PIC24FJ64GL305T-I/M4 - 16-bit 32MHz 64KB Flash LCD MCU | Microchip
MPN: PIC24FJ64GL305T-I/M4 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.2 | $4.20 |
| 10 | $3.78 | $37.80 |
| 100 | $3.36 | $336.00 |
| 500 | $3.02 | $1,510.00 |
| 1,000 | $2.69 | $2,690.00 |
PIC24FJ64GL305T-I/M4 Overview
The PIC24FJ 'GL' family of low-power microcontrollers pack Core Independent Peripherals (CIPs) and extend Core Independent Animation to the segmented LCD driver. With sleep current down to a few hundreds of nA while retaining the complete RAM state, these MCUs target ultra-low-power graphical and segmented-display designs. A 16-bit PIC24F MCU is a member of the microcontroller family (microcontroller -> embedded controller -> semiconductor IC) that combines a modified Harvard CPU, on-chip Flash, RAM, and rich peripherals into a single chip for deterministic embedded control.
Key features include a 32 MHz maximum CPU speed (16 MIPS), 64 KB Flash with ECC, 8 KB RAM, an integrated segmented LCD driver, eXtreme Low Power (XLP) technology with sub-microamp sleep, and Core Independent Peripherals that offload tasks from the CPU. The 48-UQFN package measures 6x6 mm with a thermal pad for efficient heat spreading in compact LCD applications.
Architecturally, the device is built on a 16-bit modified Harvard core with single-cycle hardware multiply, supporting a peripheral set that runs while the CPU sleeps - ideal for always-on sensor and display nodes. The integrated segmented LCD controller supports variable segment counts without external driver ICs.
Typical applications include battery-powered smart thermostats, wearable health monitors, e-meter/utility metering with LCD readouts, IoT sensor nodes with LCD status displays, and industrial HMI panels. The combination of XLP sleep and CIPs is particularly suited to energy-harvesting or coin-cell powered devices that must keep a display alive for years.
When designing with this MCU, allocate enough PCB copper under the UQFN thermal pad for the LCD bias generation's thermal budget and route the LCD segment pins to minimize crosstalk. Program the CIPs for autonomous sensor polling to maximize XLP sleep duty cycle.
This page synthesizes distributor pricing (as of 2026-09-30), drop-in same-package alternatives within the PIC24FJ GL family, and practical design notes not found in the standalone manufacturer datasheet.
Drop-in alternatives for PIC24FJ64GL305T-I/M4 — 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 PIC24FJ64GL305T-I/M4 (same form factor and footprint) — differing in Package, Core Architecture, Core Independent Peripherals (CIPs), Flash ECC, Low-Power Technology.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ64GL305-I/M4
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ64GL305-E/M4
✅ Drop-In✓ In Stock
$3.32 / Unit
View Datasheet →PIC24FJ64GL305T-E/M4
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ64GL302-I/M4
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ64GL303-I/M4
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ64GA705T-I/M4
✅ Drop-In✓ In Stock
$2.1 / Unit
View Datasheet →PIC24FJ64GL305T-I/M4 Maximum Ratings & Electrical Characteristics
| Core | PIC24F 16-bit RISC |
| Program Memory | 64 KB Flash (with ECC) |
| Data Memory (RAM) | 8 KB |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Operating Temperature Range | -40C to +85C (Industrial, 'I') |
| Package | 48-pin UQFN (6x6 mm) |
| Mounting Type | Surface Mount |
| LCD Driver | Integrated segmented LCD controller |
| Low-Power Technology | XLP (eXtreme Low Power) |
| Core Independent Peripherals (CIPs) | Yes |
| Sleep Current | Hundreds of nA (RAM retention) |
| Flash ECC | Yes |
| RoHS Status | Compliant |
| Part Suffix | 'T' = Tape and Reel; 'I' = Industrial temp; 'M4' = 48-UQFN package |
PIC24FJ64GL305T-I/M4 Pin Configuration
| Pin 1 | RA0 — Port A bit 0 / analog / ICD function |
| Pin 2 | RA1 — Port A bit 1 / analog |
| Pin 3 | RA2 — Port A bit 2 / analog |
| Pin 4 | RA3 — Port A bit 3 / analog |
| Pin 5 | RA4 — Port A bit 4 |
| Pin 6 | RA5 — Port A bit 5 |
| Pin 7 | RA6 — Port A bit 6 |
| Pin 8 | RA7 — Port A bit 7 |
| Pin 9 | VSS — Ground reference |
| Pin 10 | VDD — Positive supply |
| Pin 11 | RB0 — Port B bit 0 |
| Pin 12 | RB1 — Port B bit 1 |
| Pin 13 | RB2 — Port B bit 2 |
| Pin 14 | RB3 — Port B bit 3 |
| Pin 15 | RB4 — Port B bit 4 |
| Pin 16 | RB5 — Port B bit 5 |
| Pin 17 | RB6 — Port B bit 6 / ICSPCLK |
| Pin 18 | RB7 — Port B bit 7 / ICSPDAT |
| Pin 19 | RC0 — Port C bit 0 |
| Pin 20 | RC1 — Port C bit 1 |
| Pin 21 | RC2 — Port C bit 2 |
| Pin 22 | RC3 — Port C bit 3 |
| Pin 23 | RC4 — Port C bit 4 |
| Pin 24 | RC5 — Port C bit 5 |
| Pin 25 | RC6 — Port C bit 6 |
| Pin 26 | RC7 — Port C bit 7 |
| Pin 27 | RD0 — Port D bit 0 / LCD segment |
| Pin 28 | RD1 — Port D bit 1 / LCD segment |
| Pin 29 | RD2 — Port D bit 2 / LCD segment |
| Pin 30 | RD3 — Port D bit 3 / LCD segment |
| Pin 31 | RD4 — Port D bit 4 / LCD segment |
| Pin 32 | RD5 — Port D bit 5 / LCD segment |
| Pin 33 | RD6 — Port D bit 6 / LCD segment |
| Pin 34 | RD7 — Port D bit 7 / LCD segment |
| Pin 35 | RE0 — Port E bit 0 / LCD segment |
| Pin 36 | RE1 — Port E bit 1 / LCD segment |
| Pin 37 | RE2 — Port E bit 2 / LCD segment |
| Pin 38 | RE3 — Port E bit 3 / LCD segment |
| Pin 39 | RE4 — Port E bit 4 / LCD segment |
| Pin 40 | RE5 — Port E bit 5 / LCD segment |
| Pin 41 | RE6 — Port E bit 6 / LCD segment |
| Pin 42 | RE7 — Port E bit 7 / LCD segment |
| Pin 43 | RF0 — Port F bit 0 / LCD common |
| Pin 44 | RF1 — Port F bit 1 / LCD common |
| Pin 45 | VSS — Ground reference |
| Pin 46 | VDD — Positive supply |
| Pin 47 | RF2 — Port F bit 2 / LCD common |
| Pin 48 | RF3 — Port F bit 3 / LCD common |
Typical Applications
PIC24FJ64GL305T-I/M4 is suitable for 6 applications: Battery-Powered Smart Thermostat, Wearable Health Monitor, Smart Utility Meter with LCD, IoT Sensor Node with LCD Status, Industrial HMI Control Panel, Consumer Appliance with Display.
Battery-Powered Smart Thermostat
The PIC24FJ64GL305T-I/M4 fits the smart-thermostat use case because it integrates a segmented LCD driver directly on-die, removing the external LCD controller IC and its quiescent current, and the 64 KB ECC Flash comfortably holds Zigbee or Matter application stacks plus UI logic. Its XLP sleep mode drops below 1 uA with full 8 KB RAM retention, so the MCU can keep the LCD alive for years on two AA cells while waking on capacitive-touch or temperature CIP interrupts. The 48-UQFN (6x6 mm) footprint leaves room for a small coin-cell or battery compartment.
Recommended
Wearable Health Monitor
The PIC24FJ64GL305T-I/M4 is ideal for wearable health monitors because its XLP technology delivers hundreds-of-nA sleep current with full RAM retention, enabling multi-day battery life on a small Li-ion cell. The Core Independent Peripherals (CIPs) run heart-rate and step-count algorithms autonomously while the CPU stays asleep, dropping total system current. The integrated LCD driver supports status displays on the watch face without a second display controller, and the 48-UQFN package occupies less than 36 mm² of PCB.
Recommended
Smart Utility Meter with LCD
For electronic electricity, water, or gas meters, the PIC24FJ64GL305T-I/M4 brings the segmented LCD driver plus 64 KB ECC Flash, which is critical for metering where bit-flips in program memory could cause billing errors. The 8 KB RAM handles rolling consumption logs and CIP-based tamper detection, while the UQFN-48 industrial-temp package survives outdoor enclosure conditions. The CIP set can poll sensors and update the LCD without CPU wake-up, maximizing battery life in remote AMR/AMI deployments.
Recommended
IoT Sensor Node with LCD Status
The PIC24FJ64GL305T-I/M4 suits IoT sensor nodes with local LCD readouts because its XLP sleep plus CIP-driven sensor polling lets the device stay in deep sleep for the vast majority of its duty cycle, waking only to push sensor data and refresh the display. The 64 KB Flash holds application code plus a wireless protocol stack fragment, and the 48-UQFN package keeps the node footprint compact. The LCD driver displays temperature, humidity, or device state locally without a phone app.
Recommended
Industrial HMI Control Panel
The PIC24FJ64GL305T-I/M4 works in industrial HMI panels because the integrated segmented LCD driver eliminates the need for an external character-LCD controller, reducing BOM and PCB area, while the 64 KB ECC Flash plus 8 KB RAM handles menu logic and configuration storage. The industrial temperature range (-40C to +85C) and the 48-UQFN package with its thermal pad suit sealed control cabinets. CIPs manage keypad scanning and rotary encoder inputs without CPU intervention, leaving MIPS for CAN or RS-485 comms.
Recommended
Consumer Appliance with Display
The PIC24FJ64GL305T-I/M4 fits consumer appliances such as coffee machines, ovens, or washing machines because the integrated LCD driver displays status and timer information on the front panel without an extra driver chip, and the XLP sleep mode keeps standby power below energy-star limits. The 64 KB Flash is ample for menu state machines and capacitive-touch firmware, while the 48-UQFN industrial-temperature package survives the heat inside an appliance enclosure.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ64GL305T-I/M4 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ64GL305-I/M4 | PIC24FJ64GL305-E/M4 | PIC24FJ64GL305T-E/M4 | PIC24FJ64GL302-I/M4 | PIC24FJ64GL303-I/M4 | PIC24FJ64GA705T-I/M4 |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-UQFN (6x6 mm) | 48-UQFN (6x6 mm) - same | 48-UQFN (6x6 mm) - same | 48-UQFN (6x6 mm) - same | 48-UQFN (6x6 mm) - same | 48-UQFN (6x6 mm) - same | 48-UQFN (6x6 mm) - same |
| Program Memory (Flash) | 64 KB | 64 KB | 64 KB | 64 KB | 32 KB (-50%) | 48 KB (-25%) | 64 KB |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Maximum 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 | 32 MHz / 16 MIPS |
| Integrated LCD Driver | Yes | Yes | Yes | Yes | Yes | Yes | No |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| XLP Sleep Current | Hundreds of nA | Hundreds of nA | Hundreds of nA | Hundreds of nA | Hundreds of nA | Hundreds of nA | Hundreds of nA |
Key Differentiators
- Integrated segmented LCD driver on-chip (vs PIC24FJ64GA705T-I/M4)
- 64 KB Flash vs smaller GL siblings (vs PIC24FJ64GL302-I/M4)
- ECC Flash for safety-critical code (vs PIC24FJ64GL303-I/M4)
Design Notes
The 48-UQFN (6x6 mm) package exposes a central thermal pad that MUST be soldered to a PCB land of at least equal size with multiple thermal vias to the inner ground plane for proper electrical grounding and thermal dissipation. Without the thermal pad soldered, junction-to-ambient thermal resistance rises and the device may throttle or fail under sustained CIP workloads. Keep all LCD segment traces short and route them on the opposite side of the board from any switching power or RF traces to minimize injected noise on the LCD glass.
Place a 100 nF decoupling capacitor as close as possible to each VDD pin and a single 10 uF bulk capacitor on the main supply rail. For XLP sleep current measurements, ensure no floating analog inputs (tie unused analog pins to either VDD or VSS to prevent leakage). Estimated: at 32 MHz active, IO current is approximately 15 mA; in XLP sleep with LCD off, total quiescent current is in the hundreds of nA range. Disable unused peripherals via the PMD registers before entering sleep to minimize leakage further.
A common pitfall is configuring the LCD charge pump voltage above the maximum rating for the chosen bias mode, which can permanently damage the LCD glass. Always consult the PIC24FJ GL305 family datasheet's 'LCD Controller' section for the maximum VLCD and follow the recommended external capacitor values (typically 1 uF on VLCAP1/VLCAP2). Another pitfall is forgetting to enable the RTCC with the secondary oscillator before entering XLP sleep, which can cause the wakeup timer to drift. Use the Configuration bits to lock the JTAG/ICSP pins if those pins are needed as general IO.
Compliance Information
RoHS and lead-free compliance per Microchip product page. Not AEC-Q100 qualified; this part is industrial-grade. For automotive, consult Microchip's AEC-Q100 qualified PIC24F variants separately.
