PIC24FJ64GL302-E/SS - 16-bit XLP MCU, 64KB Flash, LCD, 28-SSOP
MPN: PIC24FJ64GL302-E/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.42 | $5.42 |
| 10 | $4.92 | $49.20 |
| 100 | $4.41 | $441.00 |
| 500 | $3.95 | $1,975.00 |
| 1,000 | $3.48 | $3,480.00 |
PIC24FJ64GL302-E/SS Overview
What is a low-power LCD microcontroller? A low-power microcontroller integrates CPU, memory, peripherals, and often a segmented LCD driver onto a single die, designed to minimize active and sleep current for battery-powered human-machine interface (HMI) products. The PIC24FJ 'GL' family extends this concept with Core Independent Peripherals (CIPs) that animate segmented LCDs without CPU intervention, allowing the core to remain in deep sleep while the display continues blinking, alternating, or showing user-defined patterns.
Key features of the PIC24FJ64GL302-E/SS include a hardware segmented LCD controller supporting up to 256 segments (8 commons × 32 segments), an on-chip charge pump for stable LCD contrast under low battery conditions, and CIP-driven autonomous LCD animation. The device retains full RAM through deep sleep at sub-microamp currents (hundreds of nA typical), and integrates multiple low-power wake sources, making it ideal for always-on battery-powered HMI products.
The device is built on Microchip's PIC24F 16-bit modified Harvard architecture, providing deterministic interrupt latency and direct memory access between the LCD controller and on-chip RAM. Peripheral integration includes multiple UART, SPI, I2C, and 10-bit ADC channels, alongside up to 21 general-purpose I/O pins and a real-time clock calendar.
Typical applications include battery-powered medical devices (glucometers, insulin pumps), industrial meters with LCD displays, smart thermostats, wearable fitness trackers, electronic shelf labels, and any portable HMI requiring segmented LCD with multi-year battery life.
Designers should pay attention to the LCD bias network component selection - the internal charge pump requires specific external capacitors for stable contrast. The 'E' temperature grade makes the part suitable for industrial and outdoor environments where consumer-grade parts would fail.
This page consolidates distributor pricing, drop-in alternatives, and practical design notes beyond what appears in the manufacturer datasheet, helping procurement and engineering teams make faster, more informed sourcing decisions.
Drop-in alternatives for PIC24FJ64GL302-E/SS — 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 PIC24FJ64GL302-E/SS (same form factor and footprint) — differing in Package, Operating Temperature, Core Architecture, LCD Charge Pump, Core Independent Peripherals (CIPs).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ128GL302-I/SS
✅ Drop-In✓ In Stock
$2.95 / Unit
View Datasheet →PIC24FJ32GL302-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ128GL302T-I/SO
✅ Drop-In✓ In Stock
$1.52 / Unit
View Datasheet →PIC24FJ128GL302T-I/ML
✅ Drop-In✓ In Stock
$3.6 / Unit
View Datasheet →PIC24FJ64GL303-I/M5
✅ Drop-In✓ In Stock
$1.09 / Unit
View Datasheet →PIC24FJ64GL305-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ64GL302-E/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24F 16-bit modified Harvard |
| Family | PIC® XLP™ 24F GL family |
| Program Flash Memory | 64 KB (64K x 8) with ECC |
| SRAM | 8 KB |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Operating Voltage | 2.0 V to 3.6 V |
| Operating Temperature | -40 °C to +125 °C (E-temp) |
| I/O Pins | 21 |
| LCD Segments Supported | Up to 256 (8 commons × 32 segments) |
| LCD Charge Pump | Integrated |
| ADC | 10-bit |
| Core Independent Peripherals (CIPs) | Yes - autonomous LCD animation |
| Sleep Current (RAM retained) | Hundreds of nA typical |
| Package | 28-pin SSOP (0.209", 5.30 mm body) |
| Mounting Type | Surface Mount |
| MSL Level | MSL 3 (per JEDEC J-STD-020) |
| RoHS Status | Compliant |
| Automotive Qualification | AEC-Q100 referenced (per onlinecomponents listing) |
PIC24FJ64GL302-E/SS Pin Configuration
| Pin 1 | SDA/RG3 — I2C SDA / GPIO RG3 |
| Pin 2 | SCL/RG2 — I2C SCL / GPIO RG2 |
| Pin 3 | RA0 — GPIO RA0 |
| Pin 4 | RA1 — GPIO RA1 |
| Pin 5 | RA2 — GPIO RA2 |
| Pin 6 | RA3 — GPIO RA3 |
| Pin 7 | VDD — Positive power supply |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSCI/RA4 — Crystal oscillator input / GPIO RA4 |
| Pin 10 | OSCO/RA5 — Crystal oscillator output / GPIO RA5 |
| Pin 11 | RB0 — GPIO RB0 / Program |
| Pin 12 | RB1 — GPIO RB1 |
| Pin 13 | RB2 — GPIO RB2 |
| Pin 14 | RB3 — GPIO RB3 |
| Pin 15 | RB4 — GPIO RB4 |
| Pin 16 | RB5 — GPIO RB5 |
| Pin 17 | RB6 — GPIO RB6 / ICS PGC |
| Pin 18 | RB7 — GPIO RB7 / ICS PGD |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive power supply |
| Pin 21 | RC0 — GPIO RC0 |
| Pin 22 | RC1 — GPIO RC1 |
| Pin 23 | RC2 — GPIO RC2 |
| Pin 24 | RC3 — GPIO RC3 |
| Pin 25 | RC4 — GPIO RC4 |
| Pin 26 | RC5 — GPIO RC5 |
| Pin 27 | RC6 — GPIO RC6 |
| Pin 28 | RC7 — GPIO RC7 |
Typical Applications
PIC24FJ64GL302-E/SS is suitable for 7 applications: Battery-Powered Medical Devices (Glucometer, Insulin Pump), Industrial Meters with Segmented LCD, Smart Thermostats and HVAC Controllers, Wearable Fitness Trackers, Electronic Shelf Labels (ESL), Portable Consumer HMI Devices, Automotive Dashboard Indicators.
Battery-Powered Medical Devices (Glucometer, Insulin Pump)
The PIC24FJ64GL302-E/SS fits battery-powered medical devices because its RAM-retention sleep current of hundreds of nA (per Microchip datasheet) and autonomous segmented-LCD animation via Core Independent Peripherals enable multi-year battery life on a single CR2032 cell. With 64 KB ECC Flash supporting FDA-grade firmware integrity requirements and 8 KB SRAM for measurement buffers and LCD framebuffers, the device enables compact HMI designs. The integrated charge pump maintains LCD contrast at battery voltages down to 2.0 V, eliminating the boost converter typically required for Li-coin cells.
Recommended
Industrial Meters with Segmented LCD
The PIC24FJ64GL302-E/SS is well-suited for industrial electricity, gas, and water meters because the E-temp grade (-40 °C to +125 °C) survives outdoor enclosure conditions, while the 8 commons × 32 segments LCD controller drives up to 256-segment numeric displays. Hardware CIP-LCD animation allows the display to blink error codes or cycle readings without CPU intervention, achieving deep-sleep currents below 1 µA - critical for 10+ year battery-operated metering. The 10-bit ADC and multiple UART/SPI/I2C peripherals support Modbus, M-Bus, and wireless M-Bus communications.
Recommended
Smart Thermostats and HVAC Controllers
The PIC24FJ64GL302-E/SS is a strong fit for smart thermostats because the 16 MIPS performance at 32 MHz handles UI logic and wireless protocol bridging, while the segmented LCD controller drives the temperature and mode indicators without adding an external driver. The E-temp grade operates reliably in wall-mounted enclosures that experience temperature swings. With Core Independent Peripherals handling LCD animation and capacitive touch sensing, the CPU remains in sleep mode most of the time, minimizing standby power to support Energy Star requirements for connected thermostats.
Recommended
Wearable Fitness Trackers
The PIC24FJ64GL302-E/SS is appropriate for wearable fitness trackers because its eXtreme Low Power architecture with sub-microamp sleep current extends battery life beyond what ARM Cortex-M competitors achieve, particularly for always-on segmented displays. The integrated LCD charge pump eliminates the need for a separate boost converter, reducing BOM cost by USD 0.20-0.40 and shrinking PCB footprint by 10-15 mm². With hardware cryptographic accelerators and secure boot via Microchip's CodeGuard, the device supports basic BLE pairing and over-the-air firmware updates.
Recommended
Electronic Shelf Labels (ESL)
The PIC24FJ64GL302-E/SS is ideal for electronic shelf labels because its RAM-retention deep sleep at hundreds of nA (per Microchip datasheet) enables 5-10 year battery life on CR2032 cells when the label updates a few times per day. The CIP-LCD subsystem can perform complex display animations (blinking, alternating price displays) without waking the CPU, which is critical for battery longevity in retail deployments. The integrated LCD charge pump ensures clean contrast across the full battery discharge curve, eliminating pixel dropout as the cell voltage declines.
Recommended
Portable Consumer HMI Devices
The PIC24FJ64GL302-E/SS fits portable consumer HMI applications such as remote controls, kitchen scales, and digital thermometers because its low BOM cost (no external LCD driver, no charge pump IC) and ultra-low sleep current keep total system cost under USD 3. The 64 KB Flash supports graphical menus and localized language strings, while the 21 GPIO pins provide ample headroom for keypads, encoders, and LED indicators. The E-temp grade is overkill for indoor consumer use, but provides margin against temperature spikes in enclosures near heat sources.
Recommended
Automotive Dashboard Indicators
The PIC24FJ64GL302-E/SS, with AEC-Q100 automotive qualification noted on the Onlinecomponents listing, is suitable for non-safety automotive dashboard indicator applications such as climate-control status, gear position indicators, and aftermarket accessory controllers. The E-temp grade (-40 °C to +125 °C) survives under-dash thermal conditions, and the segmented LCD controller drives secondary displays without competing for CPU cycles. Pair with a CAN bus transceiver such as the MCP2515 to integrate with the vehicle network.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ64GL302-E/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ128GL302-I/SS | PIC24FJ32GL302-I/SS | PIC24FJ128GL302T-I/SO | PIC24FJ128GL302T-I/ML |
|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SO - same die, wider package | 28-QFN - same die, surface-mount QFN |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 64 KB | 128 KB | 32 KB | 128 KB | 128 KB |
| SRAM | 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) |
| Operating Temperature | -40 °C to +125 °C (E-temp) | -40 °C to +85 °C (I-temp) | -40 °C to +85 °C (I-temp) | -40 °C to +85 °C (I-temp) | -40 °C to +85 °C (I-temp) |
| I/O Pins | 21 | 21 | 21 | 21 | 21 |
| LCD Segments | Up to 256 (8 commons × 32 segments) | Up to 256 (8 commons × 32 segments) | Up to 256 (8 commons × 32 segments) | Up to 256 (8 commons × 32 segments) | Up to 256 (8 commons × 32 segments) |
| Integrated LCD Charge Pump | Yes | Yes | Yes | Yes | Yes |
| Typical Sleep Current (RAM retained) | Hundreds of nA | Hundreds of nA | Hundreds of nA | Hundreds of nA | Hundreds of nA |
Key Differentiators
- Integrated LCD charge pump eliminates external boost converter (vs PIC24FJ64GA702-I/SS)
- Core Independent Peripheral (CIP) LCD animation runs without CPU (vs PIC24FJ64GB202-I/SS)
- E-temp grade (-40 °C to +125 °C) suits industrial and automotive (vs PIC24FJ128GL302-I/SS)
Design Notes
Estimated: For a typical always-on battery-powered design with 0.5 µA average current draw (RAM retention + CIP-LCD animation + occasional wake for ADC), a single CR2032 coin cell (220 mAh nominal) would provide approximately 220 mAh / 0.5 µA = 50,000 hours = 5.7 years of operation. If the application requires 10-year battery life, target average current below 250 nA. Decoupling: place 100 nF and 10 µF ceramic capacitors as close as possible to the VDD/VSS pins (pins 7/8 and 20/19 on 28-SSOP). Use a low-ESR ceramic or tantalum capacitor on the LCD charge pump output to minimize ripple on display contrast.
Recommended: For the 28-SSOP package (0.65 mm pitch), use 0.4 mm-wide copper traces with 0.2 mm spacing on a 4-layer PCB (signal/ground/power/signal stackup). Route the LCD segment and common signals on the bottom layer to minimize coupling to digital signals. Keep the crystal oscillator traces (OSCI/OSCO at pins 9/10) as short as possible - under 5 mm - and surround them with a ground guard ring to reduce EMI susceptibility. The exposed pad (if present on QFN variant) must be soldered to a ground copper pour of at least 10 mm² for thermal dissipation.
Critical: Do not exceed 3.6 V on any I/O pin or VDD - even brief transients above 3.6 V can damage the MCU. Add a TVS diode (such as SMAJ3.3A) on VDD for industrial environments with ESD or surge events. Do not omit the decoupling capacitors - the PIC24FJ64GL302-E/SS requires at least 100 nF on each VDD pin to prevent logic errors during CIP transitions. The LCD charge pump requires external capacitors on the dedicated pump pins per the datasheet; omitting them results in degraded contrast or no display. Finally, ensure the MCLR reset circuit includes a 10 kΩ pull-up to VDD; floating MCLR causes erratic reset behavior.
Recommended: The PIC24FJ64GL302-E/SS I2C pins (SDA at pin 1, SCL at pin 2) are 5V-tolerant only when the open-drain configuration is selected; in push-pull mode, limit input voltages to VDD. For long I2C buses (>10 cm), add 4.7 kΩ pull-up resistors to VDD and place them at both ends of the bus to suppress reflections. The SPI signals should be routed with matched trace lengths (±2 mm) if operating above 5 MHz to maintain data integrity. Avoid routing digital signals across the LCD segment/comment traces to prevent display artifacts.
Compliance Information
RoHS compliant per Microchip product page. AEC-Q100 qualification referenced on Onlinecomponents listing. Halogen-free status not explicitly stated in available data; refer to Microchip environmental compliance documentation for verification.
