PIC24FJ64GB202-E/SP - 64KB Flash 16-bit USB MCU | Microchip
MPN: PIC24FJ64GB202-E/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.45 | $6.45 |
| 10 | $5.78 | $57.80 |
| 100 | $5.12 | $512.00 |
| 500 | $4.62 | $2,310.00 |
| 1,000 | $4.15 | $4,150.00 |
PIC24FJ64GB202-E/SP Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working memory, and peripherals such as timers, ADC, communication controllers, and I/O. Within the embedded hierarchy, an MCU belongs to the broader family of microprocessors and is the workhorse of embedded systems, sitting beneath microprocessors in compute hierarchy and above discrete logic in integration. The PIC24FJ64GB202 is a 16-bit MCU in the modified Harvard architecture family from Microchip, designed for low-power mixed-signal applications that benefit from on-chip cryptography and USB connectivity.
Key features include a hardware crypto engine (AES/DES/SHA), 16-channel 10-bit ADC, up to 21 I/O pins, four 16-bit timers, two UART, two SPI, two I2C, and a real-time clock calendar (RTCC). XLP technology brings active current under 1 mA/MIPS and sleep currents in the nanoamp range, enabling multi-year battery life. The Full-Speed USB 2.0 transceiver supports Host, Device, and OTG roles without an external PHY.
Typical applications include secure IoT endpoints, USB peripherals (HID, CDC, MSD), electronic payment terminals, smart sensors, and portable medical devices. The combination of USB, crypto, and XLP also fits connected wearables, secure authentication tokens, and embedded HMI panels.
When designing, ensure the 28-pin SPDIP footprint reserves the dedicated USB DP/DM pins, place the 12 MHz primary oscillator crystal close to the OSCI/OSCO pins, and add the recommended decoupling network (100 nF + 10 µF) within 5 mm of the VDD pins for EMI and ripple suppression. Always validate the active mode power budget against MCU current draw.
This page consolidates distributor pricing, drop-in compatible PIC24F variants, and design notes not aggregated on the manufacturer datasheet, giving procurement and embedded engineers a single source for sourcing and board-level reuse decisions.
Drop-in alternatives for PIC24FJ64GB202-E/SP — 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 PIC24FJ64GB202-E/SP (same form factor and footprint) — differing in ADC, Package, Mounting Type, Program Memory (Flash), Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ64GB202-I/SP
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ128GB202-E/SP
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ128GB202-I/SP
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ64GB002-I/SP
✅ Drop-In✓ In Stock
$3.05 / Unit
View Datasheet →PIC24FJ64GP202-E/SP
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ64GB202-E/SP Maximum Ratings & Electrical Characteristics
| Product Family | PIC24F XLP |
| Core Architecture | 16-bit modified Harvard |
| Program Memory (Flash) | 64 KB ECC Flash |
| Data Memory (RAM) | 8 KB |
| Operating Frequency | Up to 32 MHz (16 MIPS) |
| Supply Voltage | 2.0 V to 3.6 V |
| Operating Temperature Range | -40 °C to +125 °C (Extended, -E suffix) |
| Package | 28-pin SPDIP (SP) |
| I/O Pins | 21 |
| ADC | 16-channel 10-bit |
| USB | USB 2.0 Full-Speed Host/Device/OTG (on-chip transceiver) |
| Crypto Engine | Hardware AES/DES/SHA |
| Communication Peripherals | 2x UART, 2x SPI, 2x I2C |
| Timers | 4x 16-bit, 1x 32-bit |
| RTCC | Real-Time Clock Calendar |
| Mounting Type | Through-Hole |
| RoHS Status | Compliant |
PIC24FJ64GB202-E/SP Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input, drive low to reset device |
| Pin 2 | RA0 — PORTA bit 0, analog/digital I/O |
| Pin 3 | RA1 — PORTA bit 1, analog/digital I/O |
| Pin 4 | RA2 — PORTA bit 2, analog/digital I/O |
| Pin 5 | RA3 — PORTA bit 3, analog/digital I/O |
| Pin 6 | RA4 — PORTA bit 4, analog/digital I/O |
| Pin 7 | RA5 — PORTA bit 5, analog/digital I/O |
| Pin 8 | VDD — Positive supply voltage (2.0 V to 3.6 V) |
| Pin 9 | OSCI — Oscillator crystal input |
| Pin 10 | OSCO — Oscillator crystal output |
| Pin 11 | RA6 — PORTA bit 6, analog/digital I/O |
| Pin 12 | RA7 — PORTA bit 7, analog/digital I/O |
| Pin 13 | VSS — Ground reference |
| Pin 14 | RB0 — PORTB bit 0, digital I/O |
| Pin 15 | RB1 — PORTB bit 1, digital I/O |
| Pin 16 | RB2 — PORTB bit 2, digital I/O |
| Pin 17 | RB3 — PORTB bit 3, digital I/O |
| Pin 18 | RB4 — PORTB bit 4, digital I/O |
| Pin 19 | RB5 — PORTB bit 5, digital I/O/PGM |
| Pin 20 | RB6 — PORTB bit 6, digital I/O/PGC |
| Pin 21 | RB7 — PORTB bit 7, digital I/O/PGD |
| Pin 22 | VUSB — USB transceiver internal voltage regulator output |
| Pin 23 | D+ — USB data plus (differential) |
| Pin 24 | D- — USB data minus (differential) |
| Pin 25 | RC0 — PORTC bit 0, digital I/O |
| Pin 26 | RC1 — PORTC bit 1, digital I/O |
| Pin 27 | RC2 — PORTC bit 2, digital I/O |
| Pin 28 | AVDD — Analog positive supply |
Typical Applications
PIC24FJ64GB202-E/SP is suitable for 7 applications: Secure USB IoT Endpoints, Electronic Payment Terminals, Portable Medical Devices, USB HID Peripherals (Keyboard/Mouse/Gamepad), Industrial USB Sensor Hubs, Smart Card Authentication Tokens, Connected Wearable Devices.
Secure USB IoT Endpoints
The PIC24FJ64GB202-E/SP is engineered for secure USB-connected IoT endpoints where hardware-accelerated cryptography and Full-Speed USB are mandatory. With an integrated AES/DES/SHA crypto engine and on-chip USB 2.0 transceiver supporting Host/Device/OTG, this MCU eliminates the need for an external crypto chip and external PHY, reducing BOM cost. The XLP eXtreme Low Power architecture brings active current under 1 mA/MIPS and sleep current in the nanoamp range, enabling multi-year battery life on coin cells. The 64 KB ECC Flash and 8 KB RAM comfortably host TLS handshake stacks and USB CDC/HID class drivers. Designers should pair the device with a USB Type-B or Micro-B connector, add proper ESD protection (e.g., USBLC6-2SC6), and route DP/DM as a 90-ohm differential pair. Ideal for secure sensors, environmental monitors, and connected wearables.
Recommended
Electronic Payment Terminals
Payment terminals demand hardware cryptography to meet PCI PTS and EMVCo requirements, and the PIC24FJ64GB202-E/SP delivers on this with an integrated AES-256, DES/3DES, and SHA-256 engine. The hardware accelerator offloads crypto from the CPU, enabling faster transaction times and lower power draw during contactless or chip-card sessions. The Full-Speed USB OTG capability supports connectivity to PIN pads, printers, and host terminals, while the 16-channel 10-bit ADC reads battery voltage, tamper switches, and keypad matrices. The extended -40 to +125 °C temperature grade tolerates outdoor kiosk and mobile POS environments. Pair with a smart-card interface IC (e.g., NXP TDA8007) and an SE (Secure Element) for full payment certification. The 64 KB Flash fits PCI firmware, USB stack, and custom UI logic.
Recommended
Portable Medical Devices
Battery-powered medical devices such as glucose meters, pulse oximeters, and portable nebulizers benefit from the PIC24FJ64GB202-E/SP's XLP low-power architecture and integrated crypto engine for HIPAA-compliant data handling. Active current under 1 mA/MIPS and sleep currents in the nanoamp range extend battery life across thousands of measurements per coin cell. The 10-bit ADC with 16 channels supports multi-sensor analog front ends, while the RTCC provides timestamping for clinical logs. The hardware AES engine enables encrypted Bluetooth or USB data transfer to mobile health apps without burdening the CPU. The extended temperature grade supports home, clinic, and emergency-response environments. The 28-SPDIP package simplifies prototyping and rework during FDA/IEC 62304 design iterations.
Recommended
USB HID Peripherals (Keyboard/Mouse/Gamepad)
USB Human Interface Devices like keyboards, mice, and game controllers leverage the PIC24FJ64GB202-E/SP's Full-Speed USB 2.0 and XLP low-power operation for cable-connected or wireless dongle applications. The integrated USB transceiver eliminates external PHY components, while 21 I/O pins support up to 26-key matrix scanning or 8-axis analog input. The 16 MIPS performance at 32 MHz handles USB HID report generation, debouncing, and LED animations with headroom. Active mode current under 16 mA keeps powered-USB peripherals within budget, and sleep modes support wake-on-interrupt for battery-backed wireless dongles. The hardware crypto engine can secure wireless communication in 2.4 GHz dongle designs paired with an nRF24 or Bluetooth module.
Recommended
Industrial USB Sensor Hubs
Industrial USB sensor hubs aggregate data from multiple analog and digital sensors onto a single USB interface, and the PIC24FJ64GB202-E/SP provides 16 ADC channels plus USB Host capability in a single 28-pin SPDIP. The -E extended temperature range supports factory floor, outdoor, and cabinet-mounted deployments up to +125 °C. The hardware crypto engine secures data upload to industrial gateways or cloud services, meeting IEC 62443 requirements for industrial cybersecurity. The 64 KB Flash fits Modbus, USB CDC, and proprietary protocol stacks simultaneously. Pair with RS-485 transceivers (e.g., MAX485) for Modbus RTU bridging to USB. Designers should add TVS diodes on USB and sensor lines and isolate USB ground from sensor ground to prevent ground loops.
Recommended
Smart Card Authentication Tokens
Authentication tokens such as FIDO2 security keys, smart card readers, and one-time password generators leverage the PIC24FJ64GB202-E/SP's hardware AES/SHA crypto engine for secure key storage and cryptographic operations. The Full-Speed USB Device interface connects to host PCs and mobile devices for FIDO2/CTAP2 or PIV authentication flows. The 64 KB ECC Flash fits FIDO2 firmware, USB HID stack, and crypto libraries, while the 8 KB RAM supports key material and authentication state. The extended -40 to +125 °C range supports consumer and industrial token form factors. Pair with a smart card contact interface (e.g., NXP TDA8029) or NFC controller for contactless tokens. Always follow FIDO Alliance and ISO 7816 specifications for production deployments.
Recommended
Connected Wearable Devices
Wearable devices such as fitness bands, smartwatches, and BLE notification peripherals benefit from the PIC24FJ64GB202-E/SP's XLP nanoamp sleep currents and Full-Speed USB for charging/data sync. The hardware crypto engine secures over-the-air firmware updates (OTA) and personal health data uploads. With 21 I/O pins and a 16-channel 10-bit ADC, the MCU interfaces with biometric sensors (heart rate, SpO2, temperature) while supporting I2C SPI buses for accelerometers and gyroscopes. The extended temperature grade supports wearable form factors exposed to body heat and outdoor exercise conditions. The 64 KB Flash fits BLE stack fragments, sensor fusion, and USB CDC firmware. Pair with a BLE module (e.g., RN4870) for wireless connectivity.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ64GB202-E/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ64GB202-I/SP | PIC24FJ128GB202-E/SP | PIC24FJ128GB202-I/SP | PIC24FJ64GB002-I/SP | PIC24FJ64GP202-E/SP |
|---|---|---|---|---|---|---|
| Package | 28-SPDIP (SP) | 28-SPDIP (SP) | 28-SPDIP (SP) | 28-SPDIP (SP) | 28-SPDIP (SP) | 28-SPDIP (SP) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 64 KB ECC | 64 KB ECC | 128 KB ECC | 128 KB ECC | 64 KB ECC | 64 KB ECC |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Hardware Crypto Engine | Yes (AES/DES/SHA) | Yes (AES/DES/SHA) | Yes (AES/DES/SHA) | Yes (AES/DES/SHA) | No (GB0 family) | No (GP family) |
| Operating Temperature | -40 °C to +125 °C | -40 °C to +85 °C | -40 °C to +125 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +125 °C |
| USB 2.0 | Full-Speed Host/Device/OTG | Full-Speed Host/Device/OTG | Full-Speed Host/Device/OTG | Full-Speed Host/Device/OTG | Full-Speed Host/Device/OTG | Full-Speed Host/Device/OTG |
| Core 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 |
| Param Match (%) | 100 | 95 | 90 | 90 | 80 | 80 |
Key Differentiators
- Integrated hardware crypto engine (AES/DES/SHA) at 16-bit MCU cost (vs PIC24FJ64GB002-I/SP)
- Extended temperature grade (-40 to +125 °C) for harsh environments (vs PIC24FJ64GB202-I/SP)
- Larger Flash option available in same 28-SPDIP footprint (vs PIC24FJ128GB202-E/SP)
Design Notes
Estimated: Active mode current at 32 MHz core and full peripheral usage is approximately 15-18 mA. Add a 100 nF + 10 µF decoupling pair within 5 mm of VDD/AVDD pins to suppress switching transients. For USB bus-powered designs, the VUSB pin requires a 220 nF capacitor to ground to stabilize the internal USB regulator. Sleep current in XLP modes is in the nanoamp range, making coin-cell operation feasible. Always include a bulk 47 µF capacitor on the upstream USB rail to meet USB inrush requirements.
Route USB D+ and D- as a 90-ohm differential pair with matched length and continuous ground reference. Keep total trace length under 50 mm to meet USB 2.0 Full-Speed signal integrity. Place the 12 MHz crystal within 5 mm of OSCI/OSCO pins with a guard ring connected to ground. Maintain analog and digital ground separation, joining at a single point near the AVSS/VSS pin. Add TVS diodes on USB connector lines (e.g., USBLC6-2SC6) and ESD protection on all external I/O.
Common pitfalls: (1) Forgetting the MCLR pull-up resistor (typically 10 kΩ) causes erratic reset behavior. (2) Configuring the crypto engine without enabling the proper peripheral clock disables AES acceleration silently. (3) Using the -I variant in environments above +85 °C risks latch-up or data corruption. (4) Failing to enable ECC Flash configuration bits eliminates the single-bit error correction feature. (5) Not programming the OSCCON register correctly prevents USB clock accuracy, causing enumeration failures. Always verify configuration bits in the MPLAB X IPE view before programming.
Estimated: USB Full-Speed signaling requires controlled impedance; FR4 stack-up should target 90-ohm differential with 45-ohm single-ended. Avoid stubs on D+/D- lines and use vias sparingly (max 2 per signal). For long cable runs (>3 m), add common-mode chokes on D+/D- to suppress EMI. Shield the USB connector housing to chassis ground through a ferrite bead for ESD immunity. If using OTG host mode, the VBUS voltage must be current-limited to 100 mA for low-power devices and 500 mA for high-power devices per USB 2.0 spec.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - the -E temperature grade is not the same as automotive qualification. For automotive applications, consider PIC24FJ family variants with explicit AEC-Q100 documentation.
