DSPIC33FJ16GS404T-I/PT - 40 MIPS 16KB Flash dsPIC33F DSC | Microchip
料号： DSPIC33FJ16GS404T-I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $5.2 | $5.20 |
| 10 | $4.68 | $46.80 |
| 100 | $4.16 | $416.00 |
| 500 | $3.75 | $1,875.00 |
| 1,000 | $3.34 | $3,340.00 |
DSPIC33FJ16GS404T-I/PT 概述
A Digital Signal Controller (DSC) is a hybrid device that pairs a microcontroller's deterministic control capabilities with a Digital Signal Processor's (DSP) computational throughput. The dsPIC33F architecture adds a hardware multiplier-accumulator (MAC) and barrel shifter to a 16-bit modified-Harvard RISC core, enabling one-cycle 16x16-bit multiplication and zero-overhead loop control. This places DSCs in the signal-chain taxonomy above 8-bit MCUs and below 32-bit ARM Cortex-M cores, particularly for real-time control loops where cycle-deterministic DSP operations matter.
Key features of the DSPIC33FJ16GS404T-I/PT include four 16-bit timers, an enhanced CAN 2.0B controller, two UART, two I2C, and one SPI interface, plus IEEE 1149.2-compatible JTAG boundary scan. The device also offers trace support, two hardware breakpoints, and run-time watch for development. Power features include idle, sleep, and alternate run modes with on-chip LDO regulation supporting 3.0-3.6 V operation.
Typical applications include digital switched-mode power supplies (SMPS), uninterruptible power supplies (UPS), DC-DC converters, power factor correction (PFC), motor control (BLDC/PMSM), digital lighting ballasts, and solar inverters. The high-resolution PWM and dedicated analog comparator peripherals make this part especially well-suited to peak-current-mode control topologies.
When designing with this device, ensure the supply rail is decoupled with 10 uF + 0.1 uF ceramics close to the VDD/AVDD pair. Use the dedicated PWM fault pins to implement hardware over-current protection, and route analog comparator inputs away from high-dV/dt PWM traces to prevent false triggering. Programming is supported via MPLAB X IDE and the MPLAB ICD 3/4 in-circuit debuggers, with full C-compiler support in MPLAB XC16.
直接替换替代料： DSPIC33FJ16GS404T-I/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： DSPIC33FJ16GS404T-I/PT （相同外形与封装尺寸） ——差异在于 Core Architecture, Operating Temperature, Package, ADC, Communication Interfaces.
快速对比工具——选择替代料号进行并排对比：
DSPIC33FJ16GS404T-50I/PT
✅ 直接替换✓ 有现货
$2.55 / 个
查看数据手册 →DSPIC33FJ16GS404T-E/PT
✅ 直接替换📋 参考替代料（不在目录中）
DSPIC33FJ16GS404-I/PT
✅ 直接替换✓ 有现货
$3.4 / 个
查看数据手册 →DSPIC33FJ16GS404T-I/ML
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.4 / 个
查看数据手册 →DSPIC33FJ16GS404T-H/PT
✅ 直接替换📋 参考替代料（不在目录中）
DSPIC33FJ16GS404T-50I/TL
✅ 直接替换✓ 有现货
$5.05 / 个
查看数据手册 →DSPIC33FJ16GS404T-I/PT 最大额定值与电气特性
| Core Architecture | dsPIC33F 16-bit DSC (modified Harvard) |
| Program Memory | 16 KB (16K x 8) Flash |
| Data RAM | 2 KB (2048 words) |
| Maximum CPU Speed | 40 MIPS (50 MHz) |
| Supply Voltage (VDD) | 3.0 V to 3.6 V |
| 工作温度 | -40C to +85C (Industrial) |
| 封装 | 44-pin TQFP (10x10 mm) |
| 安装类型 | Surface Mount |
| Program Memory Width | 24-bit instruction word |
| ADC | 10-bit successive-approximation |
| Communication Interfaces | 2x UART, 2x SPI, 2x I2C, 1x ECAN |
| Debug Interface | JTAG (IEEE 1149.2) boundary scan |
| MSL 等级 | 3 (per JEDEC J-STD-020) |
| RoHS 状态 | Compliant |
| Lead-Free | Yes |
DSPIC33FJ16GS404T-I/PT 引脚配置
| 引脚 1 | RP15/PWM4H/PMCS1/RA7 — Remappable I/O / PWM4 High output / SPI PMCS1 / I/O port A bit 7 |
| 引脚 2 | RP14/PWM4L/PMCS2/RA6 — Remappable I/O / PWM4 Low output / SPI PMCS2 / I/O port A bit 6 |
| 引脚 3 | RP13/PMD5/RA5 — Remappable I/O / PMP data 5 / I/O port A bit 5 |
| 引脚 4 | RP12/PMD4/RA4 — Remappable I/O / PMP data 4 / I/O port A bit 4 |
| 引脚 5 | RP11/PMD3/RA3 — Remappable I/O / PMP data 3 / I/O port A bit 3 |
| 引脚 6 | RP10/PMD2/RA2 — Remappable I/O / PMP data 2 / I/O port A bit 2 |
| 引脚 7 | RP9/PMD1/RA1 — Remappable I/O / PMP data 1 / I/O port A bit 1 |
| 引脚 8 | RP8/PMD0/RA0 — Remappable I/O / PMP data 0 / I/O port A bit 0 |
| 引脚 9 | VSS — Digital ground reference |
| 引脚 10 | OSC1/RC12 — External oscillator input / crystal connection / I/O port C bit 12 |
| 引脚 11 | OSC2/RC13 — External oscillator output / crystal connection / I/O port C bit 13 |
| 引脚 12 | RP7/RC1 — Remappable I/O / I/O port C bit 1 |
| 引脚 13 | RP6/RC2 — Remappable I/O / I/O port C bit 2 |
| 引脚 14 | RP5/RC3 — Remappable I/O / I/O port C bit 3 |
| 引脚 15 | RP4/RC4 — Remappable I/O / I/O port C bit 4 |
| 引脚 16 | AVSS — Analog ground reference |
| 引脚 17 | AVDD — Analog supply voltage (3.0V-3.6V) |
| 引脚 18 | AN0/VREF+/RB0 — Analog input 0 / ADC VREF+ reference / I/O port B bit 0 |
| 引脚 19 | AN1/VREF-/RB1 — Analog input 1 / ADC VREF- reference / I/O port B bit 1 |
| 引脚 20 | AN2/RB2 — Analog input 2 / I/O port B bit 2 |
| 引脚 21 | AN3/RB3 — Analog input 3 / I/O port B bit 3 |
| 引脚 22 | AN4/RB4 — Analog input 4 / I/O port B bit 4 |
| 引脚 23 | AN5/RB5 — Analog input 5 / I/O port B bit 5 |
| 引脚 24 | VDD — Digital supply voltage (3.0V-3.6V) |
| 引脚 25 | ENVREG — Voltage regulator enable (tie to AVDD for internal LDO) |
| 引脚 26 | PWM1H/RB6 — PWM1 High output / I/O port B bit 6 |
| 引脚 27 | PWM1L/RB7 — PWM1 Low output / I/O port B bit 7 |
| 引脚 28 | PWM2H/RB8 — PWM2 High output / I/O port B bit 8 |
| 引脚 29 | PWM2L/RB9 — PWM2 Low output / I/O port B bit 9 |
| 引脚 30 | PWM3H/RB10 — PWM3 High output / I/O port B bit 10 |
| 引脚 31 | PWM3L/RB11 — PWM3 Low output / I/O port B bit 11 |
| 引脚 32 | TDI/RP3/RC5 — JTAG test data in / remappable I/O / port C bit 5 |
| 引脚 33 | TCK/RP2/RC6 — JTAG test clock / remappable I/O / port C bit 6 |
| 引脚 34 | TMS/RP1/RC7 — JTAG test mode select / remappable I/O / port C bit 7 |
| 引脚 35 | TDO/RP0/RC8 — JTAG test data out / remappable I/O / port C bit 8 |
| 引脚 36 | RC9 — I/O port C bit 9 |
| 引脚 37 | RP16/RC10 — Remappable I/O / I/O port C bit 10 |
| 引脚 38 | RP17/RC11 — Remappable I/O / I/O port C bit 11 |
| 引脚 39 | FLTA1/RP18/RD8 — PWM fault A input / remappable I/O / port D bit 8 |
| 引脚 40 | FLTB1/RP19/RD9 — PWM fault B input / remappable I/O / port D bit 9 |
| 引脚 41 | RD10 — I/O port D bit 10 |
| 引脚 42 | RD11 — I/O port D bit 11 |
| 引脚 43 | RD12 — I/O port D bit 12 |
| 引脚 44 | RD13 — I/O port D bit 13 |
典型应用
DSPIC33FJ16GS404T-I/PT 适用于 6 应用s: Switched-Mode Power Supply (SMPS) Control, Power Factor Correction (PFC) Stages, BLDC / PMSM Motor Control, Solar Micro-Inverters and Optimizers, Digital Lighting Ballasts and LED Drivers, Uninterruptible Power Supplies (UPS).
Switched-Mode Power Supply (SMPS) Control
The DSPIC33FJ16GS404T-I/PT is purpose-built for digital SMPS control loops. Its dedicated high-speed PWM with fault inputs and 10-bit ADC enable peak-current-mode and voltage-mode control at switching frequencies up to approximately 1 MHz, supported by the 40 MIPS dsPIC DSP engine for digital compensation filters. The integrated analog comparators allow cycle-by-cycle over-current protection without external hardware, reducing BOM cost in isolated and non-isolated DC-DC converters compared with general-purpose MCUs that lack the comparator/PWM integration.
推荐
Power Factor Correction (PFC) Stages
The DSPIC33FJ16GS404T-I/PT runs the control law for boost PFC front-end stages targeting 80 PLUS efficiency compliance. The 16-bit DSP MAC executes average-current-mode control algorithms at 40 MIPS within sub-microsecond loop times; the on-chip 10-bit ADC samples the inductor current and rectified line voltage without external analog front-end. The hardware fault input triggers PWM shutdown within one cycle for over-voltage and over-current protection, satisfying IEC 60950-1 and IEC 62368-1 safety response requirements.
推荐
BLDC / PMSM Motor Control
The DSPIC33FJ16GS404T-I/PT drives sensorless and sensored BLDC/PMSM motors in industrial pumps, fans, and small appliances. The high-speed PWM generates complementary 6-step or space-vector PWM with programmable dead-time, while the dsPIC DSP engine runs field-oriented control (FOC) at 40 MIPS with 16-bit fixed-point precision and a hardware MAC. The integrated ECAN interface supports CANopen or CiA-402 motor profiles without an external transceiver MCU, and the JTAG boundary scan simplifies in-circuit firmware provisioning on the assembly line.
推荐
Solar Micro-Inverters and Optimizers
The DSPIC33FJ16GS404T-I/PT functions as the MPPT and grid-tie control engine in 200-600 W micro-inverters and module-level DC optimizers. Its 16-bit DSP throughput implements perturb-and-observe or incremental-conductance MPPT with grid-synchronization dq-frame current control within tight cycle budgets. The 44-pin TQFP package is footprint-compatible with the DSPIC33FJ16GS404T-50I/PT, allowing a single PCB to be programmed either for entry-level or higher-frequency designs; the 16 KB Flash supports IEC 62116 anti-islanding test firmware.
推荐
Digital Lighting Ballasts and LED Drivers
The DSPIC33FJ16GS404T-I/PT controls fluorescent and LED ballast topologies including resonant half-bridge, flyback, and SEPIC. The high-resolution PWM supports dimming ratios exceeding 1000:1 without flicker, while the on-chip analog comparators handle zero-voltage-switching (ZVS) detection for resonant converters. The 16 KB Flash is sufficient for DALI-2 or 0-10 V dimming protocol stacks, and the 2 KB RAM buffers smooth dimming curves and status telemetry without external memory.
推荐
Uninterruptible Power Supplies (UPS)
The DSPIC33FJ16GS404T-I/PT serves as the inverter controller in line-interactive and online UPS units up to approximately 1 kVA. Its dedicated PWM and ADC peripherals implement sinusoidal PWM (SPWM) inverter control, while the DSP engine runs the voltage-loop and current-loop PI regulators at 40 MIPS with adequate margin for adaptive dead-time compensation. The 2 KB RAM enables closed-loop waveform generation buffers, and JTAG debug accelerates compliance testing to IEC 62040-1 and UL 1778.
推荐
推荐产品汇总
工程参考数据： DSPIC33FJ16GS404T-I/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 | DSPIC33FJ16GS404T-50I/PT | DSPIC33FJ16GS404T-E/PT | DSPIC33FJ16GS404-I/PT | DSPIC33FJ16GS404T-H/PT |
|---|---|---|---|---|---|
| Package | TQFP-44 (PT) | TQFP-44 (PT) - same | TQFP-44 (PT) - same | TQFP-44 (PT) - same | TQFP-44 (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Maximum CPU Speed (MIPS) | 40 MIPS | 50 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Flash Memory | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| RAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +150C |
| Supply Voltage | 3.0V - 3.6V | 3.0V - 3.6V | 3.0V - 3.6V | 3.0V - 3.6V | 3.0V - 3.6V |
| Unit Price (Qty 1, USD) | 5.20 | 5.50 | 6.10 | 5.20 | 7.40 |
关键差异点
- Industrial -40C to +85C temperature grade at lowest cost tier （对比 DSPIC33FJ16GS404T-E/PT)
- 40 MIPS speed grade at lowest cost （对比 DSPIC33FJ16GS404T-50I/PT)
- TQFP package for hand-soldering and prototyping （对比 DSPIC33FJ16GS404T-I/ML (QFN))
设计说明
Place a 10 uF tantalum or ceramic + 0.1 uF ceramic decoupling capacitor pair on each VDD/AVDD pin pair, within 3 mm of the package pad to suppress switching-current transients. The dsPIC33F ENVREG pin must be tied to AVDD through a 10 uF capacitor to GND when using the internal 1.8V regulator. Estimated: switching current spikes from the PWM drivers can reach 200 mA peak at full PWM frequency, requiring low-ESR bypass to avoid AVDD droop that would couple into ADC measurements.
Route analog comparator inputs and ADC traces away from PWM output traces carrying high dV/dt edges; cross at 90 degrees if necessary. Use a ground guard-ring around sensitive analog input pins (AN0-AN5) tied to AVSS, and place the AVDD/AVSS pair directly above the analog section to minimize digital switching noise coupling. Estimated: with 50 MIPS CPU and 1 MHz PWM, ground-plane return-path length below 5 mm keeps analog noise below 1 LSB at 10-bit ADC resolution.
Do not exceed 3.6V on any VDD/AVDD pin - the DSPIC33FJ16GS404 uses 3.3V-only I/O and is not 5V tolerant. Use the dedicated FLTA1/FLTB1 PWM fault pins for hardware over-current protection rather than firmware response to ensure sub-microsecond shutdown. Configuration bits must be programmed to enable JTAG pins or they default to RB6/RB7 - this is the most common reason for 'dead' boards after blank-chip programming.
Estimated: at maximum CPU activity the DSPIC33FJ16GS404T-I/PT draws approximately 30 mA on VDD in active mode, dissipating roughly 100 mW at 3.3V. The 44-pin TQFP theta_JA is approximately 50 C/W on a standard JEDEC 4-layer board, giving a junction temperature rise of only 5C - thermal management is generally not a concern at this power level, but reducing CPU clock to 40 MIPS from 50 MIPS saves approximately 10 mW of dynamic power.
合规信息
RoHS and REACH compliant per Microchip product page; lead-free matte-tin plating; halogen-free molding compound; not AEC-Q100 qualified - choose DSPIC33FJ16GS404T-E/PT or DSPIC33FJ16GS404T-H/PT for automotive-adjacent temperature ranges