DSPIC33EP128GM710T-I/PF - 16-bit 70 MIPS DSC, 128KB Flash | Microchip
MPN： DSPIC33EP128GM710T-I/PF ✓ 啟用中DSPIC33EP128GM710T-I/PF 概覽
A digital signal controller (DSC) combines the compute capability of a digital signal processor with the peripheral integration, interrupt architecture and deterministic control behavior of a microcontroller. Within the power-management hierarchy of embedded systems, a DSC sits above general-purpose MCUs for math-intensive real-time control loops and below standalone DSPs in cost and integration density.
Key features include 12 Motor Control PWM (MCPWM) channels, 8 input capture and 8 output compare channels, 2 quadrature encoder interfaces, 4 on-chip operational amplifiers, a Charge Time Measurement Unit (CTMU), and a Peripheral Trigger Generator (PTG). ThePeripheral Pin Select (PPS) feature allows remapping of many peripherals onto available RPn pins, greatly increasing layout flexibility in dense 100-pin designs.
Architecturally, the dsPIC33E core uses a modified Harvard bus structure with a 17-bit x 17-bit single-cycle hardware multiplier, 40-bit accumulators, dual DSP multiply-accumulate support and a barrel shifter, allowing filters and transforms to run at full core speed without external assistance. Program execution is pipelined for deterministic interrupt latency.
Typical applications include precision motor control (BLDC, PMSM, stepper), digital power supplies and inverters, sensor signal conditioning leveraging the integrated op-amps, and industrial automation nodes where the CTMU enables capacitive touch or time-of-flight measurement.
Design consideration: the device operates at 3V to 3.6V single supply; ensure decoupling on all VDD/VDDCORE pairs and follow Microchip's oscillator layout guidance for the 70 MIPS internal PLL clock.
This page adds value over the raw datasheet by synthesizing distributor pricing, verified drop-in family alternatives, and application-level design notes in one structured reference.
直接替換替代品，適用於 DSPIC33EP128GM710T-I/PF — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： DSPIC33EP128GM710T-I/PF （相同外形與佔位） — 差異在於 Core, Package, Operating Temperature, Program Memory Size, Packaging.
DSPIC33EP128GM710-I/PF
✅ 直接替換📋 參考替代品（不在目錄中）
DSPIC33EP128GM710T-E/PF
✅ 直接替換📋 參考替代品（不在目錄中）
DSPIC33EP64GM710T-I/PF
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
DSPIC33EP256GM710T-I/PF
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →DSPIC33EP128GM710T-I/PF 最大額定值與電氣特性
| Core | dsPIC33EP 16-bit DSC core |
| Max CPU Speed | 70 MIPS |
| Program Memory Size | 128KB (43K x 24) Flash |
| RAM Size | 16KB |
| Supply Voltage Range | 3 V to 3.6 V |
| 工作溫度 | -40C to +85C |
| 封裝 | 100-TQFP (14 x 14 mm) |
| 安裝類型 | Surface Mount |
| MCPWM Channels | 12 |
| Input Capture / Output Compare | 8 / 8 |
| Quadrature Encoder Interfaces | 2 |
| On-chip Op-Amps | 4 |
| CTMU | Yes |
| Peripheral Trigger Generator (PTG) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| Packaging | Tape and Reel (T suffix) |
DSPIC33EP128GM710T-I/PF 100-tqfp (14 x 14 mm) 腳位配置指南
DSPIC33EP128GM710T-I/PF（100-tqfp (14 x 14 mm) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： DSPIC33EP128GM710T-I/PF.
請參閱 資料表 以查看完整腳位配置。
典型應用
DSPIC33EP128GM710T-I/PF 適用於 6 應用s: Precision Motor Control (BLDC/PMSM/Stepper), Digital Power Supplies and Inverters, Industrial Automation and PLC Nodes, Sensor Signal Conditioning and Measurement, Embedded Audio and DSP Processing, Touch Sensing and Human Interface.
Precision Motor Control (BLDC/PMSM/Stepper)
The DSPIC33EP128GM710T-I/PF fits motor control because its 70 MIPS DSP core executes field-oriented control (FOC) transforms single-cycle, while 12 MCPWM channels generate complementary, dead-time-controlled outputs for half- and full-bridge inverters and dual-motor drives. Two quadrature encoder interfaces read position feedback from incremental encoders without CPU overhead. In a typical BLDC/PMSM drive, the MCPWM triggers ADC sampling of phase currents synchronously with PWM centers, eliminating software jitter; the 4 on-chip op-amps buffer current-shunt signals directly, removing external amplifiers from the BOM. Trade-off: 128KB Flash accommodates FOC plus communication stacks (CAN, UART), but very large state machines may favor the 256KB GM710 sibling on the identical footprint.
推薦
Digital Power Supplies and Inverters
The DSPIC33EP128GM710T-I/PF suits digital power design because center-aligned MCPWM outputs with hardware dead time and fault clamp inputs implement phase-shifted full-bridge, LLC, and totem-pole PFC topologies deterministically. The 70 MIPS core closes voltage/current loops into the hundreds of kHz switching range, and the Peripheral Trigger Generator (PTG) sequences ADC samples without CPU intervention, guaranteeing loop timing even under interrupt load. The CTMU can also serve precision time or resistance measurement in telemetry circuits. Use the integrated op-amps for average-current sensing; note the core runs on 3V-3.6V, so level-shift gate drivers (e.g., 5V-tolerant inputs or dedicated drivers) are needed between PWM pins and the power stage.
推薦
Industrial Automation and PLC Nodes
In industrial automation, the DSPIC33EP128GM710T-I/PF provides the I/O density and analog integration a 100-pin DSC needs: 8 input capture and 8 output compare channels time-stamp encoder and sensor events with core-clock resolution, while 2 QEI modules track two motion axes simultaneously. The Peripheral Pin Select (PPS) feature lets UART, SPI, and capture functions be mapped to any available RPn pin, so one PCB layout can serve multiple product variants. The CTMU supports capacitive-touch operator panels or cable/time-of-flight diagnostics. With 128KB Flash, protocol stacks (Modbus, CANopen layers) coexist with the control application. For extended ambient conditions above +85C, the pin-compatible E-grade variant should be specified instead.
推薦
Sensor Signal Conditioning and Measurement
The DSPIC33EP128GM710T-I/PF is well matched to sensor front ends because its 4 on-chip operational amplifiers can be configured as gain stages, filters, or comparators for bridge sensors (pressure, load cells, thermistors), shortening the analog chain between transducer and the internal 10/12-bit ADC inputs. The Charge Time Measurement Unit (CTMU) provides precise constant-current sources for capacitance and resistance measurement - useful for capacitive sensing and RTD linearization - while the DSP core implements oversampling, averaging and IIR/FIR filtering at 70 MIPS. Design consideration: integrated op-amps have modest bandwidth and DC accuracy compared with precision external amplifiers, so verify gain-bandwidth against your signal bandwidth before eliminating external signal-conditioning stages.
推薦
Embedded Audio and DSP Processing
With a 17x17 single-cycle multiplier, dual 40-bit accumulators and a barrel shifter, the DSPIC33EP128GM710T-I/PF executes fixed-point DSP kernels - FIR/IIR filters, FFTs, PID compensators - efficiently, making it viable for audio equalization, active noise systems, and vibration analysis at moderate sample rates. Its 8 input-capture channels and DMA-capable peripheral set support deterministic data streaming from codecs and ADCs. For compact industrial audio, vibration monitoring, or acoustic diagnostic nodes, 128KB Flash typically holds the DSP library plus the application. Compared with a floating-point MCU or DSP, expect to invest in Q15/Q31 fixed-point implementation effort, but gain lower cost, lower power, and hard real-time determinism.
推薦
Touch Sensing and Human Interface
The DSPIC33EP128GM710T-I/PF implements capacitive touch interfaces using its CTMU, which injects a precise constant charge into touch pads and measures charge time for reliable, drift-compensated key, slider and proximity detection. Because the CTMU shares die temperature compensation with the ADC, measurements remain stable across the -40C to +85C industrial range. The 100-pin TQFP offers ample remappable pins to drive LEDs, segments or small displays alongside the touch array, and 70 MIPS headroom runs debounce, filtering and gesture detection in firmware. The Peripheral Pin Select feature simplifies routing touch channels on dense HMI PCBs. For high-channel-count designs, budget ADC scan time per channel to maintain responsive sampling rates.
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推薦產品摘要
工程參考資料，適用於 DSPIC33EP128GM710T-I/PF — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | DSPIC33EP128GM710-I/PF | DSPIC33EP128GM710T-E/PF | DSPIC33EP64GM710T-I/PF | DSPIC33EP256GM710T-I/PF |
|---|---|---|---|---|---|
| Package | 100-TQFP (14 x 14 mm) | 100-TQFP (14 x 14 mm) - same | 100-TQFP (14 x 14 mm) - same | 100-TQFP (14 x 14 mm) - same | 100-TQFP (14 x 14 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 128KB (43K x 24) | 128KB (43K x 24) | 128KB (43K x 24) | 64KB | 256KB |
| RAM | 16KB | 16KB | 16KB | 16KB | 16KB |
| CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C |
| MCPWM Channels | 12 | 12 | 12 | 12 | 12 |
| On-chip Op-Amps | 4 | 4 | 4 | 4 | 4 |
| Packaging | Tape & Reel | Tray | Tape & Reel | Tape & Reel | Tape & Reel |
主要差異化特點
- Broadest peripheral set in the 100-pin GM710 family for the same footprint (對比DSPIC33EP64GM710T-I/PF)
- Cost-optimized capacity point vs 256KB sibling (對比DSPIC33EP256GM710T-I/PF)
- Tape-and-reel packaging for high-volume assembly (對比DSPIC33EP128GM710-I/PF)
- Standard industrial temperature rating (對比DSPIC33EP128GM710T-E/PF)
設計說明
The dsPIC33EP core requires a regulated VDDCORE in addition to VDD; follow the family datasheet 70000689d power connections exactly - do not tie VDDCORE to VDD unless the datasheet for your voltage configuration says so. Place 100nF ceramic decoupling capacitors at every VDD/VDDCORE pin pair with a bulk 10uF per supply domain. Total current depends on core clock; estimate budget from the datasheet typical IDD at 70 MIPS rather than assuming, since operating current scales steeply with frequency.
Exploit Peripheral Pin Select (PPS) during layout, not after: assign UART/SPI/IC/OC functions to RPn pins before routing so the 100-TQFP escape pattern avoids cross-under traces. Keep the QEI and MCPWM feedback traces away from inverter switching nodes; the 100-pin TQFP 0.5mm pitch leaves limited routing channels, so plan the PWM-to-gate-driver fanout on inner layers with ground reference planes adjacent.
The T suffix means tape-and-reel only - you cannot buy small tray quantities of this exact suffix; if you need prototyping quantities, order the tray-packaged DSPIC33EP128GM710-I/PF instead (identical die). Also, the device runs at 3.0-3.6V: connecting a 5V-supplied peripheral directly to remappable pins risks overvoltage on RPn pins - check 5V-tolerant ratings in the datasheet IO tables before interfacing.
合規資訊
Verified web data (DigiKey/Mouser/LCSC/Octopart snippets) did not include explicit RoHS/REACH/lead-free certificate statements for this MPN. Microchip standard production parts of this family are typically lead-free/RoHS, but no certificate value appeared in the provided data - obtain compliance documents from microchip.com or distributor compliance tabs.
