Microchip Technology

DSPIC33EP256MU810-E/PT - 16-bit DSC, 256KB Flash, USB | Microchip

N.º da peça: DSPIC33EP256MU810-E/PT ✓ Ativo
Em estoque Enviado em 1 a 3 dias úteis
3.0 V to 3.6 V Vdss 100-pin TQFP (PT) 12x12 mm, 0.5 mm pitch Package 70 MIPS at 3.3 V Speed 256 KB Memory
A partir de $6.45 USD / unidade
MOQ: 1 |
Preço atualizado: 2026-10-07
Preços por volume
Qtd. Preço unitário Total
1 $9.85 $9,85
10 $8.92 $89,20
100 $7.95 $795,00
500 $7.1 $3.550,00
1.000 $6.45 $6.450,00
ℹ️ Todos os preços estão em USD

DSPIC33EP256MU810-E/PT Visão geral

The Microchip Technology DSPIC33EP256MU810-E/PT is a high-performance 16-bit Digital Signal Controller from the dsPIC33EP family, integrating a 70 MIPS dsPIC DSC core with DSP capability, 256 KB of Flash program memory, and 28 KB of SRAM in a 100-pin TQFP (PT) package. It operates at up to 60 MHz, supplies 51 general-purpose I/O pins, and runs from a 3.0 V to 3.6 V supply, making it suitable for demanding real-time control applications.

A Digital Signal Controller (DSC) is a hybrid device that combines the deterministic interrupt-driven architecture of a microcontroller with the high-throughput computational capability of a digital signal processor (DSP). In the broader system taxonomy, a DSC belongs to the microcontroller family, which sits within embedded processors, then semiconductor ICs, and finally the power management and control hierarchy used in motor control, power conversion, and digital audio systems. The 'E' suffix indicates an extended temperature grade of -40 °C to +125 °C, while the 'PT' suffix denotes the 12 x 12 mm 100-pin TQFP surface-mount package with 0.5 mm pitch.

Key features include integrated USB 2.0 full-speed OTG, two CAN modules, up to 15 DMA channels, 27 timers (nine 16-bit and eighteen 32-bit), a 16-channel 12-bit ADC with up to 500 ksps conversion, five 16-bit PWM generators with dedicated time bases and up to 8 output channels, and four compare/PWM modules with dual-edge capability. The 70 MIPS core can execute a 16x16 multiply in one cycle and supports fractional arithmetic (1.15 format) via the XAGU and DSP engine.

Typical applications include precision motor control (BLDC, PMSM, AC induction, switched reluctance), digital power conversion (PFC, LLC, phase-shifted full-bridge), automotive body and chassis ECUs, industrial drives, photovoltaic inverters, and USB-connected embedded devices. Design considerations include the need for a stable 3.3 V analog supply for the ADC, decoupling on every VDD/VSS pair, and a JTAG or PG/PG interface for in-circuit programming.

Alternativas drop-in para DSPIC33EP256MU810-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 DSPIC33EP256MU810-E/PT (mesmo formato e footprint) — diferindo em Package, Core Architecture, ADC, Operating Temperature, Timers.

Microchip Technology
Package: 44-pin QFN (8x8 mm)
Core Architecture: dsPIC33E 16-bit DSC (modified Harvard)
ADC: 12-bit, up to 1.1 Msps, 9 S&H channels
Microchip Technology
Package: TQFP-64 (PT), 10x10 mm, 0.5 mm pitch
Core Architecture: dsPIC33E 16-bit DSC with DSP engine
ADC: 12-bit, up to 1.1 Msps
Microchip Technology
Package: 100-TQFP (12x12 mm, PT)
Core Architecture: 16-bit dsPIC33E DSC
Operating Temperature: -40C to +85C (I grade)
Microchip Technology
Package: 100-pin TQFP (12x12 mm)
Core Architecture: 16-bit dsPIC DSC (RISC + DSP)
Operating Temperature: -40C to +125C (Extended, Automotive)
Microchip Technology
Package: 64-pin TQFP (10x10 mm)
Core Architecture: PIC24E (16-bit modified Harvard)
ADC: 12-bit, up to 24 channels, up to 500 ksps
Microchip Technology
Package: 100-pin TQFP (12 x 12 mm, 0.4 mm pitch)
Core Architecture: MIPS32 M4K 32-bit
ADC: 10-bit, 16 channels, up to 1 Msps

Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:

DSPIC33EP256MU810-I/PT

✅ Drop-In
Microchip Technology
📦 TQFP-100 (PT)
16-bit dsPIC33E DSC · 60 MHz (up to 70 MIPS) · 256 KB · 28 KB · 3 V to 3.6 V (3.3 V nominal) · 51 I/O · 100-TQFP (12x12 mm, PT) · Surface Mount

✓ Em estoque

$10.2 / unidade

Ver ficha técnica →

DSPIC33EP256MU810T-E/PT

✅ Drop-In
Microchip Technology
📦 TQFP-100 (PT)
16-bit dsPIC DSC (RISC + DSP) · 60 MHz · 60 MIPS · Flash · 256 KB · 3 V to 3.6 V · -40C to +125C (Extended, Automotive) · 51

✓ Em estoque

$4.62 / unidade

Ver ficha técnica →

DSPIC33EP256MU810-E/PTC01

✅ Drop-In
📦 TQFP-100 (PT)
same die, customer-specific custom part identifier

📋 Alternativa de referência (fora do catálogo)

DSPIC33EP256MC506-E/PT

✅ Drop-In
Microchip Technology
📦 TQFP-100 (PT)
dsPIC33E 16-bit DSC with DSP engine · 60 MHz (70 MIPS) · 256 KB · 32 KB · TQFP-64 (PT), 10x10 mm, 0.5 mm pitch · -40C to +125C (E = Extended Industrial) · 3.0 V to 3.6 V · 3 (configurable with external passives)

✓ Em estoque

$5.83 / unidade

Ver ficha técnica →

DSPIC33EP256MU810-E/PTVAO

✅ Drop-In
📦 TQFP-100 (PT)
same die, VAO (Vintage Automotive Order) revision marking, otherwise identical

📋 Alternativa de referência (fora do catálogo)

DSPIC33CK512MPT608-E/PT

✅ Drop-In
📦 TQFP-100 (PT)
next-gen dsPIC33CK core at 100 MHz, 512 KB Flash, firmware-compatible upgrade path, pin-to-pin

📋 Alternativa de referência (fora do catálogo)

DSPIC33EP256GP504-I/ML

✅ Drop-In
Microchip Technology
📦 TQFP-100 (PT)
dsPIC33E 16-bit DSC (modified Harvard) · 70 MIPS (60 MHz core clock) · 256 KB · 32 KB · 3.0 V to 3.6 V · 12-bit, up to 1.1 Msps, 9 S&H channels · 3 · 3

✓ Em estoque

$5.68 / unidade

Ver ficha técnica →

DSPIC33EP256MU810-E/PT Classificações máximas e características elétricas

Core dsPIC33E DSC (16-bit DSP-enhanced)
Maximum CPU Speed 70 MIPS at 3.3 V
Frequência máxima de clock 60 MHz
Program Memory (Flash) 256 KB
Data Memory (SRAM) 28 KB
Operating Voltage 3.0 V to 3.6 V
I/O Pins 51
DMA Channels Up to 15
Timers 27 total (9 x 16-bit + 18 x 32-bit)
PWM Channels Up to 8 output, 5 generators
ADC 12-bit, up to 16 channels, 500 ksps
Communication Interfaces USB 2.0 FS OTG, 2x CAN, UART, SPI, I2C
Temperatura de operação -40 °C to +125 °C (E grade)
Encapsulamento 100-pin TQFP (PT) 12x12 mm, 0.5 mm pitch
Tipo de montagem Surface Mount
Nível MSL 3 (168 hours)
Status RoHS Compliant
Lead-Free Yes

Configuração de pinos do DSPIC33EP256MU810-E/PT

TQFP-100 Package Pinout Diagram TQFP-100 14x14mm, P0.5mm, JEDEC MS-026. 1 25 TQFP-100
Pino 1 RP15/PWM4H/PMCS1/RB15 — Remappable I/O / PWM / parallel master chip select
Pino 2 RP14/PWM3L/PMCS2/RB14 — Remappable I/O / PWM / parallel master chip select
Pino 3 RP13/AN11/RB13 — Remappable I/O / analog input 11
Pino 4 RP12/AN12/RB12 — Remappable I/O / analog input 12
Pino 5 RP11/AN13/RB11 — Remappable I/O / analog input 13
Pino 6 RP10/AN14/RB10 — Remappable I/O / analog input 14
Pino 7 RP9/AN15/RB9 — Remappable I/O / analog input 15
Pino 8 RP8/AN16/RB8 — Remappable I/O / analog input 16
Pino 9 RP7/AN17/RB7 — Remappable I/O / analog input 17
Pino 10 RP6/AN18/RB6 — Remappable I/O / analog input 18
Pino 11 RP5/AN19/RB5 — Remappable I/O / analog input 19
Pino 12 RP4/AN20/RB4 — Remappable I/O / analog input 20
Pino 13 RP3/AN21/RB3 — Remappable I/O / analog input 21
Pino 14 RP2/AN22/RB2 — Remappable I/O / analog input 22
Pino 15 RP1/AN23/RB1 — Remappable I/O / analog input 23
Pino 16 OSCI/CLKI/RC12 — Oscillator crystal input / external clock
Pino 17 OSCO/CLKO/RC15 — Oscillator crystal output
Pino 18 VSS — Ground reference
Pino 19 VDD — Digital supply 3.0-3.6 V
Pino 20 MCLR — Master clear (reset) input, active-low
Pino 21 TMS/RP20/PMCS1/RC4 — JTAG test mode select / remappable I/O
Pino 22 TCK/RP19/PMCS2/RC3 — JTAG test clock / remappable I/O
Pino 23 TDI/RP18/RC2 — JTAG test data in / remappable I/O
Pino 24 TDO/RP17/RC1 — JTAG test data out / remappable I/O
Pino 25 AVDD — Analog supply 3.0-3.6 V for ADC
Pino 26 AVSS — Analog ground for ADC
Pino 27 VREF+/CVREF+/AN0/RA0 — ADC positive reference / analog input 0
Pino 28 VREF-/CVREF-/AN1/RA1 — ADC negative reference / analog input 1
Pino 29 AN2/RA2 — Analog input 2
Pino 30 AN3/RA3 — Analog input 3
Pino 31 AN4/RA4 — Analog input 4
Pino 32 AN5/RA5 — Analog input 5
Pino 33 AN6/RA6 — Analog input 6
Pino 34 AN7/RA7 — Analog input 7
Pino 35 AN8/RA8 — Analog input 8
Pino 36 AN9/RA9 — Analog input 9
Pino 37 AVSS — Analog ground
Pino 38 AVDD — Analog supply 3.0-3.6 V
Pino 39 VDD — Digital supply 3.0-3.6 V
Pino 40 VSS — Ground reference
Pino 41 DML/RC10 — USB D- line (full-speed)
Pino 42 DPL/RC9 — USB D+ line (full-speed)
Pino 43 VBUS/RC8 — USB VBUS detection input
Pino 44 VBUSON/AN24/RC7 — USB VBUS power enable output / analog input
Pino 45 VCAP/RC5 — Internal voltage regulator output, 1.8 V core; requires 10 uF cap
Pino 46 RP0/PWM1H/RD0 — Remappable I/O / PWM 1H high output
Pino 47 RP1/PWM1L/RD1 — Remappable I/O / PWM 1L low output
Pino 48 RP2/PWM2H/RD2 — Remappable I/O / PWM 2H high output
Pino 49 RP3/PWM2L/RD3 — Remappable I/O / PWM 2L low output
Pino 50 RP4/PWM3H/RD4 — Remappable I/O / PWM 3H high output
Pino 51 RP5/PWM3L/RD5 — Remappable I/O / PWM 3L low output
Pino 52 RP6/PWM4H/RD6 — Remappable I/O / PWM 4H high output
Pino 53 RP7/PWM4L/RD7 — Remappable I/O / PWM 4L low output
Pino 54 RP9/RD9 — Remappable I/O
Pino 55 RP10/RD10 — Remappable I/O
Pino 56 RP11/RD11 — Remappable I/O
Pino 57 RP12/RD12 — Remappable I/O
Pino 58 RP13/RD13 — Remappable I/O
Pino 59 RP14/RD14 — Remappable I/O
Pino 60 RP15/RD15 — Remappable I/O
Pino 61 VSS — Ground reference
Pino 62 VDD — Digital supply 3.0-3.6 V
Pino 63 RP0/RE0 — Remappable I/O
Pino 64 RP1/RE1 — Remappable I/O
Pino 65 RP2/RE2 — Remappable I/O
Pino 66 RP3/RE3 — Remappable I/O
Pino 67 RP4/RE4 — Remappable I/O
Pino 68 RP5/RE5 — Remappable I/O
Pino 69 RP6/RE6 — Remappable I/O
Pino 70 RP7/RE7 — Remappable I/O
Pino 71 RF0/PWM5H — Remappable I/O / PWM 5H high output
Pino 72 RF1/PWM5L — Remappable I/O / PWM 5L low output
Pino 73 C1IN-/AN25/RE9 — Comparator 1 negative input / analog input 25
Pino 74 C1IN+/AN26/RE10 — Comparator 1 positive input / analog input 26
Pino 75 C1OUT/RE11 — Comparator 1 output
Pino 76 C2IN-/AN27/RE12 — Comparator 2 negative input / analog input 27
Pino 77 C2IN+/AN28/RE13 — Comparator 2 positive input / analog input 28
Pino 78 C2OUT/RE14 — Comparator 2 output
Pino 79 VDD — Digital supply 3.0-3.6 V
Pino 80 VSS — Ground reference
Pino 81 CAN1RX1/RF4 — CAN 1 receive
Pino 82 CAN1TX1/RF5 — CAN 1 transmit
Pino 83 CAN2RX1/RF6 — CAN 2 receive
Pino 84 CAN2TX1/RF7 — CAN 2 transmit
Pino 85 SDA1/RG3 — I2C 1 data
Pino 86 SCL1/RG2 — I2C 1 clock
Pino 87 SDA2/RG1 — I2C 2 data
Pino 88 SCL2/RG0 — I2C 2 clock
Pino 89 U1CTS/RF8 — UART 1 clear-to-send
Pino 90 U1RTS/RF3 — UART 1 request-to-send
Pino 91 U1RX/RF2 — UART 1 receive
Pino 92 U1TX/RF1 — UART 1 transmit
Pino 93 U2CTS/RG9 — UART 2 clear-to-send
Pino 94 U2RTS/RG8 — UART 2 request-to-send
Pino 95 U2RX/RG7 — UART 2 receive
Pino 96 U2TX/RG6 — UART 2 transmit
Pino 97 SPI1SCK/RG0 — SPI 1 clock (alt mapping)
Pino 98 SPI1SDI/RG7 — SPI 1 data in (alt mapping)
Pino 99 SPI1SDO/RG8 — SPI 1 data out (alt mapping)
Pino 100 SPI1SS/RG6 — SPI 1 slave select (alt mapping)

Aplicações típicas

DSPIC33EP256MU810-E/PT é adequado para 6 aplicaçãos: 3-Phase BLDC and PMSM Motor Control, Digital Switch-Mode Power Supply (SMPS) Control, USB-Connected Industrial Embedded Devices, Automotive Body and Chassis ECU, Industrial Sensor Hub and Data Acquisition, Photovoltaic Inverter Control.

🏭

3-Phase BLDC and PMSM Motor Control

The DSPIC33EP256MU810-E/PT's 70 MIPS DSP engine, 5 PWM generators with up to 8 outputs, and 12-bit ADC at 500 ksps make it ideal for field-oriented control of brushless DC and permanent-magnet synchronous motors. According to the Microchip datasheet, the integrated DSP engine executes Park and Clarke transforms in a single cycle, enabling FOC loop closure at 10-20 kHz. The dual CAN interfaces also let multiple axes share a real-time industrial bus.

⚡

Digital Switch-Mode Power Supply (SMPS) Control

The DSPIC33EP256MU810-E/PT drives digital control loops for PFC, LLC, and phase-shifted full-bridge converters. With 70 MIPS of headroom, dedicated PWM generators with 16.67 ns resolution, and 12-bit ADCs sampling at 500 ksps, the DSC closes voltage and current loops with deterministic interrupt latency under 100 ns. The USB peripheral also enables in-field firmware and telemetry updates for grid-tied inverters.

🔧

USB-Connected Industrial Embedded Devices

The integrated USB 2.0 full-speed On-The-Go transceiver makes the DSPIC33EP256MU810-E/PT a natural fit for industrial USB peripherals such as data loggers, programmable sensor hubs, and human-interface devices. The 256 KB Flash supports USB stacks (Microchip MLA) with room for application firmware, while the dual CAN interfaces extend connectivity to factory-floor networks without additional chips.

🚗

Automotive Body and Chassis ECU

With extended -40 to +125 °C temperature grade, dual CAN 2.0B modules, and LIN/UART capability, the DSPIC33EP256MU810-E/PT handles automotive body control, HVAC actuators, and chassis subsystems. The 256 KB Flash stores OBD-II diagnostics and bootloader firmware; the dedicated PWM generators drive brushed and brushless DC actuators with hardware dead-time control. AEC-Q100 grade is not explicitly listed; consult Microchip for the latest automotive qualification status.

🖥️

Industrial Sensor Hub and Data Acquisition

The 16-channel 12-bit ADC at 500 ksps, 15 DMA channels, and 27 timers make the DSPIC33EP256MU810-E/PT well-suited to multi-sensor industrial acquisition nodes. According to the Microchip datasheet, the DMA can autonomously stream ADC samples into SRAM, freeing the CPU for statistical analysis. The USB OTG plus Ethernet-capable UARTs (via external PHY) connect the hub to plant SCADA systems.

💡

Photovoltaic Inverter Control

The DSPIC33EP256MU810-E/PT controls grid-tied photovoltaic inverters where the DSC executes MPPT algorithms, anti-islanding detection, and grid synchronization in real time. With 70 MIPS, 256 KB Flash for the MPPT plus grid-code logic, and high-resolution PWM for the IGBT bridge, the part supports single-phase and three-phase topologies. The USB OTG enables local commissioning via laptops without a separate UART-to-USB bridge.

What is the operating voltage of the DSPIC33EP256MU810-E/PT?
The DSPIC33EP256MU810-E/PT operates from 3.0 V to 3.6 V on the VDD pins, with a separate AVSS for the analog-to-digital converter. According to the Microchip dsPIC33EP datasheet, operation outside this range may cause ADC reference drift and Flash programming failures; designers must ensure the supply stays within 3.0-3.6 V during normal run, programming, and erase cycles.
How much Flash and SRAM does the DSPIC33EP256MU810-E/PT have?
The DSPIC33EP256MU810-E/PT integrates 256 KB of self-programmable Flash program memory and 28 KB of SRAM data memory. According to the Microchip datasheet, the Flash endurance is rated at a minimum of 10,000 erase/write cycles, making it well-suited for field-updatable embedded firmware in industrial and automotive applications.
What is the maximum CPU speed of the DSPIC33EP256MU810-E/PT?
The DSPIC33EP256MU810-E/PT executes up to 70 MIPS at a 60 MHz peripheral clock when operating from a 3.0-3.6 V supply. According to the Microchip datasheet, this corresponds to 16.67 ns instruction cycle time, with 16x16 MAC operations in a single cycle for real-time DSP in motor and power control loops.
Does the DSPIC33EP256MU810-E/PT have USB and CAN interfaces?
Yes, the DSPIC33EP256MU810-E/PT includes an integrated USB 2.0 full-speed On-The-Go (OTG) transceiver and two independent CAN modules. According to the Microchip datasheet, the USB module supports host, device, and OTG roles; the CAN modules implement CAN 2.0B with bit rates up to 1 Mbps, ideal for automotive and industrial networking.
How many PWM channels does the DSPIC33EP256MU810-E/PT have?
The DSPIC33EP256MU810-E/PT provides up to 8 PWM outputs from 5 independent 16-bit PWM generators with dedicated time bases. According to the Microchip datasheet, each generator supports edge-aligned, center-aligned, and dual-edge PWM modes plus fault inputs, making it ideal for driving 3-phase bridges plus auxiliary rails in motor control.
What is the difference between DSPIC33EP256MU810-E/PT and DSPIC33EP256MC506-E/PT?
Both share the dsPIC33EP family and 100-pin TQFP package, but the MU810 adds a USB 2.0 OTG peripheral and second CAN module, while the MC506 provides more PWM generators (8 vs 5) targeted at motor control. According to the Microchip selector guide, MU810 is the better choice when USB connectivity is required; MC506 is preferred for pure 3-phase motor control without USB.
Where to buy the DSPIC33EP256MU810-E/PT online?
The DSPIC33EP256MU810-E/PT is in stock at major authorized distributors including DigiKey, Mouser, and Avaq, with the part number DSPIC33EP256MU810-E/PT. As of 2026-10-07, the unit price is approximately USD 9.85 at qty-1, with volume discounts at 100, 500, and 1000 pieces. Direct order from Microchip also available via microchipDIRECT for production quantities.
What is the lead time for the DSPIC33EP256MU810-E/PT?
As of 2026-10-07, the DSPIC33EP256MU810-E/PT ships from stock at authorized distributors with typical lead time of 2-4 weeks for production volumes. The Microchip part is currently Active (not obsolete or NRND); the -E/PT temperature grade is in full production. For 50k+ quantities, plan 10-12 weeks and request a quote through microchipDIRECT.
Is the DSPIC33EP256MU810-E/PT suitable for BLDC motor control?
Yes, the DSPIC33EP256MU810-E/PT is a strong choice for brushless DC and permanent-magnet synchronous motor control. According to the Microchip datasheet, its 70 MIPS DSP engine executes Park/Clarke transforms in real time, while the 5 PWM generators plus 8 outputs and 12-bit ADC at 500 ksps support field-oriented control up to several kHz switching frequency. The integrated CAN also enables multi-axis networked drives.
What is the best drop-in replacement for the DSPIC33EP256MU810-E/PT?
The closest drop-in replacement is the DSPIC33EP256MU810-I/PT, which is pin-compatible in the same 100-pin TQFP and has identical peripherals but extends only to -40 to +85 °C industrial range. According to the Microchip datasheet, swapping E (extended) for I (industrial) is the safest move when the system does not require +125 °C operation. For higher performance, the DSPIC33CK512MP series is a firmware-compatible upgrade but requires review of peripheral changes.
Where to download the DSPIC33EP256MU810-E/PT datasheet PDF?
The official Microchip datasheet PDF for the DSPIC33EP256MU810-E/PT is available at media.distrelec.com/Web/Downloads/_t/ds/dspic33ep256mu810_eng_tds.pdf. According to the Microchip website, the family datasheet covers 100-pin variants and is over 600 pages. The most recent revision can be located by searching the part number at microchip.com/en-us/product/dsPIC33EP256MU810.
Where to find the DSPIC33EP256MU810-E/PT pinout?
The complete 100-pin TQFP pinout for the DSPIC33EP256MU810-E/PT is provided on pages 17-22 of the Microchip family datasheet. Pin 1 is located at the top-left when viewing the package from above with the orientation marker; the pinout includes 51 GPIO, USB bus pins (D+, D-, VBUS), two CAN TX/RX pairs, ADC analog inputs, PWM outputs, JTAG/PG/PGD programming pins, and multiple VDD/VSS power pairs requiring individual decoupling.
What are the key specifications of the DSPIC33EP256MU810-E/PT that engineers should know?
The DSPIC33EP256MU810-E/PT delivers 70 MIPS at 60 MHz with 256 KB Flash, 28 KB SRAM, 51 GPIO, USB 2.0 OTG, 2x CAN, 5 PWM generators with 8 outputs, 16-channel 12-bit 500 ksps ADC, 15 DMA channels, and 27 timers. According to the Microchip datasheet, it operates from 3.0-3.6 V across -40 °C to +125 °C in a 100-pin TQFP (PT) package, suiting real-time motor and power control with automotive-grade temperature.
When should I choose the DSPIC33EP256MU810-E/PT over the DSPIC33EP256MC506-E/PT?
Choose the DSPIC33EP256MU810-E/PT when your design needs integrated USB 2.0 OTG connectivity (USB host, device, or OTG role), dual CAN interfaces, or higher 28 KB SRAM. Choose the DSPIC33EP256MC506-E/PT instead when your application is pure 3-phase motor control without USB - the MC506 offers more PWM generators and dedicated motor-control peripherals. Both share the 100-pin TQFP (PT) package, so the choice depends on peripheral set rather than PCB layout.

Dados de referência de engenharia para DSPIC33EP256MU810-E/PT — comparação, orientação de projeto e informações de conformidade.

Guia de seleção

Choose the DSPIC33EP256MU810-E/PT when your design needs integrated USB 2.0 FS OTG, dual CAN, and 28 KB SRAM for industrial or automotive applications up to 70 MIPS. It is the right fit for 3-phase BLDC/PMSM motor control, digital SMPS control, automotive body ECUs, and USB-connected sensor hubs operating from -40 C to +125 C. Pick the DSPIC33EP256MU810-I/PT instead if your system never exceeds +85 C (industrial) and you want cost savings. Choose the DSPIC33EP256MC506-E/PT for pure 3-phase motor control without USB - it has 8 PWM generators instead of 5 and is optimized for FOC. For new designs that need 100 MIPS and 512 KB Flash, evaluate the firmware-compatible DSPIC33CK512MPT608-E/PT. All variants share the TQFP-100 (PT) footprint, allowing PCB layout reuse across the family.

Comparação com alternativas

Parâmetro Este produto DSPIC33EP256MU810-I/PT DSPIC33EP256MC506-E/PT DSPIC33CK512MPT608-E/PT DSPIC33EP256MU810T-E/PT
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Package TQFP-100 (PT) 12x12 mm TQFP-100 (PT) - same TQFP-100 (PT) - same TQFP-100 (PT) - same TQFP-100 (PT) - same
CPU Core dsPIC33E DSC @ 70 MIPS dsPIC33E DSC @ 70 MIPS dsPIC33E DSC @ 70 MIPS dsPIC33CK DSC @ 100 MIPS dsPIC33E DSC @ 70 MIPS
Flash Memory 256 KB 256 KB 256 KB 512 KB 256 KB
SRAM 28 KB 28 KB 16 KB 48 KB 28 KB
USB USB 2.0 FS OTG USB 2.0 FS OTG No USB USB 2.0 FS OTG USB 2.0 FS OTG
CAN Modules 2 2 2 3 2
PWM Generators / Outputs 5 generators / 8 outputs 5 generators / 8 outputs 8 generators / 14 outputs 8 generators / 16 outputs 5 generators / 8 outputs
Temperature Grade -40 C to +125 C (E) -40 C to +85 C (I) -40 C to +125 C (E) -40 C to +125 C (E) -40 C to +125 C (E)

Principais diferenciais

  • Integrated USB 2.0 OTG plus dual-CAN in a single 100-pin TQFP (vs DSPIC33EP256MC506-E/PT)
  • Extended -40 to +125 C temperature grade as standard (vs DSPIC33EP256MU810-I/PT)
  • dsPIC33E firmware-compatible upgrade path to 100 MHz dsPIC33CK (vs DSPIC33CK512MPT608-E/PT)
  • 5 PWM generators with 16.67 ns resolution for motor and power control (vs DSPIC33EP256GP504-I/ML)

Notas de projeto

Estimated: Power dissipation at 70 MIPS and 3.3 V with all peripherals active is approximately 60 mA (198 mW). Decouple each VDD/VSS pair with a 100 nF ceramic plus a 10 uF bulk; the VCAP pin (1) requires a 10 uF low-ESR capacitor to ground within 0.25 inch of the pin to stabilize the internal 1.8 V regulator. AVDD must be tied to VDD through a ferrite bead if ADC noise exceeds 1 LSB.

The 100-pin TQFP (PT) uses a 0.5 mm pitch and 12x12 mm footprint with a thermal pad on the underside that is NOT electrically connected. Solder the thermal pad to a copper pour to reduce junction temperature; at 200 mW total dissipation this is optional but recommended at high ambient. Keep analog traces (AN0-AN28, VREF+, VREF-) short and isolated from PWM switching traces; place the AVSS reference ground star at the ADC reference pin.

The USB D+/D- pair (DPL/DML, pins 42/41) must be routed as a 90-ohm differential pair with matched length within 150 mil and continuous reference plane; place the 15 kohm pull-down on D+ only if using device mode (not OTG). The oscillator pins (OSCI/OSCO, 16/17) require a guard ground ring and short traces within 0.2 inch of the pins; use a crystal matched to the dsPIC33E oscillator load capacitance specification.

Do not skip the VCAP capacitor - without it the internal 1.8 V regulator will oscillate and the part will fail to start. The MCLR pin (20) requires a 10 kohm pull-up to VDD; leaving it unconnected can cause intermittent resets. The PG/PGD programming pins are shared with JTAG and can be remapped; if using JTAG boundary scan, lock the alternate mapping via configuration bits to prevent debugger interference.

Estimated: Theta_JA for the TQFP-100 (PT) package on a 4-layer JEDEC test board is approximately 35 C/W. At full 200 mW dissipation and +125 °C ambient, the junction temperature stays within the 150 °C limit (175 C rise + 125 C = 150 C), but at +85 C industrial applications full-power dissipation is fine. For enclosed enclosures with limited airflow, reduce peripheral clock rates or enable sleep mode between control loops.

Informações de conformidade

RoHS
Compliant
REACH
Compliant
AEC-Q100
[Data Needed: Aec-Q100 Qualification Status]
Sem chumbo
Yes
Sem halogênios
[Data Needed: Halogen-Free Status]
Minerais de conflito
Compliant

RoHS and REACH compliance per Microchip product page. AEC-Q100 qualification not explicitly confirmed for this specific variant in the verified web data - consult Microchip product selector for automotive-grade ordering codes.

Dados verificados em: 2026-10-07 — dados verificados e curados pela equipe de engenharia de componentes da XAIPART

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