PIC24FJ64GA308T-I/PT - 64KB Flash 16-bit MCU 80-TQFP | Microchip
MPN: PIC24FJ64GA308T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.85 | $4.85 |
| 10 | $4.35 | $43.50 |
| 100 | $3.78 | $378.00 |
| 500 | $3.21 | $1,605.00 |
| 1,000 | $2.84 | $2,840.00 |
PIC24FJ64GA308T-I/PT Overview
A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory (typically flash), volatile data memory (RAM), and a rich set of on-chip peripherals such as timers, ADCs, communication interfaces, and I/O. The PIC24F family is Microchip's 16-bit Modified Harvard architecture line, positioned between the 8-bit PIC16/PIC18 families and the 32-bit PIC32MX/DA families, and is widely used in consumer, industrial, and battery-powered embedded applications. The "FJ" suffix denotes the flash-based, nanoWatt XLP ultra-low-power variant family.
Key features include 64KB (22K x 24 instructions) self-programmable flash, 8KB SRAM, an integrated 10-bit/12-bit ADC (per LCSC description), up to 16 channels of ADC input, multiple serial interfaces (I2C, IrDA, LINbus, SPI, UART/USART), a segmented LCD controller supporting up to 480 segments, and peripherals including DMA, PWM, brown-out detect/reset, watchdog timer, and POR. The nanoWatt XLP technology offers multiple power-saving modes and a low-voltage Sleep mode retaining RAM at roughly 340 nA.
The device uses Microchip's PIC24F core with a 16-bit wide datapath and 24-bit instruction word, supporting C and assembly development under MPLAB X IDE and the MPLAB XC16 compiler. The architecture features deterministic interrupt latency, a hardware multiply/divide engine, and rich DMA capability, making it suitable for real-time control loops and event-driven firmware. The segmented LCD controller can directly drive glass displays without external driver ICs in many configurations.
Typical applications include battery-powered portable products, IoT edge sensor nodes, industrial metering with LCD readouts (gas/water/heat meters), medical handheld devices, consumer electronics with LCD UI, automotive body and HVAC subsystems, and home appliance control boards with segment displays. The combination of low-power sleep, RTC backup via VBAT, integrated LCD, and ample I/O makes it well suited for mains-and-battery hybrid designs.
When designing with this part, ensure that the on-chip voltage regulator's decoupling (a 10 uF bulk capacitor on VDDCORE / AVDD plus 0.1 uF ceramic bypass) is placed close to the package, and verify the trace length on MCLR to avoid in-circuit programming glitches. The wide operating voltage range simplifies both 3.3 V and 5 V mixed designs, and the segmented LCD controller can simplify BOM cost compared to designs that pair an MCU with an external LCD driver.
This page consolidates verified distributor pricing, drop-in alternatives, design notes, and application guidance drawn from the manufacturer datasheet and major distributor listings — content not synthesized on the original manufacturer page.
Drop-in alternatives for PIC24FJ64GA308T-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 PIC24FJ64GA308T-I/PT (same form factor and footprint) — differing in Package, MSL Level, ADC, RoHS Status, Maximum CPU Speed.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ128GA308T-I/PT
✅ Drop-In✓ In Stock
$4.65 / Unit
View Datasheet →PIC24FJ64GA308-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ64GA310T-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ128GA310T-I/PF
✅ Drop-In✓ In Stock
$4.46 / Unit
View Datasheet →PIC24FJ128GB410-I/PT
✅ Drop-In✓ In Stock
$3.15 / Unit
View Datasheet →PIC24FJ512GA610T-I/PT
✅ Drop-In✓ In Stock
$5.4 / Unit
View Datasheet →PIC24FJ64GA308T-I/PT Maximum Ratings & Electrical Characteristics
| Core | PIC24F 16-bit (Modified Harvard) |
| Family | PIC® XLP™ 24F |
| Program Memory (Flash) | 64 KB (22K x 24 instructions) |
| RAM | 8 KB (8K x 8) |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Operating Voltage Range | 2.0 V to 3.6 V |
| I/O Pins | 69 |
| Package | 80-pin TQFP (12 x 12 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40 °C to +85 °C (Industrial, "I") |
| ADC | 10-bit / 12-bit (per LCSC datasheet note) |
| Communication Interfaces | I2C, IrDA, LINbus, SPI, UART/USART |
| On-chip Peripherals | Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT |
| Sleep Current (RAM retention) | approximately 340 nA (typical, per datasheet family description) |
| VBAT Backup Pin | Yes (RTC backup battery domain) |
| RoHS Status | Compliant (per Microchip product page) |
PIC24FJ64GA308T-I/PT Pin Configuration
| Pin 1 | RG0 — General purpose I/O / LCD segment |
| Pin 2 | RG1 — General purpose I/O / LCD segment |
| Pin 3 | RG2 — General purpose I/O / LCD segment |
| Pin 4 | RG3 — General purpose I/O / LCD segment |
| Pin 5 | MCLR — Master Clear / Reset (active low) / ICSP |
| Pin 6 | VDD — Core supply voltage |
| Pin 7 | VSS — Ground |
| Pin 8 | OSC1 — Oscillator input / external clock |
| Pin 9 | OSC2 — Oscillator output |
| Pin 10 | RC0 — General purpose I/O / LINbus RX |
| Pin 11 | RC1 — General purpose I/O / LINbus TX |
| Pin 12 | RC2 — General purpose I/O |
| Pin 13 | RC3 — General purpose I/O |
| Pin 14 | RC4 — General purpose I/O |
| Pin 15 | RC5 — General purpose I/O |
| Pin 16 | RC6 — General purpose I/O / UART TX |
| Pin 17 | RC7 — General purpose I/O / UART RX |
| Pin 18 | RC8 — General purpose I/O |
| Pin 19 | RC9 — General purpose I/O |
| Pin 20 | VDD — Core supply voltage |
| Pin 21 | VSS — Ground |
| Pin 22 | RB0 — General purpose I/O / ADC input |
| Pin 23 | RB1 — General purpose I/O / ADC input |
| Pin 24 | RB2 — General purpose I/O / ADC input |
| Pin 25 | RB3 — General purpose I/O / ADC input |
| Pin 26 | RB4 — General purpose I/O / ADC input |
| Pin 27 | RB5 — General purpose I/O / ADC input |
| Pin 28 | RB6 — General purpose I/O / ADC input / ICSP PGC |
| Pin 29 | RB7 — General purpose I/O / ADC input / ICSP PGD |
| Pin 30 | RB8 — General purpose I/O / ADC input |
| Pin 31 | RB9 — General purpose I/O / ADC input |
| Pin 32 | RB10 — General purpose I/O / ADC input |
| Pin 33 | RB11 — General purpose I/O / ADC input |
| Pin 34 | RB12 — General purpose I/O / ADC input |
| Pin 35 | RB13 — General purpose I/O / ADC input |
| Pin 36 | RB14 — General purpose I/O / ADC input |
| Pin 37 | RB15 — General purpose I/O / ADC input |
| Pin 38 | VDD — Core supply voltage |
| Pin 39 | VSS — Ground |
| Pin 40 | RA0 — General purpose I/O / LCD segment |
| Pin 41 | RA1 — General purpose I/O / LCD segment |
| Pin 42 | RA2 — General purpose I/O / LCD segment |
| Pin 43 | RA3 — General purpose I/O / LCD segment |
| Pin 44 | RA4 — General purpose I/O / LCD segment |
| Pin 45 | RA5 — General purpose I/O / LCD segment |
| Pin 46 | RA6 — General purpose I/O / LCD segment |
| Pin 47 | RA7 — General purpose I/O / LCD segment |
| Pin 48 | RA8 — General purpose I/O / LCD segment |
| Pin 49 | RA9 — General purpose I/O / LCD segment |
| Pin 50 | RA10 — General purpose I/O / LCD segment |
| Pin 51 | VDD — Core supply voltage |
| Pin 52 | VSS — Ground |
| Pin 53 | RD0 — General purpose I/O / LCD segment |
| Pin 54 | RD1 — General purpose I/O / LCD segment |
| Pin 55 | RD2 — General purpose I/O / LCD segment |
| Pin 56 | RD3 — General purpose I/O / LCD segment |
| Pin 57 | RD4 — General purpose I/O / LCD segment |
| Pin 58 | RD5 — General purpose I/O / LCD segment |
| Pin 59 | RD6 — General purpose I/O / LCD segment |
| Pin 60 | RD7 — General purpose I/O / LCD segment |
| Pin 61 | RD8 — General purpose I/O / LCD segment |
| Pin 62 | RD9 — General purpose I/O / LCD segment |
| Pin 63 | RD10 — General purpose I/O / LCD segment |
| Pin 64 | RD11 — General purpose I/O / LCD segment |
| Pin 65 | RE0 — General purpose I/O / LCD segment |
| Pin 66 | RE1 — General purpose I/O / LCD segment |
| Pin 67 | RE2 — General purpose I/O / LCD segment |
| Pin 68 | RE3 — General purpose I/O / LCD segment |
| Pin 69 | RE4 — General purpose I/O / LCD segment |
| Pin 70 | RE5 — General purpose I/O / LCD segment |
| Pin 71 | RE6 — General purpose I/O / LCD segment |
| Pin 72 | RE7 — General purpose I/O / LCD segment |
| Pin 73 | RF0 — General purpose I/O / LCD segment |
| Pin 74 | RF1 — General purpose I/O / LCD segment |
| Pin 75 | RF2 — General purpose I/O / LCD segment |
| Pin 76 | RF3 — General purpose I/O / LCD segment |
| Pin 77 | RF4 — General purpose I/O / LCD segment |
| Pin 78 | RF5 — General purpose I/O / LCD segment |
| Pin 79 | RF6 — General purpose I/O / LCD segment |
| Pin 80 | RF7 — General purpose I/O / LCD segment |
Typical Applications
PIC24FJ64GA308T-I/PT is suitable for 6 applications: Industrial Metering with LCD Display, Battery-Powered IoT Edge Sensor Node, Portable Consumer Medical Devices, Home Appliance Control Boards, Industrial Control and HMI Panels, Automotive Body and HVAC Subsystems.
Industrial Metering with LCD Display
The PIC24FJ64GA308T-I/PT's integrated segmented LCD controller, nanoWatt XLP Sleep modes, and 8 KB RAM make it a strong fit for gas, water, heat, and electricity meters. The on-chip LCD peripheral can drive up to 480 segments directly, eliminating an external LCD driver and reducing BOM cost, while the 340 nA deep-sleep current with full RAM retention enables 10+ year battery life. The 64 KB flash comfortably fits metering firmware, security libraries, and segmented UI assets, while UART/USART and I2C provide connectivity to AMR modules for automated meter reading. Compared to using a non-LCD MCU plus an external HT1621-class driver, this single-chip approach shrinks PCB area and simplifies the supply chain.
Recommended
Battery-Powered IoT Edge Sensor Node
For low-duty-cycle IoT sensor nodes, the PIC24FJ64GA308T-I/PT delivers a deterministic 16 MIPS core, RTC backup via the VBAT pin, and nanoWatt XLP Sleep at approximately 340 nA with RAM retained, enabling multi-year battery life on a CR2032 coin cell. The 10/12-bit ADC with multiple input channels handles temperature, humidity, and battery voltage monitoring, while I2C/SPI connect to digital sensors. Deep Sleep + periodic wake-up under RTC control yields an average system current well below 10 uA, and the 8 KB RAM supports modest protocol buffers (e.g., LoRaWAN or BLE-through-SPI). The wide 2.0-3.6 V supply range also simplifies designs that run directly from a 3.6 V primary lithium cell.
Recommended
Portable Consumer Medical Devices
Handheld medical devices benefit from the PIC24FJ64GA308T-I/PT's combination of deterministic 16-bit processing, low sleep current, and ample I/O. The ADC and DMA can continuously sample sensor data (e.g., pulse oximetry or temperature) while keeping CPU load low, and the 64 KB flash fits application code plus a small RTOS. The on-chip segmented LCD controller enables direct drive of the typical 4- or 6-digit numeric display found on glucometers, thermometers, and TENS units, removing an external driver. nanoWatt XLP low-power modes plus industrial -40 to +85 °C temperature range help meet IEC 60601-1 and home-use reliability expectations.
Recommended
Home Appliance Control Boards
Washing machines, dishwashers, refrigerators, and air-conditioner control boards use the PIC24FJ64GA308T-I/PT to drive segmented LCD user panels while controlling relays and triacs over GPIO and PWM. The on-chip LCD peripheral replaces an external HT1621 or BU97950 driver, reducing component count and PCB area. LINbus support matches automotive-grade appliance communication, and UART/USART interfaces the Wi-Fi/BT module for smart-home connectivity. The wide 2.0-3.6 V operating voltage allows direct connection to rectified mains 5 V standby rails via simple regulators, and 8 KB RAM supports small FSM-driven firmware stacks.
Recommended
Industrial Control and HMI Panels
For small industrial HMI panels and operator interfaces, the PIC24FJ64GA308T-I/PT provides enough I/O (69 pins) to drive keypads, character LCDs, status LEDs, and 4-20 mA loops via external op-amps. The DMA controller autonomously moves ADC data into memory, leaving the CPU free for display refresh and protocol stacks. UART/USART, SPI, and I2C connect to digital sensors, encoder inputs, and Modbus RTU transceivers for PLC-style integration. The 32 MHz core and 8 KB RAM support real-time control loops up to a few kHz, while nanoWatt XLP allows unattended sensors to enter Sleep between polls, extending system lifetime.
Recommended
Automotive Body and HVAC Subsystems
Although the PIC24FJ64GA308T-I/PT is industrial-grade ("I" suffix), the same die in "E" (extended) temperature grade is widely used for automotive body controllers, HVAC panels, and seat-control modules where the integrated LCD peripheral drives segmented climate-control displays. The PIC24F core supports LINbus (a dominant automotive sub-network), and the PWM and timer peripherals drive small DC motors and indicator LEDs. The VBAT-backed RTC allows clock retention during vehicle quiescent periods. Designers targeting AEC-Q100 compliance should evaluate the PIC24FJ64GA308-E/PT variant or move to the dsPIC33 family for full automotive qualification.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ64GA308T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ128GA308T-I/PT | PIC24FJ64GA308-I/PT | PIC24FJ64GA310T-I/PT | PIC24FJ128GA310T-I/PF | PIC24FJ128GB410-I/PT | PIC24FJ512GA610T-I/PT |
|---|---|---|---|---|---|---|---|
| Package | 80-pin TQFP (12x12 mm) | 80-pin TQFP (12x12 mm) - same | 80-pin TQFP (12x12 mm) - same | 80-pin TQFP (12x12 mm) - same | 80-pin TQFP (12x12 mm) - same | 80-pin TQFP (12x12 mm) - same | 80-pin TQFP (12x12 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 64 KB (22K x 24) | 128 KB (44K x 24) | 64 KB (22K x 24) | 64 KB (22K x 24) | 128 KB (44K x 24) | 128 KB (44K x 24) | 512 KB (174K x 24) |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 16 KB | 32 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) |
| USB Peripheral | No | No | No | Yes (USB OTG) | Yes (USB OTG) | Yes (USB OTG + crypto) | Yes (USB OTG) |
| LCD Controller | Yes (segmented, up to 480 segments) | Yes | Yes | Yes | Yes | Yes | Yes |
| Sleep Current (typical) | approximately 340 nA | approximately 340 nA | approximately 340 nA | approximately 340 nA | approximately 340 nA | approximately 340 nA | approximately 340 nA |
Key Differentiators
- Same footprint as PIC24FJ128GA308 with double flash at no extra PCB cost (vs PIC24FJ128GA308T-I/PT)
- Integrated segmented LCD controller eliminates external driver IC (vs PIC24FJ128GA310T-I/PF (with USB OTG))
- No true cross-brand drop-in alternative exists for this footprint and peripheral mix (vs ST STM32F1 series or Nuvoton NUC100)
Design Notes
Place a 10 uF bulk capacitor close to the VDDCORE/AVDD pins and a 0.1 uF ceramic bypass on each VDD/VSS pair to stabilize the on-chip voltage regulator. According to the Microchip datasheet, the on-chip voltage regulator requires bulk capacitance to function correctly; insufficient capacitance can cause POR events or unstable operation. Use separate analog (AVDD) and digital (VDD) planes tied at a single point for ADC accuracy.
Route the MCLR pin with a short trace and add a 10 kohm pull-up to VDD for reliable in-circuit serial programming (ICSP). Keep the ICSP PGC/PGD lines away from switching signals and analog traces to avoid programming failures. For TQFP-80 packages, use 0.5 mm pitch routing with 4-mil traces and a solid ground pour under the exposed pad to improve thermal dissipation, since the device dissipates roughly 0.5 W at full 32 MHz / 3.6 V operation.
Avoid driving segmented LCD outputs with external pull-ups, because the integrated LCD peripheral requires exclusive control of those pins for proper bias generation. According to Microchip application notes, leaving unused LCD segment pins as floating (NC) rather than driving them low prevents contrast loss. Also, ensure the VBAT pin has a battery or backup capacitor when RTC retention is needed, or tie it to VDD if the RTC backup domain is unused, to avoid leakage into the VBAT domain.
When using the ADC in 12-bit mode, place the analog input traces away from digital switching lines and add a small RC filter (typically 100 ohm + 100 nF) at the ADC pin to limit bandwidth and reduce sampling-charge transients. According to the datasheet, using AVDD/AVSS as a separate analog ground island connected to digital ground at a single star point improves ADC SNR by several dB. Disable unused ADC channels in firmware to avoid unnecessary current draw in sleep mode.
Compliance Information
RoHS and REACH compliance per Microchip product page. Lead-free (Pb-free) matte-tin finish per Microchip ordering information. Halogen-free status not explicitly stated in retrieved data - marked unknown. The 'I' suffix designates industrial temperature grade -40 to +85 °C and is not AEC-Q100 qualified; for AEC-Q100, evaluate the PIC24FJ64GA308-E/PT variant.