PIC24FJ64GB406-I/PT - 16-bit XLP MCU, 64KB Flash, USB OTG | Microchip
MPN: PIC24FJ64GB406-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.52 | $7.52 |
| 10 | $6.92 | $69.20 |
| 100 | $6.1 | $610.00 |
| 500 | $5.43 | $2,715.00 |
| 1,000 | $4.85 | $4,850.00 |
PIC24FJ64GB406-I/PT Overview
A PIC24F XLP microcontroller is a 16-bit modified Harvard RISC architecture MCU designed for ultra-low-power embedded applications. Microcontrollers in this class integrate CPU core, Flash program memory, SRAM, peripherals such as timers, ADC, communication interfaces, and increasingly specialized blocks like crypto engines and LCD drivers, all on a single die. The PIC24FJ64GB family sits at the intersection of low-power performance, USB connectivity, and security, making it a common choice for battery-powered consumer devices, secure peripherals, and cost-sensitive human-machine interface designs.
Key features include 64KB self-programmable Flash with 22K x 24 word organization, 8KB SRAM, hardware AES/SHA crypto engine for secure data handling, USB 2.0 Full-Speed OTG with integrated transceiver and PHY, a segmented LCD driver supporting up to 132 segments, nanoWatt XLP technology with sub-uA sleep currents, and rich analog peripherals including a 10/12-bit ADC and comparators. These specifications target designs where security, USB connectivity, and battery life converge.
The device implements Microchip's modified Harvard architecture with 16-bit wide instruction and data paths, 16 x 16-bit working registers, and a hardware multiply/divide engine. XLP technology combines deep-sleep modes (down to 20 nA typical retention), ultra-low-power RTCC, and on-chip voltage regulation to enable multi-year battery operation. The integrated crypto module accelerates AES-128/192/256 and SHA-1/SHA-256, eliminating the overhead of software cryptographic libraries.
Typical applications include secure USB peripherals (token, smart card readers), battery-powered medical devices such as glucose meters and wearables, secure IoT edge nodes with TLS/DTLS acceleration, industrial HMI panels with LCD readout, metering and electronic shelf labels, and consumer point-of-sale terminals requiring hardware-rooted security.
Design consideration: the USB OTG controller requires precise 48 MHz clocking; engineers should use the on-chip PLL with the system oscillator or an external crystal to meet USB Full-Speed timing. The segmented LCD driver supports internal charge pump operation for low-voltage panels but requires careful bias network design.
This page synthesizes current distributor pricing, drop-in alternatives within the PIC24FJ64GB family and cross-brand pin-compatible 16-bit MCUs, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC24FJ64GB406-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 PIC24FJ64GB406-I/PT (same form factor and footprint) — differing in ADC, Program Memory (Flash), Operating Temperature, Package, Core.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ128GB406-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ128GB406-I/MR
✅ Drop-In✓ In Stock
$3.55 / Unit
View Datasheet →PIC24FJ64GB004-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.3 / Unit
View Datasheet →PIC24FJ64GB106-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.18 / Unit
View Datasheet →PIC24FJ256GB406-I/MR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24FJ64GA406-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24FJ64GB406-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24F 16-bit RISC modified Harvard |
| Family | PIC24F XLP |
| Program Memory (Flash) | 64 KB (22K x 24) |
| Data Memory (SRAM) | 8 KB |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Operating Voltage Range | 2.0 V to 3.6 V |
| Hardware Crypto Module | AES/SHA (AES-128/192/256, SHA-1/SHA-256) |
| USB Interface | USB 2.0 Full-Speed OTG with on-chip transceiver and PHY |
| LCD Driver | Segmented LCD, up to 132 segments |
| ADC | 10/12-bit ADC |
| Operating Temperature | -40C to +85C (Industrial) |
| Package | 64-pin TQFP (PT) 10x10 mm |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC24FJ64GB406-I/PT 64-pin tqfp (pt) 10x10 mm Pin Configuration Guide
Pin configuration for PIC24FJ64GB406-I/PT (64-pin tqfp (pt) 10x10 mm package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for PIC24FJ64GB406-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC24FJ64GB406-I/PT is suitable for 6 applications: Secure USB Token / Smart Card Reader, Battery-Powered Medical Wearable, Industrial HMI with LCD Panel, Electronic Shelf Label / Retail Pricing, Secure IoT Edge Node, Point-of-Sale Terminal Accessory.
Secure USB Token / Smart Card Reader
The PIC24FJ64GB406's integrated AES-128/192/256 and SHA-1/SHA-256 hardware crypto engine accelerates secure session establishment while the USB 2.0 Full-Speed OTG controller with on-chip transceiver provides the device interface. With 64KB Flash for firmware and 8KB SRAM for session buffers, it can host TLS handshake logic without external companion chips. Per Microchip datasheet, the OTG controller supports host, device, and dual-role modes with SRP and HNP - ideal for token, smart card reader, and CCID-class peripherals where security and USB converge.
Recommended
Battery-Powered Medical Wearable
The XLP nanoWatt technology enables sub-uA deep-sleep currents below 20 nA retention, extending battery life to multi-year operation in wearables such as glucose meters and continuous monitors. The PIC24FJ64GB406's 16 MIPS throughput handles sensor fusion and BLE prep tasks while the segmented LCD driver directly drives glass without an external charge pump IC. Per Microchip datasheet, the wide 2.0V-3.6V VDD range supports single-cell Li-ion or coin-cell operation, critical for medical-grade miniaturized devices.
Recommended
Industrial HMI with LCD Panel
The PIC24FJ64GB406's segmented LCD controller drives up to 132 segments directly, eliminating external LCD driver ICs in industrial control panels, metering displays, and appliance HMI. With 16 MIPS of CPU throughput, it manages real-time keypad scanning, sensor acquisition via the 10/12-bit ADC, and serial communication to host controllers. Per Microchip datasheet, the charge pump supports low-voltage panel biasing and the 64-pin TQFP provides ample I/O for backlight PWM, buzzer control, and rotary encoder inputs common in industrial operator panels.
Recommended
Electronic Shelf Label / Retail Pricing
The XLP deep-sleep current combined with segmented LCD driving makes the PIC24FJ64GB406 ideal for battery-powered electronic shelf labels that must run 3-5 years on a coin cell. Per Microchip datasheet, the on-chip LCD charge pump supports 3V panel bias from depleted batteries, while the eXtreme Low Power run mode handles RF communication bursts in 802.15.4 or proprietary sub-GHz protocols. The 8KB SRAM buffers pricing updates and the 64KB Flash holds display fonts and RF stack without external memory.
Recommended
Secure IoT Edge Node
The integrated AES/SHA crypto engine in the PIC24FJ64GB406 enables hardware-rooted TLS/DTLS handshake acceleration for IoT edge nodes connecting to cloud services. Per Microchip datasheet, the USB OTG supports tethered provisioning while XLP run modes handle always-listening sensor sampling at sub-mA average current. The 16 MIPS CPU runs an RTOS-based MQTT or CoAP stack with hardware-backed certificate storage in Flash, eliminating external secure elements in cost-sensitive IoT designs.
Recommended
Point-of-Sale Terminal Accessory
The PIC24FJ64GB406's USB OTG host mode and hardware crypto support PIN pad accessories and EMV-compliant payment peripherals. Per Microchip datasheet, the on-chip 3.3V LDO powers external contactless readers while AES acceleration secures transaction data end-to-end. The 64KB Flash stores PCI PTS firmware modules and the industrial -40C to +85C temperature rating meets retail deployment requirements. Segmented LCD support provides transaction feedback without a separate display controller IC.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ64GB406-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ128GB406-I/PT | PIC24FJ128GB406-I/MR | PIC24FJ64GB004-I/PT | PIC24FJ64GB106-I/PT | PIC24FJ64GA406-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-pin TQFP (PT) 10x10 mm | 64-pin TQFP (PT) - same | 64-pin QFN (MR) - different | 64-pin TQFP (PT) - same | 64-pin TQFP (PT) - same | 64-pin TQFP (PT) - same |
| Program Memory (Flash) | 64 KB | 128 KB | 128 KB | 64 KB | 64 KB | 64 KB |
| SRAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Maximum CPU Speed | 32 MHz (16 MIPS) | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Hardware Crypto (AES/SHA) | Yes | Yes | Yes | No | No | No |
| USB OTG | Yes (USB 2.0 FS OTG) | Yes | Yes | No | Yes | No |
| Segmented LCD Driver | Yes (up to 132 segments) | Yes | Yes | Yes | Yes | Yes |
| 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 | 2.0 V to 3.6 V | 2.0 V to 3.6 V |
| Temperature Grade | Industrial -40C to +85C | Industrial | Industrial | Industrial | Industrial | Industrial |
Key Differentiators
- Integrated hardware AES/SHA crypto engine (vs PIC24FJ64GA406-I/PT)
- USB OTG with on-chip transceiver and PHY (vs PIC24FJ64GB004-I/PT)
- XLP nanoWatt technology (vs PIC24FJ128GB406-I/PT)
Design Notes
The PIC24FJ64GB406 operates from 2.0V to 3.6V and supports nanoWatt XLP sleep modes with retention current as low as 20 nA typical. Estimated: at 3.3V VDD with RTCC running and RAM retention, sleep current is approximately 1-2 uA depending on peripheral wake configuration. For battery life calculation, use the device IBAT specifications from the datasheet rather than calculated estimates.
Place the 32.768 kHz crystal for RTCC within 5 mm of the SOSC pins with a grounded guard ring to reduce coupling from digital switching. The USB D+/D- traces should be 90 ohm differential with length matching within 2 mm, and the VUSB pin requires a 0.47 uF decoupling capacitor as specified in the datasheet USB section. The segmented LCD segment and common traces should be routed away from high-frequency digital signals to prevent ghosting.
Do not skip the configuration bits programming - leaving the watchdog and low-voltage programming disabled can cause unpredictable behavior on first power-up. Per Microchip datasheet, the FSEC, FBSLIM, and FOSC configuration registers must be programmed before the crypto module and USB PLL will operate correctly. The 48 MHz USB clock must be locked before USB enumeration or the host will reject the device.
The hardware AES/SHA crypto engine operates on 16-byte blocks and can stall the DMA bus during long crypto operations. Estimated: an AES-256 block encrypt takes approximately 100-150 clock cycles, which is negligible but can impact real-time USB isochronous transfers if not prioritized. Use DMA for crypto data movement and consider buffering USB packets during crypto bursts.
Compliance Information
RoHS compliant per Microchip product page. Industrial temperature grade -40C to +85C. Not AEC-Q100 qualified; for automotive applications, Microchip offers PIC24F automotive-grade variants separately.
