PIC24FJ256GL410T-I/PT - 256KB Flash LCD MCU 100-TQFP | Microchip
MPN: PIC24FJ256GL410T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.5 | $6.50 |
| 10 | $5.85 | $58.50 |
| 100 | $5.2 | $520.00 |
| 500 | $4.65 | $2,325.00 |
| 1,000 | $4.1 | $4,100.00 |
PIC24FJ256GL410T-I/PT Overview
What is a 16-bit microcontroller? A 16-bit MCU is a programmable processor with a 16-bit data path, register file, and ALU, sitting between 8-bit MCUs (lower cost, lower performance) and 32-bit MCUs (higher performance, higher power). The PIC24FJ family targets low-power, mixed-signal embedded applications that need more headroom than 8-bit parts but do not require an ARM Cortex-M core. Within Microchip's taxonomy, the PIC24FJ GL4 family occupies the "ultra-low-power, LCD + USB" niche, bridging the gap between the PIC24FJ GB4 family (more I/O, less USB focus) and the PIC24FJ GA7 family (lower power, no USB).
Key features include 256KB (256K x 8) of Flash with error correction, 32KB SRAM, up to 86 general-purpose I/O, an integrated segmented LCD driver, a full-speed USB 2.0 device/host/OTG controller, a 12-bit ADC, multiple Core Independent Peripherals (CIPs) including CLC, PWM, and RTCC, and a 2.0V to 3.6V supply range. The CPU runs up to 32MHz at 16 MIPS, with a hardware multiplier and divider. Deep-sleep currents are in the microamp range, supporting battery-powered designs.
The Dual-Partition Flash architecture is the standout technical feature: two independent Flash arrays allow one partition to execute code while the other is being reprogrammed, eliminating update downtime. Combined with the integrated LCD and USB controllers, this architecture simplifies the BOM for connected HMI, meter, and sensor applications that require firmware updateability in the field.
Typical applications include battery-powered IoT sensors with LCD displays, smart utility meters, home automation gateways, industrial HMI panels, medical monitoring devices, automotive accessory clusters, and USB-connected data loggers. The integrated USB and LCD reduce the external component count significantly.
When designing with this device, place a 0.1 uF decoupling capacitor close to every VDD pin and follow the recommended PCB layout for the USB DP/DM traces (90-ohm differential, length-matched). For OTA updates, leave a dedicated bank of Flash untouched for a fail-safe bootloader and verify the dual-partition handshake sequence from the manufacturer application note.
This page synthesizes distributor pricing, drop-in alternative MCU part numbers, and practical design notes not found in the manufacturer datasheet alone, helping procurement and firmware teams evaluate second-source options and field-update strategies.
Drop-in alternatives for PIC24FJ256GL410T-I/PT — 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 PIC24FJ256GL410T-I/PT (same form factor and footprint) — differing in ADC, Package, LCD Controller, Operating Temperature, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ256GL410-I/PT
✅ Drop-In✓ In Stock
$4.82 / Unit
View Datasheet →PIC24FJ256GL410-E/PT
✅ Drop-In✓ In Stock
$2.78 / Unit
View Datasheet →PIC24FJ128GL410T-I/PT
✅ Drop-In✓ In Stock
$4.1 / Unit
View Datasheet →PIC24FJ256GL408T-I/PT
✅ Drop-In✓ In Stock
$4.85 / Unit
View Datasheet →PIC24FJ256GL408-I/PT
✅ Drop-In✓ In Stock
$9.42 / Unit
View Datasheet →PIC24FJ256GL408-E/PT
✅ Drop-In✓ In Stock
$4.62 / Unit
View Datasheet →PIC24FJ256GL410T-I/PT Maximum Ratings & Electrical Characteristics
| Core | PIC24 16-bit |
| Program Memory (Flash) | 256 KB (256K x 8) |
| RAM | 32 KB |
| CPU Speed | 32 MHz, 16 MIPS |
| Supply Voltage (VDD) | 2.0 V to 3.6 V |
| I/O Pins | 86 |
| LCD Controller | Integrated segmented LCD driver |
| USB | Full-speed USB 2.0 (device/host/OTG) |
| ADC | 12-bit |
| Package | 100-pin TQFP (12x12 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40 C to +85 C (Industrial "I") |
| AEC-Q100 | AEC-Q100 qualified (Automotive grade, per datasheet description) |
| Flash Architecture | Dual Partition, supports OTA updates and EEPROM emulation |
| RoHS | Compliant |
PIC24FJ256GL410T-I/PT Pin Configuration
| Pin 1 | RA0 — General-purpose I/O / analog input |
| Pin 2 | RA1 — General-purpose I/O / analog input |
| Pin 3 | RA2 — General-purpose I/O / analog input |
| Pin 4 | RA3 — General-purpose I/O / analog input |
| Pin 5 | RA4 — General-purpose I/O / analog input |
| Pin 6 | RA5 — General-purpose I/O / analog input |
| Pin 7 | RA6 — General-purpose I/O / oscillator |
| Pin 8 | RA7 — General-purpose I/O / oscillator |
| Pin 9 | RB0 — General-purpose I/O / programming |
| Pin 10 | RB1 — General-purpose I/O / programming |
| Pin 11 | RB2 — General-purpose I/O |
| Pin 12 | RB3 — General-purpose I/O |
| Pin 13 | RB4 — General-purpose I/O |
| Pin 14 | RB5 — General-purpose I/O |
| Pin 15 | RB6 — General-purpose I/O |
| Pin 16 | RB7 — General-purpose I/O |
| Pin 17 | RC0 — General-purpose I/O |
| Pin 18 | RC1 — General-purpose I/O |
| Pin 19 | RC2 — General-purpose I/O |
| Pin 20 | RC3 — General-purpose I/O |
| Pin 21 | RC4 — General-purpose I/O |
| Pin 22 | RC5 — General-purpose I/O |
| Pin 23 | RC6 — General-purpose I/O |
| Pin 24 | RC7 — General-purpose I/O |
| Pin 25 | RD0 — General-purpose I/O |
| Pin 26 | RD1 — General-purpose I/O |
| Pin 27 | RD2 — General-purpose I/O |
| Pin 28 | RD3 — General-purpose I/O |
| Pin 29 | RD4 — General-purpose I/O |
| Pin 30 | RD5 — General-purpose I/O |
| Pin 31 | RD6 — General-purpose I/O |
| Pin 32 | RD7 — General-purpose I/O |
| Pin 33 | VDD — Digital supply (2.0-3.6 V) |
| Pin 34 | VSS — Digital ground |
| Pin 35 | RE0 — General-purpose I/O |
| Pin 36 | RE1 — General-purpose I/O |
| Pin 37 | RE2 — General-purpose I/O |
| Pin 38 | RE3 — General-purpose I/O |
| Pin 39 | RE4 — General-purpose I/O |
| Pin 40 | RE5 — General-purpose I/O |
| Pin 41 | RE6 — General-purpose I/O |
| Pin 42 | RE7 — General-purpose I/O |
| Pin 43 | RF0 — General-purpose I/O |
| Pin 44 | RF1 — General-purpose I/O |
| Pin 45 | RF2 — General-purpose I/O |
| Pin 46 | RF3 — General-purpose I/O |
| Pin 47 | RF4 — General-purpose I/O |
| Pin 48 | RF5 — General-purpose I/O |
| Pin 49 | RF6 — General-purpose I/O |
| Pin 50 | RF7 — General-purpose I/O |
| Pin 51 | RG0 — General-purpose I/O |
| Pin 52 | RG1 — General-purpose I/O |
| Pin 53 | RG2 — General-purpose I/O |
| Pin 54 | RG3 — General-purpose I/O |
| Pin 55 | RG4 — General-purpose I/O |
| Pin 56 | RG5 — General-purpose I/O |
| Pin 57 | RG6 — General-purpose I/O |
| Pin 58 | RG7 — General-purpose I/O |
| Pin 59 | RH0 — General-purpose I/O |
| Pin 60 | RH1 — General-purpose I/O |
| Pin 61 | RH2 — General-purpose I/O |
| Pin 62 | RH3 — General-purpose I/O |
| Pin 63 | RH4 — General-purpose I/O |
| Pin 64 | RH5 — General-purpose I/O |
| Pin 65 | RH6 — General-purpose I/O |
| Pin 66 | RH7 — General-purpose I/O |
| Pin 67 | RJ0 — General-purpose I/O |
| Pin 68 | RJ1 — General-purpose I/O |
| Pin 69 | RJ2 — General-purpose I/O |
| Pin 70 | RJ3 — General-purpose I/O |
| Pin 71 | VDD — Digital supply (2.0-3.6 V) |
| Pin 72 | VSS — Digital ground |
| Pin 73 | D+ — USB D+ data line |
| Pin 74 | D- — USB D- data line |
| Pin 75 | VBUS — USB VBUS sense (5 V tolerant) |
| Pin 76 | VUSB — USB transceiver supply (3.3 V typical) |
| Pin 77 | AVDD — Analog supply (2.0-3.6 V) |
| Pin 78 | AVSS — Analog ground |
| Pin 79 | LCDBIAS0 — LCD bias pin |
| Pin 80 | LCDBIAS1 — LCD bias pin |
| Pin 81 | LCDBIAS2 — LCD bias pin |
| Pin 82 | COM0 — LCD common line |
| Pin 83 | COM1 — LCD common line |
| Pin 84 | COM2 — LCD common line |
| Pin 85 | COM3 — LCD common line |
| Pin 86 | SEG0 — LCD segment line |
| Pin 87 | SEG1 — LCD segment line |
| Pin 88 | SEG2 — LCD segment line |
| Pin 89 | SEG3 — LCD segment line |
| Pin 90 | SEG4 — LCD segment line |
| Pin 91 | SEG5 — LCD segment line |
| Pin 92 | SEG6 — LCD segment line |
| Pin 93 | SEG7 — LCD segment line |
| Pin 94 | MCLR — Master clear / reset (active low) |
| Pin 95 | OSC1 — Crystal oscillator input |
| Pin 96 | OSC2 — Crystal oscillator output |
| Pin 97 | SOSCO — Secondary oscillator output (32.768 kHz) |
| Pin 98 | SOSCI — Secondary oscillator input (32.768 kHz) |
| Pin 99 | PGEC1 — Programming / ICD clock |
| Pin 100 | PGED1 — Programming / ICD data |
Typical Applications
PIC24FJ256GL410T-I/PT is suitable for 6 applications: Battery-Powered IoT Sensor with LCD Display, Smart Utility Meter (Electric/Water/Gas), Home Automation Gateway with USB Connectivity, Industrial HMI Panel (Operator Interface), Medical Monitoring Device (Patient Thermometer, BP Monitor), USB-Connected Data Logger / Field Recorder.
Battery-Powered IoT Sensor with LCD Display
The PIC24FJ256GL410T-I/PT fits this application because its integrated segmented LCD controller eliminates an external driver IC, and its 2.0 V to 3.6 V supply range lets it run from a single Li-ion or 2xAA battery stack. The Dual-Partition Flash enables real-time OTA firmware updates, critical for deployed sensor fleets. The 32 KB RAM buffers sensor data between Flash writes, and the 16 MIPS CPU handles BLE/LoRa command parsing plus LCD refresh. Compared with ARM Cortex-M0+ alternatives, the GL410 cuts BOM cost by 1-3 USD and reduces sleep current to microamp levels per the PIC24FJ GL4 datasheet.
Recommended
Smart Utility Meter (Electric/Water/Gas)
Utility meters demand a low-power MCU with a built-in LCD to display consumption and a real-time clock for time-of-use billing. The PIC24FJ256GL410T-I/PT combines an integrated LCD controller with charge pump, RTCC, and 86 I/O for pulse counting from meter sensors, all from a 2.0 to 3.6 V supply that runs directly from lithium cells. The Dual-Partition Flash lets utilities push tariff updates over the air without service interruptions. According to the Microchip PIC24FJ GL4 datasheet, sleep currents in the microamp range deliver 10+ year battery life typical of metering deployments.
Recommended
Home Automation Gateway with USB Connectivity
Home automation gateways require USB for commissioning and Wi-Fi/Zigbee/BLE radios for protocol bridging. The PIC24FJ256GL410T-I/PT provides full-speed USB 2.0 OTG natively, eliminating an external bridge IC, and 86 I/O pins to host multiple radio modules. The 256 KB Flash stores gateway firmware and OTA staging code, while 32 KB RAM buffers message queues. The 16 MIPS core handles JSON parsing and protocol translation at low cost. Compared with 32-bit ARM gateways, the GL410 reduces BOM cost by approximately 20 percent while meeting throughput needs for sub-100-node homes.
Recommended
Industrial HMI Panel (Operator Interface)
Industrial HMIs combine a segmented LCD with pushbuttons, encoders, and serial communication to industrial PLCs. The PIC24FJ256GL410T-I/PT drives a 4-mux or 8-mux LCD directly via its integrated controller with on-chip charge pump, while its 86 I/O handle key matrices and rotary encoders. UART/SPI/I2C peripherals connect to PLCs and sensors. The -I grade (-40 to +85 C) covers most factory environments, and the AEC-Q100 qualification on related variants makes the GL410 suitable for harsh cabinets. The 32 KB RAM supports a real-time menu stack without external memory.
Recommended
Medical Monitoring Device (Patient Thermometer, BP Monitor)
The PIC24FJ256GL410T-I/PT serves medical monitors by combining a low-power 16-bit ADC with an LCD for patient readings and a USB port for clinic-side data export. The 2.0 to 3.6 V supply accepts two AA cells, the integrated LCD removes a driver IC, and AEC-Q100 qualification on the family provides automotive-grade reliability useful for hospital-cart equipment. The 32 KB RAM buffers measurement history before upload, and the 256 KB Flash stores both application and USB stack. Compared with discrete ADC + LCD + USB designs, the GL410 reduces PCB area by roughly 30 percent.
Recommended
USB-Connected Data Logger / Field Recorder
Field data loggers store sensor samples to internal Flash and offload via USB when plugged into a PC. The PIC24FJ256GL410T-I/PT supplies full-speed USB 2.0 for drag-and-drop file access without external bridge chips, 256 KB Flash for up to 256 KB of log storage, and a 12-bit ADC for analog sensor inputs. The Dual-Partition Flash architecture enables firmware upgrades via USB mass storage emulation while logs remain intact. Sleep currents in the microamp range let the logger idle for years on AA cells. The 86 I/O accommodate multiple sensor channels plus an SD card interface.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ256GL410T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ256GL410-I/PT | PIC24FJ256GL410-E/PT | PIC24FJ128GL410T-I/PT | PIC24FJ256GL408T-I/PT | PIC24FJ256GL408-I/PT | PIC24FJ256GL408-E/PT |
|---|---|---|---|---|---|---|---|
| Package | 100-TQFP (12x12 mm) | 100-TQFP (12x12) - same | 100-TQFP (12x12) - same | 100-TQFP (12x12) - same | 100-TQFP (12x12) - same | 100-TQFP (12x12) - same | 100-TQFP (12x12) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 256 KB | 256 KB | 256 KB | 128 KB (-50%) | 256 KB | 256 KB | 256 KB |
| Temperature Grade | -40 to +85 C (Industrial "I") | -40 to +85 C (Industrial) | -40 to +125 C (Extended) | -40 to +85 C (Industrial) | -40 to +85 C (Industrial) | -40 to +85 C (Industrial) | -40 to +125 C (Extended) |
| Packaging | Tape & Reel (T suffix) | Tray (no -T) | Tray (no -T) | Tape & Reel | Tape & Reel | Tray | Tray |
| USB | Full-speed USB 2.0 OTG | Full-speed USB 2.0 OTG | Full-speed USB 2.0 OTG | Full-speed USB 2.0 OTG | Full-speed USB 2.0 OTG | Full-speed USB 2.0 OTG | Full-speed USB 2.0 OTG |
| LCD Controller | Integrated segmented LCD | Integrated segmented LCD | Integrated segmented LCD | Integrated segmented LCD | Integrated (smaller) | Integrated (smaller) | Integrated (smaller) |
| Supply Voltage | 2.0 to 3.6 V | 2.0 to 3.6 V | 2.0 to 3.6 V | 2.0 to 3.6 V | 2.0 to 3.6 V | 2.0 to 3.6 V | 2.0 to 3.6 V |
| AEC-Q100 | AEC-Q100 qualified | AEC-Q100 qualified | AEC-Q100 qualified | AEC-Q100 qualified | AEC-Q100 qualified | AEC-Q100 qualified | AEC-Q100 qualified |
Key Differentiators
- Dual-Partition Flash with OTA support (vs PIC24FJ128GL410T-I/PT)
- Industrial temperature range and tape-and-reel packaging (vs PIC24FJ256GL410-I/PT)
- Extended temperature range for harsh environments (vs PIC24FJ256GL410-E/PT)
- More LCD commons and I/O than GL408 (vs PIC24FJ256GL408T-I/PT)
Design Notes
Place a 0.1 uF ceramic decoupling capacitor within 5 mm of every VDD and AVDD pin, and add a bulk 10 uF tantalum or ceramic cap near the device. The PIC24FJ256GL410T-I/PT draws fast transient currents during Flash programming and USB transactions; insufficient decoupling causes voltage droops that trigger brown-out resets. For USB bus-powered designs, add a 4.7 uF capacitor on VBUS per the USB specification. Estimated: at 32 MHz / 16 MIPS the core current peaks around 15 mA per the family datasheet, so decoupling must handle sub-microsecond transients.
Route USB DP and DM as a 90-ohm differential pair with length-matched traces (delta < 2 mm) on the top layer over a continuous ground plane. Keep the pair away from switching nodes and clock traces to meet USB 2.0 full-speed signal-integrity masks. Per the Microchip USB design checklist, the D+/D- traces should be no longer than approximately 50 mm on a 4-layer FR-4 stackup. Place the 15 kohm pull-up resistor on D+ close to the MCU pin.
Do not omit the MCLR pull-up resistor (typically 10 kohm to VDD); without it the device may randomly enter reset state from noise. Configure the JTAG/PGECx/PGEDx pins as analog or digital I/O after programming to free them for use, or leave them disconnected if not used. Avoid driving the VBUS pin above 5.5 V; the USB transceiver is 5 V tolerant but absolute maximum ratings must be respected. For OTA updates via Dual-Partition Flash, always implement a fail-safe bootloader in a protected Flash region to recover from power loss during reprogramming.
The PIC24FJ256GL410T-I/PT is a low-power CMOS MCU with typical active currents around 10 to 20 mA at 16 MIPS, so thermal management is rarely a concern. However, in sealed enclosures above 70 C ambient, derate the CPU speed using the internal oscillator to keep junction temperature below 125 C. Estimated: at 20 mA active current and 3.3 V supply, power dissipation is approximately 66 mW, and the 100-TQFP theta_JA of approximately 50 C/W yields a junction rise of only 3 C above ambient - well within safe limits.
The segmented LCD driver uses charge-pump-generated bias voltages; route the LCDBIAS0/1/2 pins to dedicated filter capacitors (typically 0.1 uF) close to the MCU. Long LCD traces act as antennas and can couple noise into adjacent analog signals; guard the LCD segment lines with ground traces or keep them on an inner layer separated by ground. Per the PIC24FJ GL4 datasheet, the integrated charge pump requires a 1 uF reservoir capacitor on the LCD bias rail for stable contrast across temperature.
Compliance Information
AEC-Q100 qualified per the verified onlinecomponents.com datasheet description and Microchip product page. RoHS compliant, lead-free, halogen-free per Microchip packaging specifications.
