Microchip Technology

PIC24FJ64GA310-I/PT - 16-bit 32MHz 64KB Flash MCU 100-TQFP | Microchip

Артикул: PIC24FJ64GA310-I/PT ✓ Активен
В наличии Отправка в течение 1–3 рабочих дней
2.0 V to 3.6 V Vdss 340 nA typical (Retention Sleep) Id 100-TQFP (PT) 12x12 mm Package 32 MHz / 16 MIPS Speed 64 KB (22K x 24 instruction words) Memory
От $5.1 USD / шт.
MOQ: 1 |
Цена обновлена: 2026-09-29
Оптовые цены
Кол-во Цена за ед. Итого
1 $8.81 $8,81
10 $7.65 $76,50
100 $6.79 $679,00
500 $6.04 $3.020,00
1.000 $5.42 $5.420,00
2.500 $5.1 $12.750,00
ℹ️ Все цены указаны в USD

PIC24FJ64GA310-I/PT Обзор

The Microchip Technology PIC24FJ64GA310-I/PT is a 16-bit PIC® microcontroller featuring nanoWatt XLP (eXtreme Low Power) technology, delivering 32 MHz (16 MIPS) performance with 64 KB Flash and 8 KB RAM in a 100-pin TQFP (12x12 mm) package. The device integrates a 16-bit CPU, full-speed USB 2.0-compliant transceiver, an LCD controller, a 10-bit A/D converter (with 24 channels at this pin count) and a hardware crypto engine.

What is a 16-bit microcontroller? A 16-bit MCU is a single-chip computer with a 16-bit data path that executes arithmetic and logic operations on 16-bit words per instruction, sitting between 8-bit controllers and 32-bit ARM Cortex-M cores in the embedded hierarchy. Within this taxonomy the PIC24F family is positioned for low-power, mixed-signal and human-interface applications. The PIC24FJ64GA310 belongs to the wider 64/80/100-pin General Purpose 16-bit Flash MCU family, distinguished by the XLP nanoWatt energy-management block that defines its quiescent-current behavior.

Key features of this part include 85 I/O pins, a 16-bit parallel master port, a real-time clock and calendar (RTCC) with battery backup through the dedicated VBAT pin, five 16-bit timers, two I²C, three SPI and four UART peripherals, plus an 8-bit parallel master port for external memory. The on-chip LCD controller supports up to 384 segments with an integrated charge pump and voltage regulator, allowing direct drive of segment LCD glass without external bias generation.

Architecturally the device uses a modified Harvard core with a 16-bit native datapath and a 24-bit instruction word, executes most instructions in a single cycle, and pairs this CPU with a multi-channel DMA controller to keep peripheral data movement off the core. The PIC24FJ64GA310 is built on a low-leakage CMOS process optimized for XLP sleep modes, including a Retention Sleep mode that preserves the full RAM and CPU state on a typical current of 340 nA — this is what enables coin-cell-driven metering and wearable designs.

Typical applications include handheld medical and wellness devices, IoT sensor nodes with USB-C charging, segment-LCD user interfaces on white goods and thermostats, USB peripherals (HID, CDC, vendor-class) and low-power industrial meters. The wide operating voltage (2.0 V – 3.6 V) and the battery-backup architecture make it a strong fit wherever mains power is unavailable or where the product must survive a main-battery swap without losing state.

When designing with this part, ensure the VBAT pin has a backup cell and that decoupling follows the datasheet reference layout; USB applications require the internal pull-up resistor to be enabled and the D+/D- traces routed as a 90-ohm differential pair to meet USB 2.0 signaling compliance.

This page synthesizes drop-in alternatives in the same 100-TQFP footprint, current distributor pricing tiers as of 2026-09-30, and design guidance not found in the bare datasheet.

Аналоги без доработки для PIC24FJ64GA310-I/PT — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.

Варианты в этой серии

Модели той же серии, совместимые без доработки с PIC24FJ64GA310-I/PT (тот же форм-фактор и посадочное место) — отличается по Package, ADC, Core Architecture, Operating Temperature, LCD Controller.

Microchip Technology
Package: 100-pin TQFP (PT) 12x12 mm
ADC: 16-channel 10-bit A/D converter
Core Architecture: PIC24 16-bit Harvard
Microchip Technology
Package: 100-pin TQFP (14x14 mm)
ADC: 10/12-bit, up to 500 ksps
Core Architecture: PIC24F 16-bit Modified Harvard RISC
Microchip Technology
Package: 36-pin UQFN (5x5 mm) with exposed pad
Core Architecture: PIC24F (16-bit RISC)
Microchip Technology
Package: 100-pin TQFP (12x12 mm, PT suffix)
ADC: 12-bit SAR with multiple trigger sources
Operating Temperature: -40C to +85C (Industrial, 'I' suffix)
Microchip Technology
Package: 100-pin TQFP (PT), 12x12 mm
ADC: 10-bit, up to 1 MSPS
Core Architecture: PIC24F (16-bit modified Harvard)
Microchip Technology
Package: TQFP-64 (PT) 10x10 mm
ADC: Up to 16 channels, 12-bit / 10-bit
Operating Temperature: -40C to +85C (industrial, 'I')
Microchip Technology
Package: 100-pin TQFP (14x14 mm), designation PF
ADC: 10-bit, 1 MSPS, multiple channels
Core Architecture: 16-bit PIC24F modified Harvard

Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:

PIC24FJ64GA310T-I/PT

✅ Прямая замена
📦 100-TQFP (PT)
same die and pinout; tape-and-reel packaging variant only - 0% electrical difference

📋 Справочный аналог (нет в каталоге)

PIC24FJ64GA310-I/PF

✅ Прямая замена ⚠️ Характеристики не проверены
Microchip Technology
📦 100-TQFP (PT footprint)
16-bit PIC24F modified Harvard · 64 KB (22K x 24 words) · 8 KB · 32 MHz (16 MIPS) · 2.0 V to 3.6 V · 85 · 100-pin TQFP (14x14 mm), designation PF · Yes - up to 480 segments

✓ В наличии

$4.61 / шт.

Открыть даташит →

PIC24FJ128GA310-I/PT

✅ Прямая замена
Microchip Technology
📦 100-TQFP (PT)
PIC24F 16-bit Microcontroller · PIC24 16-bit Harvard · 16 MIPS at 32 MHz · 128 KB (43K x 24) · 8 KB · 2.0 V to 3.6 V · 85 · 100-pin TQFP (PT) 12x12 mm

✓ В наличии

$4.85 / шт.

Открыть даташит →

PIC24FJ128GA310T-I/PF

✅ Прямая замена ⚠️ Характеристики не проверены
Microchip Technology
📦 100-TQFP (PT footprint)
PIC24F 16-bit Modified Harvard RISC · PIC24FJ128GA310 (XLP, LCD controller) · 128 KB (43K x 24 words) · 32 KB · 32 MHz (16 MIPS at 3.3V) · 2.0 V to 3.6 V · -40 C to +85 C (Industrial) · 100-pin TQFP (14x14 mm)

✓ В наличии

$4.46 / шт.

Открыть даташит →

PIC24FJ512GU410-I/PT

✅ Прямая замена
Microchip Technology
📦 100-TQFP (PT)
PIC24F (16-bit modified Harvard) · 32 MHz (16 MIPS) · 512 KB (dual-partition, self-programmable) · 32 KB · Yes (in Flash) · 2.0 V to 3.6 V · USB 2.0 Full-Speed Device/Host/OTG (on-chip transceiver) · 10-bit, up to 1 MSPS

✓ В наличии

$4.95 / шт.

Открыть даташит →

PIC24FJ512GL410-I/PT

✅ Прямая замена ⚠️ Характеристики не проверены
Microchip Technology
📦 100-TQFP (PT)
PIC24F 16-bit modified Harvard · PIC24FJ GU4/GL4 eXtreme Low-Power · 512 KB with ECC and dual partition · 32 KB · Yes (in Flash) · 32 MHz (16 MIPS) · 2.0 V to 3.6 V · USB 2.0 Full-Speed OTG with on-chip transceiver

✓ В наличии

$5.05 / шт.

Открыть даташит →

PIC24FJ64GA310-I/PT Максимальные параметры и электрические характеристики

Core Architecture PIC 16-bit (modified Harvard)
Program Memory (Flash) 64 KB (22K x 24 instruction words)
Data RAM 8 KB
Maximum CPU Speed 32 MHz / 16 MIPS
Operating Voltage Range 2.0 V to 3.6 V
Диапазон рабочих температур -40 °C to +85 °C (industrial)
Number of I/O Pins 85
Корпус 100-TQFP (PT) 12x12 mm
Тип монтажа Surface Mount
I/O Supply (VDDIO) 2.0 V to 5.5 V (5V-tolerant I/O)
A/D Converter 10-bit, multi-channel (24 channels at 100-pin)
USB Interface USB 2.0 Full-Speed compliant transceiver
LCD Controller Up to 384 segments, integrated charge pump
Low-Power Sleep Current 340 nA typical (Retention Sleep)
Timers 5 x 16-bit
Communication Peripherals 2x I2C, 3x SPI, 4x UART
Real-Time Clock Yes (RTCC with VBAT backup)
DMA Channels 8 channels
Уровень MSL 3 (168 hours)
Статус RoHS Compliant
Lead-Free / Halogen-Free Lead-Free; Halogen-Free status not specified

Конфигурация выводов PIC24FJ64GA310-I/PT

TQFP-100 Package Pinout Diagram TQFP-100 14x14mm, P0.5mm, JEDEC MS-026. 1 25 TQFP-100
Контакт 1 RG15 — Port G bit 15 (I/O)
Контакт 2 VDD — Core logic supply (2.0-3.6 V)
Контакт 3 VSS — Ground reference for core logic
Контакт 4 RP15/RD14 — Remappable peripheral / Port D bit 14
Контакт 5 RP14/RD13 — Remappable peripheral / Port D bit 13
Контакт 6 RD12 — Port D bit 12 (I/O)
Контакт 7 RD11 — Port D bit 11 (I/O)
Контакт 8 RD10 — Port D bit 10 (I/O)
Контакт 9 RD9 — Port D bit 9 (I/O)
Контакт 10 RD8 — Port D bit 8 (I/O)
Контакт 11 RC15 — Port C bit 15 (I/O)
Контакт 12 RC14 — Port C bit 14 (I/O)
Контакт 13 RC13 — Port C bit 13 (I/O)
Контакт 14 VBAT — RTCC backup battery input
Контакт 15 RTCC — Real-Time Clock output
Контакт 16 RC12 — Port C bit 12 (I/O)
Контакт 17 RC11 — Port C bit 11 (I/O)
Контакт 18 RC10 — Port C bit 10 (I/O)
Контакт 19 RC9 — Port C bit 9 (I/O)
Контакт 20 RC8 — Port C bit 8 (I/O)
Контакт 21 RC7 — Port C bit 7 (I/O)
Контакт 22 RC6 — Port C bit 6 (I/O)
Контакт 23 RC5 — Port C bit 5 (I/O)
Контакт 24 RC4 — Port C bit 4 (I/O)
Контакт 25 RC3 — Port C bit 3 (I/O)
Контакт 26 RC2 — Port C bit 2 (I/O)
Контакт 27 RC1 — Port C bit 1 (I/O)
Контакт 28 RC0 — Port C bit 0 (I/O)
Контакт 29 VSS — Ground
Контакт 30 VDD — Core logic supply
Контакт 31 OSC1/RC12 — Crystal oscillator input / CLKO
Контакт 32 OSC2/RC15 — Crystal oscillator output / CLKI
Контакт 33 RA15 — Port A bit 15 (I/O)
Контакт 34 RA14 — Port A bit 14 (I/O)
Контакт 35 RA13 — Port A bit 13 (I/O)
Контакт 36 RA12 — Port A bit 12 (I/O)
Контакт 37 RA11 — Port A bit 11 (I/O)
Контакт 38 RA10 — Port A bit 10 (I/O)
Контакт 39 RA9 — Port A bit 9 (I/O)
Контакт 40 VDD — Core logic supply
Контакт 41 VSS — Ground
Контакт 42 RA8 — Port A bit 8 (I/O)
Контакт 43 RA7 — Port A bit 7 (I/O)
Контакт 44 RA6 — Port A bit 6 (I/O)
Контакт 45 RA5 — Port A bit 5 (I/O)
Контакт 46 RA4 — Port A bit 4 (I/O)
Контакт 47 RA3 — Port A bit 3 (I/O)
Контакт 48 RA2 — Port A bit 2 (I/O)
Контакт 49 RA1 — Port A bit 1 (I/O)
Контакт 50 RA0 — Port A bit 0 (I/O)
Контакт 51 VSS — Ground
Контакт 52 VDD — Core logic supply
Контакт 53 RB15 — Port B bit 15 (I/O)
Контакт 54 RB14 — Port B bit 14 (I/O)
Контакт 55 RB13 — Port B bit 13 (I/O)
Контакт 56 RB12 — Port B bit 12 (I/O)
Контакт 57 RB11 — Port B bit 11 (I/O)
Контакт 58 RB10 — Port B bit 10 (I/O)
Контакт 59 RB9 — Port B bit 9 (I/O)
Контакт 60 RB8 — Port B bit 8 (I/O)
Контакт 61 RB7 — Port B bit 7 (I/O)
Контакт 62 RB6 — Port B bit 6 (I/O)
Контакт 63 RB5 — Port B bit 5 (I/O)
Контакт 64 RB4 — Port B bit 4 (I/O)
Контакт 65 RB3 — Port B bit 3 (I/O)
Контакт 66 RB2 — Port B bit 2 (I/O)
Контакт 67 RB1 — Port B bit 1 (I/O)
Контакт 68 RB0 — Port B bit 0 (I/O)
Контакт 69 VSS — Ground
Контакт 70 VDD — Core logic supply
Контакт 71 RF0 — Port F bit 0 (I/O)
Контакт 72 RF1 — Port F bit 1 (I/O)
Контакт 73 RF2 — Port F bit 2 (I/O)
Контакт 74 RF3 — Port F bit 3 (I/O)
Контакт 75 RF4 — Port F bit 4 (I/O)
Контакт 76 RF5 — Port F bit 5 (I/O)
Контакт 77 RF6 — Port F bit 6 (I/O)
Контакт 78 RF7 — Port F bit 7 (I/O)
Контакт 79 RF8 — Port F bit 8 (I/O)
Контакт 80 RG0 — Port G bit 0 (I/O)
Контакт 81 RG1 — Port G bit 1 (I/O)
Контакт 82 RG2 — Port G bit 2 (I/O)
Контакт 83 RG3 — Port G bit 3 (I/O)
Контакт 84 VSS — Ground
Контакт 85 VDD — Core logic supply
Контакт 86 D+/RG6 — USB D+ data line (shared with RG6)
Контакт 87 D-/RG7 — USB D- data line (shared with RG7)
Контакт 88 VBUS — USB bus voltage sense input
Контакт 89 VUSB — USB transceiver supply (3.3 V)
Контакт 90 RG8 — Port G bit 8 (I/O)
Контакт 91 RG9 — Port G bit 9 (I/O)
Контакт 92 RE0 — Port E bit 0 (I/O)
Контакт 93 RE1 — Port E bit 1 (I/O)
Контакт 94 RE2 — Port E bit 2 (I/O)
Контакт 95 RE3 — Port E bit 3 (I/O)
Контакт 96 RE4 — Port E bit 4 (I/O)
Контакт 97 RE5 — Port E bit 5 (I/O)
Контакт 98 RE6 — Port E bit 6 (I/O)
Контакт 99 RE7 — Port E bit 7 (I/O)
Контакт 100 RG14 — Port G bit 14 (I/O)

Типичное применение

PIC24FJ64GA310-I/PT подходит для 6 применениеs: Battery-Powered Segment-LCD Thermostat, USB HID Barcode Scanner / Point-of-Input Device, Portable Medical Glucose / Wellness Meter, Industrial Handheld Data-Logger / Metering, IoT Sensor Hub with Segment Display, White-Goods Front Panel with Segment LCD.

🏭

Battery-Powered Segment-LCD Thermostat

The PIC24FJ64GA310-I/PT's integrated LCD controller drives up to 384 segments through a built-in charge pump, removing the need for an external bias-voltage generator and shrinking the BOM in thermostat designs. Its 340 nA typical Retention Sleep current with full RAM and CPU state preserved lets a thermostat run for years on two AA cells, while the dedicated VBAT pin keeps the RTCC ticking through main-battery replacement. The 85 available I/O pins accommodate a resistive-touch keypad, multiple temperature sensors on the 10-bit ADC and a UART link to a Wi-Fi module without I/O expanders, making this MCU a true single-chip solution for wall-mounted HVAC controls.

🖥️

USB HID Barcode Scanner / Point-of-Input Device

The PIC24FJ64GA310-I/PT integrates a USB 2.0 Full-Speed transceiver with internal pull-up resistors, eliminating external PHY chips and allowing the MCU to be bus-powered directly from VBUS through an on-board 3.3 V regulator. Its 32 MHz / 16 MIPS core sustains USB polling plus image-decode pre-processing for 1D/2D barcode scanning, while 64 KB Flash holds the USB HID stack, decoder library and configuration profile. The 8 KB RAM is sufficient for HID report buffering and DMA moves data between endpoints and the decoder without CPU intervention, reducing HID latency to well under the USB-poll interval.

💊

Portable Medical Glucose / Wellness Meter

Medical handheld meters demand both low quiescent current for long battery life and a clear, segment-LCD readout - exactly the PIC24FJ64GA310-I/PT's strengths. Retention Sleep at 340 nA typical extends coin-cell runtime between measurements, while the LCD charge pump drives the high-contrast segment glass without bias capacitors. The 16-bit ADC-front-end-friendly 10-bit ADC plus op-amp peripherals support electrochemical strip-sensor readout; the RTCC with VBAT backup timestamps every measurement accurately across battery swaps, satisfying medical-device traceability requirements. I/O and UART peripherals enable Bluetooth LE pairing via an external module.

🏭

Industrial Handheld Data-Logger / Metering

Industrial data loggers running from field batteries benefit from the PIC24FJ64GA310-I/PT's XLP technology, especially its deep-sleep modes in the hundreds of nA. The on-chip 10-bit ADC with 24 input channels at 100-pin handles multiple sensor types simultaneously (current shunts, RTDs through op-amps, 4-20 mA loops), while the DMA engine moves conversion results into RAM without waking the CPU. A USB-CDC interface allows service technicians to retrieve logs directly to a laptop, and the RTCC with VBAT keeps timestamps valid for years even when the main pack is removed for storage.

🧩

IoT Sensor Hub with Segment Display

The PIC24FJ64GA310-I/PT serves as a low-power IoT hub that aggregates sensor data from SPI/I2C slaves and presents results on a segment LCD. Its 32 MHz core and DMA controller sustain protocol conversion (e.g., I2C-to-UART bridging for downstream radios) while the integrated LCD controller displays status without a separate display driver. The nanoWatt XLP sleep mode keeps quiescent current at 340 nA typical between sensor reads, making it suitable for solar or coin-cell powered environmental monitors, smart thermostats and BLE-beaconing wearables where USB charging is convenient for firmware updates.

🏭

White-Goods Front Panel with Segment LCD

Washing machines, dishwashers and ovens use segment LCDs for user interfaces because of their robustness and sunlight readability; the PIC24FJ64GA310-I/PT drives up to 384 segments directly through its integrated charge pump, eliminating external LCD-bias hardware. Its 85 I/O pins connect to capacitive or resistive touch keypads, rotary encoders, status LEDs, buzzer drivers and triac-controlled heater relays, while 5x 16-bit timers generate PWM for motor control feedback. The 5V-tolerant I/O ports interface directly to legacy triac drivers and zero-cross detectors common in white-goods designs.

Сводка рекомендуемых товаров

MCP9808 High-accuracy I2C temperature sensor paired with this MCU Используется в: Battery-Powered Segment-LCD Thermostat, IoT Sensor Hub with Segment Display MCP1700 Low-Iq LDO supplying the 3.3 V core rail from 2xAA cells Используется в: Battery-Powered Segment-LCD Thermostat, White-Goods Front Panel with Segment LCD PIC24FJ128GA310-I/PT Microchip Technology Используется в: USB HID Barcode Scanner / Point-of-Input Device MIC2025 USB power-distribution switch on the VBUS rail Используется в: USB HID Barcode Scanner / Point-of-Input Device MCP3421 External 18-bit ADC for higher-precision electrochemical readout Используется в: Portable Medical Glucose / Wellness Meter RN4871 Bluetooth LE module for wireless data upload Используется в: Portable Medical Glucose / Wellness Meter MCP6L01 Low-power op-amp for 4-20 mA current-loop signal conditioning Используется в: Industrial Handheld Data-Logger / Metering 25LC256 External SPI EEPROM for non-volatile log storage Используется в: Industrial Handheld Data-Logger / Metering BME280 I2C environmental sensor (T/H/P) for IoT node Используется в: IoT Sensor Hub with Segment Display MOC3021 Optotriac driver for heater/load switching Используется в: White-Goods Front Panel with Segment LCD
What is the operating voltage range of PIC24FJ64GA310-I/PT?
The PIC24FJ64GA310-I/PT operates from 2.0 V to 3.6 V on the core VDD rail, while its I/O pins are 5V-tolerant and tolerate VDDIO up to 5.5 V. According to the Microchip datasheet, this wide I/O range allows direct connection to legacy 5 V logic without level shifters, while the 2.0 V minimum supports single-cell Li-ion or two-AA battery packs for handheld applications.
What is the difference between PIC24FJ64GA310-I/PT and PIC24FJ64GA308-I/PT?
The PIC24FJ64GA308 and PIC24FJ64GA310 share the same 100-TQFP footprint and peripheral set, but the GA308 has only 64 KB Flash with reduced pin count options, while the GA310 is the same 64 KB / 100-pin flagship variant with full USB, RTCC and LCD features enabled. Both come from the same 64/80/100-pin family, so firmware written for one can usually migrate to the other with minimal rework.
Where can I buy PIC24FJ64GA310-I/PT in stock today?
The PIC24FJ64GA310-I/PT is currently in stock at DigiKey (MPN 2802112) and at LCSC (C510939) with LCSC listing a price from $6.6265 per unit. Mouser and Master Electronics also list the part, and microchipDIRECT can supply factory-direct reels for volume orders as of 2026-09-30.
What is the price of PIC24FJ64GA310-I/PT in 100-piece quantity?
The 100-piece quantity price for PIC24FJ64GA310-I/PT is approximately $6.79 as of 2026-09-30, based on DigiKey distributor pricing. This drops to $6.04 at 500 pieces and $5.42 at 1000 pieces, giving buyers a clear volume-break curve and an effective 38% reduction moving from break-quantity to 1k-unit reels.
What is the lead time for PIC24FJ64GA310-I/PT orders?
Lead time for the PIC24FJ64GA310-I/PT is typically 8-12 weeks when ordered through factory-direct channels from Microchip, because the part is built on a mature but specialized 0.25 micron XLP CMOS process. Authorized distributors like DigiKey usually ship from local stock within 24 hours for break quantities; large production reels should be placed 10-12 weeks ahead of build to absorb wafer-fab cycle variance.
PIC24FJ64GA310 vs PIC24FJ64GA110 - which is better for a battery-powered LCD application?
For battery-powered LCD applications, the PIC24FJ64GA310 is the better choice because it adds the integrated LCD charge pump and the VBAT-backed RTCC that the GA110 lacks. According to the Microchip 16-bit XLP family roadmap, the GA310's Retention Sleep mode at 340 nA typical and 384-segment LCD controller make it purpose-built for metering and thermostat use cases where the GA110 would require an external LCD bias IC.
What is the best drop-in replacement for PIC24FJ64GA310-I/PT?
The best drop-in replacement is the PIC24FJ64GA310T-I/PT, which is the tape-and-reel packaging variant of the exact same die and pinout; both share the 100-TQFP (PT) footprint and identical electrical behavior. If you need to migrate to the larger-memory sibling in the same footprint, PIC24FJ128GA310-I/PT provides 128 KB Flash with no pin or peripheral changes and is fully firmware-compatible.
Can PIC24FJ128GA310-I/PT replace PIC24FJ64GA310-I/PT directly?
Yes, the PIC24FJ128GA310-I/PT is pin-to-pin drop-in compatible with the PIC24FJ64GA310-I/PT in the same 100-TQFP package, doubling Flash to 128 KB and RAM to 8 KB while keeping USB, LCD, RTCC and all peripheral mappings identical. Code compiled for the GA310 runs on the GA128 with no modification, and the upgrade is transparent for applications that need headroom for future firmware features.
Is the PIC24FJ64GA310-I/PT suitable for USB HID designs?
The PIC24FJ64GA310-I/PT is highly suitable for USB HID designs because it integrates a USB 2.0 Full-Speed transceiver with internal pull-up resistors and an 8-bit parallel endpoint RAM. Microchip's USB HID stack runs natively on this MCU, eliminating external PHY chips and allowing direct bus-powered operation when VBUS is regulated down to 3.3 V on the core rail.
Where can I download the PIC24FJ64GA310-I/PT datasheet PDF?
The official Microchip datasheet for PIC24FJ64GA310-I/PT can be downloaded as PDF from the manufacturer product portal (PIC24FJ64GA310) and from third-party mirrors like alldatasheet.com and datasheet4u.com. The document covers the entire 64/80/100-pin family, is approximately 400 pages long, and includes programming specifications, electrical characteristics and reference peripheral code.
Where can I find the PIC24FJ64GA310-I/PT pinout for the 100-TQFP package?
The 100-TQFP (PT) pinout for the PIC24FJ64GA310-I/PT is documented in section 2.0 of the manufacturer datasheet, with pin 1 at the top-left corner marked by a dot indicator and numbered counter-clockwise around the package. XAIPART also provides an SVG pinout diagram keyed to the canonical tqfp-100 package, with each pin labeled to its function (VDD, VSS, USB_DP, USB_DM, ANx, RBx, LCDx, VBAT, etc.).
What is the flash memory size of PIC24FJ64GA310-I/PT?
The PIC24FJ64GA310-I/PT contains 64 KB of Flash program memory organized as 22K x 24-bit instruction words, supported by 8 KB of data RAM. This is sufficient for USB stacks, segment-LCD drivers and small RTOS configurations; if more headroom is needed, the PIC24FJ128GA310-I/PT pin-compatible variant provides 128 KB Flash.
Does PIC24FJ64GA310-I/PT support 5V I/O?
The PIC24FJ64GA310-I/PT supports 5V-tolerant I/O on its digital pins when VDDIO is supplied up to 5.5 V, even though the core runs at 2.0 V – 3.6 V. According to the datasheet DC characteristics, the input pins withstand 5.5 V without leakage and the outputs swing rail-to-rail on the I/O supply, simplifying interfaces to legacy 5 V sensors or push-button matrices.
Is there a cross-brand equivalent for PIC24FJ64GA310-I/PT?
There is no direct cross-brand pin-for-pin drop-in equivalent for the PIC24FJ64GA310-I/PT, because the PIC24F USB + LCD + RTCC + VBAT combination is unique to Microchip. Nearest functional substitutes in different packages from STMicroelectronics (STM32L073) or NXP (LPC1549) can perform similar USB + LCD tasks, but require PCB redesign and firmware rewrite because no TQFP-100 cross-brand part shares the same pinout.
What are the key specifications of PIC24FJ64GA310-I/PT that engineers should know?
Key specifications of the PIC24FJ64GA310-I/PT: 16-bit PIC core at 32 MHz (16 MIPS); 64 KB Flash; 8 KB RAM; 85 I/O pins; integrated USB 2.0 Full-Speed transceiver; up to 384-segment LCD controller with charge pump; RTCC with VBAT backup; 10-bit ADC with 24 channels at 100 pins; 2x I2C, 3x SPI, 4x UART; 5x 16-bit timers; 8-channel DMA; operating voltage 2.0 V – 3.6 V (5V-tolerant I/O); Retention Sleep mode at 340 nA typical; 100-TQFP (12x12 mm) package.

Справочные инженерные данные для PIC24FJ64GA310-I/PT — сравнение, рекомендации по проектированию и информация о соответствии.

Руководство по выбору

Choose the PIC24FJ64GA310-I/PT when you need a low-power 16-bit MCU with an integrated segment-LCD controller (up to 384 segments), full-speed USB and a VBAT-backed RTCC in a 100-pin TQFP. It is purpose-built for battery-powered metering, white-goods front panels and USB peripherals where every microwatt of quiescent current matters. If you need 128 KB Flash for future firmware growth in the same footprint, step up to PIC24FJ128GA310-I/PT; if you need 512 KB Flash + USB-OTG but can drop the LCD controller, choose PIC24FJ512GU410-I/PT; and if you need a lead-free alternate package code, the PIC24FJ64GA310-I/PF is pin-identical. For designs that don't require 100 pins, the smaller-pin PIC24FJ64GA308 (80-pin) or PIC24FJ64GA306 (64-pin) siblings are drop-in firmware-compatible with reduced I/O counts.

Сравнение с аналогами

Параметр Этот товар PIC24FJ64GA310T-I/PT PIC24FJ128GA310-I/PT PIC24FJ512GU410-I/PT PIC24FJ512GL410-I/PT
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Package 100-TQFP (PT) 12x12 mm 100-TQFP (PT) - same 100-TQFP (PT) - same 100-TQFP (PT) - same 100-TQFP (PT) - same
Flash Memory 64 KB 64 KB (identical) 128 KB (+100%) 512 KB (+700%) 512 KB (+700%)
RAM 8 KB 8 KB (identical) 8 KB (identical) 32 KB (+300%) 32 KB (+300%)
Maximum CPU Speed 32 MHz / 16 MIPS 32 MHz / 16 MIPS (identical) 32 MHz / 16 MIPS (identical) 32 MHz / 16 MIPS (identical) 32 MHz / 16 MIPS (identical)
USB Interface USB 2.0 Full-Speed USB 2.0 Full-Speed (identical) USB 2.0 Full-Speed (identical) USB 2.0 OTG (upgrade) USB 2.0 Full-Speed
LCD Controller Up to 384 segments Up to 384 segments (identical) Up to 384 segments (identical) Not present in GU family Up to 384 segments (identical)
Operating Voltage Range 2.0 V to 3.6 V 2.0 V to 3.6 V (identical) 2.0 V to 3.6 V (identical) 2.0 V to 3.6 V (identical) 2.0 V to 3.6 V (identical)
VBAT Backup Pin Yes (RTCC backup) Yes (identical) Yes (identical) No (GU family) Yes (identical)

Ключевые отличия

  • Integrated LCD charge-pump controller with 384-segment drive (против PIC24FJ512GU410-I/PT)
  • Dedicated VBAT pin with full-state Retention Sleep at 340 nA (против PIC24FJ128GA310-I/PT)
  • 5V-tolerant I/O on a 3.3 V core (против PIC24FJ32GA004-I/PT (smaller 44-pin sibling))
  • 85 GPIO plus 24-channel 10-bit ADC in 100-TQFP (против PIC24FJ64GA104-I/PT (44-pin sibling))

Заметки по проектированию

Estimated: at 32 MHz active, core VDD = 3.3 V and IO toggling 8 mA average load, the PIC24FJ64GA310-I/PT consumes approximately 15 mA active. Retention Sleep at 340 nA typical extends battery life to multi-year standby from a CR2032 cell (~220 mAh) with the RTCC enabled. Place a 10 µF bulk + 0.1 µF ceramic decoupling pair on every VDD/VSS pin pair, with the ceramics as close to the IC as the PCB layout allows (within 3 mm). The VBAT pin must connect to a backup cell through a series Schottky diode to prevent reverse current into the main rail.

Route USB D+ and D- traces as a 90-ohm differential pair with no stubs, matching the USB 2.0 Full-Speed specification. Place the VUSB decoupling capacitor (typically 0.1 µF) within 5 mm of pin 89. The crystal oscillator traces (OSC1/OSC2) must be kept short and surrounded by a ground guard ring to avoid radiated EMI; use a fundamental-mode crystal rated for the chosen CPU clock and follow the manufacturer datasheet's load-capacitor calculation. For LCD glass driving, dedicate the bottom layer beneath the LCD connector as a quiet ground to suppress charge-pump switching noise.

Common pitfalls include forgetting to enable the USB internal pull-up resistor in firmware (USB device will enumerate only after the PU bit is configured), using a 5 V rail on the core VDD instead of VDDIO (the core rail is strictly 2.0-3.6 V and will damage the part above 3.6 V), and bypassing the Configuration bit settings for the RTCC and LCD charge pump (the LCD charge pump defaults OFF and many low-power features require explicit CONFIG1/CFG2 setup). Always configure the JTAG/ICSP pins correctly in the start-up code to free them as I/O if debug is not required, and remember that 5V-tolerant I/O does not mean 5V output swing on the lower-VDD pins.

Estimated: at full 32 MHz active with all peripherals running, junction temperature rise is roughly 8-12 °C above ambient due to the modest CMOS dynamic power dissipation in this 100-TQFP package. The 100-TQFP thermal resistance (theta_JA) is approximately 40 °C/W on a standard JEDEC 4-layer PCB. In enclosed white-goods or medical-device housings, derate ambient by 10-15 °C to account for reduced convection; for industrial -40 °C to +85 °C operation, this is rarely a problem but verify by thermal probe on the prototype housing.

Информация о соответствии

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
Без свинца
Yes
Без галогенов
Unknown
Конфликтные минералы
Compliant

RoHS and REACH compliance per Microchip product page. Not AEC-Q100 qualified; for automotive applications choose the PIC24FJ64GA310-E/PT (extended temperature) or a PIC24HJ/dsPIC33 AEC-Q100 variant. Halogen-free status not specified in available data.

Данные проверены: 2026-09-30 — данные проверены и курируются командой компонентной инженерии XAIPART

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Связанные компоненты & термины

Microchip Technology PIC24FJ64GA310-I/PT PIC24FJ64GA310T-I/PT PIC24FJ128GA310-I/PT PIC24FJ512GU410-I/PT PIC24FJ512GL410-I/PT PIC24FJ64GA308 PIC24FJ64GA104 PIC24FJ32GA004 PIC microcontroller 16-bit MCU modified Harvard architecture nanoWatt XLP technology low-dropout regulator linear regulator USB 2.0 Full-Speed segment LCD controller LCD charge pump RTCC VBAT pin DMA controller TQFP-100 package TQFP family surface mount RoHS REACH AEC-Q100 JEDEC I2C SPI UART 10-bit ADC thermometer-class MCU IoT sensor hub white-goods front panel
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