DSPIC33EP512GM304T-I/PT - 16-bit 70 MIPS DSC 512KB | Microchip
部品番号: DSPIC33EP512GM304T-I/PT ✓ 生産中DSPIC33EP512GM304T-I/PT 概要
A digital signal controller combines the computational throughput of a DSP with the peripheral integration and ease of use of a microcontroller. Within the power-management hierarchy of embedded systems, a DSC sits between a general-purpose MCU and a dedicated DSP, providing deterministic real-time control loops for power conversion and motor drive. The dsPIC33EP family from Microchip Technology is a widely adopted 16-bit DSC platform for these tasks.
Key features of the GM304 variant include the enhanced dsPIC33E core running at up to 70 MIPS, 12-channel Motor Control PWM (MCPWM), 8 input capture and 8 output compare channels, 2 QEI modules for encoder feedback, an integrated Charge Time Measurement Unit (CTMU) for capacitive touch and precision timing, a Peripheral Trigger Generator (PTG), and 4 DMA channels that offload data movement from the CPU.
The integrated 4-op-amp module is a differentiating feature: it can be used as programmable-gain amplifiers, filters, or comparators ahead of the ADC, reducing external component count and BOM cost in current-sensing signal chains for brushless DC (BLDC) and permanent-magnet synchronous motor (PMSM) drives.
Typical applications include precision motor control (FOC for BLDC/PMSM), digital power supplies (PFC, LLC), industrial automation, and embedded sensing systems that benefit from the CTMU and DSP engine (MAC, DSP multiply) instructions.
Design consideration: the device operates from a 3.3 V supply, so level shifting is required when interfacing 5 V peripherals, and Flash self-write endurance should be checked against log-write frequency.
This page synthesizes distributor availability, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet.
ドロップイン代替品: DSPIC33EP512GM304T-I/PT — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: DSPIC33EP512GM304T-I/PT （同一形状・フットプリント） — 相違点: Operating Temperature, Package, Core Architecture, RoHS Status, Program Memory (Flash).
DSPIC33EP512GM704-I/PT
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
DSPIC33EP256GM304-I/PT
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →DSPIC33EP512GP304T-I/PT
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
DSPIC33EP256GP504-I/PT
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →DSPIC33EP32GP504T-I/PT
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →DSPIC33EP256MC504-I/PT
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →DSPIC33EP512GM304T-I/PT 最大定格＆電気的特性
| Core Architecture | 16-bit dsPIC33E DSC core |
| Max Performance | 70 MIPS |
| Max Clock Frequency | 60 MHz (per Microchip USA listing); 70 MIPS core performance |
| Flash Program Memory | 512 KB (170K x 24) |
| RAM | 16 KB |
| 電源電圧 | 3.3 V |
| Motor Control PWM (MCPWM) | 12 channels |
| Input Capture / Output Compare | 8 IC / 8 OC |
| Quadrature Encoder Interfaces | 2 QEI |
| On-chip Op-Amps | 4 |
| CTMU | Charge Time Measurement Unit included |
| PTG | Peripheral Trigger Generator included |
| DMA Channels | 4 |
| External Interrupts | 5 |
| パッケージ | 44-pin TQFP (10x10 mm), 0.8 mm terminal pitch |
| JESD-30 Code | S-PQFP-G44 |
| 動作温度 | -40C to +85C (I grade) |
| 実装タイプ | Surface Mount |
DSPIC33EP512GM304T-I/PT 44-pin tqfp (10x10 mm), 0.8 mm terminal pitch ピン配置ガイド
DSPIC33EP512GM304T-I/PT (44-pin tqfp (10x10 mm), 0.8 mm terminal pitch パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: DSPIC33EP512GM304T-I/PT.
詳細は データシート をご参照ください。
主な用途
DSPIC33EP512GM304T-I/PT の用途: 6 件s: BLDC / PMSM Motor Control (FOC), Digital Power Supplies (PFC, LLC, DC-DC), Industrial Automation and Motion Control, Sensor Signal Processing and Embedded Sensing, Power Inverters and Solar Applications, Automotive-Adjacent and E-Mobility Subsystems.
BLDC / PMSM Motor Control (FOC)
The DSPIC33EP512GM304T-I/PT is purpose-built for field-oriented control of brushless DC and permanent-magnet synchronous motors. Its 12-channel MCPWM module generates three-phase complementary PWM with hardware dead-time insertion, while the 2 QEI modules decode incremental encoder position at full motor speed. The 70 MIPS DSP core executes single-cycle MAC instructions, sustaining 10-20 kHz current-loop rates with margin. The 4 integrated op-amps amplify shunt current measurements ahead of the ADC, removing external amplifier ICs. Placed between the gate-driver inputs and the current-sense shunts, this DSC replaces a separate MCU plus signal-conditioning solution, cutting BOM count while maintaining sub-microsecond interrupt latency for fault shutdown.
おすすめ
Digital Power Supplies (PFC, LLC, DC-DC)
In digital power conversion, the DSPIC33EP512GM304T-I/PT provides high-resolution PWM output compare channels and fast ADC triggering needed for peak-current-mode and voltage-mode loops in PFC stages, LLC resonant converters, and telecom rectifiers. The 70 MIPS core with DSP MAC instructions implements PI and notch compensators deterministically, and the PTG (Peripheral Trigger Generator) automates ADC-PWM synchronization without CPU intervention, reducing loop jitter. The 4 DMA channels stream sampled current and voltage data to RAM without stealing cycles. Because the device runs from a 3.3 V supply and features 5 V tolerant I/O, it interfaces directly with typical gate drivers and feedback networks in isolated and non-isolated power stages.
おすすめ
Industrial Automation and Motion Control
For industrial automation nodes, the DSPIC33EP512GM304T-I/PT combines deterministic 70 MIPS real-time control with rich communication-capable peripherals and Peripheral Pin Select, letting engineers map UART, SPI, and I2C to any available pins for flexible PCB routing in tight control cabinets. The 512 KB Flash accommodates complex motion profiles, and the 2 QEI modules accept feedback from two independent motor axes. The CTMU supports capacitive touch panels for operator interfaces and precision time-of-flight measurement. In stepper and servo drives, the DSP engine executes feed-forward compensation at fixed intervals, and the industrial -40C to +85C temperature grade ensures reliable operation on factory floors without forced cooling in most sealed enclosures.
おすすめ
Sensor Signal Processing and Embedded Sensing
The DSPIC33EP512GM304T-I/PT fits sensor aggregation systems where analog conditioning and DSP filtering must coexist on one chip. The 4 on-chip op-amps can be configured as programmable-gain stages, filters, or comparators for bridge sensors such as load cells and pressure transducers, feeding the internal ADC directly. The CTMU measures capacitance for moisture, level, and touch sensing with picosecond-scale charge timing. After acquisition, the DSP core applies FIR and FFT filtering using single-cycle MAC instructions, enabling real-time spectral analysis of vibration or acoustic signals. With 16 KB RAM, moderate-length buffers are supported, and the 4 DMA channels continuously move ADC results to memory without CPU intervention, sustaining glitch-free streaming acquisition.
おすすめ
Power Inverters and Solar Applications
Grid-tied and off-grid inverter designs benefit from the DSPIC33EP512GM304T-I/PT combination of high-resolution PWM, deterministic control loops, and integrated analog front-ends. The 12 MCPWM channels drive both the DC-DC boost (MPPT) stage and the DC-AC inverter bridge from a single device, with hardware dead-time and fault input protection. The 70 MIPS core runs MPPT perturb-and-observe or incremental-conductance algorithms plus grid-synchronization (PLL) code concurrently. The 4 op-amps condition AC current and voltage sense signals for the ADC, enabling overcurrent protection within one PWM cycle. The PTG automates repetitive trigger sequences, ensuring fixed sampling instants that keep the current-control loop jitter low and THD acceptable.
おすすめ
Automotive-Adjacent and E-Mobility Subsystems
While this industrial-grade (I, -40C to +85C) part is not AEC-Q100 qualified, it serves automotive-adjacent subsystems such as auxiliary pumps, throttle-by-wire prototypes, thermal-management fans, and small traction helpers in low-speed vehicles. The 12-channel MCPWM with complementary outputs and dead-time drives three-phase or brushed motor bridges; the 2 QEI modules accept position feedback from pedals or actuators; and the 5 external interrupts implement fast fault shutdown paths. The 512 KB Flash holds control law plus diagnostic code, and the CTMU supports capacitive touch controls in sealed user panels. For full automotive production use, designers should select the AEC-Q100 qualified dsPIC33EP variants and re-verify temperature grade requirements before design freeze.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: DSPIC33EP512GM304T-I/PT — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | DSPIC33EP512GM704-I/PT | DSPIC33EP256GM304-I/PT | DSPIC33EP256GP504-I/PT | DSPIC33EP32GP504T-I/PT |
|---|---|---|---|---|---|
| Package | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 512 KB (170K x 24) | 512 KB (170K x 24) | 256 KB | 256 KB | 32 KB |
| Core Performance | 70 MIPS (16-bit dsPIC33E) | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| MCPWM Channels | 12 | 12 | 12 | None (GP peripherals) | None (GP peripherals) |
| On-chip Op-Amps | 4 | 4 | 4 | None | None |
| Quadrature Encoder Interfaces | 2 | 2 | 2 | None | None |
主な差別化要因
- Integrated 4-op-amp analog front end （vs DSPIC33EP256GP504-I/PT)
- Double the RAM for buffering and control structures （vs DSPIC33EP512GM704-I/PT)
- Full 512 KB Flash with complete motor-control suite （vs DSPIC33EP256GM304-I/PT)
設計ノート
The device operates from a single 3.3 V rail. Provide one decoupling capacitor (100 nF ceramic) at each VDD/VSS pair placed within 2 mm of the pins, plus 4.7-10 uF bulk capacitance near the supply entry. All VDD/VSS pairs in the 44-TQFP must be connected - omitting a pair is a common cause of intermittent brown-out. If using the internal regulator, the VCAP pin requires the datasheet-specified low-ESR capacitor and must not be loaded externally; an incorrect VCAP capacitor is the most frequent root cause of random resets on dsPIC33E designs.
The 44-TQFP (10x10 mm, 0.8 mm pitch) uses standard gull-wing land patterns per the Microchip package outline drawing; a 0.15 mm-wide trace with 0.1 mm clearance fits between pins. Route the current-sense traces from shunt resistors to the op-amp inputs as a Kelvin pair to exploit the integrated 4-op-amp module. Keep MCLR trace short and include the recommended 10 kOhm pull-up plus 100 Ohm series resistor for ICSP programming compatibility with PICkit and REAL ICE tools.
Peripheral Pin Select (PPS) means most digital peripherals are not on fixed pins; verify Section 11.4 of data sheet 70000689 for RPn assignments and known limitations (some peripherals have restricted pin choices) before locking the schematic. Do not confuse the /PT (44-TQFP) and /ML (QFN) suffixes - they are different footprints. Finally, the I suffix denotes -40C to +85C; for extended temperature or automotive production, select the appropriate qualified variant rather than this industrial-grade part.
コンプライアンス情報
I-grade industrial temperature (-40C to +85C); this part is not an AEC-Q100 automotive-qualified variant. RoHS/REACH status not stated in the captured web data - confirm on the official Microchip product page before release.
