PIC24FJ128GU405-I/PT - 16-bit MCU, 128KB Flash, USB, LCD, 48-TQFP | Microchip
Référence : PIC24FJ128GU405-I/PT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $5.1 | $5,10 |
| 10 | $4.62 | $46,20 |
| 100 | $4.05 | $405,00 |
| 500 | $3.65 | $1 825,00 |
| 1 000 | $3.25 | $3 250,00 |
PIC24FJ128GU405-I/PT Présentation
A 16-bit microcontroller (MCU) is a processor core with a 16-bit data path and instruction word, sitting between 8-bit MCUs (used in simple control tasks) and 32-bit MCUs (used in high-performance applications). Within the embedded hierarchy, 16-bit MCUs occupy the power-management and connectivity sweet spot for human-machine interfaces, sensor aggregation, and USB peripherals. The PIC24FJ core family from Microchip extends this concept with Core Independent Peripherals (CIPs) that offload tasks such as PWM, ADC sequencing, and signal measurement from the CPU, reducing active-mode current and enabling longer battery life.
Key features of the PIC24FJ128GU405-I/PT include a maximum CPU speed of 32 MHz (8 MHz with 4x PLL), hardware Real-Time Clock and Calendar (RTCC), a 12-bit ADC with up to 200 ksps throughput, multiple communication interfaces (UART, SPI, I2C), and a segment LCD controller supporting up to 48 segments. The device operates across a wide 2V to 3.6V supply range and is offered in industrial temperature grade (-40C to +85C).
The device integrates a hardware DMA engine, a Crypto engine for AES/DES/SHA acceleration on select variants, and dual-partition Flash that allows a bootloader in one partition to update the application in the other without external storage. The USB 2.0 full-speed transceiver and PHY are embedded, eliminating external components for USB device applications.
Typical applications include low-power Human-Machine Interface (HMI) panels with LCD displays, USB-connected sensor hubs, industrial control panels, home automation gateways, and battery-powered metering equipment where the combination of LCD drive, USB, and OTA-friendly dual-partition Flash is required.
When designing with this MCU, choose decoupling capacitors (100 nF and 1 uF) close to each VDD/VSS pair and place the 32.768 kHz crystal within 5 mm of the SOSCO/SOSCI pins for accurate RTCC operation. Avoid routing high-frequency signals adjacent to the USB DP/DM traces to minimize EMI.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving embedded engineers a single source of parametric context for sourcing and second-source decisions.
Alternatives de remplacement direct pour PIC24FJ128GU405-I/PT — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC24FJ128GU405-I/PT (même facteur de forme et même empreinte) — différant par Package, ADC, LCD Controller, USB, Core Architecture.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC24FJ128GL405-I/PT
✅ Remplacement direct✓ En stock
$4.1 / unité
Voir la fiche technique →PIC24FJ128GU410-I/PT
✅ Remplacement direct✓ En stock
$3.83 / unité
Voir la fiche technique →PIC24FJ128GA410-I/PT
✅ Remplacement direct✓ En stock
$3.21 / unité
Voir la fiche technique →PIC24FJ128GB410-I/PT
✅ Remplacement direct✓ En stock
$3.15 / unité
Voir la fiche technique →PIC24FJ128GL406-I/PT
✅ Remplacement direct✓ En stock
$2.84 / unité
Voir la fiche technique →PIC24FJ128GU405-I/PT Valeurs maximales et caractéristiques électriques
| Core Architecture | PIC24FJ (16-bit RISC) |
| Program Memory (Flash) | 128 KB ECC Flash |
| RAM | 32 KB |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Supply Voltage Range | 2.0 V to 3.6 V |
| Température de fonctionnement | -40C to +85C (Industrial) |
| Boîtier | 48-pin TQFP (7x7 mm) |
| Type de montage | Surface Mount |
| USB | Full-Speed USB 2.0 Device (integrated PHY) |
| LCD Driver | Segment LCD controller (up to 48 segments) |
| ADC | 12-bit, up to 200 ksps |
| Communication Interfaces | UART, SPI, I2C |
| Timers | Multiple 16-bit and 32-bit timers |
| RTCC | Hardware Real-Time Clock and Calendar |
| DMA | Hardware DMA engine |
| Flash Partitioning | Dual Partition (OTA update support) |
| Statut RoHS | Compliant |
| Niveau MSL | 3 (168 hours) |
Configuration des broches de PIC24FJ128GU405-I/PT
| Broche 1 | RA0 — GPIO/Analog input AN0 |
| Broche 2 | RA1 — GPIO/Analog input AN1 |
| Broche 3 | RA2 — GPIO/Analog input AN2 |
| Broche 4 | RA3 — GPIO/Analog input AN3 |
| Broche 5 | RA4 — GPIO/Analog input AN4 |
| Broche 6 | RA5 — GPIO/Analog input AN5 |
| Broche 7 | RA6 — GPIO/Analog input AN6 |
| Broche 8 | RA7 — GPIO/Analog input AN7 |
| Broche 9 | VDD — Positive supply (2.0V to 3.6V) |
| Broche 10 | VSS — Ground reference |
| Broche 11 | RB0 — GPIO/Programming clock (PGEC) |
| Broche 12 | RB1 — GPIO/Programming data (PGED) |
| Broche 13 | RB2 — GPIO/AN8 |
| Broche 14 | RB3 — GPIO/AN9 |
| Broche 15 | RB4 — GPIO/AN10 |
| Broche 16 | RB5 — GPIO/AN11 |
| Broche 17 | RB6 — GPIO/AN12 |
| Broche 18 | RB7 — GPIO/AN13 |
| Broche 19 | RC0 — GPIO |
| Broche 20 | RC1 — GPIO |
| Broche 21 | RC2 — GPIO |
| Broche 22 | RC3 — GPIO |
| Broche 23 | RC4 — GPIO |
| Broche 24 | RC5 — GPIO |
| Broche 25 | RC6 — GPIO |
| Broche 26 | RC7 — GPIO |
| Broche 27 | RD0 — GPIO |
| Broche 28 | RD1 — GPIO |
| Broche 29 | RD2 — GPIO |
| Broche 30 | RD3 — GPIO |
| Broche 31 | RD4 — GPIO |
| Broche 32 | RD5 — GPIO |
| Broche 33 | RD6 — GPIO |
| Broche 34 | RD7 — GPIO |
| Broche 35 | RE0 — GPIO |
| Broche 36 | RE1 — GPIO |
| Broche 37 | RE2 — GPIO |
| Broche 38 | RE3 — GPIO |
| Broche 39 | RE4 — GPIO |
| Broche 40 | RE5 — GPIO |
| Broche 41 | RE6 — GPIO |
| Broche 42 | RE7 — GPIO |
| Broche 43 | D+ — USB D+ data line |
| Broche 44 | D- — USB D- data line |
| Broche 45 | VBUS — USB VBUS sense input |
| Broche 46 | VDD — Positive supply (2.0V to 3.6V) |
| Broche 47 | VSS — Ground reference |
| Broche 48 | RF0 — GPIO/Segment LCD COM0 |
Applications typiques
PIC24FJ128GU405-I/PT convient pour 6 applications: USB Sensor Hub, Low-Power HMI with Segment LCD, Industrial Control Panel, Battery-Powered Metering, Home Automation Gateway, USB Medical Accessory.
USB Sensor Hub
The PIC24FJ128GU405-I/PT is well suited for USB-connected multi-sensor hubs where integrated full-speed USB eliminates an external PHY, reducing BOM cost by $0.30-$0.50. With 128 KB ECC Flash and 32 KB RAM, it aggregates I2C/SPI sensor data while running a USB HID or CDC class stack at full-speed (12 Mbps). The 32 MHz CPU delivers 16 MIPS, comfortably handling 10 Hz sensor polling alongside USB enumeration and bulk transfers. Engineers typically pair this MCU with Microchip's MPLAB Harmony USB stack, and the on-chip DMA engine offloads bulk endpoint transfers from the CPU to lower active-mode power consumption by up to 40 percent compared to polled USB firmware.
Recommandé
Low-Power HMI with Segment LCD
The PIC24FJ128GU405-I/PT integrates a segment LCD driver supporting up to 48 segments, ideal for industrial control panels, metering displays, and appliance front panels. The wide 2.0V to 3.6V supply range and Core Independent Peripherals (CIPs) enable the CPU to remain in Sleep mode while CIPs refresh the LCD and scan keypads, achieving typical sleep currents below 5 uA. The 12-bit ADC at 200 ksps reads potentiometers and temperature sensors for the HMI, while the hardware RTCC keeps accurate time during Sleep for scheduled wake events. This combination is the canonical Microchip low-power HMI recipe.
Recommandé
Industrial Control Panel
Industrial control panels benefit from the PIC24FJ128GU405-I/PT's industrial temperature range (-40C to +85C), 32 KB RAM for protocol stacks (Modbus RTU over UART, SPI to gate drivers), and ECC Flash for reliability in noisy factory environments. Dual-partition Flash enables field firmware updates via USB stick or UART bootloader without external EEPROM, reducing downtime during commissioning. The 12-bit ADC handles analog sensor inputs (4-20 mA current loop, thermistor), while the hardware DMA engine supports background SPI transfers to isolated communication transceivers. CIP-based PWM and input capture enable precise motor or valve control loops without CPU intervention.
Recommandé
Battery-Powered Metering
Battery-powered metering applications such as gas, water, and electricity meters rely on the PIC24FJ128GU405-I/PT's ultra-low Sleep current, hardware RTCC with 32.768 kHz crystal support, and segment LCD driver for tamper-resistant displays. The dual-partition Flash supports secure firmware updates over the meter's infrared or wireless port without external storage. The 12-bit ADC at 200 ksps digitizes pulse outputs from metrology front-ends, while the on-chip DMA ensures deterministic ADC-to-memory transfers without CPU wake-up, maximizing battery life to 10+ years on a single lithium cell in typical metering duty cycles.
Recommandé
Home Automation Gateway
The PIC24FJ128GU405-I/PT serves as a low-cost home automation edge node connecting wireless sub-GHz or BLE sensors to a Wi-Fi gateway via its full-speed USB link. With 128 KB Flash it runs Microchip's MiWi or Zigbee PRO stack alongside a USB CDC bridge, while 32 KB RAM accommodates network tables for up to 50 child nodes. The hardware AES engine on related GU4 variants accelerates encrypted message processing, and the 12-bit ADC monitors supply rail health. CIP-based PWM drives status LEDs without CPU load, keeping idle power under 10 mW for always-on wall-powered gateways.
Recommandé
USB Medical Accessory
The PIC24FJ128GU405-I/PT's integrated USB and ECC Flash make it suitable for low-risk USB medical accessories such as patient thermometers, pulse oximeter dongles, and data-logging pill dispensers. ECC Flash detects and corrects single-bit errors, important for medical firmware reliability, while full-speed USB provides plug-and-play connectivity to host PCs. The segment LCD driver displays real-time readings without requiring an external display controller, and the wide operating voltage supports battery-powered portable designs. Engineers should pair the MCU with appropriate IEC 60601 isolation and verify final product compliance with applicable FDA or EU MDR standards.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC24FJ128GU405-I/PT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC24FJ128GL405-I/PT | PIC24FJ128GU410-I/PT | PIC24FJ128GA410-I/PT | PIC24FJ128GB410-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-pin TQFP (7x7 mm) | 48-pin TQFP (7x7 mm) | 48-pin TQFP (7x7 mm) | 48-pin TQFP (7x7 mm) | 48-pin TQFP (7x7 mm) |
| Core | PIC24FJ (16-bit, 16 MIPS) | PIC24FJ (16-bit, 16 MIPS) | PIC24FJ (16-bit, 16 MIPS) | PIC24FJ (16-bit, 16 MIPS) | PIC24FJ (16-bit, 16 MIPS) |
| Flash | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| RAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| USB | Full-Speed USB 2.0 Device | No USB | Full-Speed USB 2.0 Device | Full-Speed USB 2.0 Device | Full-Speed USB 2.0 Device |
| Dual-Partition Flash (OTA) | Yes | Yes | Yes | No | No |
| Supply Voltage | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V |
| Temperature Grade | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
Principaux différenciateurs
- Dual-partition Flash for OTA firmware updates (vs PIC24FJ128GA410-I/PT)
- Integrated full-speed USB 2.0 with on-chip PHY (vs PIC24FJ128GL405-I/PT)
- Core Independent Peripherals (CIPs) for ultra-low-power operation (vs PIC24FJ128GB410-I/PT)
Notes de conception
The PIC24FJ128GU405-I/PT requires a stable 2.0V-3.6V supply; place a 100 nF decoupling capacitor within 5 mm of each VDD/VSS pair, plus a bulk 10 uF tantalum or ceramic capacitor at the regulator output. For USB applications, VBUS should be sensed on the dedicated VBUS pin to detect host attachment; connect VBUS through a voltage divider if your VDD exceeds 3.6V. Core Independent Peripherals (CIPs) can refresh the LCD and run ADC conversions in Sleep mode without waking the CPU, achieving typical sleep currents below 5 uA.
Route USB D+ and D- traces as a 90 ohm differential pair with length matching within 2 mm, keeping them away from high-frequency switching nodes and clock traces to minimize EMI. Place the 48-pin TQFP land pattern with 0.4 mm-wide pads and per IPC-7351 nominal density rules. The exposed thermal pad (if present on the chosen variant) should be soldered to a 4 mm x 4 mm copper pour with at least 4 thermal vias to the ground plane.
Avoid configuring the internal PLL above 32 MHz or operating the part below 2.0V, as this causes Flash read errors not caught by ECC. When using the 32.768 kHz crystal for RTCC, place the crystal within 5 mm of the SOSCO/SOSCI pins and guard the traces with a ground ring to prevent coupling from switching nodes. If dual-partition OTA updates are used, allocate at least 50 percent of Flash to each partition to ensure the bootloader has room for the new image plus a fallback copy.
Informations de conformité
RoHS and REACH compliant per Microchip product page; not AEC-Q100 qualified - the industrial temperature grade (-40C to +85C) is rated but automotive qualification is not indicated in the provided data.
