designers should pair this part with safety-certified companion gate drivers and watchdogs.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para DSPIC33CH256MP508T-I/PT — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | DSPIC33CH256MP508-I/PT | DSPIC33CH256MP508-E/PT | DSPIC33CH128MP508-I/PT | DSPIC33CH256MP506T-I/PT | DSPIC33CK256MP508-I/PT |
|---|---|---|---|---|---|---|
| Package | TQFP-80 (PT) | TQFP-80 (PT) - same | TQFP-80 (PT) - same | TQFP-80 (PT) - same | TQFP-80 (PT) - same | TQFP-80 (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Architecture | Dual-core (100+90 MIPS) | Dual-core (100+90 MIPS) | Dual-core (100+90 MIPS) | Dual-core (100+90 MIPS) | Dual-core (100+90 MIPS) | Single-core 100 MIPS |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +125C (automotive) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) |
| PWM Resolution | 1.04 ns (high-resolution) | 1.04 ns | 1.04 ns | 1.04 ns | 1.04 ns | 1.04 ns |
| CAN-FD | Yes | Yes | Yes | Yes | Yes | Yes |
| Functional Safety (FuSa) | Yes | Yes | Yes | Yes | Yes | Yes |
| Packaging Format | Tape & Reel | Tray | Tray | Tray | Tape & Reel | Tray |
Diferenciadores clave
- Dual-core partitioning enables firmware IP protection and deterministic dual-task execution (frente a DSPIC33CK256MP508-I/PT)
- 256 KB Flash supports larger state machines and proprietary DSP libraries (frente a DSPIC33CH128MP508-I/PT)
- Single-package availability across industrial, automotive, and tape-and-reel variants (frente a DSPIC33CH256MP508-E/PT)
- High-resolution PWM (1.04 ns) eliminates external gate-driver delay circuits (frente a TMS320F280049C (TI))
Notas de diseño
The DSPIC33CH256MP508T-I/PT requires a clean 3.3 V supply with low ripple (under 50 mVpp). Place 100 nF X7R ceramic decoupling capacitors within 2 mm of each VDD/VSS pin pair on the 80-pin TQFP, plus 4.7 uF bulk capacitors at each supply rail segment. Separate AVdd and Vdd planes with a ferrite bead for noise-sensitive ADC applications. Add 10 uF tantalum or polymer bulk capacitor near the MCU to handle transient current spikes during PWM switching events. The slave core adds 20-30 mA additional current demand; budget the regulator for at least 200 mA total.
At full operating speed (200 MHz main + 180 MHz slave) and industrial temperature, the TQFP-80 (PT) package dissipates approximately 0.5-0.8 W. The 12x12 mm body provides adequate thermal mass for most applications without external heatsinking. For continuous high-utilization designs (above 80% CPU load on both cores), a small copper pad area (at least 100 sq mm) on top and bottom PCB layers tied to the central ground pad improves heat spreading. Industrial temperature rating is -40C to +85C ambient; junction-to-ambient thermal resistance is approximately 40 C/W for the TQFP-80.
Route ADC analog inputs (AN0-AN13) on the inner PCB layer with a continuous ground pour on both sides to minimize coupling from PWM signals. Keep digital switching traces at least 5 mm away from analog inputs. The 0.5 mm pitch TQFP package requires careful PCB manufacturing - specify ENIG surface finish and 0.1 mm/4 mil trace/space rules for signal escape routing under the package. Place the crystal oscillator (or external clock source) within 5 mm of OSC1/OSC2 pins with guard-ring ground traces to minimize EMI susceptibility.
Common pitfalls when designing with the DSPIC33CH256MP508T-I/PT: (1) The slave core requires its own PRAM boot configuration; failure to initialize the slave correctly results in system lockup. (2) The high-resolution PWM requires careful dead-time configuration to avoid shoot-through in motor-drive applications. (3) When migrating from dsPIC33CK to dsPIC33CH, firmware is NOT directly portable - the slave-core interrupt vector table must be redefined. (4) The CAN-FD peripheral requires firmware enable for CAN-FD mode; default configuration is classic CAN. (5) Industrial temperature grade is -40C to +85C, not the extended -40C to +125C; choose E suffix for automotive.
Información de cumplimiento
RoHS compliant per distributor listings (Mouser, DigiKey). Industrial temperature grade (-40C to +85C) per 'I' suffix. For AEC-Q100 automotive qualification, choose the 'E' suffix variant DSPIC33CH256MP508-E/PT. Halogen-free status not stated in available data.