PIC24FJ64GA705-I/PT - 16-bit 32MHz MCU 64KB Flash 48-TQFP
MPN: PIC24FJ64GA705-I/PT ✓ Hoạt độngPIC24FJ64GA705-I/PT Tóm tắt
A 16-bit microcontroller (MCU) is an embedded processor whose data path is 16 bits wide, providing higher arithmetic precision and richer peripheral integration than 8-bit parts while consuming less power than 32-bit Cortex-M devices in many real-time control applications. Within the broader semiconductor taxonomy, a 16-bit MCU sits between low-end 8-bit MCUs and mid-range 32-bit MCUs, and the PIC24F architecture is widely deployed in general-purpose embedded control, sensor interfacing, and human-machine-interface (HMI) designs. The PIC24FJ64GA705 family is offered in 28-, 44-, and 48-pin variants, allowing a single firmware base to scale across board sizes.
Key features of the PIC24FJ64GA705-I/PT include 64KB (22K x 24 instruction words) self-programmable Flash with ECC, 8KB SRAM, a 16-bit timer/counter bank, two I2C, two SPI, and up to three UART interfaces, plus a Parallel Master Port (PMP) for graphics or external memory expansion. The 12-bit ADC with 200 ksps throughput supports up to 14 channels, and three comparators with programmable reference generation are usable for analog event detection. A Direct Memory Access (DMA) controller with up to four channels offloads data movement between peripherals and RAM, freeing the CPU for application code.
The device operates from 2.0V to 3.6V and is rated for industrial temperatures of -40C to +85C. It supports 5V-tolerant digital inputs on selected pins, easing interfacing to legacy 5V logic. On-chip debugging and programming are available through Microchip's standard ICSP/ICD interfaces, and the part is supported by MPLAB X IDE, XC16 compiler, and MPLAB Code Configurator (MCC) for rapid peripheral initialization.
Typical applications include low-power IoT sensor nodes, capacitive-touch user interfaces, portable medical instrumentation, building automation controllers, and consumer HMI panels. The combination of eXtreme Low Power modes and CTMU makes the part especially suitable for battery-powered touch-button or slider designs.
When designing with this MCU, allocate one of the 48 pins to MCLR if in-system programming is required, and respect the analog and digital pinout separation documented in the datasheet. For capacitive touch, route CTMU pins with short, guarded traces and use the recommended touch library from Microchip.
This page synthesizes distributor pricing, same-brand TQFP-48 drop-in alternatives, and practical design notes not consolidated on the manufacturer datasheet landing page.
Bộ thay thế dễ dàng lắp đặt cho PIC24FJ64GA705-I/PT — 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 PIC24FJ64GA705-I/PT (cùng hình factor và footprint) — khác nhau ở Package, Program Memory (Flash), Operating Temperature, ADC, Core Architecture.
PIC24FJ128GA705-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ256GA705-I/M4
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ128GA704T-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ128GA610-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ256GA110T-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC24FJ64GA705-I/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC24F (16-bit modified Harvard) |
| Family | PIC24FJ64GA705 (eXtreme Low Power) |
| Program Memory (Flash) | 64 KB (22K x 24 instructions), ECC |
| Data Memory (SRAM) | 8 KB |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Supply Voltage (VDD) | 2.0 V to 3.6 V |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial, -I suffix) |
| ADC | 12-bit, up to 200 ksps, up to 14 channels |
| Comparators | 3 (with programmable reference) |
| CTMU | Charge Time Measurement Unit (touch / time measurement) |
| DMA Channels | 4 |
| Communication Interfaces | 2x I2C, 2x SPI, up to 3x UART |
| Parallel Master Port (PMP) | Yes |
| Timers | Multiple 16-bit timer/counter modules |
| Hộp | 48-pin TQFP (PT) 7x7 mm |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
| Programming/Debug | ICSP and ICD via MPLAB |
Hướng dẫn cấu hình chân PIC24FJ64GA705-I/PT 48-pin tqfp (pt) 7x7 mm
Cấu hình chân cho PIC24FJ64GA705-I/PT (48-pin tqfp (pt) 7x7 mm gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho PIC24FJ64GA705-I/PT.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
PIC24FJ64GA705-I/PT phù hợp cho 6 Áp dụngs: Battery-Powered IoT Sensor Node, Capacitive Touch User Interface, Industrial Control / Building Automation, Portable Medical / Health Monitoring, Consumer HMI / Small Display Controller, Low-Power Data Acquisition / Sensor Hub.
Battery-Powered IoT Sensor Node
The PIC24FJ64GA705-I/PT's eXtreme Low Power core with sub-microamp sleep currents and 32 MHz active performance makes it an ideal host for battery-powered IoT sensor nodes. The integrated 12-bit ADC at 200 ksps samples analog sensors directly, the DMA controller offloads data movement, and UART/I2C/SPI peripherals connect radios or sensors. The 48-pin TQFP package provides enough I/O to support multiple analog channels and a low-power radio module while remaining hand-solderable for prototyping. Compared to 32-bit Cortex-M0+ alternatives, the PIC24F typically delivers better active-mA/MIPS efficiency for periodic sensor reads followed by deep sleep.
Được đề xuất
Capacitive Touch User Interface
The on-chip Charge Time Measurement Unit (CTMU) gives the PIC24FJ64GA705-I/PT native hardware support for capacitive touch buttons, sliders, and proximity sensors. Microchip's mTouch touch library supports PCB-electrode designs directly without an external touch IC, reducing BOM cost and board area. The 14-channel ADC complements the touch subsystem by monitoring supply voltage, backlight current, or other analog housekeeping signals. With 64KB Flash, designers can store button-tuning parameters, gesture libraries, and a USB HID or I2C host interface in a single chip, and the 48-pin TQFP leaves ample I/O for LEDs, haptics, and a small TFT display.
Được đề xuất
Industrial Control / Building Automation
Industrial and building-automation controllers demand deterministic 16-bit performance, robust peripherals, and an industrial temperature rating - all delivered by the PIC24FJ64GA705-I/PT with its -40 C to +85 C operating range. The 12-bit ADC and three comparators handle analog sensor inputs such as temperature, pressure, and 4-20 mA loop interfaces, while the UART channels support RS-485 transceivers for Modbus or BACnet fieldbus connectivity. The Parallel Master Port (PMP) enables connection to small character or graphical LCDs for local HMI. Compared with 8-bit PIC16 alternatives, the 16 MIPS throughput allows simultaneous sensor scanning, communication stack processing, and HMI updates without dropping cycles.
Được đề xuất
Portable Medical / Health Monitoring
Portable medical and health-monitoring devices require low power consumption, accurate analog measurement, and reliable embedded control - a profile well matched by the PIC24FJ64GA705-I/PT. The 12-bit ADC at 200 ksps digitizes signals from pulse oximeter photodiodes, thermocouples, or weight-scale load cells, while the DMA engine reduces CPU load during continuous acquisition. The eXtreme Low Power sleep modes stretch battery life on wearable form factors, and the CTMU can be repurposed for body-impedance measurements. Note that medical designs typically require additional IEC 60601-1 system-level qualification, but the MCU's low-noise analog and deterministic interrupt latency simplify subsystem compliance.
Được đề xuất
Consumer HMI / Small Display Controller
The PIC24FJ64GA705-I/PT's Parallel Master Port (PMP) and 64KB Flash make it a cost-effective host for small TFT or character-LCD user interfaces in consumer appliances. The CTMU and ADC monitor front-panel capacitive touch, the UART/SPI peripherals connect to Wi-Fi or Bluetooth modules for cloud connectivity, and the 32 MHz core provides enough throughput to refresh a small QVGA display while handling control logic. The 48-pin TQFP exposes sufficient GPIO for LED indicators, keypads, and motor-control PWM channels, while keeping the package hand-solderable for low-volume appliance production.
Được đề xuất
Low-Power Data Acquisition / Sensor Hub
With 64KB ECC Flash, 8KB SRAM, and four DMA channels, the PIC24FJ64GA705-I/PT serves as a low-power data-acquisition hub that aggregates multiple analog and digital sensors, buffers samples, and forwards them over UART/SPI to a host processor. The 12-bit ADC with 14 channels scans sensor arrays, the comparators generate hardware triggers for time-critical events, and the CTMU supports accurate time-stamping of measurements. Compared to using a 32-bit Cortex-M0+ at the same MIPS rating, the PIC24F typically draws less active current, making the design suitable for solar- or energy-harvest-powered remote monitoring stations.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC24FJ64GA705-I/PT — 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 | PIC24FJ128GA705-I/PT | PIC24FJ256GA705-I/M4 | PIC24FJ128GA704T-I/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-pin TQFP (7x7 mm) | 48-pin TQFP (7x7 mm) | 48-pin TQFP (7x7 mm) | 48-pin TQFP (7x7 mm) |
| Program Flash | 64 KB | 128 KB | 256 KB | 128 KB |
| SRAM | 8 KB | 8 KB | 8 KB | 8 KB |
| Max CPU Speed | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) |
| Supply 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 |
| ADC | 12-bit, up to 14 channels | 12-bit, up to 14 channels | 12-bit, up to 14 channels | 12-bit, up to 13 channels |
| CTMU Touch Support | Yes | Yes | Yes | Yes |
| Industrial Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Bảo phân biệt quan trọng
- Highest-density drop-in upgrade within the GA705 die family at 48-pin TQFP (vsPIC24FJ128GA705-I/PT)
- eXtreme Low Power core outperforms general-purpose PIC24F GP parts in battery applications (vsPIC24FJ64GP205-I/PT)
- On-chip CTMU eliminates external touch ICs (vsPIC24FJ64GA702-I/MV)
Ghi chú thiết kế
Estimated: with VDD = 3.3V, CPU active at 32 MHz, all peripherals off, typical active current is around 8 mA and deep-sleep current drops below 1 uA. To maximize battery life, use Sleep mode between ADC conversions, drive unused pins as outputs low, and disable unused peripherals via the PMD registers. Always place a 0.1 uF decoupling capacitor as close as possible to each VDD/AVDD pin and a 10 uF bulk capacitor near the MCU. For ADC accuracy, add a ferrite bead between VDD and AVDD and decouple AVDD with 0.1 uF + 10 uF.
Allocate one pin as MCLR for in-system programming and debugging; do NOT tie MCLR directly to VDD without a pull-up or you will lose ICSP. Keep the ICSP clock and data traces short and away from switching signals. For CTMU touch electrodes, route the touch pin traces with a ground guard ring on both sides and keep them short (<50 mm) for stable capacitance readings. Maintain a continuous ground plane under the device for thermal dissipation and EMI suppression.
Do NOT confuse the -I/PT (industrial -40 C to +85 C, TQFP-48) suffix with -E/PT (extended -40 C to +125 C, TQFP-48) - both share the same TQFP-48 footprint but the E-grade runs hotter. Avoid leaving unused analog pins floating; tie them to either AVSS or AVDD to prevent shoot-through current in the ADC mux. When migrating from PIC24FJ64GA004 firmware, verify the 48-pin pinout differences - the GA705 adds pins for PMP and additional ADC channels that the GA004 does not have.
Thông tin tuân thủ
RoHS-compliant per Microchip product page. Industrial temperature grade -I supports -40 C to +85 C. For -40 C to +125 C extended range, order PIC24FJ64GA705-E/PT. AEC-Q100 qualification status is not published for this part - choose PIC24FJ64GA705-E/PT for automotive-style environmental profiles.
