DSPIC33EP128GP502-I/SS - 16-bit DSC 128KB Flash 60MHz | Microchip
N.º de pieza: DSPIC33EP128GP502-I/SS ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $4.55 | $4,55 |
| 10 | $4.1 | $41,00 |
| 100 | $3.65 | $365,00 |
| 500 | $3.25 | $1.625,00 |
| 1.000 | $2.9 | $2.900,00 |
DSPIC33EP128GP502-I/SS Descripción general
A Digital Signal Controller combines the peripheral set and interrupt architecture of a microcontroller with the multiply-accumulate (MAC) DSP engine of a digital signal processor. In the power-management hierarchy, the dsPIC33E family sits above basic PIC16/PIC18 MCUs and below full DSPs such as the dsPIC33CH dual-core series, making it the industry workhorse for digitally controlled power conversion and motor control where a single-chip solution is required.
Key features of this GP (General Purpose) variant include the high-speed 16-bit dsPIC33E core with DSP instruction extensions, a CAN 2.0B module for industrial networking, on-chip operational amplifiers, analog comparators, a 12-bit ADC with up to 10 inputs on this 28-pin device, and the Peripheral Trigger Generator (PTG) for autonomous ADC triggering. The Peripheral Pin Select (PPS) system allows most digital peripherals to be mapped to any RPn pin, greatly easing PCB layout.
Architecturally, the device couples a 24-bit instruction word pipeline with two 40-bit accumulators, a 17x17 hardware multiplier, and single-cycle MAC operations. Flash is 43K x 24 organized, and the core can run at up to 60 MIPS from an internal PLL using the Fast RC or external crystal source. Communication peripherals include UART, SPI, and I2C in addition to ECAN.
Typical applications include switch-mode power supplies and digital power, brushless DC and PMSM motor control, automotive and industrial sensor nodes, and general-purpose embedded control needing DSP filtering.
Design-wise, budget the internal 1.8V core regulator with a low-ESR capacitor on the VCAP pin and obey the 3.0V to 3.6V supply range for the -I temperature grade.
This page adds value beyond the datasheet by consolidating distributor pricing, pin-compatible family drop-ins, and practical design notes in one AI-citable reference.
Alternativas directas para DSPIC33EP128GP502-I/SS — 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 DSPIC33EP128GP502-I/SS (mismo factor de forma y huella) — difiere en Package, Operating Temperature, Program Memory (Flash), RoHS Status, Analog Peripherals.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
DSPIC33EP128GP502-E/SS
✅ Sustitución directa✓ En stock
$2.75 / unidad
Ver hoja de datos →DSPIC33EP64GP502-I/SS
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
DSPIC33EP256GP502-I/SS
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
DSPIC33EP32GP502-I/SS
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
DSPIC33EP128MC202-I/SS
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$3.44 / unidad
Ver hoja de datos →DSPIC33EP128GP502-I/SS Valores máximos y características eléctricas
| Core | 16-bit dsPIC33E DSC with DSP engine |
| Max CPU Speed | 60 MHz (60 MIPS) |
| Program Memory (Flash) | 128 KB |
| RAM | 16 KB |
| Operating Voltage | 3 V to 3.6 V |
| Temperatura de funcionamiento | -40C to +85C (I grade) |
| Encapsulado | 28-pin SSOP (SS) |
| Tipo de montaje | Surface Mount |
| CAN | ECAN 2.0B, 1 channel |
| ADC | 12-bit, up to 10 input channels |
| Op Amps | On-chip operational amplifiers |
| Comparators | Analog comparators included |
| Peripheral Trigger Generator | PTG included |
| Peripheral Pin Select | PPS remappable I/O |
| Communication Interfaces | UART, SPI, I2C, ECAN |
| PWM | High-speed PWM / motor control PWM |
| General Purpose I/O | Up to 21 GPIO pins |
Configuración de pines de DSPIC33EP128GP502-I/SS
| Pin 1 | MCLR — Master clear reset input / programming voltage |
| Pin 2 | AN0/RP0 — Analog input 0 / VREF+ / remappable peripheral pin / PGD |
| Pin 3 | AN1/RP1 — Analog input 1 / VREF- / remappable peripheral pin / PGC |
| Pin 4 | AN2/RP2 — Analog input 2 / SS1 / remappable peripheral pin |
| Pin 5 | AN3/RP3 — Analog input 3 / INDX / remappable peripheral pin |
| Pin 6 | AN4/RP4 — Analog input 4 / QEA / remappable peripheral pin |
| Pin 7 | VDD — Power supply (3.0 V to 3.6 V) |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/RPA2 — Crystal oscillator input / CLKI / remappable peripheral pin |
| Pin 10 | OSC2/RPA3 — Crystal oscillator output / CLKO / remappable peripheral pin |
| Pin 11 | AN5/RP5 — Analog input 5 / QEB / remappable peripheral pin |
| Pin 12 | RP6/PGD — Remappable peripheral pin / in-circuit programming data |
| Pin 13 | RP7/PGC — Remappable peripheral pin / in-circuit programming clock |
| Pin 14 | VSS — Ground reference |
| Pin 15 | SOSCI/RPA4 — Secondary oscillator input / CN1 / remappable peripheral pin |
| Pin 16 | SOSCO/RPA0 — Secondary oscillator output / T1CK / remappable peripheral pin |
| Pin 17 | VDD — Power supply (3.0 V to 3.6 V) |
| Pin 18 | RP8 — Remappable peripheral pin / PWM1H |
| Pin 19 | RP9 — Remappable peripheral pin / PWM1L |
| Pin 20 | TMS/RP10 — JTAG test mode select / remappable peripheral pin |
| Pin 21 | TCK/RP11 — JTAG test clock / remappable peripheral pin |
| Pin 22 | TDI/RP12 — JTAG test data in / remappable peripheral pin |
| Pin 23 | TDO/RP13 — JTAG test data out / remappable peripheral pin |
| Pin 24 | AVDD — Analog power supply |
| Pin 25 | AVSS — Analog ground |
| Pin 26 | VCAP — Internal 1.8 V core regulator output - external capacitor required |
| Pin 27 | RP19/PGEC3 — Remappable peripheral pin / programming clock channel 3 |
| Pin 28 | RP18/PGED3 — Remappable peripheral pin / programming data channel 3 |
Aplicaciones típicas
DSPIC33EP128GP502-I/SS es adecuado para 6 aplicacións: Digital Switch-Mode Power Supplies, Brushless DC Motor Control, Industrial CAN Networking Nodes, Sensor Signal Conditioning and Data Acquisition, Power Metering and Energy Monitoring, Embedded Control and IoT Edge Nodes.
Digital Switch-Mode Power Supplies
The DSPIC33EP128GP502-I/SS is well suited to digitally controlled SMPS because its 60 MIPS dsPIC33E core executes a compensation-loop PID in a few microseconds while the on-chip high-speed PWM offers nanosecond-resolution edge control. The 12-bit ADC with PTG triggering samples voltage and current synchronously to the PWM period without CPU intervention, reducing loop jitter. On-chip comparators provide hardware cycle-by-cycle current limiting independent of software. In a typical buck converter, the DSC sits between the feedback divider and the MOSFET gate driver, replacing an analog PWM controller while enabling firmware-defined soft-start, fault logging, and adaptive dead-time. The trade-off versus analog control is firmware development effort and the need for a clean 3.3V supply with a properly sized VCAP capacitor for the internal 1.8V core regulator.
Recomendado
Brushless DC Motor Control
For BLDC and PMSM drives, the DSPIC33EP128GP502-I/SS combines a 60 MIPS DSP engine for field-oriented control math with dedicated motor-control PWM peripherals capable of complementary outputs with programmable dead time. The on-chip op amps can amplify shunt-resistor current signals before the 12-bit ADC, and comparators implement hardware overcurrent trips faster than any software loop. With up to 21 GPIO and Peripheral Pin Select, hall-sensor inputs, encoder quadrature signals, and UART diagnostics can all be mapped to convenient pins. Typical designs use the DSC to drive a three-phase gate driver at 20-50 kHz PWM; the 128 KB Flash holds FOC code plus communication stacks. The -I grade covers -40C to +85C, suitable for industrial drives, pumps, fans, and e-bike controllers.
Recomendado
Industrial CAN Networking Nodes
The integrated ECAN 2.0B module makes the DSPIC33EP128GP502-I/SS a natural fit for CAN-bus industrial and vehicle nodes, handling message filtering, buffers, and arbitration in hardware at up to 1 Mbit/s while the 60 MIPS core runs application logic concurrently. Two UARTs, SPI, and I2C allow bridging CAN to RS-485, sensors, or HMI displays. Peripheral Pin Select maps the CANTX/CANRX and other peripherals to optimal PCB locations near the transceiver. With 128 KB Flash there is headroom for a full CANopen or J1939 stack plus bootloader. Designs typically pair the DSC with a CAN transceiver at the 3.3V rail; the -40C to +85C operating range covers most industrial cabinets and under-hood positions that do not require the -E extended grade.
Recomendado
Sensor Signal Conditioning and Data Acquisition
The on-chip operational amplifiers, analog comparators, and 12-bit ADC make the DSPIC33EP128GP502-I/SS a compact analog front-end plus processor for sensor nodes. The op amps amplify bridge, thermocouple, or shunt signals on-chip, cutting BOM cost and board area versus external instrumentation amplifiers; the PTG then sequences ADC conversions autonomously, so the CPU can sleep between samples and reduce average power. The DSP engine applies single-cycle MAC-based FIR/IIR filtering directly on sampled data. A typical node reads multiple analog channels over the Peripheral Trigger Generator, applies digital filtering, and streams results via UART, SPI, or CAN. With 16 KB RAM and 128 KB Flash, logging buffers and communication stacks coexist comfortably in one 28-pin SSOP device.
Recomendado
Power Metering and Energy Monitoring
Energy metering benefits directly from the DSPIC33EP128GP502-I/SS architecture: simultaneous sampling of voltage and current channels by the 12-bit ADC, triggered at a fixed rate by the PTG, feeds RMS and power calculations implemented with the single-cycle 17x17 MAC. The on-chip op amps condition shunt or CT inputs, and comparators can flag overcurrent events in hardware. Computed energy data is reported over ECAN, UART, or I2C to displays or building-management systems. The 128 KB Flash accommodates calibration tables, anti-tampering code, and a Modbus or DLMS-style protocol stack, while 16 KB RAM supports circular sample buffers. For sub-metering in industrial panels, the -40C to +85C grade and 3.0V to 3.6V operation from a single LDO simplify the power design.
Recomendado
Embedded Control and IoT Edge Nodes
As a general-purpose embedded controller, the DSPIC33EP128GP502-I/SS offers 60 MIPS headroom, 21 remappable GPIO, and multiple serial interfaces in a compact 28-SSOP footprint, ideal for edge nodes that must preprocess data before cloud transmission. The DSP engine accelerates FFT-based vibration or acoustic analysis locally, while UART, SPI, and I2C connect radios, displays, and storage. Self-programming Flash allows field firmware updates over the network, and the Peripheral Trigger Generator offloads deterministic timing tasks. Designers should respect the 3.0V to 3.6V supply window and the VCAP core-regulator capacitor requirement, and use PGEC/PGED pin pairs reserved for ICSP in-circuit reprogramming during production.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para DSPIC33EP128GP502-I/SS — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | DSPIC33EP128GP502-E/SS | DSPIC33EP64GP502-I/SS | DSPIC33EP256GP502-I/SS | DSPIC33EP32GP502-I/SS | DSPIC33EP128MC202-I/SS |
|---|---|---|---|---|---|---|
| Package | 28-pin SSOP (SS) | 28-pin SSOP (SS) - same | 28-pin SSOP (SS) - same | 28-pin SSOP (SS) - same | 28-pin SSOP (SS) - same | 28-pin SSOP (SS) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 60 MHz (60 MIPS) | 60 MHz (60 MIPS) | 60 MHz (60 MIPS) | 60 MHz (60 MIPS) | 60 MHz (60 MIPS) | 60 MHz (60 MIPS) |
| Flash Memory | 128 KB | 128 KB | 64 KB | 256 KB | 32 KB | 128 KB |
| Operating Temperature | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| CAN | ECAN 2.0B (1 ch) | ECAN 2.0B (1 ch) | ECAN 2.0B (1 ch) | ECAN 2.0B (1 ch) | ECAN 2.0B (1 ch) | ECAN 2.0B (1 ch) |
| Peripheral Focus | GP: op amps, comparators, PTG | GP: identical to this product | GP: identical to this product | GP: identical to this product | GP: identical to this product | MC: motor-control PWM-focused mix |
Diferenciadores clave
- Extended temperature option on the identical footprint (frente a DSPIC33EP128GP502-E/SS)
- Twice the code headroom in the same footprint (frente a DSPIC33EP64GP502-I/SS)
- General-purpose analog mix vs motor-control specialization (frente a DSPIC33EP128MC202-I/SS)
Notas de diseño
The dsPIC33E contains an internal 1.8V core regulator accessed via the VCAP pin (pin 26 on the 28-SSOP). Place a low-ESR 10 uF ceramic capacitor from VCAP to VSS as close to the pin as possible, per the Microchip family data sheet DS70000657J. Do not load VCAP externally or use it to power other circuitry. Supply all VDD pins from a single 3.0V-3.6V rail; separate AVDD with an RC or ferrite filter from digital VDD when ADC accuracy matters.
Reserve one PGECx/PGEDx pair (e.g., RP6/PGD on pin 12 and RP7/PGC on pin 13) for ICSP programming headers. The device has multiple PGEC/PGED channels, and ICSPCLK/ICSPDAT must be routed to the same numbered pair or programming will fail - this is the most frequent dsPIC33E bring-up error reported by users on Microchip forums and NSDSP documentation. Keep the header traces short and place a 100 ohm isolation resistor on PGD if the pin is shared with a peripheral.
The supply range is strictly 3.0V to 3.6V - applying 5V damages the part, so level-shift any 5V-domain signals. Analog-capable pins default to digital mode on reset; software must clear their ANSEL bits before using them as GPIO inputs, otherwise reads return zero. When using the ECAN module, the transceiver and DSC must share a common ground and the bus needs 120 ohm termination at both ends. Finally, budget the maximum 60 MIPS clock only after verifying the PLL configuration against the data sheet frequency tables.
Información de cumplimiento
Compliance details not stated in the provided verified web data; consult the Microchip product page environmental datasheet for RoHS/REACH declarations.
