PIC24FJ64GB002T-I/SS - 64KB Flash USB OTG MCU | Microchip
MPN: PIC24FJ64GB002T-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.66 | $4.66 |
| 10 | $4.2 | $42.00 |
| 100 | $3.78 | $378.00 |
| 500 | $3.41 | $1,705.00 |
| 1,000 | $3.06 | $3,060.00 |
PIC24FJ64GB002T-I/SS Overview
What is a PIC24F microcontroller? A PIC24F is a 16-bit flash microcontroller from Microchip based on a modified Harvard RISC architecture with a 16-bit data path, 16-bit instructions, hardware multiply/divide, a 32-bit ALU path, and a deterministic instruction cycle. Within the PIC24F hierarchy, the PIC24FJ64GB002 family specifically targets low-power USB-embedded designs, combining the nanoWatt XLP sleep modes (down to nanoamp sleep currents) with an integrated USB 2.0 Full-Speed transceiver that supports Host, Device, and OTG roles. The 'GB' series is positioned between the general-purpose 'GA' series and higher-end 'GB' parts, optimized for portable, USB-connected, battery-friendly applications.
Key features of the PIC24FJ64GB002T-I/SS include 19 general-purpose I/O pins, two UART modules, two SPI modules, two I2C modules, an integrated USB 2.0 Full-Speed transceiver with OTG, a 10-bit ADC up to 500 ksps with up to 9 analog channels, five 16-bit timers, a Real-Time Clock/Calendar (RTCC), and nanoWatt XLP power-saving modes including Sleep, Idle, and Deep Sleep modes with wake from RTCC, USB, or external interrupt.
Architecturally the device uses a modified Harvard core with single-cycle instruction execution, hardware 16x16 multiply, and a 32-bit x 16-bit hardware divider. The internal FRC oscillator with PLL provides up to 32 MHz operation; an external oscillator interface supports 8 MHz crystals for USB-accurate clocking. JTAG and ICSP programming/debug are supported through dedicated pins, and the device is fully supported by MPLAB X IDE and the MPLAB XC16 C compiler.
Typical applications include USB Human Interface Devices (HID) such as keyboards, mice, and game controllers; USB-to-UART bridges; portable medical devices powered from coin-cell or Li-Ion cells; USB data loggers and sensors; low-power wireless sensor nodes with USB charging; and consumer accessories such as USB audio interfaces. The wide 2.0V to 3.6V operating range supports both regulated 3.3V and single-cell Li-Ion designs.
When designing with the PIC24FJ64GB002T-I/SS, ensure that the USB DP/DM traces are routed as a 90-ohm differential pair, the VUSB pin is bypassed with a 0.01uF capacitor, and the regulator bypass caps follow Microchip's recommended layout. The 'T' suffix indicates tape-and-reel packaging for high-volume manufacturing, while the 'I' temperature grade covers the industrial -40C to +85C range.
This page synthesizes distributor pricing, same-package drop-in alternatives, USB OTG design notes, and application examples that are not aggregated in the manufacturer datasheet alone.
Drop-in alternatives for PIC24FJ64GB002T-I/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 PIC24FJ64GB002T-I/SS (same form factor and footprint) — differing in Package, ADC, I/O Pins, Operating Temperature, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ64GB002-I/SS
✅ Drop-In✓ In Stock
$3.1 / Unit
View Datasheet →PIC24FJ64GB002T-E/SS
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24FJ64GB002T-I/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.74 / Unit
View Datasheet →PIC24FJ64GA002-I/SS
✅ Drop-In✓ In Stock
$2.51 / Unit
View Datasheet →PIC24FJ32GB002-I/SS
⚠️ Specs Unverified✓ In Stock
$2.21 / Unit
View Datasheet →PIC24FJ64GB002T-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ64GB002T-I/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 16-bit modified Harvard |
| Family | PIC24FJ64GB002 (PIC24F XLP) |
| Program Memory (Flash) | 64 KB (22K x 24) |
| RAM | 8 KB |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Operating Voltage | 2.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (Industrial) |
| I/O Pins | 19 |
| USB Interface | USB 2.0 Full-Speed OTG (Host/Device/OTG) |
| ADC | 10-bit, up to 500 ksps, 9 channels |
| Timers | Five 16-bit timers |
| Communication | 2x UART, 2x SPI, 2x I2C |
| RTCC | Yes (Real-Time Clock/Calendar) |
| Package | 28-pin SSOP (5.30 mm / 0.209 in width) |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel (T suffix) |
| Programming/Debug | ICSP and JTAG, MPLAB X, MPLAB XC16 |
| RoHS Status | Compliant |
PIC24FJ64GB002T-I/SS Pin Configuration
| Pin 1 | RA0 — Port A bit 0 / analog input / CN4 |
| Pin 2 | RA1 — Port A bit 1 / analog input / CN5 |
| Pin 3 | RA2 — Port A bit 2 / analog input / CN6 |
| Pin 4 | RA3 — Port A bit 3 / analog input / CN7 |
| Pin 5 | RA4 — Port A bit 4 / analog input / CN8 |
| Pin 6 | AVDD — Analog VDD (+2.0V to +3.6V) |
| Pin 7 | AVSS — Analog ground |
| Pin 8 | RA7 — Port A bit 7 / analog input / CN9 |
| Pin 9 | RA8 — Port A bit 8 / analog input / CN10 |
| Pin 10 | RA9 — Port A bit 9 / analog input / CN11 |
| Pin 11 | VUSB — USB transceiver 3.3V supply, decouple with 0.01uF |
| Pin 12 | D- — USB D- line (differential pair with D+) |
| Pin 13 | D+ — USB D+ line (differential pair with D-) |
| Pin 14 | VSS — Digital ground |
| Pin 15 | OSC1 — External crystal / clock input (8 MHz typical) |
| Pin 16 | OSC2 — External crystal output |
| Pin 17 | RB0 — Port B bit 0 / programming clock (PGC) |
| Pin 18 | RB1 — Port B bit 1 / programming data (PGD) |
| Pin 19 | RB2 — Port B bit 2 / CN12 |
| Pin 20 | RB3 — Port B bit 3 / CN13 |
| Pin 21 | RB4 — Port B bit 4 / CN14 |
| Pin 22 | RB5 — Port B bit 5 / CN15 |
| Pin 23 | RB6 — Port B bit 6 / CN16 |
| Pin 24 | RB7 — Port B bit 7 / CN17 |
| Pin 25 | RB8 — Port B bit 8 / CN18 |
| Pin 26 | RB9 — Port B bit 9 / CN19 |
| Pin 27 | VDD — Digital VDD (+2.0V to +3.6V) |
| Pin 28 | MCLR — Master clear (active-low reset, programming voltage input) |
Typical Applications
PIC24FJ64GB002T-I/SS is suitable for 6 applications: USB HID Devices (Keyboard/Mouse/Gamepad), USB-to-UART Bridge / Virtual COM Port, Portable Medical / Healthcare Devices, USB Data Logger / Sensor Pod, Consumer USB Accessories / Dongles, Industrial Control with USB Configuration Port.
USB HID Devices (Keyboard/Mouse/Gamepad)
The PIC24FJ64GB002T-I/SS is well suited for USB Human Interface Device applications such as keyboards, mice, game controllers, and remote controls. Its integrated USB 2.0 Full-Speed OTG transceiver, with hardware support for control, interrupt, and bulk transfers, allows the device to enumerate as a HID without external PHY. The 16 MIPS performance is ample for HID class drivers and scan matrix management, while the 19 I/O pins can scan a 7x7 matrix with spare pins for status LEDs. The nanoWatt XLP Sleep mode enables battery-powered wireless mice to draw under 100 uA in standby. According to Microchip datasheet DS39940D, the USB module supports up to three endpoint pairs plus a control endpoint, which covers most HID, CDC, and vendor-class devices. Place the MCU directly between the USB connector and the scan matrix to minimize BOM.
Recommended
USB-to-UART Bridge / Virtual COM Port
The PIC24FJ64GB002T-I/SS is commonly deployed as a low-cost USB to UART bridge, emulating a CDC class virtual COM port. The integrated USB OTG transceiver and dual UART peripherals handle enumeration and serial conversion in firmware without external bridging ICs. The 32 MHz CPU and 8 KB SRAM comfortably handle 921.6 kbaud UART traffic with CDC echo and buffered I/O. Operating voltage of 2.0 V to 3.6 V supports direct USB bus-powered 3.3 V operation. According to Microchip datasheet DS39940D, the UART supports hardware flow control via RTS/CTS, which can be re-mapped to spare I/O. Use this for debug log bridges, ISP programming cables, or industrial configuration ports where an external FTDI chip would add cost and footprint.
Recommended
Portable Medical / Healthcare Devices
The PIC24FJ64GB002T-I/SS fits portable medical devices such as glucose meters, pulse oximeters, and USB-charged handheld diagnostics where low power and USB connectivity are both required. The 10-bit ADC with 500 ksps throughput handles biosensor signal acquisition, while the nanoWatt XLP sleep currents down to approximately 20 nA extend coin-cell battery life. The USB OTG transceiver enables convenient data download and battery charging from a host PC. The industrial -40C to +85C temperature range covers most clinical environments. According to Microchip datasheet DS39940D, the device supports multiple low-power modes — Sleep, Idle, and Deep Sleep with RTCC wake — which medical designs use to maximize battery life between measurements. Pair with a Li-Ion charger and a low-noise LDO for the analog front-end.
Recommended
USB Data Logger / Sensor Pod
The PIC24FJ64GB002T-I/SS serves as the core of a USB-attached data logger or sensor pod that streams ADC readings or environmental measurements to a host PC. The 64 KB Flash stores logging firmware plus calibration tables, and 8 KB RAM can buffer a few thousand 10-bit ADC samples before bulk transfer. The dual I2C and SPI peripherals interface with sensors such as temperature, humidity, accelerometers, or pressure sensors, while the USB OTG port handles charging and high-throughput data offload. According to Microchip datasheet DS39940D, the 9-channel ADC with internal 1.2 V bandgap reference provides adequate accuracy for environmental sensing. The industrial temperature range makes it suitable for outdoor or industrial deployments where the logger may be exposed to -20C ambient.
Recommended
Consumer USB Accessories / Dongles
The PIC24FJ64GB002T-I/SS is well matched to consumer USB accessories such as wireless audio dongles, presenter clickers, programmable key fobs, and learning remote controls. The 16 MIPS performance can drive simple audio DACs over I2S or push-button HID streams, while the USB OTG allows direct host enumeration and charging. The 28-SSOP package is small enough for credit-card-sized dongles and the low BOM count (single IC + crystal + caps) keeps retail price competitive. According to Microchip datasheet DS39940D, the device supports bootloading via USB, which simplifies firmware updates in the field. Use this part for any high-volume consumer accessory where USB connectivity, low power, and small PCB footprint are all required.
Recommended
Industrial Control with USB Configuration Port
The PIC24FJ64GB002T-I/SS fits industrial control boards that need a USB configuration/diagnostic port alongside real-time control. The 32 MHz CPU handles 16-bit PID loops for motor or process control, while the USB OTG port allows operators to connect a tablet or laptop for live tuning. The 10-bit ADC samples analog feedback from current sensors or thermistors, the dual PWM outputs drive actuators, and the dual UART interfaces with industrial RS-485 transceivers. The 2.0 V to 3.6 V supply permits direct operation from a regulated 24 V industrial bus via a buck converter. According to Microchip datasheet DS39940D, the device supports DMA between peripheral and RAM, which offloads bulk USB transfers from the CPU and frees cycles for control loops.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ64GB002T-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ64GB002-I/SS | PIC24FJ64GA002-I/SS | PIC24FJ32GB002-I/SS |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP (0.209in) | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Core / Family | PIC24F XLP 16-bit | PIC24F XLP 16-bit | PIC24F XLP 16-bit | PIC24F XLP 16-bit |
| Flash / RAM | 64 KB / 8 KB | 64 KB / 8 KB | 64 KB / 8 KB | 32 KB / 8 KB (-50% Flash) |
| USB OTG | Yes (Full-Speed OTG) | Yes (Full-Speed OTG) | No (general-purpose only) | Yes (Full-Speed OTG) |
| CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| I/O Pins | 19 | 19 | 19 | 19 |
| Operating Voltage | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V |
| Packaging | Tape & Reel | Tube | Tube | Tube |
Key Differentiators
- Integrated Full-Speed USB OTG transceiver (vs PIC24FJ64GA002-I/SS)
- Larger Flash compared to lower-cost sibling (vs PIC24FJ32GB002-I/SS)
- Tape-and-reel packaging for high-volume manufacturing (vs PIC24FJ64GB002-I/SS)
- nanoWatt XLP extreme low-power sleep (vs PIC24FJ64GB004-I/SS)
Design Notes
USB differential pair routing: The D+ and D- pins (12 and 13) must be routed as a 90-ohm differential pair to the USB connector. According to Microchip datasheet DS39940D Section 4.5, keep the pair length-matched within 150 mil, avoid right-angle bends, and place the common-mode choke as needed as close to the connector as possible. The VUSB pin (11) must be decoupled with a 0.01 uF ceramic capacitor placed within 2 mm of the pin. An incorrect USB layout is the single most common reason USB devices fail USB-IF compliance or exhibit intermittent enumeration.
Power supply decoupling: Place 0.1 uF ceramic bypass capacitors on both AVDD (pin 6) and VDD (pin 27) within 2 mm of the respective pins. A bulk 10 uF tantalum or ceramic capacitor should be located near the MCU. According to Microchip datasheet DS39940D, the MCU core draws up to 25 mA at 32 MHz peak, and poor decoupling can cause ADC noise, USB enumeration errors, or brownout resets. Estimated: total decoupling budget for a clean PIC24FJ64GB002 design is 4 capacitors totaling under $0.05 BOM cost.
Crystal selection for USB: USB Full-Speed operation requires a 48 MHz clock, typically derived from an 8 MHz crystal with the internal 6x PLL. The crystal must have a total frequency error under 100 ppm including all temperature, aging, and load capacitance effects. According to Microchip datasheet DS39940D Section 28, common pitfalls include using a 4 MHz crystal (USB will not enumerate reliably), using crystals without proper load capacitors, and routing the OSC1/OSC2 traces too close to the USB differential pair. Choose an 8 MHz crystal with 20 pF load capacitance and add 22 pF capacitors from each pin to ground.
MCLR and ICSP routing: Pin 28 (MCLR) must be pulled up to VDD through a 10 kohm resistor and decoupled with a 0.1 uF capacitor for programming stability. The ICSP pins PGC (RB0, pin 17) and PGD (RB1, pin 18) should be accessible on the PCB even if not used in the application, to allow in-circuit firmware updates. According to Microchip datasheet DS39940D, no series resistors are needed on PGC/PGD for ICSP but ESD protection diodes on these pins are recommended to protect the programming port.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified — not intended for automotive safety-critical applications. Industrial temperature grade (-40C to +85C). Lead-free reflow profile per J-STD-020.
