PIC24FJ64GL302T-I/SO - 16-bit 32MHz 64KB Flash MCU 28-SOIC | Microchip
MPN: PIC24FJ64GL302T-I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.41 | $3.41 |
| 10 | $3.07 | $30.70 |
| 100 | $2.73 | $273.00 |
| 500 | $2.42 | $1,210.00 |
| 1,000 | $2.12 | $2,120.00 |
PIC24FJ64GL302T-I/SO Overview
A 16-bit microcontroller (MCU) is a programmable processor with a 16-bit data path, register width, and ALU width, sitting in the taxonomy between 8-bit MCUs (lower cost, simpler peripherals) and 32-bit MCUs (higher performance, more complex peripherals). The PIC24FJ GL family specifically targets battery-powered and energy-harvesting applications where sleep current in the low hundreds of nA, fast wake-up, and integrated analog/LCD peripherals reduce total BOM and extend battery life. Its Core Independent Peripherals (CIPs) operate without CPU intervention, allowing the core to remain asleep while tasks like LCD animation, ADC scanning, or waveform generation continue.
Key features of the PIC24FJ64GL302 include nanoWatt XLP technology with sleep currents as low as a few hundred nA with full RAM and LCD retention, a 12-bit ADC and 10-bit DAC, multiple PWM outputs, a real-time clock calendar (RTCC), and hardware crypto engine on compatible variants. The device operates from 2.0V to 3.6V and supports the industrial -40C to +85C temperature range. On-chip peripherals include comparators, UART, SPI, I2C, and a parallel master port on related variants.
Typical applications span battery-powered thermostats, handheld medical monitors, electronic shelf labels, utility meters, automotive instrument clusters, and IoT sensor nodes requiring on-device segmented LCD displays. The integrated LCD controller with hardware animation offloads display updates from the CPU, enabling long battery life in display-centric products. Its AEC-Q100 qualification also makes it suitable for body electronics and HMI modules in vehicles.
When designing with this part, pay close attention to the decoupling network: place 100 nF ceramic capacitors as close as possible to each VDD pin and connect all VSS pins to a low-impedance ground plane. The PIC24FJ64GL302 has more than one PGECx/PGEDx pair; any pair may be used for ICSP programming provided both pins of the pair are connected. Forcing unused I/O to a defined state via the pin configuration registers avoids current leakage in sleep mode.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design considerations not found in the manufacturer datasheet alone, helping engineers evaluate second-source options and accelerate design-in for battery-powered LCD applications.
Drop-in alternatives for PIC24FJ64GL302T-I/SO — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC24FJ64GL302T-I/SO (same form factor and footprint) — differing in Package, Core, Operating Temperature, Timers, LCD Charge Pump.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ128GL302T-I/SO
✅ Drop-In✓ In Stock
$1.52 / Unit
View Datasheet →PIC24FJ64GA002T-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ64GB002-I/SO
✅ Drop-In✓ In Stock
$4.85 / Unit
View Datasheet →PIC24FJ64GL302T-I/SO Maximum Ratings & Electrical Characteristics
| Core | PIC24F (16-bit) |
| CPU Speed | 32 MHz (16 MIPS) |
| Program Memory | 64 KB Flash with ECC |
| RAM | 8 KB |
| Package | 28-pin SOIC (SO) |
| Operating Voltage | 2.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (Industrial) |
| ADC | 12-bit |
| DAC | 10-bit |
| LCD Controller | Up to 256 segments (8 commons x 32 segments) |
| LCD Charge Pump | Integrated |
| Sleep Current | Sub-uA range (nanoWatt XLP) |
| Peripherals | WDT, LCD, PWM, UART, SPI, I2C |
| Automotive Qualification | AEC-Q100 |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC24FJ64GL302T-I/SO Pin Configuration
| Pin 1 | SDA/RG15 — I2C data / port pin |
| Pin 2 | RP10/RG14 — Remappable peripheral / port pin |
| Pin 3 | RP17/RG13 — Remappable peripheral / port pin |
| Pin 4 | VSS — Ground |
| Pin 5 | VDD — Positive supply voltage |
| Pin 6 | RP16/RB15 — Remappable peripheral / port pin |
| Pin 7 | RP5/RB14 — Remappable peripheral / port pin |
| Pin 8 | RP7/RB13 — Remappable peripheral / port pin |
| Pin 9 | RP8/RB12 — Remappable peripheral / port pin |
| Pin 10 | SCL/RB11 — I2C clock / port pin |
| Pin 11 | RP9/RB10 — Remappable peripheral / port pin |
| Pin 12 | RB9 — Port pin |
| Pin 13 | RB8 — Port pin |
| Pin 14 | VCAP — Core voltage regulator output - decouple to VSS with 10uF |
| Pin 15 | OSCI/RA3 — Crystal oscillator input / port pin |
| Pin 16 | OSCO/RA2 — Crystal oscillator output / port pin |
| Pin 17 | PGED2/RP0/RB0 — ICSP data / remappable peripheral / port pin |
| Pin 18 | PGEC2/RP1/RB1 — ICSP clock / remappable peripheral / port pin |
| Pin 19 | RP2/RB2 — Remappable peripheral / port pin |
| Pin 20 | RP3/RB3 — Remappable peripheral / port pin |
| Pin 21 | RP4/RB4 — Remappable peripheral / port pin |
| Pin 22 | RB5 — Port pin |
| Pin 23 | VSS — Ground |
| Pin 24 | VDD — Positive supply voltage |
| Pin 25 | COM0/RA0 — LCD common 0 / port pin |
| Pin 26 | COM1/RA1 — LCD common 1 / port pin |
| Pin 27 | COM2/RA4 — LCD common 2 / port pin |
| Pin 28 | COM3/RA5 — LCD common 3 / port pin |
Typical Applications
PIC24FJ64GL302T-I/SO is suitable for 6 applications: Battery-Powered Thermostat with LCD, Electronic Shelf Label (ESL) Wireless Display, Handheld Medical Monitor with Display, Utility Meter with LCD Readout, Automotive Instrument Cluster Display, Industrial IoT Sensor Node with Display.
Battery-Powered Thermostat with LCD
The PIC24FJ64GL302T-I/SO is ideally suited for battery-powered thermostats because its integrated LCD controller with charge pump drives 256 segments without external boost components, while nanoWatt XLP sleep currents in the low hundreds of nA enable multi-year battery life. The Core Independent Peripheral (CIP) LCD animation engine refreshes the display autonomously, allowing the CPU to remain asleep between user button presses. Its 64 KB ECC Flash is sufficient for HVAC scheduling, RTCC, and BLE-friendly firmware, while the 12-bit ADC reads temperature sensors with 0.1C resolution. AEC-Q100 qualification supports both residential and light-commercial thermostat designs requiring long-term reliability.
Recommended
Electronic Shelf Label (ESL) Wireless Display
The PIC24FJ64GL302T-I/SO is a strong fit for electronic shelf labels because its segmented LCD controller directly drives paper-like LCDs at ultra-low power, paired with sub-uA sleep current that supports 5-10 year battery life on a coin cell. Hardware LCD animation (blinking, alternating dual display) offloads display updates from the CPU, reducing average power further. The integrated charge pump eliminates the external boost inductor typical of competing ESL designs, shrinking BOM. With 64 KB Flash and 8 KB RAM, it accommodates sub-GHz or BLE radio stack plus display scheduling logic for retail IoT deployments at scale.
Recommended
Handheld Medical Monitor with Display
The PIC24FJ64GL302T-I/SO fits handheld medical monitors that need a segmented LCD for patient readouts, low power for AA-battery operation, and reliable 16-bit computation for sensor fusion. The nanoWatt XLP technology allows the device to retain RTCC and RAM in deep sleep while consuming only hundreds of nA, extending battery life across clinical shifts. The integrated 12-bit ADC acquires pulse oximetry or temperature signals with low noise, while the LCD controller renders measurement values without burdening the CPU. AEC-Q100 testing provides the long-term reliability required for IEC 60601-aligned medical devices.
Recommended
Utility Meter with LCD Readout
The PIC24FJ64GL302T-I/SO is widely deployed in water, gas, and electricity meters where its integrated LCD controller, charge pump, and nanoWatt XLP sleep enable 10-15 year battery life without external display drivers. The 32 MHz PIC24F core processes metering algorithms with 16-bit precision, while the 12-bit ADC captures sensor data and the RTCC keeps accurate time across temperature variations. The Core Independent Peripheral LCD animation engine continues to refresh the display even with the CPU fully asleep, reducing average current draw dramatically for AMR (Automatic Meter Reading) infrastructure.
Recommended
Automotive Instrument Cluster Display
The PIC24FJ64GL302T-I/SO suits automotive instrument cluster sub-displays where AEC-Q100 qualification, integrated LCD driving, and 16-bit performance are required. The hardware charge pump drives the segmented LCD at temperatures down to -40C without external components, while the RTCC keeps dashboard clock timing accurate. The 32 MHz core handles CAN bus message decoding and warning indicator logic in real time. Compared to discrete LCD driver + microcontroller solutions, the GL302 reduces PCB area and BOM cost for body electronics, HVAC control panels, and rear-seat entertainment HMI modules.
Recommended
Industrial IoT Sensor Node with Display
The PIC24FJ64GL302T-I/SO supports industrial IoT sensor nodes that combine local segmented LCD readouts with periodic wireless telemetry. Its nanoWatt XLP sleep current enables solar or battery harvesting operation, while CIPs handle sensor sampling and LCD animation without waking the CPU. The 12-bit ADC and 10-bit DAC interface with analog industrial sensors (4-20 mA loops, RTDs, bridges), and the 64 KB Flash accommodates MQTT-SN or proprietary wireless stacks. Integrated charge pump eliminates external boost components, shrinking PCB for DIN-rail or panel-mount sensor enclosures.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ64GL302T-I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ128GL302T-I/SO | PIC24FJ64GL302T-I/SS | PIC24FJ64GL302-E/SS | PIC24FJ64GA002T-I/SO | PIC24FJ64GB002-I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC | 28-SOIC - same | 28-SSOP - different footprint | 28-SSOP - different footprint | 28-SOIC - same | 28-SOIC - same |
| Flash Memory | 64 KB | 128 KB (+100%) | 64 KB (same) | 64 KB (same) | 64 KB (same) | 64 KB (same) |
| RAM | 8 KB | 16 KB (+100%) | 8 KB (same) | 8 KB (same) | 8 KB (same) | 8 KB (same) |
| LCD Controller | Yes (256 segments) | Yes (256 segments) | Yes (256 segments) | Yes (256 segments) | No (general-purpose) | No (USB instead) |
| nanoWatt XLP Sleep | Yes (sub-uA) | Yes (sub-uA) | Yes (sub-uA) | Yes (sub-uA) | Partial (older XLP) | Partial (older XLP) |
| USB | No | No | No | No | No | Yes (USB 2.0 FS) |
| AEC-Q100 Qualified | Yes | Yes | Yes | Yes (extended temp -40C to +125C) | No | No |
Key Differentiators
- Integrated segmented LCD controller with hardware charge pump (vs PIC24FJ64GA002T-I/SO)
- True drop-in 28-SOIC upgrade path with double memory (vs PIC24FJ128GL302T-I/SO)
- AEC-Q100 qualification with extended temperature GL302-E variant (vs PIC24FJ64GB002-I/SO)
Design Notes
Place 100 nF decoupling capacitors as close as possible to each VDD pin (the 28-SOIC has two VDD pins at positions 5 and 24). Connect all VSS pins (positions 4 and 23) to a low-impedance ground plane; do not leave any VSS floating or programming may fail per the datasheet. The VCAP pin at position 14 requires a 10 uF ceramic decoupling capacitor tied to VSS for the internal 1.8V core voltage regulator.
The PIC24FJ64GL302 has more than one PGECx/PGEDx pair available for ICSP programming. Any pair may be used, but both pins of the chosen pair must be connected to the programmer; mixing pins from different pairs fails programming. For sleep-mode reliability, configure unused I/O pins via the CNPU/CNPD registers to a defined state to prevent floating-input current leakage that can elevate nanoWatt XLP sleep current by orders of magnitude.
Estimated: at 32 MHz active CPU with LCD off, core draws approximately 8 mA from 3.3 V. In deep sleep with RTC and LCD retention enabled, nanoWatt XLP current drops to a few hundred nA. For a thermostat running 1% duty cycle, average current is dominated by sleep current. Pair the device with a low-quiescent LDO like the MCP1700 to avoid wasting the XLP advantage in the power supply. The integrated LCD charge pump generates up to 3x VDD for LCD contrast; reserve 50 mA peak headroom in the supply.
Compliance Information
AEC-Q100 qualified per Microchip product page and DigiKey automotive qualifier. RoHS compliant. Halogen-free status not explicitly confirmed in verified data - flagged as unknown.
