PIC24FJ256GA110-E/PT - 32MHz 16-bit MCU 256KB Flash | Microchip
Référence : PIC24FJ256GA110-E/PT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $9.85 | $9,85 |
| 10 | $8.92 | $89,20 |
| 100 | $7.45 | $745,00 |
| 500 | $6.32 | $3 160,00 |
| 1 000 | $5.18 | $5 180,00 |
PIC24FJ256GA110-E/PT Présentation
What is a PIC24F microcontroller? A PIC24F is a 16-bit flash microcontroller from Microchip's PIC24 family, positioned between 8-bit PIC16/PIC18 devices and the dsPIC33/DSP-capable parts. The 'FJ' sub-family adds eXtreme Low Power (XLP) technology with nanoWatt sleep currents (<100 nA standby), USB-OTG peripherals, and Peripheral Pin Select (PPS) that allows digital peripheral pins to be remapped at runtime. It is part of the broader hierarchy: MCU -> microcontroller -> embedded controller -> semiconductor.
Key features include 85 I/O pins, three I2C, three SPI, four UART channels, 23 independent timers, a 16-channel 10-bit ADC, two comparators, and a hardware crypto engine for AES/DES. The 'E' suffix denotes the extended operating temperature grade (-40 C to +125 C), while the 'I' grade parts cover the industrial -40 C to +85 C range.
The device uses a 16-bit modified Harvard architecture with a hardware multiply/divide unit and a 24-bit instruction word, achieving 1.5 MIPS/MHz. Its 256 KB Flash is divided into multiple panels for live update support, and the 16 KB SRAM is large enough for buffering communication stacks, audio frames, or display buffers.
Typical applications include industrial control panels, USB peripherals, low-power sensor hubs, graphic LCD interfaces, and battery-powered instrumentation. The high pin count (100 TQFP) makes it suitable for systems that need parallel buses, multiple serial ports, and abundant analog inputs.
When designing with this part, ensure the regulator supplies a stable 2.0-3.6 V rail and place decoupling capacitors within 5 mm of every VDD/VSS pair. Use PPS to reassign peripheral pins after PCB layout is fixed. Migrating from the 'I' grade PIC24FJ256GA110-I/PT requires only swapping the part number if the wider temperature range is acceptable.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the standalone manufacturer datasheet, giving engineers a single reference for part selection and PCB layout reuse.
Alternatives de remplacement direct pour PIC24FJ256GA110-E/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 PIC24FJ256GA110-E/PT (même facteur de forme et même empreinte) — différant par ADC, Package, Timers, Core Architecture, Operating Temperature.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC24FJ256GA110-I/PT
✅ Remplacement direct✓ En stock
$5.61 / unité
Voir la fiche technique →PIC24FJ256DA206-I/PT
✅ Remplacement direct✓ En stock
$5.39 / unité
Voir la fiche technique →PIC24FJ256GB110-I/PT
✅ Remplacement direct✓ En stock
$5.62 / unité
Voir la fiche technique →PIC24FJ192GA110-E/PT
✅ Remplacement direct✓ En stock
$8.62 / unité
Voir la fiche technique →PIC24FJ128GA610-E/PT
✅ Remplacement direct✓ En stock
$4.12 / unité
Voir la fiche technique →PIC24FJ128GB110-I/PT
✅ Remplacement direct✓ En stock
$3.78 / unité
Voir la fiche technique →PIC24FJ256GA110-E/PT Valeurs maximales et caractéristiques électriques
| Core Architecture | 16-bit PIC24F (modified Harvard) |
| CPU Speed | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 256 KB (85.5K x 24) |
| RAM | 16 KB |
| Operating Voltage | 2.0 V to 3.6 V |
| I/O Pins | 85 |
| ADC | 16 channels x 10-bit |
| Comparators | 2 |
| UART | 4 |
| I2C | 3 |
| SPI | 3 |
| Timers | 23 (16-bit / 32-bit) |
| Température de fonctionnement | -40 C to +125 C (E grade) |
| Boîtier | 100-pin TQFP (12x12 mm) |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
| Standby Current | <100 nA (nanoWatt XLP) |
Configuration des broches de PIC24FJ256GA110-E/PT
| Broche 1 | RP15/PMD15/AN15/CVREF/RC15 — Remappable I/O, PMP data, ADC analog input, comparator reference |
| Broche 10 | AN17/RP13/RC13 — Analog input and remappable I/O |
| Broche 20 | VDD — Digital supply 2.0-3.6 V |
| Broche 30 | OSC1/RC12 — Crystal oscillator input |
| Broche 40 | RP9/PMD9/AN21/RB9 — Remappable I/O, PMP data, analog input |
| Broche 50 | VSS — Digital ground |
| Broche 60 | RP5/PMD5/RB5 — Remappable I/O and PMP data |
| Broche 70 | RP1/PMRD/RB1 — Remappable I/O, PMP read strobe |
| Broche 80 | AVSS — Analog ground for ADC |
| Broche 90 | RP23/PMD23/AN7/RB15 — Remappable I/O, PMP data, analog input |
| Broche 100 | RP14/PMD14/RC14 — Remappable I/O and PMP data |
Applications typiques
PIC24FJ256GA110-E/PT convient pour 6 applications: Industrial Control Panels and PLC I/O Modules, USB Peripherals and HID Devices, Low-Power Sensor Hubs and Battery Instrumentation, Graphical LCD HMI and Operator Panels, Automotive Body and HVAC Modules, Medical Monitoring and Diagnostic Devices.
Industrial Control Panels and PLC I/O Modules
The PIC24FJ256GA110-E/PT's 85 I/O pins, four UARTs, three SPI/I2C, and 16-channel 10-bit ADC make it a strong fit for industrial control panels and PLC I/O modules that must aggregate many digital sensors and actuators. Its 256 KB Flash accommodates Modbus RTU/TCP stacks, IEC 61131-3 style runtime firmware, and HMI menus without external memory, while the 16 KB RAM buffers incoming protocol frames. The -40 C to +125 C extended temperature grade (E suffix) ensures reliable operation inside sealed cabinets near motor drives and switchgear.
Recommandé
USB Peripherals and HID Devices
For USB peripherals, the PIC24FJ256GA110-E/PT delivers 16 MIPS at 32 MHz, which is enough throughput for HID, CDC, and vendor-class USB stacks running in software on its general-purpose peripherals. The 256 KB Flash fits the Microchip MLA USB stack plus application code with comfortable margin, and the 16 KB RAM holds the USB endpoint buffers and protocol state. If hardware USB-OTG is required (host role, OTG SRP/HNP), upgrading to PIC24FJ256DA206-I/PT is the typical path because the GA1xx family lacks the dedicated USB-OTG controller.
Recommandé
Low-Power Sensor Hubs and Battery Instrumentation
The PIC24FJ256GA110-E/PT leverages nanoWatt XLP technology to achieve standby currents below 100 nA, enabling multi-year battery life on 2xAA cells in sensor hubs. Its 16-channel 10-bit ADC reads thermistors, photocells, and 4-20 mA loop sensors, while the four UARTs and three I2C ports handle concurrent wireless modules (BLE, LoRa, Sub-GHz) and local sensor I/O. Designers should use Sleep + RTCC wake modes between samples; the 23 timers and PWMs support duty-cycled sensor excitation for lowest quiescent drain.
Recommandé
Graphical LCD HMI and Operator Panels
The 100-pin TQFP variant exposes parallel data and control lines that map cleanly to 320x240 QVGA TFT LCDs and OLED modules used in operator panels. The 256 KB Flash holds large bitmaps and Unicode font tables, and the 16 KB RAM can store partial framebuffers. For richer graphics, the drop-in PIC24FJ256GB110-I/PT adds the PMP (Parallel Master Port) peripheral that offloads the LCD data transfer, leaving the CPU free for animation and touch processing.
Recommandé
Automotive Body and HVAC Modules
Although not AEC-Q100 qualified, the PIC24FJ256GA110-E/PT's extended -40 C to +125 C temperature range and 85 I/O pins are widely used in non-safety automotive body and HVAC modules such as seat controllers, mirror modules, and climate panel interfaces. The four UARTs handle LIN/CAN bridges via external transceivers, while the three SPI ports drive graphic displays and BLDC motor pre-drivers. For AEC-Q100 body-domain requirements, designers should migrate to PIC24HJ256GA114-I/PT or dsPIC33 variants that carry formal automotive qualification.
Recommandé
Medical Monitoring and Diagnostic Devices
The PIC24FJ256GA110-E/PT's 16 MIPS performance, large Flash, and abundant serial peripherals make it suitable for non-critical medical monitoring and diagnostic devices such as blood pressure cuffs, pulse oximeters, and portable spirometers. Its 16-channel 10-bit ADC provides sufficient resolution for amplified sensor signals, and the four UARTs allow simultaneous connection to BLE modules, displays, and external A/D front-ends. Designers must verify IEC 60601-1 software lifecycle and risk management compliance for their end-product; the E temperature grade supports the operating ranges typical of clinical environments.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC24FJ256GA110-E/PT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC24FJ256GA110-I/PT | PIC24FJ256DA206-I/PT | PIC24FJ256GB110-I/PT | PIC24FJ192GA110-E/PT | PIC24FJ128GA610-E/PT |
|---|---|---|---|---|---|---|
| Package | 100-pin TQFP (12x12 mm) | 100-pin TQFP - same | 100-pin TQFP - same | 100-pin TQFP - same | 100-pin TQFP - same | 100-pin TQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) |
| Flash Memory | 256 KB | 256 KB | 256 KB | 256 KB | 192 KB (-25%) | 128 KB (-50%) |
| RAM | 16 KB | 16 KB | 24 KB (+50%) | 24 KB (+50%) | 16 KB | 8 KB (-50%) |
| I/O Pins | 85 | 85 | 85 | 85 | 85 | 85 |
| Operating Temperature | -40 C to +125 C (E grade) | -40 C to +85 C (I grade) | -40 C to +85 C (I grade) | -40 C to +85 C (I grade) | -40 C to +125 C (E grade) | -40 C to +125 C (E grade) |
| USB-OTG Controller | No (software USB only) | No (software USB only) | Yes (hardware USB-OTG) | Yes (USB + PMP) | No (software USB only) | Yes (hardware USB) |
Principaux différenciateurs
- Largest Flash in the PIC24FJ256GA1xx family (vs PIC24FJ192GA110-E/PT)
- Hardware-software balance without USB-OTG overhead (vs PIC24FJ256DA206-I/PT)
- Extended temperature grade in the 256 KB Flash tier (vs PIC24FJ256GA110-I/PT)
- Most cost-effective 100-TQFP 256 KB Flash option in the GA1xx family (vs PIC24FJ256GB110-I/PT)
Notes de conception
Place a 100 nF decoupling capacitor within 5 mm of every VDD/VSS pair and a single bulk 10 uF tantalum or ceramic capacitor on the main 3.3 V rail. For ADC noise-sensitive applications, add a small ferrite bead between digital VDD and analog AVDD plus a separate 100 nF + 10 uF on AVDD. The on-chip 1.8 V regulator supplies the core; do not load the VCAP pin externally.
The 100-pin TQFP uses 0.5 mm pitch with the exposed thermal pad electrically tied to VSS. Use 4-layer PCB with a continuous ground pour under the MCU; stitch vias around the thermal pad every 2 mm to dissipate up to 1 W. Route all PPS-mapped peripheral signals (UART, SPI, I2C) with 50 ohm impedance controlled traces and length matching within 25 mm if using SPI at 10 MHz or higher.
Estimated: at 32 MHz and 3.3 V with all peripherals active, core current is around 25-30 mA; in Sleep + RTCC mode it drops below 100 nA. Do not connect 5 V signals directly to digital I/O without verifying 5 V tolerance in the specific pin's input mode. When migrating from the 'I' grade, remember the E grade adds higher operating temperature but identical electrical behavior.
Use PPS (Peripheral Pin Select) to remap UART/SPI/I2C pins post-layout to fix routing congestion, but always read the unlock sequence from the datasheet - locked PPS registers are a common boot-failure cause. For SPI peripherals above 8 MHz, add a 33 ohm series resistor at the MCU pin to dampen ringing from the TQFP lead inductance.
Informations de conformité
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified; for AEC-Q100 automotive applications use the dsPIC33EV or PIC24HJ automotive families.
