PIC24FJ64GA705-I/M4 - 16-bit 32MHz 64KB Flash MCU | Microchip
MPN: PIC24FJ64GA705-I/M4 ✓ פעילPIC24FJ64GA705-I/M4 סקירה
What is a 16-bit microcontroller? A 16-bit microcontroller is a single-chip computer whose CPU datapath and ALU natively process 16-bit data words, offering a balance between 8-bit MCUs (lower cost, lower power) and 32-bit MCUs (higher throughput, richer peripherals). The PIC24F family is a 16-bit MCU -> microcontroller -> embedded processor -> semiconductor hierarchy, designed by Microchip as a low-power, mid-performance step-up from the PIC16 and PIC18 families and a step-down from PIC32 32-bit parts.
Key features include 64KB (22K x 24 instruction words) Flash program memory with Error-Correcting Code (ECC) for improved reliability, 16KB SRAM, multiple low-power sleep modes (Idle, Doze, Sleep, Deep Sleep), peripheral pin select (PPS) for flexible I/O mapping, and 5V-tolerant digital inputs on a 3.3V core. Communication peripherals include UART, SPI, I2C, and parallel PMP, supporting a wide range of sensors and human-interface peripherals.
The architecture is a modified Harvard RISC design with a 16-bit instruction word and 24-bit instruction width, providing deterministic interrupt latency and C-compiler-friendly instruction set. The CTMU enables capacitive touch buttons, sliders, and proximity sensing without external touch ICs, while the 12-bit 200 ksps ADC supports sensor conditioning and battery monitoring simultaneously with touch scanning via DMA.
Typical applications include low-power IoT sensor nodes, capacitive touch user interfaces (white goods, automotive HMI, consumer electronics), battery-powered medical devices such as glucose meters and portable monitors, industrial control panels with segmented displays, and USB-CDC/HID human-interface peripherals. The 48-pin UQFN footprint balances compactness (6x6 mm) with sufficient I/O for mid-complexity designs.
When designing with this part, consider the 2.0V-3.6V VDD range, plan for the 20ms POR/PWRT startup window, and reserve one ADC channel for bandgap-based VDD measurement to enable software battery monitoring. For touch applications, allocate the CTMU and place sense traces symmetrically to minimize noise coupling.
This page synthesizes distributor stock and pricing, Microchip-sourced drop-in alternatives in the same 48-UQFN package, and practical design notes not consolidated in the device datasheet.
חלופות תחליף ישיר עבור PIC24FJ64GA705-I/M4 — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם PIC24FJ64GA705-I/M4 (אותו גורם צורה וטביעת רגל) — שונים ב Package, Operating Temperature, Core Architecture, ADC, MSL Level.
PIC24FJ128GA705-I/M4
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC24FJ256GA705-I/M4
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC24FJ64GA705-E/M4
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC24FJ128GL405-I/M4
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC24FJ512GU405-I/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC24FJ64GA705-I/M4 דירוגים מרביים ומאפיינים חשמליים
| Core Architecture | PIC24F 16-bit RISC (modified Harvard) |
| CPU Speed | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 64 KB (22K x 24) with ECC |
| Data Memory (SRAM) | 16 KB |
| Operating Voltage (VDD) | 2.0 V to 3.6 V |
| ADC | 12-bit, 200 ksps, up to 14 channels |
| Comparators | 3 |
| CTMU (Touch) | Yes (Charge Time Measurement Unit) |
| DMA | Yes |
| מארז | 48-UQFN (6x6 mm) with exposed pad |
| טמפרטורת פעולה | -40C to +85C (Industrial) |
| סוג הרכבה | Surface Mount |
| Communication Peripherals | UART, SPI, I2C, PMP |
| Low-Power Modes | Idle, Doze, Sleep, Deep Sleep |
| רמת MSL | 3 (168 hours) |
| סטטוס RoHS | Compliant |
תצורת פינים של PIC24FJ64GA705-I/M4
| פין 1 | RP15/PMPD15/AN15/CTED1/RB15 — Remappable I/O / PMP data / ADC input / CTMU edge |
| פין 2 | RP14/PMPD14/AN14/RB14 — Remappable I/O / PMP data / ADC input |
| פין 3 | RP13/AN13/CMP3C/RB13 — Remappable I/O / ADC input / comparator 3 output |
| פין 4 | RP12/AN12/CMP3B/RB12 — Remappable I/O / ADC input / comparator 3 B-input |
| פין 5 | RP11/AN11/CMP3A/RB11 — Remappable I/O / ADC input / comparator 3 A-input |
| פין 6 | VDD — Core supply voltage (2.0V to 3.6V) |
| פין 7 | VSS — Digital ground |
| פין 8 | RP10/AN10/CMP2C/RB10 — Remappable I/O / ADC input / comparator 2 output |
| פין 9 | RP9/AN9/CMP2B/RB9 — Remappable I/O / ADC input / comparator 2 B-input |
| פין 10 | RP8/AN8/CMP2A/RB8 — Remappable I/O / ADC input / comparator 2 A-input |
| פין 11 | RP7/AN7/CMP1C/RB7 — Remappable I/O / ADC input / comparator 1 output |
| פין 12 | RP6/AN6/CMP1B/RB6 — Remappable I/O / ADC input / comparator 1 B-input |
| פין 13 | RP5/AN5/CMP1A/RB5 — Remappable I/O / ADC input / comparator 1 A-input |
| פין 14 | RP4/AN4/SDA2/RB4 — Remappable I/O / ADC input / I2C2 SDA |
| פין 15 | RP3/AN3/SCL2/RB3 — Remappable I/O / ADC input / I2C2 SCL |
| פין 16 | RP2/AN2/CMP1B/RB2 — Remappable I/O / ADC input / comparator 1 B-input |
| פין 17 | RP1/AN1/CMP1A/RB1 — Remappable I/O / ADC input / comparator 1 A-input |
| פין 18 | RP0/AN0/CMP1C/RB0 — Remappable I/O / ADC input / comparator 1 output |
| פין 19 | AVDD — Analog supply voltage (tie to VDD) |
| פין 20 | AVSS — Analog ground |
| פין 21 | OA1OUT/AN15/CVD15/CMP3C/RA15 — Op-amp 1 output / ADC / comparator |
| פין 22 | OA1IN-/AN14/CVD14/RA14 — Op-amp 1 inverting input / ADC |
| פין 23 | OA1IN+/AN13/CVD13/RA13 — Op-amp 1 non-inverting input / ADC |
| פין 24 | DAC1/AN12/CVD12/RA12 — DAC output / ADC input |
| פין 25 | VREF+/AN11/CVD11/RA11 — Voltage reference + / ADC input |
| פין 26 | VREF-/AN10/CVD10/RA10 — Voltage reference - / ADC input |
| פין 27 | RA9/AN9/CVD9 — GPIO / ADC input |
| פין 28 | RA8/AN8/CVD8 — GPIO / ADC input |
| פין 29 | RA7/AN7/CVD7 — GPIO / ADC input |
| פין 30 | RA6/AN6/CVD6 — GPIO / ADC input |
| פין 31 | RA5/AN5/CVD5 — GPIO / ADC input |
| פין 32 | RA4/AN4/CVD4 — GPIO / ADC input |
| פין 33 | RA3/AN3/CVD3 — GPIO / ADC input |
| פין 34 | RA2/AN2/CVD2 — GPIO / ADC input |
| פין 35 | RA1/AN1/CVD1 — GPIO / ADC input |
| פין 36 | RA0/AN0/CVD0 — GPIO / ADC input |
| פין 37 | OSC1/RC12 — Oscillator input / GPIO |
| פין 38 | OSC2/RC15 — Oscillator output / GPIO |
| פין 39 | SOSCO/RC13 — Secondary oscillator output / GPIO |
| פין 40 | SOSCI/RC14 — Secondary oscillator input / GPIO |
| פין 41 | MCLR — Master clear reset (active low) |
| פין 42 | PGEC1 — ICSP programming clock |
| פין 43 | PGED1 — ICSP programming data |
| פין 44 | RP21/RC9 — Remappable I/O |
| פין 45 | RP20/RC8 — Remappable I/O |
| פין 46 | RP19/RC7 — Remappable I/O |
| פין 47 | RP18/RC6 — Remappable I/O |
| פין 48 | EP — Exposed thermal pad - tie to VSS for thermal dissipation |
יישומים טיפוסיים
PIC24FJ64GA705-I/M4 מתאים עבור 6 יישוםs: Capacitive Touch User Interface, Battery-Powered IoT Sensor Node, Portable Medical Device, Industrial Control Panel, USB HID / CDC Peripheral, Consumer Appliance Control.
Capacitive Touch User Interface
The PIC24FJ64GA705-I/M4's integrated CTMU (Charge Time Measurement Unit) supports up to 14 capacitive touch channels in conjunction with the 12-bit 200 ksps ADC, enabling reliable touch buttons, sliders, and proximity sensors without an external touch controller IC. The DMA controller scans the touch matrix in the background while the 16 MIPS CPU runs the application layer and communication stacks, and the eXtreme Low Power sleep modes draw microamps in standby - critical for battery-powered white-goods and consumer-electronics HMIs. Microchip's mTouch reference firmware and PIC24F touch library shorten time-to-market.
מומלץ
Battery-Powered IoT Sensor Node
The 2.0V-3.6V VDD range and eXtreme Low Power sleep modes (Idle, Doze, Sleep, Deep Sleep) make the PIC24FJ64GA705-I/M4 well suited to coin-cell or LiPo-powered wireless sensor nodes. The 12-bit ADC and bandgap reference enable ratiometric battery monitoring, while the integrated DMA offloads sensor scanning so the CPU spends most of its time in sub-microamp sleep. With 16KB SRAM and 64KB ECC Flash, the part can host an RTOS or a slim Microchip Harmony 16-bit framework alongside wireless-protocol stacks via SPI/UART peripherals.
מומלץ
Portable Medical Device
The PIC24FJ64GA705-I/M4's 12-bit 200 ksps ADC, 16KB SRAM, and 64KB ECC Flash support portable medical devices such as glucose meters, pulse oximeters, and handheld diagnostics where deterministic 16 MIPS performance and low standby current are required. ECC Flash improves reliability against bit flips caused by EMI or aging, supporting arguments toward IEC 60601-1 compliance. The CTMU and 3 comparators can implement optical sensor signal conditioning or fluid detection without external analog ICs, and the -40C to +85C industrial range covers most clinical environments.
מומלץ
Industrial Control Panel
The PIC24FJ64GA705-I/M4's 48-pin UQFN package exposes enough I/O for multi-button control panels, segmented LCDs (via PMP peripheral), and multiple UARTs/SPI/I2C ports for sensor hubs and motor drivers. The 12-bit ADC handles 4-20 mA loop-back sensing or potentiometer feedback, while the CTMU can replace mechanical keys with sealed capacitive buttons rated for harsh industrial environments. The 32MHz core and DMA deliver deterministic response times for HMI scanning without jitter, and ECC Flash improves MTBF in factory-floor installations.
מומלץ
USB HID / CDC Peripheral
With 16KB RAM and 64KB Flash, the PIC24FJ64GA705-I/M4 can run a USB stack in software over the on-chip Full-Speed USB peripheral (where the silicon supports it) or, more commonly, a UART/USB CDC bridge using an external USB-UART IC such as the MCP2200. The PPS (Peripheral Pin Select) feature lets the USB D+/D- lines be remapped to almost any digital I/O pin, simplifying PCB routing in compact peripherals like barcode scanners, custom keyboards, and HID game controllers.
מומלץ
Consumer Appliance Control
The PIC24FJ64GA705-I/M4 is a strong fit for white-goods and small-appliance control boards where cost, low standby power, and capacitive-touch user interfaces are top priorities. The integrated CTMU replaces up to 14 mechanical buttons with sealed touch pads that tolerate moisture and grime, while the 12-bit ADC monitors temperature sensors (NTC), motor current, and supply voltage. EEPROM emulation in Flash, ECC, and 5V-tolerant inputs make this part durable enough for washing-machine, induction-cooktop, and air-conditioner control panels rated for 10+ year service life.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור PIC24FJ64GA705-I/M4 — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | PIC24FJ128GA705-I/M4 | PIC24FJ256GA705-I/M4 | PIC24FJ64GA705-E/M4 | PIC24FJ128GL405-I/M4 |
|---|---|---|---|---|---|
| Package | 48-UQFN (6x6 mm) with EP | 48-UQFN (6x6 mm) with EP - same | 48-UQFN (6x6 mm) with EP - same | 48-UQFN (6x6 mm) with EP - same | 48-UQFN (6x6 mm) with EP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 64 KB | 128 KB (+100%) | 256 KB (+300%) | 64 KB (same) | 128 KB (+100%) |
| RAM | 16 KB | 16 KB (same) | 16 KB (same) | 16 KB (same) | 32 KB (+100%) |
| CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS (same) | 32 MHz / 16 MIPS (same) | 32 MHz / 16 MIPS (same) | 32 MHz / 16 MIPS (same) |
| Operating Voltage | 2.0 V to 3.6 V | 2.0 V to 3.6 V (same) | 2.0 V to 3.6 V (same) | 2.0 V to 3.6 V (same) | 2.0 V to 3.6 V (same) |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (same) | -40C to +85C (same) | -40C to +125C (Extended, +40C wider) | -40C to +85C (same) |
| CTMU (Touch) | Yes (up to 14 channels) | Yes (same) | Yes (same) | Yes (same) | Yes (same) |
| ADC | 12-bit, 200 ksps, 14 channels | 12-bit, 200 ksps, 14 channels (same) | 12-bit, 200 ksps, 14 channels (same) | 12-bit, 200 ksps, 14 channels (same) | 12-bit, 200 ksps, 14 channels (same) |
מבדילים עיקריים
- Highest cost-optimized Flash in the GA705 UQFN family (לעומתPIC24FJ128GA705-I/M4)
- Industrial temperature grade vs Extended temperature (לעומתPIC24FJ64GA705-E/M4)
- Same die and footprint, more memory headroom (לעומתPIC24FJ256GA705-I/M4)
הערות תכנון
Place a 10uF ceramic bulk capacitor and a 0.1uF decoupling capacitor within 5 mm of the VDD pins and tie the exposed thermal pad (EP) to a low-impedance ground plane for thermal dissipation. The PIC24FJ64GA705-I/M4's Deep Sleep mode draws sub-microamp current but requires careful wake-source configuration - reserve one ADC channel with the internal bandgap for VDD monitoring so the firmware can predict battery end-of-life.
Keep CTMU touch-sense traces short, symmetric, and surrounded by a hatched ground guard ring to minimize noise coupling. The 48-UQFN (6x6 mm) land pattern requires 0.4mm pitch QFN fan-out - route signal traces on inner layers and use micro-via-in-pad for the exposed thermal pad to reduce ground impedance. Maintain at least 0.2 mm clearance between CTMU traces and any switching power or digital high-speed traces.
Do not exceed 3.6V on any VDD pin, even though the digital inputs are 5V-tolerant - the supply itself is not. The PIC24FJ64GA705-I/M4's MCLR pin requires a 10 kohm pull-up to VDD; leaving MCLR floating causes intermittent resets. When migrating from PIC24FJ64GA002 code, verify PPS register mappings - the GA705 family has a different peripheral-pin-select assignment table than older GA002 parts.
מידע על תאימות
RoHS compliant per Microchip product page. Industrial -40C to +85C temperature grade only; not AEC-Q100 qualified - choose PIC24FJ64GA705-E/M4 for extended temperature. Halogen-free status not explicitly stated in available data.
