DSPIC33FJ128GP804-H/PT - 16-bit DSC 128KB Flash 40MIPS | Microchip
料号： DSPIC33FJ128GP804-H/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.2 | $6.20 |
| 10 | $5.58 | $55.80 |
| 100 | $4.9 | $490.00 |
| 500 | $4.35 | $2,175.00 |
| 1,000 | $3.85 | $3,850.00 |
DSPIC33FJ128GP804-H/PT 概述
A digital signal controller combines the computational architecture of a digital signal processor (DSP) with the peripheral set and ease of use of a microcontroller (MCU). Within the power-management hierarchy of embedded systems, the dsPIC33F family sits between general-purpose MCUs and dedicated DSPs, offering single-cycle MAC (multiply-accumulate) instructions, hardware divide, and DSP engine support while retaining standard MCU peripherals such as UART, SPI, I2C, and PWM modules.
Key features of this part include the 16-bit modified Harvard dsPIC33F core running up to 40 MIPS from a 3.0 V to 3.6 V supply, 128 KB (44 KB x 16) of self-programmable Flash, 16 KB of SRAM, and Peripheral Pin Select (PPS), which allows many digital peripherals to be remapped to any of 21 I/O ports as documented in the Microchip PIM information sheet (70325A).
Architecturally, the DSP engine can fetch two data operands concurrently while multiplying two W registers and accumulating, optionally saturating, the result in the same cycle, per the dsPIC33FJ128GP804 family datasheet (70292G). The advanced analog portfolio includes a high-speed 12-bit ADC and comparators, supporting motor control and power-conversion feedback loops without external front-end ICs.
Typical applications include automotive body and powertrain-adjacent modules, sensorless BLDC/PMSM motor control, digital power supplies, and industrial control panels that benefit from the AEC-Q100 qualification and extended -40C to +150C rating.
Designers should note that the -H temperature grade supports up to +150C ambient, but sustained high-frequency operation near the maximum grade reduces timing margin; consult the electrical specifications in the family datasheet for grade-specific limits.
This page synthesizes distributor pricing, drop-in alternatives, pin-compatibility data from Microchip PIM documentation, and practical design notes not consolidated in the manufacturer datasheet.
直接替换替代料： DSPIC33FJ128GP804-H/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： DSPIC33FJ128GP804-H/PT （相同外形与封装尺寸） ——差异在于 Operating Temperature, Package, Timers, Core, Core Architecture.
快速对比工具——选择替代料号进行并排对比：
DSPIC33FJ128GP804-I/PT
✅ 直接替换✓ 有现货
$4.46 / 个
查看数据手册 →DSPIC33FJ128GP804-E/PT
✅ 直接替换📋 参考替代料（不在目录中）
DSPIC33FJ128GP804T-H/PT
✅ 直接替换📋 参考替代料（不在目录中）
DSPIC33FJ64GP804-I/PT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.72 / 个
查看数据手册 →PIC24HJ128GP504-I/PT
✅ 直接替换✓ 有现货
$5.07 / 个
查看数据手册 →DSPIC33FJ128GP804-H/PT 最大额定值与电气特性
| Core | dsPIC33F 16-bit |
| Max Clock Speed | 40 MHz |
| Performance | 40 MIPS |
| Program Memory | 128 KB Flash |
| SRAM | 16 KB |
| 电源电压 | 3 V to 3.6 V |
| I/O Ports | 21 |
| Package Type | TQFP-44 (10 x 10 mm) |
| 工作温度 | -40C to +150C (H grade) |
| Qualification | AEC-Q100 qualified (automotive) |
| Peripheral Pin Select | Yes (PPS) |
| ROM Type | Flash |
| 安装类型 | Surface Mount |
| Instruction Set | Single-cycle MAC, DSP engine |
| Life Cycle Stage | Active |
DSPIC33FJ128GP804-H/PT tqfp-44 (10 x 10 mm) 引脚配置指南
DSPIC33FJ128GP804-H/PT（tqfp-44 (10 x 10 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： DSPIC33FJ128GP804-H/PT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DSPIC33FJ128GP804-H/PT 适用于 6 应用s: Automotive Body Electronics, Sensorless BLDC/PMSM Motor Control, Digital Power Supplies (SMPS/LLC), Industrial Sensing and Condition Monitoring, Embedded Audio and Signal Processing, HVAC and Appliance Control Boards.
Automotive Body Electronics
The AEC-Q100 qualification and -40C to +150C rating of the DSPIC33FJ128GP804-H/PT make it a strong fit for automotive body modules such as lighting controllers, window lift units, and HVAC actuators. Its 21 I/O ports with Peripheral Pin Select let one firmware image drive different harness variants by remapping LIN/UART and PWM outputs in software, cutting hardware variants. The 128 KB Flash accommodates protocol stacks and diagnostics (UDS-style routines) without external memory. Place it on a 3.3 V rail derived from the automotive 12 V battery via a qualified buck converter; the 40 MIPS core handles relay scheduling and current-sense ADC sampling at multi-kHz rates, leaving headroom for watchdog and communication tasks.
推荐
Sensorless BLDC/PMSM Motor Control
The single-cycle MAC instruction and DSP engine of the dsPIC33FJ128GP804 accelerate field-oriented control and observer-based sensorless algorithms, where Clarke/Park transforms run every PWM cycle. The on-chip high-speed 12-bit ADC samples phase currents synchronized to the PWM center, and output-compare/PWM modules generate complementary six-step or SVPWM drive signals without extra ICs. With 40 MIPS of headroom, a 20 kHz current loop plus a slower speed loop fits comfortably in one chip. The 128 KB Flash holds field-weakening tables and startup routines. Verify the -H grade thermal budget in enclosed drives, since junction temperature near +150C reduces long-term reliability margins.
Digital Power Supplies (SMPS/LLC)
Digital control of LLC, buck, or PFC stages benefits from the dsPIC33FJ128GP804's deterministic 40 MIPS core and high-speed ADC: the compensation loop (Type-III or 3p3z) executes within a single PWM period using the DSP MAC engine. Peripheral Pin Select routes PWM outputs to the gate-driver interface of your choice, and the internal comparators support cycle-by-cycle current limiting. The 3.0 V to 3.6 V supply range matches standard controller rails. Using the -H grade (up to +150C) allows mounting the controller near hot power stages in enclosed adapters, though most designs keep it on the cool secondary side for timing-margin reasons.
推荐
Industrial Sensing and Condition Monitoring
For vibration, pressure, or current monitoring nodes, the dsPIC33FJ128GP804 runs FFT and IIR filtering in-chip using its DSP instructions, transmitting results over UART/SPI/I2C remapped via PPS to suit existing backplanes. The 16 KB SRAM buffers multiple ADC sample windows, and the 12-bit converter resolves most industrial transducer signals directly. Operation over the extended -H temperature range suits panels near motors or furnaces. A typical chain connects the transducer front-end to AN pins, the controller sampling at 10-50 ksps, and an RS-485 transceiver on the remapped UART. The 128 KB Flash stores calibration coefficients and a small protocol stack concurrently.
推荐
Embedded Audio and Signal Processing
The GP (general purpose) variant of the dsPIC33FJ family includes audio-oriented peripherals, and the DSP engine performs sample-rate conversion, filtering, and audio effect processing at 40 MIPS. The 128 KB Flash holds codec drivers plus multiple effect profiles; the 16 KB SRAM buffers delay lines for short reverbs and echo effects. Peripheral Pin Select maps I2S-compatible SPI or UART frames to convenient pins, easing layout between the controller and an external audio codec. For noise-critical designs, keep the analog supply (AVDD) filtered with an RC or small LDO from the 3.3 V rail to reduce digital switching noise coupling into ADC measurements.
推荐
HVAC and Appliance Control Boards
Appliance controllers need motor drive, user-interface scanning, and communication in one low-cost device - exactly the dsPIC33FJ128GP804's balance. The 21 I/O ports handle capacitive or matrix keypads and LED/LCD drive lines while the PWM modules run a compressor or fan BLDC motor; the ADC samples thermistors and bus voltage for safety cutoffs. AEC-Q100 qualification of the -H grade provides extra robustness margin for high-temperature appliance cavities such as ovens or dryers. The 128 KB Flash supports OTA-style bootloaders and multiple language/menu tables. Use the PPS feature to keep one PCB serving several product SKUs with different connector pinouts.
推荐
推荐产品汇总
工程参考数据： DSPIC33FJ128GP804-H/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 | DSPIC33FJ128GP804-I/PT | DSPIC33FJ128GP804-E/PT | PIC24HJ128GP504-I/PT |
|---|---|---|---|---|
| Package | TQFP-44 (10x10 mm) | TQFP-44 - same | TQFP-44 - same | TQFP-44 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 128 KB Flash | 128 KB Flash | 128 KB Flash | 128 KB Flash |
| SRAM | 16 KB | 16 KB | 16 KB | 16 KB |
| Max Clock / Performance | 40 MHz / 40 MIPS | 40 MHz / 40 MIPS | 40 MHz / 40 MIPS | 40 MHz / 40 MIPS |
| Operating Temperature | -40C to +150C | -40C to +85C | -40C to +125C | -40C to +85C |
| Supply Voltage | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V |
关键差异点
- +150C ambient rating with AEC-Q100 qualification （对比 DSPIC33FJ128GP804-I/PT)
- DSP engine with single-cycle MAC （对比 PIC24HJ128GP504-I/PT)
- Peripheral Pin Select flexibility （对比 DSPIC33FJ128GP804-E/PT)
设计说明
Supply the dsPIC33FJ128GP804-H/PT from a clean 3.3 V rail within the 3.0 V to 3.6 V range. Decouple every VDD pin with 0.1 uF ceramic capacitors placed within 2 mm of the pin, and filter AVDD through an RC (e.g., 10 ohm + 1 uF) or ferrite from the digital rail to keep ADC noise low. Add a 10 uF bulk capacitor near the device. On automotive boards, add transient suppression upstream (load-dump rated regulator) since the AEC-Q100 rating of the MCU does not protect the supply pin beyond its absolute maximums.
Estimated: the -H grade permits up to +150C ambient per Microchip USA and Arrow data, but self-heating must be added. At 40 MHz the device draws on the order of tens of milliamps (consult datasheet 70292G ICC tables); with theta_JA on the order of 40-50 C/W for a TQFP-44 on a standard 4-layer board, a 30 mA core current implies roughly 0.1 W and only a few degrees of rise - manageable, but verify with grade-specific ICC figures when operating above +125C, where derating curves may limit maximum frequency.
Peripheral Pin Select (PPS) is powerful but a classic source of bring-up failure: lock PPS register writes with the unlock sequence, and remember some pins are input-only or fixed-function (oscillator, PGC/PGD programming pins, analog inputs). Do not assign PGC/PGD pins to general I/O if in-circuit debugging is planned. Also confirm configuration words (FOSC, watchdog, boot write protection) at project start - incorrect oscillator settings are the most common cause of a 'dead' first board.
合规信息
AEC-Q100 automotive qualification confirmed via Arrow and Microchip USA product listings. RoHS/REACH/lead-free status not stated in the verified web data - confirm on the Microchip product page or distributor compliance sheets.
