DSPIC33EP256GM706-E/PT - 16-bit 70 MIPS DSC 256KB Flash | Microchip
料号： DSPIC33EP256GM706-E/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $7.35 | $7.35 |
| 10 | $7.05 | $70.50 |
| 100 | $6.75 | $675.00 |
| 500 | $6.5 | $3,250.00 |
| 1,000 | $6.2 | $6,200.00 |
DSPIC33EP256GM706-E/PT 概述
A digital signal controller combines a microcontroller (MCU) with digital signal processor (DSP) capability in a single Harvard-architecture core. In the system hierarchy, the DSC sits above general-purpose MCUs and beside dedicated DSPs, offering deterministic interrupt handling, hardware multiply-accumulate (MAC) and divide units, plus standard embedded peripherals, making the dsPIC33E family a bridge between control and signal processing in a power management IC ecosystem.
Key features of the GM706 variant include integrated analog: four on-chip operational amplifiers for motor-control current sensing, dual quadrature encoder interface (QEI) modules for position feedback, 8 input capture and 8 output compare channels, CAN bus connectivity for industrial and automotive networks, and motor-control (MC) PWM peripherals. These make the part a single-chip solution for field-oriented control (FOC) of PMSM and BLDC motors.
Technically, the dsPIC33EP core executes most instructions in a single cycle at 3.3V, with DSP instructions operating on 40-bit accumulators. The CMOS process, extended-temperature E-grade qualification, and AEC-Q100 automotive screening allow deployment in harsh underhood and factory environments. Flash self-programming supports field firmware updates, and 3.0V to 3.6V supply operation aligns with standard 3.3V industrial rails.
Typical applications include precision motor control (servo drives, robotics, e-mobility auxiliaries), industrial automation with CAN networking, digital power supplies, and sensor signal conditioning that exploits the four integrated op-amps to reduce external component count.
Design consideration: budget the 3.3V rail carefully - at 70 MIPS the core current draw is significant, so use a low-ESR bulk capacitor plus 0.1 uF decoupling at each VDD/VSS pair, and verify Flash endurance limits if you plan frequent in-field reprogramming.
This page synthesizes distributor pricing, drop-in alternatives within the dsPIC33EP family, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： DSPIC33EP256GM706-E/PT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： DSPIC33EP256GM706-E/PT （相同外形与封装尺寸） ——差异在于 Package, Quadrature Encoder Interfaces, Qualification, Operating Temperature, RAM.
快速对比工具——选择替代料号进行并排对比：
DSPIC33EP256GM706-I/PT
✅ 直接替换✓ 有现货
$3.26 / 个
查看数据手册 →DSPIC33EP256GM606-E/PT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33EP128GM706-E/PT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$5.72 / 个
查看数据手册 →DSPIC33EP128GM306-E/PT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$6.15 / 个
查看数据手册 →DSPIC33EP256GM306-E/PT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$5.3 / 个
查看数据手册 →DSPIC33EP256GM706-E/PT 最大额定值与电气特性
| Core Architecture | 16-bit dsPIC Harvard |
| Max CPU Speed | 70 MIPS |
| Program Memory (Flash) | 256 KB (85.5K x 24) |
| RAM | 16 KB |
| Supply Voltage Range | 3 V to 3.6 V |
| 工作温度 | -40C to +125C (E grade) |
| 封装 | 64-TQFP (10x10 mm) |
| 安装类型 | Surface Mount |
| Qualification | AEC-Q100 automotive |
| Input Capture / Output Compare | 8 / 8 |
| Quadrature Encoder Interfaces | 2 |
| On-chip Operational Amplifiers | 4 |
| Motor Control PWM | 12 MC channels |
| Packaging | Tray |
DSPIC33EP256GM706-E/PT 64-tqfp (10x10 mm) 引脚配置指南
DSPIC33EP256GM706-E/PT（64-tqfp (10x10 mm) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： DSPIC33EP256GM706-E/PT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DSPIC33EP256GM706-E/PT 适用于 6 应用s: Precision Motor Control (FOC Servo Drives), Automotive Auxiliary Motor Control, Industrial Automation and CAN Networking Nodes, Digital Power Supplies and Inverters, Sensor Signal Conditioning and Data Acquisition, Robotics and E-mobility Motion Systems.
Precision Motor Control (FOC Servo Drives)
The DSPIC33EP256GM706-E/PT is a single-chip solution for field-oriented control of PMSM and BLDC motors: its 70 MIPS DSP core executes the current, speed, and position loops at tens of kHz, 12 motor-control PWM channels drive a three-phase inverter with dead-time and fault protection, 4 on-chip op-amps amplify low-side shunt currents, and 2 QEI modules read incremental encoders directly. Because all sensing, control, and PWM generation stays on-chip, loop latency is deterministic and board BOM shrinks by eliminating external amplifiers. In a typical 48V servo axis, the DSC sits between the gate-driver inputs and the encoder outputs; unlike a generic MCU plus external DSP, it adds no inter-chip communication delay, but verify PWM fault lockout timing against your inverter dead-time budget.
推荐
Automotive Auxiliary Motor Control
With AEC-Q100 qualification and -40C to +125C E-grade temperature range, the DSPIC33EP256GM706-E/PT targets automotive subsystems such as HVAC blowers, electric water pumps, throttle actuators, and radiator-fan modules. The 64-TQFP survives underhood-adjacent thermal profiles that defeat industrial-grade (+85C) parts, while the integrated CAN interface connects the node to the vehicle bus without an external CAN controller. Firmware uses the same 256 KB Flash for control loops plus J1939/UDS-style diagnostics and flash-resident bootloaders for field updates. Designers should derate the +125C limit for self-heating at 70 MIPS operation and confirm the E-grade qualification certificate from Microchip for the specific program PPAP requirements; pair with an automotive-graded CAN transceiver and a load-dump-protected 3.3V supply.
推荐
Industrial Automation and CAN Networking Nodes
In factory automation, the DSPIC33EP256GM706-E/PT serves as an intelligent actuator or sensor node: the CAN interface links PLC networks, 8 input-capture and 8 output-compare channels handle timing-critical I/O, and 2 QEI modules decode shaft encoders on conveyors or rotary tables. The 256 KB Flash accommodates protocol stacks, state machines, and OTA-style field upgrades via flash self-programming. The four op-amps condition analog sensor signals (pressure, current, position) before the ADC, trimming external signal-chain cost. Compared with a plain PIC16/PIC18 MCU, the DSP engine executes filtering and FFT-based diagnostics (bearing vibration analysis) on-node. A typical node uses a 24V backplane stepped down to 3.3V; place bulk and 0.1 uF decoupling at each VDD pin to ride through motor-driven supply dips.
推荐
Digital Power Supplies and Inverters
Switching power converters need fast, deterministic control loops - the 70 MIPS core with single-cycle MAC executes compensator math and duty-cycle updates within one PWM period at 100-500 kHz switching frequencies. The 12 motor-control PWM channels configure as complementary pairs with dead-time for half-bridges in LLC, totem-pole PFC, or solar micro-inverter stages, while input-capture channels measure current-sensor edges for cycle-by-cycle protection. The E-grade temperature range suits fanless industrial power electronics. Design consideration: the 3.3V controller rail must be isolated or referenced correctly in off-line designs - use digital isolators or optocouplers on PWM/PFC feedback lines, and keep the dsPIC ground plane separate from the power stage until a single-point star ground. Firmware-based control also enables adaptive, load-dependent compensation impossible in fixed analog loops.
推荐
Sensor Signal Conditioning and Data Acquisition
The four on-chip operational amplifiers differentiate the GM706 from lesser family members: they amplify bridge, thermocouple, or shunt signals in-silicon, cutting op-amp BOM cost and board area in multi-channel acquisition systems. The 16-bit DSP engine then applies FIR/IIR filtering, RMS computation, and FFT analysis at 70 MIPS - work that would swamp a conventional 8-bit MCU. Eight input-capture channels timestamp external events (flow-meter pulses, proximity switches), while 256 KB Flash stores calibration tables and long buffers. Typical products include vibration monitors, power-quality meters, and process transmitters on 3V-3.6V rails. Note the op-amps have fixed gain configurations defined by the peripheral architecture - verify gain ranges in the family datasheet against your sensor amplitude, and reserve headroom on the ADC reference for ratiometric measurements.
推荐
Robotics and E-mobility Motion Systems
Multi-axis robots, AGVs, drones, and e-bike controllers benefit from the GM706's blend of dual QEI encoders, dual-CAN-class connectivity, and DSP-grade math: each QEI tracks a joint or wheel encoder, the op-amps read motor phase currents, and the 12-channel motor-control PWM drives two smaller motors or one three-phase axis. The -40C to +125C E-grade tolerates hot e-mobility enclosures, and the 64-TQFP 10x10 footprint fits dense motion-control boards. At 70 MIPS, kinematics, trajectory interpolation, and FOC torque loops coexist on one chip, replacing MCU-plus-DSP two-chip designs. Thermal planning matters: sustained 70 MIPS operation plus I/O current raises junction temperature - estimate dissipation from the datasheet ICC curves at your clock configuration and provide at least 2x2 cm of copper pour under the TQFP thermal pattern.
推荐
推荐产品汇总
工程参考数据： DSPIC33EP256GM706-E/PT ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | DSPIC33EP256GM706-I/PT | DSPIC33EP256GM606-E/PT | DSPIC33EP128GM706-E/PT | DSPIC33EP128GM306-E/PT |
|---|---|---|---|---|---|
| Package | 64-TQFP (10x10 mm), PT | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 256 KB (85.5K x 24) | 256 KB | 256 KB | 128 KB | 128 KB |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| Max CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Temperature Range | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +125C (E grade) | -40C to +125C (E grade) |
| AEC-Q100 Automotive | Qualified | Not qualified (industrial) | Qualified | Qualified | Qualified |
| CAN Support | Yes (enhanced GM706 set) | Yes (identical) | Yes (fewer modules) | Yes (identical) | Yes (fewer modules) |
关键差异点
- Extended temperature and automotive qualification （对比 DSPIC33EP256GM706-I/PT)
- Maximum Flash in the same footprint （对比 DSPIC33EP128GM706-E/PT)
- Full GM706 peripheral set （对比 DSPIC33EP256GM606-E/PT)
- Trade-off: highest cost in family tier （对比 DSPIC33EP128GM306-E/PT)
设计说明
Supply the DSPIC33EP256GM706-E/PT from a regulated 3.0V-3.6V rail (3.3V nominal). Fit the mandatory VCAP capacitor on the internal 2.5V core regulator output exactly as specified in the family datasheet - omitting it is the most common cause of erratic reset behavior on dsPIC33EP designs. At 70 MIPS, ICC scales with clock, so estimate current from the datasheet ICC-vs-MIPS curve and size the 3.3V LDO with margin for I/O switching current on 12 PWM outputs.
Place 0.1 uF ceramic decoupling at every VDD/VSS pin pair with the shortest possible return path to the ground plane, plus one 4.7-10 uF bulk capacitor near the device. Route the four op-amp inputs as short as possible and guard them against PWM switching noise - in motor-drive boards, keep analog ground under the op-amps/ADC separate from the power-stage ground, joining at a single star point. Verified footprints for the 64-TQFP (10x10, 0.8 mm pitch) are available from SnapEDA for Altium, KiCad, and Eagle.
Match the temperature-grade suffix to your environment: the -E/PT (this part) is required above +85C ambient and for AEC-Q100 automotive builds, while the cheaper DSPIC33EP256GM706-I/PT is fine only to +85C. Do not exceed the 3.6V absolute supply limit - 5V-tolerant claims apply only to specific digital pins per the datasheet. When substituting flash-reduced variants (128GM706, 128GM306), re-verify peripheral counts (op-amps, CAN) because GM306 silicon is a subset of GM706 despite the identical footprint.
合规信息
AEC-Q100 automotive qualification and 3.3V automotive grading confirmed by Microchip product page and datasheets.com listing. RoHS/REACH/lead-free status not stated in provided data - verify on Microchip's official product page.
