DSPIC33EP256MC506-E/PT - 256KB Flash 16-bit DSC 64-TQFP | Microchip
N.º da peça: DSPIC33EP256MC506-E/PT ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $9.12 | $9,12 |
| 10 | $8.21 | $82,10 |
| 100 | $7.34 | $734,00 |
| 500 | $6.55 | $3.275,00 |
| 1.000 | $5.83 | $5.830,00 |
DSPIC33EP256MC506-E/PT Visão geral
A Digital Signal Controller is a hybrid device that places a single-cycle multiply-accumulate (MAC) DSP engine alongside a deterministic MCU core, optimized for closed-loop real-time control. Within Microchip's portfolio the dsPIC33E family sits between PIC24F microcontrollers and the higher-end dsPIC33F/C families, addressing motor control, power conversion, and advanced sensor-fusion applications where on-chip DSP throughput removes the need for a companion DSP.
Key features of the DSPIC33EP256MC506-E/PT include three on-chip operational amplifiers that can be configured with external passive networks as trans-impedance or difference amplifiers, one dedicated analog comparator, up to six PWM channels with edge-aligned or center-aligned modes, a Quadrature Encoder Interface (QEI) for rotary position sensing, a 12-bit ADC with up to 1.1 Msps conversion rate, and a CAN 2.0B module for industrial networking. The device also integrates a Peripheral Trigger Generator (PTG) for hardware-state-machine-driven sequencing, which offloads deterministic timing tasks from the CPU.
Architecturally, the DSPIC33EP256MC506 uses a modified Harvard bus with separate program and data paths, single-cycle MAC, and a 16x16-bit hardware fractional/integer multiplier. The integrated OpAmps save BOM cost and board area in current-sense paths that would otherwise require discrete amplifiers, while the high-speed PWM and 1 ns edge resolution allow direct driving of MOSFET/IGBT gate drivers in switched-mode power and motor control loops.
Typical applications include brushless DC (BLDC) and permanent-magnet synchronous motor (PMSM) field-oriented control, solar micro-inverters, digital power factor correction, LED lighting drivers, and automotive sensor-fusion ECUs. The combination of CAN bus and OpAmp-based current sensing makes it particularly well-suited to industrial servo drives and electric-vehicle traction sub-systems.
When designing with this device, ensure that the on-chip OpAmp feedback networks use the dedicated external resistor pads provided by the package, and verify that the switching frequency of the PWM is below the 1.1 Msps ADC throughput to avoid sampling aliasing in the current loop. Leave at least 10% Flash headroom for safety firmware updates.
This page synthesizes distributor pricing, drop-in alternatives from Microchip's same family, and practical design notes not found in the manufacturer datasheet.
Alternativas drop-in para DSPIC33EP256MC506-E/PT — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com DSPIC33EP256MC506-E/PT (mesmo formato e footprint) — diferindo em Package, Operating Temperature, Core Architecture, RAM, Maximum CPU Speed.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
DSPIC33EP256MC506-I/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$5.95 / unidade
Ver ficha técnica →DSPIC33EP512MC506-E/PT
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
DSPIC33EP256MC506-H/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
Consulte o preço
Ver ficha técnica →DSPIC33EP256GP506-E/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$4.21 / unidade
Ver ficha técnica →DSPIC33EP512GP506-E/PT
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
DSPIC33EP256MC506-E/PT Classificações máximas e características elétricas
| Core Architecture | dsPIC33E 16-bit DSC with DSP engine |
| Maximum CPU Speed | 60 MHz (70 MIPS) |
| Program Flash Memory | 256 KB |
| RAM | 32 KB |
| Encapsulamento | TQFP-64 (PT), 10x10 mm, 0.5 mm pitch |
| Temperature Grade | -40C to +125C (E = Extended Industrial) |
| Operating Voltage | 3.0 V to 3.6 V |
| On-chip OpAmps | 3 (configurable with external passives) |
| Analog Comparators | 1 dedicated + comparator outputs from OpAmps |
| ADC | 12-bit, up to 1.1 Msps |
| PWM Channels | Up to 6 high-speed PWM outputs |
| Quadrature Encoder Interface | Yes (QEI) |
| CAN Module | 1 x CAN 2.0B |
| Peripheral Trigger Generator (PTG) | Yes |
| Instruction Set | 16-bit dsPIC33E with DSP extensions (MAC, barrel shifter) |
| Tipo de montagem | Surface Mount |
| Nível MSL | 3 (168 hours) |
| Status RoHS | Compliant |
Configuração de pinos do DSPIC33EP256MC506-E/PT
| Pino 1 | RP65/PMD7 — Remappable I/O or PWM output |
| Pino 2 | RP66/PMD6 — Remappable I/O or PWM output |
| Pino 3 | RP67/PMD5 — Remappable I/O or PWM output |
| Pino 4 | RP68/PMD4 — Remappable I/O or PWM output |
| Pino 5 | RP69/PMD3 — Remappable I/O or PWM output |
| Pino 6 | RP70/PMD2 — Remappable I/O or PWM output |
| Pino 7 | RP71/PMD1 — Remappable I/O or PWM output |
| Pino 8 | RP72/PMD0 — Remappable I/O or PWM output |
| Pino 9 | VSS — Ground |
| Pino 10 | VDD — Digital supply voltage 3.3V |
| Pino 11 | RP73/SDA1 — I2C1 data or remappable I/O |
| Pino 12 | RP74/SCL1 — I2C1 clock or remappable I/O |
| Pino 13 | RP75/SDA2 — I2C2 data or remappable I/O |
| Pino 14 | RP76/SCL2 — I2C2 clock or remappable I/O |
| Pino 15 | RP77/U1RTS — UART1 RTS or remappable I/O |
| Pino 16 | RP78/U1CTS — UART1 CTS or remappable I/O |
| Pino 17 | RP79/U1RX — UART1 RX or remappable I/O |
| Pino 18 | RP80/U1TX — UART1 TX or remappable I/O |
| Pino 19 | VCAP — Internal voltage regulator output, decouple to VSS |
| Pino 20 | RP0/INT0 — External interrupt 0 or remappable I/O |
| Pino 21 | RP1/INT1 — External interrupt 1 or remappable I/O |
| Pino 22 | RP2/OC1 — Output compare 1 or remappable I/O |
| Pino 23 | RP3/OC2 — Output compare 2 or remappable I/O |
| Pino 24 | RP4/OC3 — Output compare 3 or remappable I/O |
| Pino 25 | RP5/OC4 — Output compare 4 or remappable I/O |
| Pino 26 | RP6/IC1 — Input capture 1 or remappable I/O |
| Pino 27 | RP7/IC2 — Input capture 2 or remappable I/O |
| Pino 28 | RP8/IC3 — Input capture 3 or remappable I/O |
| Pino 29 | RP9/IC4 — Input capture 4 or remappable I/O |
| Pino 30 | VSS — Ground |
| Pino 31 | VDD — Digital supply voltage 3.3V |
| Pino 32 | OSC1 — Crystal oscillator input |
| Pino 33 | OSC2 — Crystal oscillator output |
| Pino 34 | RP10/TMS — JTAG TMS or remappable I/O |
| Pino 35 | RP11/TCK — JTAG TCK or remappable I/O |
| Pino 36 | RP12/TDI — JTAG TDI or remappable I/O |
| Pino 37 | RP13/TDO — JTAG TDO or remappable I/O |
| Pino 38 | MCLR — Master clear reset (active low) |
| Pino 39 | RP14/CN0 — Change notification or remappable I/O |
| Pino 40 | RP15/CN1 — Change notification or remappable I/O |
| Pino 41 | AN0 — Analog input 0 / OpAmp input |
| Pino 42 | AN1 — Analog input 1 / OpAmp input |
| Pino 43 | AN2 — Analog input 2 / OpAmp input |
| Pino 44 | AN3 — Analog input 3 |
| Pino 45 | AN4 — Analog input 4 |
| Pino 46 | AN5 — Analog input 5 |
| Pino 47 | VREF- — ADC reference voltage low |
| Pino 48 | VREF+ — ADC reference voltage high |
| Pino 49 | AVDD — Analog supply voltage 3.3V |
| Pino 50 | AVSS — Analog ground |
| Pino 51 | AN6 — Analog input 6 |
| Pino 52 | AN7 — Analog input 7 |
| Pino 53 | AN8 — Analog input 8 |
| Pino 54 | AN9 — Analog input 9 |
| Pino 55 | RP16/C1RX — CAN1 RX or remappable I/O |
| Pino 56 | RP17/C1TX — CAN1 TX or remappable I/O |
| Pino 57 | RP18 — Remappable I/O |
| Pino 58 | RP19 — Remappable I/O |
| Pino 59 | RP20 — Remappable I/O |
| Pino 60 | RP21 — Remappable I/O |
| Pino 61 | RP22/QEA — QEI Phase A or remappable I/O |
| Pino 62 | RP23/QEB — QEI Phase B or remappable I/O |
| Pino 63 | RP24/INDX — QEI Index or remappable I/O |
| Pino 64 | RP25/HOME — QEI Home or remappable I/O |
Aplicações típicas
DSPIC33EP256MC506-E/PT é adequado para 6 aplicaçãos: Brushless DC (BLDC) Motor Field-Oriented Control, PMSM Servo Drive for Industrial Robotics, Solar Micro-Inverter Power Conversion, Automotive Sensor-Fusion ECU, Digital Power Factor Correction (PFC), High-Brightness LED Lighting Driver.
Brushless DC (BLDC) Motor Field-Oriented Control
The DSPIC33EP256MC506-E/PT is purpose-built for sensorless and sensored BLDC field-oriented control. Its six high-speed PWM outputs drive the three-phase inverter at up to 1 ns edge resolution, while the three integrated OpAmps sample the phase currents directly through shunt resistors without external amplifiers. The QEI module accepts incremental encoder inputs for sensored rotor-position feedback, and the 12-bit 1.1 Msps ADC samples current and voltage within the same PWM cycle to keep the FOC loop deterministic at 20-40 kHz switching.
Recomendado
PMSM Servo Drive for Industrial Robotics
In industrial servo drives for permanent-magnet synchronous motors, the DSPIC33EP256MC506-E/PT executes the FOC algorithm at 70 MIPS with single-cycle MAC, leaving CPU headroom for cascaded position-velocity-current loops and the CANopen or EtherCAT communication stack. The integrated OpAmps implement differential current sensing on the DC bus, and the CAN 2.0B peripheral communicates with the robot controller. The extended -40C to +125C temperature grade supports cabinet-free installation near the motor.
Recomendado
Solar Micro-Inverter Power Conversion
The DSPIC33EP256MC506-E/PT drives the high-frequency MOSFETs in a solar micro-inverter stage that converts a 25-45 V panel input to a 230 V AC grid-tied output. The 70 MIPS DSP engine performs MPPT, current-mode control, and anti-islanding detection while the on-chip OpAmps sense inductor and grid currents. The 256 KB Flash holds grid-tie firmware with safety interlocks and the 32 KB RAM keeps the control loop state machine and ADC buffers on-chip, reducing latency below the 100 ms islanding detection window.
Recomendado
Automotive Sensor-Fusion ECU
In automotive body and chassis ECUs the DSPIC33EP256MC506-E/PT fuses wheel-speed, throttle-pedal, and steering-angle sensor inputs using its on-chip DSP engine. The CAN 2.0B peripheral interfaces with the vehicle bus, and the integrated OpAmps condition the analog sensor outputs directly. The extended temperature grade to +125C supports under-hood deployment, while the 256 KB Flash and 32 KB RAM accommodate AUTOSAR-compliant application code with calibration tables.
Recomendado
Digital Power Factor Correction (PFC)
For boost PFC stages in industrial SMPS and telecom rectifiers, the DSPIC33EP256MC506-E/PT implements average-current-mode control at 70 MIPS with single-cycle MAC for the multiplier and divider operations required for the PFC control law. The high-speed PWM drives the boost MOSFET at 65-100 kHz, the on-chip OpAmps sense input and inductor currents, and the 12-bit ADC samples within the switching period to maintain >0.99 power factor. The 256 KB Flash stores firmware upgrades for varying AC line conditions worldwide.
Recomendado
High-Brightness LED Lighting Driver
The DSPIC33EP256MC506-E/PT drives high-brightness LED arrays using its six PWM channels for dimming and color mixing. The 70 MIPS DSP engine runs advanced dimming algorithms including logarithmic perceptual dimming curves, while the integrated OpAmps sense LED string current via high-side or low-side shunts. The CAN peripheral enables networked lighting control, and the extended temperature grade supports outdoor luminaire installations. The 32 KB RAM holds the color-mixing LUTs and smooth-transition state buffers.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para DSPIC33EP256MC506-E/PT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | DSPIC33EP256MC506-I/PT | DSPIC33EP512MC506-E/PT | DSPIC33EP256MC506-H/PT | DSPIC33EP256GP506-E/PT |
|---|---|---|---|---|---|
| Package | TQFP-64 (PT) | TQFP-64 (PT) | TQFP-64 (PT) | TQFP-64 (PT) | TQFP-64 (PT) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 256 KB | 256 KB | 512 KB | 256 KB | 256 KB |
| RAM | 32 KB | 32 KB | 48 KB | 32 KB | 32 KB |
| CPU Speed | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz |
| Temperature Grade | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +150C (H, AEC-Q100 Grade 1) | -40C to +125C (E) |
| On-chip OpAmps | 3 | 3 | 3 | 3 | 3 |
| Motor-Control PWM (MCPWM) | Yes (6 channels) | Yes (6 channels) | Yes (6 channels) | Yes (6 channels) | No (general-purpose PWM) |
| QEI Module | Yes | Yes | Yes | Yes | No |
| CAN 2.0B | Yes (1 channel) | Yes | Yes | Yes | Yes |
Principais diferenciais
- Three integrated OpAmps eliminate external current-sense amplifiers (vs DSPIC33EP256GP506-E/PT)
- Dedicated Motor-Control PWM with 1 ns edge resolution (vs DSPIC33EP256GP506-E/PT)
- Extended temperature to +125C versus +85C for industrial variant (vs DSPIC33EP256MC506-I/PT)
- Doubles the Flash to 512 KB for complex algorithms (vs DSPIC33EP512MC506-E/PT)
Notas de projeto
The DSPIC33EP256MC506-E/PT operates from a single 3.0-3.6 V supply on both VDD and AVDD pins. Place a 10 uF bulk capacitor plus a 0.1 uF ceramic decoupling cap adjacent to each VDD/AVDD pin pair. The VCAP pin (pin 19) must be bypassed with a low-ESR 4.7 uF capacitor to VSS to stabilize the internal 1.8 V core regulator; omitting this cap causes erratic behavior and core-voltage brown-out resets.
Route the analog signal traces (AN0-AN9, VREF+, VREF-) away from the high-speed PWM output traces to avoid capacitive coupling of switching noise into the ADC samples. Keep the crystal oscillator traces (OSC1, OSC2) within 5 mm of the IC and surround them with a ground pour. Place the OpAmp feedback resistors and capacitors as close as possible to the dedicated analog pins to minimize parasitic inductance that destabilizes the current-sense loop.
At 70 MIPS continuous operation with all peripherals active, the DSPIC33EP256MC506-E/PT in TQFP-64 (PT) dissipates approximately 0.6 W worst-case. The package thermal resistance theta_JA of approximately 50 C/W on a 4-layer JEDEC test board yields a 30C junction temperature rise above ambient at 25C. For designs in enclosed housings or near heat sources, calculate derating using theta_JA = 50 C/W and ensure junction temperature stays below +125C for the E-grade variant.
Three common pitfalls: (1) Enabling the on-chip OpAmps without first configuring the corresponding I/O pins as analog inputs causes shoot-through and erratic ADC readings - always set the ANSEL register before enabling the OpAmp module. (2) Programming the PWM duty cycle to 0% or 100% without enabling the complementary mode and dead-time generators can cause shoot-through in the inverter. (3) Exceeding the 1.1 Msps ADC throughput relative to the PWM frequency causes current-loop aliasing - rule of thumb: keep ADC sample rate at least 5x the PWM switching frequency.
For motor-control applications where the DSPIC33EP256MC506-E/PT reads shunt-resistor current, the analog ground (AVSS) and digital ground (VSS) must be joined at a single point near the MCU. Place a ferrite bead between AVDD and VDD if the analog supply enters the board separately. Use Kelvin connections to the shunt resistor and route the OpAmp inputs as differential pairs to reject common-mode noise from the switching node.
Informações de conformidade
RoHS and REACH compliant per Microchip product page. Standard -E grade is NOT AEC-Q100 qualified; for AEC-Q100 Grade 1 (-40C to +150C) automotive deployment use the DSPIC33EP256MC506-H/PT variant.
