DSPIC33FJ128GP306AT-I/MR - 16-bit 40MIPS DSC 128KB Flash | Microchip
MPN: DSPIC33FJ128GP306AT-I/MR ✓ Hoạt độngDSPIC33FJ128GP306AT-I/MR Tóm tắt
A digital signal controller combines the computing model of a microcontroller with the numeric throughput of a DSP core. In the embedded-systems hierarchy, the dsPIC33F family sits between general-purpose PIC24 MCUs and dedicated DSPs, offering multiply-accumulate (MAC) instructions, a barrel shifter, and multiple internal buses while retaining conventional MCU peripherals such as timers, UARTs, and GPIO. This makes DSCs the natural choice for closed-loop control applications that also require fast numeric processing.
Key features of this part include a 16-bit fixed-point core with DSP instruction extensions, 53 general-purpose I/O pins, an 18-channel 10-bit/12-bit analog-to-digital converter, and industrial temperature operation from -40C to +85C at a 3.0V to 3.6V supply. The 40 MIPs instruction rate supports real-time control loops at tens of kHz.
Architecturally, the dsPIC33FJ128GP306 uses a modified Harvard bus structure with separate program and data paths, hardware loop support, and dual fetch of operands for single-cycle MAC operations. Seamless migration options exist toward PIC24 MCUs and dsPIC30F DSCs in similar packages, protecting long-term designs.
Typical applications include motor control (BLDC, PMSM, FOC), digital power supplies and PFC stages, industrial automation sensors, and audio or general-purpose signal conditioning where the 10/12-bit ADC channels feed control algorithms.
Design-wise, all VDD and VSS pins must be connected for reliable operation and programming; multiple PGECx/PGEDx ICSP pairs exist and must be used as matched pairs per the programming specification.
This page synthesizes distributor pricing, drop-in alternatives, pinout guidance, and practical design notes not consolidated in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho DSPIC33FJ128GP306AT-I/MR — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
DSPIC33FJ128GP306A-I/MR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC33FJ128GP306AT-E/MR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC33FJ128GP306-I/MR
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC33FJ128GP306-E/MR
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC33FJ64GP306AT-I/MR
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC33FJ128GP306AT-I/MR Tỷ lệ tối đa & tính chất điện
| Core Architecture | 16-bit dsPIC33F DSC |
| Max CPU Speed | 40 MIPS (40 MHz) |
| Program Memory | 128 KB (128K x 8) Flash |
| RAM Size | 16 KB (16K x 8) |
| Operating Voltage | 3.0 V to 3.6 V |
| General Purpose I/O | 53 I/O |
| ADC Resolution | 10-bit / 12-bit |
| ADC Channels | 18 channels |
| Hộp | 64-VQFN (9x9 mm), exposed pad |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40C to +85C (I grade) |
| Packaging | Tape & Reel (TR) |
| DSP Features | Barrel shifter, single-cycle MAC, boundary scan |
| Temperature Qualification | AEC-Q100 qualified variant available (DSPIC33FJ128GP306AT-E/MR) |
| Programming Interface | ICSP (multiple PGECx/PGEDx pairs) |
Cấu hình chân DSPIC33FJ128GP306AT-I/MR
| Chân 1 | VDD — Power supply (3.0V to 3.6V) |
| Chân 2 | AN0/VREF+/CN2/RB0 — Analog input 0 / positive voltage reference |
| Chân 3 | AN1/VREF-/CN3/RB1 — Analog input 1 / negative voltage reference |
| Chân 4 | AN2/SS1/LVDIN/CN4/RB2 — Analog input 2 / SPI slave select 1 |
| Chân 5 | AN3/INDX/CN5/RB3 — Analog input 3 / encoder index |
| Chân 6 | AN4/QEA/IC7/CN6/RB4 — Analog input 4 / encoder phase A / capture 7 |
| Chân 7 | AN5/QEB/IC8/CN7/RB5 — Analog input 5 / encoder phase B / capture 8 |
| Chân 8 | AN6/OCFA/RB6 — Analog input 6 / output-compare fault A |
| Chân 9 | AN7/RB7 — Analog input 7 |
| Chân 10 | VSS — Ground |
| Chân 11 | OSC1/CLKI/RC12 — Oscillator input / external clock |
| Chân 12 | OSC2/CLKO/RC15 — Oscillator output / clock output |
| Chân 13 | VDD — Power supply |
| Chân 14 | SOSCI/T2CK/RC13 — Secondary oscillator input / Timer2 clock |
| Chân 15 | SOSCO/T1CK/CN0/RC14 — Secondary oscillator output / Timer1 clock |
| Chân 16 | MCLR — Master clear (reset) / programming voltage |
| Chân 17 | AN8/T5CK/RB8 — Analog input 8 / Timer5 clock |
| Chân 18 | AN9/T3CK/RB9 — Analog input 9 / Timer3 clock |
| Chân 19 | AN10/TXCK/RB10 — Analog input 10 / CAN transmit clock |
| Chân 20 | AN11/RXCK/RB11 — Analog input 11 / CAN receive clock |
| Chân 21 | AN12/SCK2/RB12 — Analog input 12 / SPI2 clock |
| Chân 22 | AN13/SDO2/RB13 — Analog input 13 / SPI2 data out |
| Chân 23 | AN14/SDI2/RB14 — Analog input 14 / SPI2 data in |
| Chân 24 | AN15/SS2/RB15 — Analog input 15 / SPI2 slave select |
| Chân 25 | VSS — Ground |
| Chân 26 | VDD — Power supply |
| Chân 27 | PGED3/PMA0/EMUD3/RG0 — ICSP data 3 / parallel master address 0 |
| Chân 28 | PGEC3/PMA1/EMUC3/RG1 — ICSP clock 3 / parallel master address 1 |
| Chân 29 | PMA2/RG2 — Parallel master address 2 |
| Chân 30 | PMA3/RG3 — Parallel master address 3 |
| Chân 31 | PMA4/RG4 — Parallel master address 4 |
| Chân 32 | PMA5/RG5 — Parallel master address 5 |
| Chân 33 | SDO1/EMDC/RP44/RF6 — SPI1 data out / remappable pin RP44 |
| Chân 34 | SCK1/EMDIO/RP45/RF7 — SPI1 clock / remappable pin RP45 |
| Chân 35 | U1TX/RP46/RF8 — UART1 transmit / remappable pin RP46 |
| Chân 36 | U1RX/RP47/RF9 — UART1 receive / remappable pin RP47 |
| Chân 37 | SDI1/RP48/RF10 — SPI1 data in / remappable pin RP48 |
| Chân 38 | RP49/RF11 — Remappable peripheral pin RP49 |
| Chân 39 | RP50/RF12 — Remappable peripheral pin RP50 |
| Chân 40 | RP51/RF13 — Remappable peripheral pin RP51 |
| Chân 41 | SDI2/RP52/RF2 — SPI2 data in / remappable pin RP52 |
| Chân 42 | RP53/RF3 — Remappable peripheral pin RP53 |
| Chân 43 | C2RX/RP54 — ECAN2 receive / remappable pin RP54 |
| Chân 44 | C1TX/RP55 — ECAN1 transmit / remappable pin RP55 |
| Chân 45 | VSS — Ground |
| Chân 46 | VDD — Power supply |
| Chân 47 | TDI/RP56 — JTAG data in / remappable pin RP56 |
| Chân 48 | TDO/RP57 — JTAG data out / remappable pin RP57 |
| Chân 49 | TMS/RP58 — JTAG mode select / remappable pin RP58 |
| Chân 50 | TCK/RP59 — JTAG clock / remappable pin RP59 |
| Chân 51 | PMD0/RE0 — Parallel master data 0 |
| Chân 52 | PMD1/RE1 — Parallel master data 1 |
| Chân 53 | PMD2/RE2 — Parallel master data 2 |
| Chân 54 | PMD3/RE3 — Parallel master data 3 |
| Chân 55 | PMD4/RE4 — Parallel master data 4 |
| Chân 56 | PMD5/RE5 — Parallel master data 5 |
| Chân 57 | PMD6/RE6 — Parallel master data 6 |
| Chân 58 | PMD7/RE7 — Parallel master data 7 |
| Chân 59 | PMRD/PMWR/RE8 — Parallel master read/write strobe |
| Chân 60 | PMCS1/RE9 — Parallel master chip select 1 |
| Chân 61 | PMA15/RC1 — Parallel master address 15 |
| Chân 62 | PMA14/RC2 — Parallel master address 14 |
| Chân 63 | AVDD — Analog power supply |
| Chân 64 | AVSS — Analog ground |
Ứng dụng tiêu biểu
DSPIC33FJ128GP306AT-I/MR phù hợp cho 6 Áp dụngs: BLDC / PMSM Motor Control, Digital Power Supplies and PFC, Industrial Automation and Sensing, Audio Signal Processing, Embedded Control and IoT Nodes, Test and Measurement Instrumentation.
BLDC / PMSM Motor Control
The DSPIC33FJ128GP306AT-I/MR fits sensorless and sensored motor drives because its 40 MIPS 16-bit DSP core executes field-oriented control (FOC) at loop rates of 10-20 kHz with single-cycle MAC operations. The 18-channel 10/12-bit ADC samples multiple phase currents and the DC bus within one PWM period, and PWM outputs drive a three-phase inverter through gate drivers. Placed between the current-sense op-amps and the gate-driver stage, the DSC replaces analog control loops with digital compensation, improving efficiency and enabling field weakening. The 53 GPIO also handle hall-sensor inputs, encoder quadrature signals, and fault protection, consolidating the complete drive controller into one 64-pin VQFN package.
Được đề xuất
Digital Power Supplies and PFC
For switch-mode power supplies, LLC converters, and power-factor-correction stages, the DSPIC33FJ128GP306AT-I/MR offers the fast ADC (10/12-bit, 18 channels) and 40 MIPS throughput required for voltage- and current-mode digital control at switching frequencies of 100-500 kHz with cycle-by-cycle current limiting. The controller reads output voltage and inductor current through the ADC, executes the compensation loop in DSP-optimized code, and updates PWM duty via high-resolution PWM peripherals. Compared with fixed-function analog controllers, this DSC enables adaptive dead-time, soft-start sequencing, and telemetry over UART/CAN. Its 3.0-3.6V supply and industrial -40C to +85C rating match typical AC/DC and DC/DC power environments.
Được đề xuất
Industrial Automation and Sensing
In factory automation nodes, the DSPIC33FJ128GP306AT-I/MR acts as the local intelligence for sensor conditioning, actuator control, and field-bus communication. The 18-channel ADC digitizes pressure, temperature, and bridge-sensor outputs; the DSP barrel shifter and MAC accelerate filtering and FFT-based diagnostics; and 53 GPIO drive relays, indicator LEDs, and optocoupled I/O. UART and SPI peripherals interface to RS-485 transceivers or industrial Ethernet gateways, while 128 KB Flash stores both the application and a protocol stack with room for field firmware updates. The -40C to +85C industrial temperature range and 3.0-3.6V supply fit standard 24V-panel-powered designs through a 3.3V regulator.
Được đề xuất
Audio Signal Processing
The DSPIC33FJ128GP306AT-I/MR serves embedded audio products such as active speakers, mixers, and acoustic processors. Its 40 MIPS core with DSP multiply-accumulate instructions implements biquad IIR filters, dynamic range compression, and acoustic echo cancellation on 16-bit audio streams. The 10/12-bit ADC captures control voltages and microphone signals, while SPI connects to external audio codecs for higher-fidelity conversion. With 128 KB Flash, developers store multiple preset banks and a parameter-control protocol alongside the processing code, and the 16 KB RAM buffers audio frames with headroom. The 64-pin VQFN 9x9 mm package integrates the complete processing engine into compact consumer or pro-audio hardware.
Được đề xuất
Embedded Control and IoT Nodes
As a general-purpose embedded controller, the DSPIC33FJ128GP306AT-I/MR consolidates sensing, control, and communication in IoT and connected-device nodes. The 53 GPIO handle button matrices, display interfaces, and peripheral chip-selects; UART/SPI/I2C links to wireless modules and sensors; and the DSP engine performs local analytics such as RMS computation and threshold detection before transmitting results. The 128 KB Flash accommodates a full application plus an OTA-update bootloader, and self-programmable Flash enables field firmware upgrades. ICSP programming through any PGECx/PGEDx pair supports in-circuit production flashing, while the 3.0-3.6V rail directly matches common 3.3V system supplies.
Được đề xuất
Test and Measurement Instrumentation
In handheld meters, dataloggers, and bench instruments, the DSPIC33FJ128GP306AT-I/MR provides the processing backbone for measurement sequencing and computation. The 18-channel 10/12-bit ADC multiplexes multiple measurement inputs; DSP instructions compute RMS, power factor, and harmonic content in real time at 40 MIPS; and boundary-scan support (JTAG) assists board-level diagnostics during production test. The 128 KB Flash and 16 KB RAM store calibration tables, logging buffers, and a menu-driven UI stack, while the 53 GPIO drive keypads and segment or dot-matrix displays. The industrial temperature rating and 9x9 mm VQFN package suit both portable battery-powered and rack-mounted instrument designs.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho DSPIC33FJ128GP306AT-I/MR — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | DSPIC33FJ128GP306A-I/MR | DSPIC33FJ128GP306AT-E/MR | DSPIC33FJ64GP306AT-I/MR |
|---|---|---|---|---|
| Package | 64-VQFN (MR) 9x9 mm | 64-VQFN (MR) - same | 64-VQFN (MR) - same | 64-VQFN (MR) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 40 MIPS | 40 MHz | 40 MHz | 40 MIPS |
| Program Memory (Flash) | 128 KB | 128 KB | 128 KB | 64 KB |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB |
| Operating Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (I) | -40C to +85C | -40C to +125C (AEC-Q100) | -40C to +85C |
| GPIO Count | 53 I/O | 53 I/O | 53 I/O | 53 I/O |
Bảo phân biệt quan trọng
- Large memory in mid-range package (vsDSPIC33FJ64GP306AT-I/MR)
- Industrial cost optimization (vsDSPIC33FJ128GP306AT-E/MR)
- Same footprint with enhanced die (vsDSPIC33FJ128GP306A-I/MR)
Ghi chú thiết kế
All VDD and VSS pins must be connected, and AVDD/AVSS must also be powered for the ADC to function. Per Microchip programming guidance, multiple PGECx/PGEDx ICSP pairs exist on this device - you must use any pair as a matched pair (e.g., if PGEC2 is used for ICSPCLK, PGED2 must carry ICSPDAT). Leaving even one power or programming pin unconnected can cause programming failure or erratic operation. Plan the programming connector early in layout.
Estimated: with a 3.3V rail and typical dsPIC33F active currents on the order of tens of mA at 40 MIPS, power dissipation remains below ~0.2 W, so the 9x9 mm VQFN exposed pad needs no heatsink; however, solder the exposed thermal pad to a ground pour array of vias for the best thermal and ground integrity. Decouple every VDD pin with 0.1 uF ceramics placed within 2-3 mm, plus one bulk 4.7-10 uF capacitor, and isolate AVDD through an RC filter (e.g., 10 ohm + 1 uF) for ADC noise performance.
Keep the oscillator traces (OSC1/OSC2, SOSCI/SOSCO) short and guard them with ground. For EMC, route the PGD/PGC programming pins to a header even in production boards - in-field firmware updates rely on ICSP. Remappable RPxx pins allow peripheral placement after routing, which simplifies late layout changes; assign UART/SPI/PWM functions in software rather than forcing the PCB to fixed peripheral pins.
Verify junction temperature for extended-ambient enclosures: with an estimated theta_JA in the 30-40 C/W range for a well-soldered VQFN-64 exposed pad, a 0.2 W dissipation yields roughly a 6-8 C junction rise over ambient - well within the -40C to +85C industrial rating. Recheck with the datasheet theta_JA table if the board uses minimal copper or the enclosure is sealed.
Thông tin tuân thủ
The -I target part is the industrial temperature grade; AEC-Q100 (TS 16949) qualification applies to the -E variant (DSPIC33FJ128GP306AT-E/MR) per Microchip USA data. RoHS/REACH status for this specific MPN was not stated in the provided data.
