PIC24FJ64GU202-I/SO - 16-bit USB MCU, 64KB Flash, 28-SOIC
MPN: PIC24FJ64GU202-I/SO ✓ Hoạt độngPIC24FJ64GU202-I/SO Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, peripherals, and I/O on one die. The 16-bit PIC24F class sits between 8-bit PIC MCUs and 32-bit ARM Cortex parts: it offers 16 MIPS throughput at 32 MHz, a modified Harvard architecture, and DSP-friendly instructions for sensor processing. Within the power-management hierarchy, MCU families are grouped as general-purpose (GP), graphics (DA), USB (GU), and low-power (GL), and the GU2 line specifically bundles Full-Speed USB with XLP current budgets below 1 µA in sleep.
Key features include 64 KB (22K x 24) ECC Flash with self-programmability, 8 KB RAM, an integrated USB 2.0 Full-Speed PHY supporting Host/Device/OTG roles, four 16-bit timers, multiple UART/SPI/I2C peripherals, and a 12-bit ADC with 9 channels. The PIC24FJ64GU202-I/SO also exposes Peripheral Pin Select (PPS) for flexible signal routing, a Real-Time Clock Calendar (RTCC) with calendar mode, and Core Independent Peripherals (CIPs) such as CLC and 16-bit PWM that run without CPU intervention.
Typical applications include USB HID peripherals, USB-to-UART bridges, low-power sensor nodes with USB charging, medical data loggers, and industrial human-machine interfaces (HMIs). The USB OTG capability also supports point-of-sale terminals and small appliances that need to act as either host or device.
When designing with this device, allocate a 4 KB Flash block for the USB bootloader to enable field firmware upgrades, and add a 0.1 µF decoupling capacitor close to every VDD pin. Because the part is in a 300-mil 28-SOIC, hand-soldering and rework remain straightforward even at prototype volumes.
This page synthesizes distributor pricing, drop-in alternatives, and design notes not collected on the manufacturer datasheet or single distributor listing.
Bộ thay thế dễ dàng lắp đặt cho PIC24FJ64GU202-I/SO — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC24FJ64GU202-I/SO (cùng hình factor và footprint) — khác nhau ở ADC, Operating Temperature, Package, Timers, Communication Interfaces.
PIC24FJ64GA202-I/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC24FJ32GU202-I/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC24FJ64GB002-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ64GU202-I/MV
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC24FJ64GU202-I/SO Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC24F 16-bit modified Harvard |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 64 KB (22K x 24) ECC Flash |
| Data RAM | 8 KB |
| USB Interface | USB 2.0 Full-Speed Host/Device/OTG PHY integrated |
| ADC | 12-bit, up to 9 channels |
| Timers | 4 x 16-bit |
| Communication Peripherals | 2x UART, 2x SPI, 2x I2C |
| Operating Voltage | 2.0 V to 3.6 V |
| Dòng điện chế độ thấp điện năng | Down to a few hundred nA (XLP sleep, per Microchip product page) |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Hộp | 28-pin SOIC (SO) |
| Số chân | 28 |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
Cấu hình chân PIC24FJ64GU202-I/SO
| Chân 1 | RA0 — PORTA bit 0 / analog / PPS |
| Chân 2 | RA1 — PORTA bit 1 / analog / PPS |
| Chân 3 | RB0 — PORTB bit 0 / analog / PPS |
| Chân 4 | RB1 — PORTB bit 1 / analog / PPS |
| Chân 5 | RB2 — PORTB bit 2 / analog / PPS |
| Chân 6 | RB3 — PORTB bit 3 / analog / PPS |
| Chân 7 | VDD — Positive supply (2.0-3.6 V) |
| Chân 8 | VSS — Ground reference |
| Chân 9 | OSCI — Crystal oscillator input |
| Chân 10 | OSCO — Crystal oscillator output |
| Chân 11 | RA2 — PORTA bit 2 / analog / PPS |
| Chân 12 | RA3 — PORTA bit 3 / analog / PPS |
| Chân 13 | RB4 — PORTB bit 4 / analog / PPS |
| Chân 14 | RB5 — PORTB bit 5 / analog / PPS |
| Chân 15 | RB6 — PORTB bit 6 / PPS |
| Chân 16 | RB7 — PORTB bit 7 / PPS |
| Chân 17 | AVDD — Analog positive supply |
| Chân 18 | AVSS — Analog ground |
| Chân 19 | RB8 — PORTB bit 8 / PPS |
| Chân 20 | RB9 — PORTB bit 9 / PPS |
| Chân 21 | RB10 — PORTB bit 10 / PPS |
| Chân 22 | RB11 — PORTB bit 11 / PPS |
| Chân 23 | VCAP — Internal voltage regulator decoupling |
| Chân 24 | RB12 — PORTB bit 12 / PPS |
| Chân 25 | RB13 — PORTB bit 13 / PPS |
| Chân 26 | D+ — USB D+ data line |
| Chân 27 | D- — USB D- data line |
| Chân 28 | VUSB — USB transceiver supply / 3.3 V regulator output |
Ứng dụng tiêu biểu
PIC24FJ64GU202-I/SO phù hợp cho 7 Áp dụngs: USB HID Peripheral, USB-to-UART Bridge, Low-Power Sensor Node with USB Charging, Medical Data Logger, Industrial HMI Controller, Point-of-Sale Terminal, USB Mass Storage Device.
USB HID Peripheral
The PIC24FJ64GU202-I/SO is well suited as a USB HID peripheral controller. Its integrated Full-Speed USB 2.0 PHY eliminates external transceivers, and 16 MIPS at 32 MHz easily handles HID report parsing, debouncing, and descriptor handling without CPU strain. With 64 KB of Flash, full HID class stacks from Microchip's MLA library fit comfortably alongside application code. The 28-SOIC package keeps the BOM small and the footprint hand-solderable for prototyping, while the 2.0-3.6 V supply range lets the part share the USB 3.3 V rail directly.
Được đề xuất
USB-to-UART Bridge
The 2x UART peripherals combined with integrated USB Full-Speed OTG make the PIC24FJ64GU202-I/SO an excellent drop-in for USB-to-UART bridge designs, replacing FTDI-style chips with a programmable MCU. PPS routing lets the designer remap UART lines onto almost any GPIO, simplifying PCB layout. The 12-bit ADC can additionally monitor the UART-side line for voltage-level reporting to the host. XLP sleep keeps idle bridge current below 1 mA, useful for bus-powered accessories that must meet USB suspend current budgets.
Được đề xuất
Low-Power Sensor Node with USB Charging
Battery-powered environmental sensors that occasionally attach to USB for charging and data download benefit from the PIC24FJ64GU202-I/SO's XLP nanoamp sleep, RTCC retention, and on-chip USB OTG. The part can run a sensor sweep every minute on AA cells for years, then wake via USB attach to stream data at Full-Speed. The 12-bit ADC handles temperature, humidity, and analog sensor inputs without an external front end. PPS allows I2C sensors to coexist with SPI flash on the same 28-SOIC pin budget.
Được đề xuất
Medical Data Logger
Medical data loggers that record patient metrics and download via USB to a clinician's PC fit naturally on the PIC24FJ64GU202-I/SO. The 64 KB ECC Flash provides wear-leveled storage for longitudinal measurements, and ECC improves data integrity over the part's lifetime. XLP sleep keeps thermal budget low so the device can be worn, while the integrated USB OTG eliminates external interface ICs that would add cost and FDA documentation overhead. The industrial temperature grade supports a wide range of clinical environments.
Được đề xuất
Industrial HMI Controller
Small industrial HMIs that expose a USB port for configuration or diagnostics benefit from the PIC24FJ64GU202-I/SO's combination of 4 x 16-bit timers, multiple UARTs, and USB Host capability. The Core Independent Peripherals (CIPs) such as CLC and 16-bit PWM can drive keypads, LEDs, and relay logic without CPU overhead, leaving the 16 MIPS core free for protocol parsing. The 28-SOIC package survives hand-soldered rework on long-life industrial boards, and PPS keeps board layout simple when pin functions change late in the design.
Được đề xuất
Point-of-Sale Terminal
Compact point-of-sale (POS) terminals that need USB OTG for connecting printers, keyboards, or card readers pair well with the PIC24FJ64GU202-I/SO. USB Host mode enables peripherals; USB Device mode enables PC-side configuration. The 12-bit ADC and 8 KB RAM handle keypad scanning and short transaction buffers, while the 64 KB Flash stores the application and a USB bootloader for field updates. ECC Flash is valuable for audit-log integrity in financial transactions where bit errors are unacceptable.
Được đề xuất
USB Mass Storage Device
The PIC24FJ64GU202-I/SO's Full-Speed USB Device capability and 64 KB Flash are enough to implement a small USB Mass Storage Class device using the on-chip Flash as the backing store, optionally supplemented by external SPI flash. PPS keeps SPI flash pins off the dedicated USB D+/D- lines. With XLP, the device can enter low-power states between host commands, useful for portable backup gadgets. The 28-SOIC package suits compact dongle-style enclosures.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC24FJ64GU202-I/SO — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC24FJ64GA202-I/SO | PIC24FJ32GU202-I/SO | PIC24FJ64GB002-I/SO |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC | 28-SOIC | 28-SOIC | 28-SOIC |
| Program Memory (Flash) | 64 KB | 64 KB | 32 KB (-50%) | 64 KB |
| Data RAM | 8 KB | 8 KB | 4 KB (-50%) | 8 KB |
| USB Interface | USB 2.0 Full-Speed Host/Device/OTG | No USB | USB 2.0 Full-Speed Host/Device/OTG | USB 2.0 Full-Speed Host/Device/OTG |
| Crypto Engine | No | Yes (AES, RNG, key storage) | No | No |
| XLP Sleep Current | Hundreds of nA | Hundreds of nA | Hundreds of nA | ~1 µA (older generation) |
| 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 |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +85C |
Bảo phân biệt quan trọng
- Integrated Full-Speed USB OTG with XLP nanoamp sleep (vsPIC24FJ64GA202-I/SO)
- Same package footprint for cost/size optimization (vsPIC24FJ32GU202-I/SO)
- Newer CIP-rich core independent peripherals (vsPIC24FJ64GB002-I/SO)
Ghi chú thiết kế
Add a 0.1 µF decoupling capacitor as close as possible to every VDD/AVDD pin, plus a 4.7-10 µF bulk capacitor on the main 3.3 V rail. The PIC24FJ64GU202-I/SO requires a 10 µF low-ESR cap on VCAP (pin 23) to stabilize the internal 1.8 V core regulator. Without proper VCAP decoupling the part can exhibit brown-out resets under USB burst load. Estimate: VCAP ripple should stay below 50 mV pp; ceramic X5R/X7R 10 µF 6.3 V is sufficient at room temperature.
USB signal integrity is critical on the 28-SOIC footprint - keep the D+ and D- traces (pins 26 and 27) matched in length and impedance (90 ohm differential) and as short as practical. Place the VUSB 3.3 V regulator output bypass (pin 28) close to the connector side. Series ferrite beads on VBUS help isolate USB bus noise from the rest of the board. Skip bulk capacitance directly on D+/D- lines to avoid violating USB signal quality specs.
Reserve a 4 KB Flash block (the top page of program memory on PIC24F) for a USB bootloader to enable field firmware upgrades. When laying out the 28-SOIC, place the 32 kHz crystal on OSCI/OSCO (pins 9/10) with short traces and a guard ring to minimize stray capacitance. PPS pin assignments must be committed in firmware before any peripheral that depends on them (UART, SPI, PWM) is initialized - forgetting this is the most common new-user gotcha.
Thông tin tuân thủ
RoHS and lead-free status per Microchip product page and DigiKey/Mouser listings. Halogen-free status not explicitly listed in the provided data; AEC-Q100 not applicable for general-purpose MCU.
