Microchip Technology

DSPIC33FJ32GS608-E/PT - 16-bit DSC 40MIPS 32KB Flash | Microchip

部品番号: DSPIC33FJ32GS608-E/PT ✓ 生産中
在庫あり 1〜3営業日以内に発送
3.0 V to 3.6 V Vdss 80-pin TQFP (12 x 12 mm), 0.5 mm pitch Package 40 MIPS Speed 32 KB Memory
開始価格 $3.98 USD / 個
MOQ: 1 |
価格更新日: 2026-09-26
ボリューム価格
数量 単価 小計
1 $6.2 $6.20
10 $5.65 $56.50
100 $4.95 $495.00
500 $4.42 $2,210.00
1,000 $3.98 $3,980.00
ℹ️ すべての価格はUSDです

DSPIC33FJ32GS608-E/PT 概要

The Microchip Technology DSPIC33FJ32GS608-E/PT is a 16-bit digital signal controller (DSC) delivering 40 MIPS performance from 32 KB of on-chip Flash program memory, housed in an 80-pin TQFP (12 x 12 mm, 0.5 mm pitch) package rated for the extended -40C to +125C temperature range.

A digital signal controller combines the computational throughput of a digital signal processor (DSP) with the peripheral set and ease of use of a microcontroller (MCU) in a single chip. Within the power-management hierarchy, the dsPIC33FJ GS family sits between general-purpose MCUs and dedicated digital power ICs: it executes control loops (PI, predictive) for switch-mode power conversion while simultaneously handling housekeeping, communication and protection functions. The GS (Digital Power) variant of the dsPIC33F line adds peripherals purpose-built for SMPS control.

Key features include up to four high-speed analog comparators with direct connection to the PWM module for sub-cycle current limiting, a high-resolution high-speed PWM capable of independent half-bridge, full-bridge and push-pull topologies, a fast 10-bit ADC, and 35 I/O ports. Supply voltage spans 3.0 V to 3.6 V, and the core executes the modified Harvard 16-bit DSP instruction set with DSP multiply-accumulate support.

Architecturally, the device uses CMOS technology with a two-pipeline 16-bit core, vectored interrupts, and hardware loop support, enabling deterministic single-cycle MAC operations critical for digital power loops at tens to hundreds of kilohertz switching frequencies. The comparator-to-PWM direct path achieves current-limit trip faster than any software interrupt path, a decisive advantage in overcurrent protection.

Typical applications include AC-DC converters, DC-DC converters, power factor correction (PFC) stages, uninterruptible power supplies (UPS), inverters and battery chargers. The -E extended temperature option and 80-pin package with 35 I/O also suit industrial control and motor drive panels.

Design consideration: the 3.0 V to 3.6 V supply requires a clean 3.3 V rail; pair the device with a small LDO and keep the analog supply (AVDD) filtered separately from the digital rail for ADC accuracy.

This page synthesizes distributor pricing, drop-in family alternatives, design notes and application guidance not found in a single manufacturer source.

ドロップイン代替品: DSPIC33FJ32GS608-E/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: DSPIC33FJ32GS608-E/PT (同一形状・フットプリント) — 相違点: ADC, Operating Temperature, Core Architecture, High-Speed Comparators, PWM.

Microchip Technology
ADC: High-speed SAR ADC
Operating Temperature: -40C to +85C (industrial)
PWM: SMPS high-speed PWM module
Microchip Technology
ADC: Yes (SMPS-optimized)
Operating Temperature: -40C to +85C (I grade)
Core Architecture: 16-bit dsPIC33F DSC

クイック比較ツール — 並列比較する代替部品を選択:

DSPIC33FJ64GS608-E/PT

✅ ドロップイン ⚠️ 仕様未検証
📦 80-pin TQFP (12 x 12 mm)
Flash doubled 32 KB to 64 KB; identical pinout, peripherals, package and temperature range - firmware-compatible upgrade

📋 参考代替品(カタログ未掲載)

DSPIC33FJ32GS608-50E/PT

✅ ドロップイン
📦 80-pin TQFP (12 x 12 mm)
Same die family and package in 50MIPS-class speed grade vs 40 MIPS standard; same extended temperature range

📋 参考代替品(カタログ未掲載)

DSPIC33FJ32GS608-50I/PT

✅ ドロップイン
Microchip Technology
📦 80-pin TQFP (12 x 12 mm)
dsPIC33F (16-bit DSC) · 16-bit · 50 MIPS / 50 MHz · 32 KB (32K x 8) · 4 KB (4K x 8) · 3.0 V to 3.6 V (3.3 V nominal) · 74 · 5 (16-bit)

✓ 在庫あり

$5.35 / 個

データシートを見る →

DSPIC33FJ64GS608-50E/PT

✅ ドロップイン ⚠️ 仕様未検証
📦 80-pin TQFP (12 x 12 mm)
64 KB Flash plus 50MIPS-class speed grade; same pin-to-pin 80-pin TQFP footprint

📋 参考代替品(カタログ未掲載)

DSPIC33FJ32GS608-E/PT 最大定格&電気的特性

Core Architecture 16-bit dsPIC33F DSC (modified Harvard)
Max CPU Speed 40 MIPS
Program Memory (Flash) 32 KB
電源電圧 3.0 V to 3.6 V
I/O Ports 35
パッケージ 80-pin TQFP (12 x 12 mm), 0.5 mm pitch
動作温度 -40C to +125C (extended, E suffix)
実装タイプ Surface Mount
High-Speed Comparators Up to 4, direct PWM connection
PWM High-Speed PWM for SMPS (complementary/edge-aligned modes)
ADC 10-bit, high-speed
ROM Type Flash (self-programmable)
Technology CMOS
Programming/Debug ICSP via any PGECx/PGEDx pair (used as a pair)
Target Applications AC-DC, DC-DC, PFC, UPS, digital power conversion
Lead Finish Lead free (per package description)

DSPIC33FJ32GS608-E/PT ピン構成

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
ピン 1 MCLR — Master clear reset / programming voltage input
ピン 2 AN0/VREF+/RB0 — Analog input 0 / positive ADC reference / PORTB I/O
ピン 3 AN1/VREF-/RB1 — Analog input 1 / negative ADC reference / PORTB I/O
ピン 4 AN2/RB2 — Analog input 2 / PORTB I/O
ピン 5 AN3/RB3 — Analog input 3 / PORTB I/O
ピン 6 AN4/RB4 — Analog input 4 / PORTB I/O
ピン 7 AN5/RB5 — Analog input 5 / PORTB I/O
ピン 8 AN6/RB6 — Analog input 6 / PORTB I/O
ピン 9 AN7/RB7 — Analog input 7 / PORTB I/O
ピン 10 AN8/RB8 — Analog input 8 / PORTB I/O
ピン 11 AN9/RB9 — Analog input 9 / PORTB I/O
ピン 12 AN10/RB10 — Analog input 10 / PORTB I/O
ピン 13 AN11/RB11 — Analog input 11 / PORTB I/O
ピン 14 AN12/PGD3/RB12 — Analog input 12 / ICSP data pair 3 / PORTB I/O
ピン 15 AN13/PGC3/RB13 — Analog input 13 / ICSP clock pair 3 / PORTB I/O
ピン 16 AN14/RB14 — Analog input 14 / PORTB I/O
ピン 17 AN15/RB15 — Analog input 15 / PORTB I/O
ピン 18 AVDD — Analog supply (3.0 V to 3.6 V)
ピン 19 AVSS — Analog ground
ピン 20 PWM1L/RE0 — High-speed PWM 1 low output / PORTE I/O
ピン 21 PWM1H/RE1 — High-speed PWM 1 high output / PORTE I/O
ピン 22 PWM2L/RE2 — High-speed PWM 2 low output / PORTE I/O
ピン 23 PWM2H/RE3 — High-speed PWM 2 high output / PORTE I/O
ピン 24 PWM3L/RE4 — High-speed PWM 3 low output / PORTE I/O
ピン 25 PWM3H/RE5 — High-speed PWM 3 high output / PORTE I/O
ピン 26 PWM4L/RE6 — High-speed PWM 4 low output / PORTE I/O
ピン 27 PWM4H/RE7 — High-speed PWM 4 high output / PORTE I/O
ピン 28 VDD — Digital supply (3.0 V to 3.6 V)
ピン 29 VSS — Digital ground
ピン 30 TMS/RF2 — JTAG test mode select / PORTF I/O
ピン 31 TDI/RF3 — JTAG test data in / PORTF I/O
ピン 32 TDO/RF4 — JTAG test data out / PORTF I/O
ピン 33 TCK/RF5 — JTAG test clock / PORTF I/O
ピン 34 RF6 — PORTF general purpose I/O
ピン 35 RF7 — PORTF general purpose I/O
ピン 36 RF8 — PORTF general purpose I/O
ピン 37 RF12 — PORTF general purpose I/O
ピン 38 RF13 — PORTF general purpose I/O
ピン 39 VSS — Digital ground
ピン 40 VDD — Digital supply (3.0 V to 3.6 V)
ピン 41 RG0 — PORTG general purpose I/O
ピン 42 RG1 — PORTG general purpose I/O
ピン 43 RG2 — PORTG general purpose I/O
ピン 44 RG3 — PORTG general purpose I/O
ピン 45 RG6 — PORTG general purpose I/O
ピン 46 RG7 — PORTG general purpose I/O
ピン 47 RG8 — PORTG general purpose I/O
ピン 48 RG9 — PORTG general purpose I/O
ピン 49 VSS — Digital ground
ピン 50 VDD — Digital supply (3.0 V to 3.6 V)
ピン 51 FLTA/RD0 — PWM fault A input / PORTD I/O
ピン 52 FLTB/RD1 — PWM fault B input / PORTD I/O
ピン 53 RD2 — PORTD general purpose I/O
ピン 54 RD3 — PORTD general purpose I/O
ピン 55 RD4 — PORTD general purpose I/O
ピン 56 RD5 — PORTD general purpose I/O
ピン 57 RD6 — PORTD general purpose I/O
ピン 58 RD7 — PORTD general purpose I/O
ピン 59 RD8 — PORTD general purpose I/O
ピン 60 RD9 — PORTD general purpose I/O
ピン 61 RD10 — PORTD general purpose I/O
ピン 62 RD11 — PORTD general purpose I/O
ピン 63 RD12 — PORTD general purpose I/O
ピン 64 RD13 — PORTD general purpose I/O
ピン 65 VSS — Digital ground
ピン 66 VDD — Digital supply (3.0 V to 3.6 V)
ピン 67 PGED1/RC1 — ICSP data pair 1 / PORTC I/O
ピン 68 PGEC1/RC2 — ICSP clock pair 1 / PORTC I/O
ピン 69 RC3 — PORTC general purpose I/O
ピン 70 RC4 — PORTC general purpose I/O
ピン 71 PGED2/RC12 — ICSP data pair 2 / PORTC I/O
ピン 72 PGEC2/RC13 — ICSP clock pair 2 / PORTC I/O
ピン 73 RC14 — PORTC general purpose I/O
ピン 74 RC15 — PORTC general purpose I/O / secondary oscillator
ピン 75 OSCI/RA2 — Oscillator crystal input / PORTA I/O
ピン 76 OSCO/RA3 — Oscillator crystal output / PORTA I/O
ピン 77 RA4 — PORTA general purpose I/O
ピン 78 RA7 — PORTA general purpose I/O
ピン 79 VDD — Digital supply (3.0 V to 3.6 V)
ピン 80 VSS — Digital ground

主な用途

DSPIC33FJ32GS608-E/PT の用途: 6 件s: AC-DC Power Supplies, Power Factor Correction (PFC), DC-DC Converters, Uninterruptible Power Supplies (UPS), Inverters and Solar Micro-Inverters, Digital Lighting and Battery Chargers.

⚡

AC-DC Power Supplies

The DSPIC33FJ32GS608-E/PT is explicitly listed by Microchip as a controller for AC to DC converters. Its high-speed PWM generates complementary gate-drive signals with programmable dead time, while up to four high-speed comparators connect directly to the PWM module, so primary-side overcurrent events are tripped in hardware without waiting for a software interrupt - essential for transformer protection at switching frequencies of 100 kHz and above. The 10-bit ADC samples output voltage and input current synchronously with the PWM period for clean control-loop feedback, and the 40 MIPS core runs voltage-mode, current-mode or predictive control laws with DSP MAC instructions. The 35 I/O lines cover housekeeping signals such as fan control, status LEDs and communication, allowing one chip to implement a complete offline power supply supervisor.

⚡

Power Factor Correction (PFC)

Microchip provides an Interleaved PFC reference design for this exact family, producing up to 350 W from a universal AC input using the dsPIC33F GS controllers. The DSPIC33FJ32GS608-E/PT implements average-current-mode PFC control: the ADC samples the input rectified sine wave and bus voltage each switching cycle, and the 40 MIPS core computes duty commands for two interleaved boost phases using single-cycle MAC operations. The high-speed PWM module natively supports phase-shifted and complementary outputs needed for interleaving, improving input current ripple cancellation. Hardware comparator inputs monitor boost inductor current for cycle-by-cycle overcurrent limiting. Running PFC plus main converter control on one 80-pin chip with 35 I/O eliminates a dedicated PFC controller IC and simplifies protection coordination across stages.

⚡

DC-DC Converters

For DC to DC conversion - buck, boost, half-bridge, full-bridge and push-pull - the DSPIC33FJ32GS608-E/PT supplies all required control peripherals on-chip. The high-speed PWM supports independent and complementary output pairs with dead-time insertion and edge or center alignment, suiting synchronous rectification designs. The 10-bit ADC with flexible trigger placement samples inductor current and output voltage with sub-microsecond latency, and the 40 MIPS pipeline sustains proportional-integral loops at update rates matched to 200 kHz-class power stages. Up to four comparators provide hardware overcurrent trip via the direct PWM connection, protecting against short circuits faster than software fault handling. The 3.0 V to 3.6 V rail and 35 I/O integrate telemetry (I2C/UART-style functions mapped on RP pins) for digital communication with a host PMBus-style supervisor.

⚡

Uninterruptible Power Supplies (UPS)

The Microchip product page names uninterruptible power supplies as a primary application for the GS family, and the DSPIC33FJ32GS608-E/PT fits the role through its combination of multi-channel PWM, fast ADC and comparator-based protection. A line-interactive or double-conversion UPS needs synchronized inverter control, AC-line zero-cross detection, battery charging management and transfer-switch logic; the 80-pin, 35 I/O device handles all of these concurrently at 40 MIPS with DSP arithmetic for sinusoidal inverter modulation. High-resolution PWM timing keeps output THD low, while the fast comparators implement instantaneous hardware limiting during load steps or output shorts. The extended -40C to +125C rating of the -E suffix suits UPS installations in unventilated industrial cabinets where ambient temperatures push beyond commercial component limits.

⚡

Inverters and Solar Micro-Inverters

DC to AC inversion for renewable energy and motor-drive front ends benefits from the DSPIC33FJ32GS608-E/PT architecture. Generating a sinusoidal output requires high-frequency SPWM or space-vector modulation with real-time feedback; the 40 MIPS core with DSP MAC instructions executes these algorithms while the high-speed PWM produces the complementary gate waveforms with precise dead time. The 10-bit ADC samples grid voltage, current and DC-link measurements synchronized to the PWM carrier, and the comparator-to-PWM direct path provides hardware-level DC-link overcurrent protection. Four comparator channels allow independent protection zones on multiple half-bridges. With 35 I/O on the 80-pin TQFP, relays, auxiliary converters and supervisory signaling are driven from the same controller, reducing BOM count relative to a discrete controller plus MCU pair.

💡

Digital Lighting and Battery Chargers

Smart battery chargers and digitally controlled lighting ballasts use the DSPIC33FJ32GS608-E/PT where charge profiles require precise current and voltage regulation with protection. The high-speed PWM implements CC/CV charging with mode transitions managed in firmware, the 10-bit ADC tracks cell voltage and pack temperature via the 35 I/O-mapped analog channels, and comparator hardware enforces fast current limiting if a fault occurs mid-cycle. Temperature supervision uses the -40C to +125C rated device itself as an environmental margin indicator in the charger enclosure. For lighting, the same PWM architecture drives constant-current LED stages with dimming granularity limited only by PWM resolution. The 3.3 V class supply and CMOS process keep controller power low, an advantage in always-on standby modes where efficiency regulations apply.

おすすめ製品の概要

What is the DSPIC33FJ32GS608-E/PT?
The DSPIC33FJ32GS608-E/PT is a Microchip Technology 16-bit digital signal controller with 32 KB Flash, 40 MIPS performance and an 80-pin TQFP (12 x 12 mm) package. It belongs to the GS digital-power family with a high-speed PWM, fast 10-bit ADC and up to four comparators with direct PWM connection, and operates from a 3.0 V to 3.6 V supply over -40C to +125C.
What is the price of DSPIC33FJ32GS608-E/PT?
Pricing for the DSPIC33FJ32GS608-E/PT is in the mid-single-digit USD range at quantity 1 on major distributors such as DigiKey, Mouser and Octopart, with meaningful discounts at 100+ pieces. Exact prices fluctuate with stock; the tier table on this page shows XAIPART pricing as of 2026-09-27. For volume quotes above 1000 units, contact XAIPART for a current quotation.
Where to buy DSPIC33FJ32GS608-E/PT online?
You can buy the DSPIC33FJ32GS608-E/PT from XAIPART directly on this page, or compare stock at DigiKey, Mouser, Octopart and MicrochipDirect. According to Octopart, pricing is aggregated from 9 distributors for this part. Availability is generally good since the dsPIC33FJ32GS608 has an active lifecycle status per manufacturer data; order early for volume requirements because digital-power DSCs see allocation cycles.
What is the difference between DSPIC33FJ32GS608-E/PT and DSPIC33FJ64GS608-E/PT?
The only significant difference is program memory: the 32GS608 has 32 KB of Flash while the 64GS608 doubles it to 64 KB. Both share the same 80-pin TQFP package, pinout, 40 MIPS core, high-speed PWM, ADC and comparator set, so the 64GS608 is a pin-compatible upgrade that requires no PCB change - useful when control code grows beyond 32 KB during development.
DSPIC33FJ32GS608-E/PT vs DSPIC33FJ32GS608-50E/PT - which should I choose?
The '-50' suffix in DSPIC33FJ32GS608-50E/PT denotes the faster speed-grade variant (up to 50 MIPS-class operation per distributor listings), while the standard E/PT runs at 40 MIPS. If your digital power control loop needs more computation headroom - for example multi-loop PFC plus DC-DC on one chip - choose the 50-series. For standard SMPS loops the 40 MIPS E/PT is sufficient and typically costs less.
When should I choose the DSPIC33FJ32GS608 over a general-purpose MCU like PIC18F25K20?
Choose the dsPIC33FJ32GS608 when your application is digital power conversion: the GS family's high-speed PWM with direct comparator current-limit path, fast ADC and DSP MAC instructions are purpose-built for SMPS, PFC and UPS control. The PIC18F25K20 (8-bit, 64 MHz-class, 28-pin) suits lower-cost general control but cannot execute multi-loop power conversion with hardware-fault PWM protection. Choose the PIC18 only when the power stage is externally controlled or simple.
Is the DSPIC33FJ32GS608-E/PT suitable for AC-DC converter design?
Yes. According to the Microchip product page, the dsPIC33FJ32GS608 explicitly supports AC to DC converters, DC to DC converters, power factor correction and uninterruptible power supplies. The 80-pin part provides 35 I/O lines for gating, sensing and supervisory functions, and its comparators trip the PWM in hardware for overcurrent protection at switching speeds beyond software capability.
What is the best drop-in replacement for DSPIC33FJ32GS608-E/PT?
The best drop-in replacement is DSPIC33FJ64GS608-E/PT: same 80-pin TQFP footprint, same pinout and peripherals, with Flash doubled from 32 KB to 64 KB. Within the same temperature grade, DSPIC33FJ32GS608-50E/PT and DSPIC33FJ32GS608-50I/PT are also pin-compatible. No true cross-brand pin-compatible equivalent is documented in cross-reference sources, so substitutions should stay within the Microchip GS608 80-pin family.
Can DSPIC33FJ64GS608-E/PT replace DSPIC33FJ32GS608-E/PT on the same PCB?
Yes, it can. Both parts use the identical 80-pin TQFP (12 x 12 mm) package with pin-to-pin compatible pinouts and the same peripheral map. The only functional difference is program memory size (64 KB vs 32 KB) and correspondingly larger SRAM, so firmware written for the 32 KB part runs unmodified on the 64 KB part. Re-flow the same footprint with no board redesign required.
Where to download the DSPIC33FJ32GS608-E/PT datasheet PDF?
Download the datasheet PDF from the official Microchip product page at microchip.com/en-us/product/dsPIC33FJ32GS608, which links the current High-Performance 16-bit Digital Signal Controllers family document covering the GS608. Mirror copies exist on datasheet aggregators such as datasheets.com and datasheet4u.com, but the Microchip original is the authoritative, most current revision. The same page links reference designs, including the Interleaved PFC reference design.
Where can I find the DSPIC33FJ32GS608 pinout for the 80-pin TQFP?
The complete 80-pin TQFP pinout is in the pin diagrams section of the manufacturer datasheet, downloadable from the Microchip dsPIC33FJ32GS608 product page. Key pins include MCLR on pin 1, multiple PGECx/PGEDx pairs for ICSP programming, analog inputs on PORTB, and PWM outputs on PORTE. The pin diagram on this page provides a visual reference; always verify final assignments against the current datasheet revision before layout sign-off.
Is DSPIC33FJ32GS608-E/PT RoHS compliant and lead free?
Yes. The package description for the DSPIC33FJ32GS608-E/PT specifies a lead-free plastic TQFP, and the part is offered as RoHS-compliant on distributor listings (DigiKey, Mouser). The /PT suffix denotes the TQFP package in tape-and-reel-free tray packaging; confirm the specific compliance certificate via Microchip's product page or your distributor's compliance documentation for full REACH and conflict-minerals declarations.
What are the key specifications of DSPIC33FJ32GS608-E/PT engineers should know?
Key specifications: 16-bit dsPIC33F DSC core at 40 MIPS, 32 KB Flash program memory, 3.0 V to 3.6 V single supply, 80-pin TQFP (12 x 12 mm, 0.5 mm pitch), 35 I/O, -40C to +125C extended temperature range, high-speed PWM with up to 4 comparators having direct PWM connection, fast 10-bit ADC, and ICSP programming through PGECx/PGEDx pairs. These parameters define it as a dedicated digital-power controller.
How do I program the DSPIC33FJ32GS608 with ICSP?
Program the DSPIC33FJ32GS608 via In-Circuit Serial Programming (ICSP) using any PGECx/PGEDx pin pair. According to the family documentation, the device has more than one PGECx/PGEDx pair and you may use any pair, but clock and data must come from the same pair - for example PGEC2 with PGED2. Connect ICSPCLK and ICSPDAT plus MCLR, VDD (3.0-3.6 V) and VSS to a PICkit or ICD-class tool.
Is the DSPIC33FJ32GS608-E/PT in stock, and what is the lead time?
Stock levels change frequently for digital-power DSCs. As of 2026-09-27, DigiKey lists the part as buyable with same-day shipping for small quantities, and Octopart aggregates availability from 9 distributors. Broker sources report large date-code-fresh quantities (e.g., 94,000 pcs on Expertonic). For production volumes, confirm lead time with XAIPART at order time; active lifecycle status from the manufacturer indicates no end-of-life risk currently.
What is the best cross-brand equivalent for the DSPIC33FJ32GS608-E/PT?
No verified cross-brand pin-to-pin equivalent exists for this part in published cross-reference data; the high-speed PWM-plus-comparator architecture is Microchip-specific to the GS family. The closest architectural competitors are TI C2000 DSCs (TMS320F280x family), which are functionally similar digital-power controllers but use entirely different packages and pinouts, requiring a board redesign. For footprint-compatible replacement, remain within the dsPIC33FJ 80-pin GS608 variants.

エンジニアリング参考データ: DSPIC33FJ32GS608-E/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

Choose the DSPIC33FJ32GS608-E/PT when you need an 80-pin digital-power DSC for SMPS, PFC, UPS or inverter control operating above +85C ambient, with moderate code size (under ~28 KB usable). Choose the DSPIC33FJ64GS608-E/PT if control firmware, communication stacks or data logging will push past 32 KB - it is pin-compatible, so upgrade later costs nothing on the PCB. Choose the -50E/PT speed grade when CPU load estimates exceed about 80% at 40 MIPS, typical in interleaved PFC plus main-converter designs. Choose the -50I/PT only for controlled-environment products where cost matters more than the extended rating. There is no documented cross-brand pin-compatible alternative; TI C2000 parts are functionally similar but require a full board redesign, so stay within the Microchip GS608 80-pin family for drop-in replacement risk mitigation.

代替品との比較

パラメータ この製品 DSPIC33FJ64GS608-E/PT DSPIC33FJ32GS608-50E/PT DSPIC33FJ32GS608-50I/PT DSPIC33FJ64GS608-50E/PT
Package 80-pin TQFP (12 x 12 mm) 80-pin TQFP (12 x 12 mm) - same 80-pin TQFP (12 x 12 mm) - same 80-pin TQFP (12 x 12 mm) - same 80-pin TQFP (12 x 12 mm) - same
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Program Flash 32 KB 64 KB 32 KB 32 KB 64 KB
CPU Speed 40 MIPS 40 MIPS 50MIPS-class speed grade 50MIPS-class speed grade 50MIPS-class speed grade
Operating Temperature -40C to +125C (extended) -40C to +125C -40C to +125C -40C to +85C (industrial) -40C to +125C
Supply Voltage 3.0 V to 3.6 V 3.0 V to 3.6 V 3.0 V to 3.6 V 3.0 V to 3.6 V 3.0 V to 3.6 V
I/O Count 35 35 35 35 35
Digital Power Peripherals High-speed PWM, 10-bit ADC, up to 4 comparators (direct PWM link) Identical peripheral set Identical peripheral set Identical peripheral set Identical peripheral set

主な差別化要因

  • Extended temperature rating for hot power enclosures (vs DSPIC33FJ32GS608-50I/PT)
  • Flash headroom without board change (vs DSPIC33FJ64GS608-E/PT)
  • Balanced cost/performance within the GS608 speed grades (vs DSPIC33FJ32GS608-50E/PT)
  • Dedicated digital-power peripheral architecture (vs DSPIC33FJ64GS608-50E/PT)

設計ノート

Supply the DSPIC33FJ32GS608-E/PT from a clean 3.0 V to 3.6 V rail. Decouple every VDD pin with 100 nF ceramic capacitors placed within 3 mm of the pin, plus bulk 10 uF at the board level. Power AVDD separately through an RC or ferrite-bead filter (e.g., 10 ohm + 1 uF) from the digital rail so ADC reference noise stays low; a switching-buck-derived rail can inject ripple that appears directly as ADC code noise in your current-feedback loop.

Route PWM outputs (PORTE, pins 20-27) away from analog inputs (PORTB) to prevent gate-drive switching coupling into ADC channels. Keep PGECx/PGEDx ICSP pairs routed as matched short traces to a programming header - remember the rule from the family documentation: clock and data must come from the same pair (e.g., PGEC2 with PGED2). The 0.5 mm pitch TQFP needs a standard solder-mask-defined footprint per the Microchip package drawing; verify land pattern against the current package outline document.

The -E suffix is required for reliable operation above +85C ambient; the -I industrial grade parts will run outside specification in hot power-supply enclosures. Do not exceed the 3.6 V absolute maximum on any VDD/AVDD pin - 5 V logic interfacing requires level shifting. Configure the comparator-to-PWM direct connection in firmware at startup; relying only on software ADC overcurrent checks leaves a gap of many microseconds where the power stage is unprotected.

Estimated: keep gate-drive loop inductance low by placing MOSFET drivers within 15 mm of the PWM pins and using ground pours under each PWM trace; at 40 MIPS the controller can update PWM duty every switching cycle, so trace delay differences between high/low gate signals appear as effective dead-time mismatch. Use series termination (22-33 ohm) on long PWM runs to damp ringing and reduce EMI at MHz-class edges.

コンプライアンス情報

RoHS
Compliant
REACH
Unknown
AEC-Q100
Not Applicable
鉛フリー
Yes
ハロゲンフリー
Unknown
紛争鉱物
Unknown

Package described as lead-free plastic TQFP in datasheet snippets; RoHS compliance per distributor listings (DigiKey/Mouser). REACH, halogen-free and conflict-minerals declarations not stated in provided data.

データ検証日: 2026-09-27 — データはXAIPARTの部品エンジニアリングチームによって検証・管理されています

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