PIC24FJ512GL405-I/M4 - 512KB Flash 16-bit MCU | Microchip
MPN: PIC24FJ512GL405-I/M4 ✓ פעילPIC24FJ512GL405-I/M4 סקירה
A microcontroller (MCU) is a single-chip processor that integrates a CPU core, program memory (Flash), data memory (SRAM), and a rich set of on-chip peripherals such as timers, ADC, communication controllers, and GPIOs. Within the broader taxonomy, the PIC24FJ512GL405 belongs to the 16-bit MCU tier, positioned above 8-bit AVR/PIC16 parts and below 32-bit Cortex-M/Arm parts. It is optimized for low-power, mixed-signal embedded designs where deterministic interrupt response and rich CIPs (Core Independent Peripherals) reduce CPU load.
Key features include hardware crypto (AES, SHA) and true RNG for secure boot, dual-partition Flash enabling live OTA firmware swap with zero downtime, an integrated segmented LCD driver up to 488 segments, USB 2.0 full-speed with on-chip transceiver, and Microchip's eXtreme Low-Power (XLP) technology that drops run current to under 1 µA in deep sleep. Twelve CIPs run autonomously from the CPU, allowing event-driven designs with minimal firmware overhead.
The architecture is a Modified Harvard 16-bit core with hardware multiply/divide, a 24-bit instruction word, and a 32 KB RAM with DMA. Its on-chip peripherals include multiple UART/SPI/I2C, 12-bit ADC, comparators, PWM, RTCC, and a charge time measurement unit (CTMU). The Dual Partition Flash layout lets one partition run while the other is reprogrammed, then boot-swap for rollback-safe OTA.
Typical applications include secure IoT edge nodes with OTA firmware update, USB-CDC medical and industrial instrumentation, segment-LCD thermostats and metering HMIs, low-power wireless sensor hubs, and battery-backed home automation panels. The 48-UQFN footprint suits space-constrained PCBs.
When designing, allocate the USB D+/D- traces as a 90 Ω differential pair and place the 48-UQFN exposed pad on a continuous ground pour for thermal and EMI performance. Verify OTP lock bits and Flash partition configuration in MPLAB X IDE before production signing.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
חלופות תחליף ישיר עבור PIC24FJ512GL405-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 PIC24FJ512GL405-I/M4 (אותו גורם צורה וטביעת רגל) — שונים ב Family, LCD Controller, Package, USB, ADC.
PIC24FJ512GU405-I/M4
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC24FJ256GU405-I/M4
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
PIC24FJ512GL405-I/M4 דירוגים מרביים ומאפיינים חשמליים
| Product Type | 16-bit Microcontroller (MCU) |
| Core Architecture | PIC24F (Modified Harvard, 16-bit) |
| Family | PIC24FJ GL4 |
| Program Memory (Flash) | 512 KB (Dual Partition) |
| ECC Flash | 256 KB (with error correction) |
| SRAM | 32 KB |
| CPU Speed | 32 MHz (16 MIPS) |
| Operating Voltage | 2.0 V to 3.6 V |
| טמפרטורת פעולה | -40 °C to +85 °C (Industrial) |
| USB | USB 2.0 Full-Speed (12 Mbps), on-chip transceiver |
| LCD Controller | Segmented LCD, up to 488 segments |
| מארז | 48-UQFN (6x6 mm) |
| ADC | 12-bit, multi-channel |
| Crypto Accelerator | AES, SHA, True RNG |
| Core Independent Peripherals (CIPs) | Yes (12x CIP) |
| סוג הרכבה | Surface Mount |
| סטטוס RoHS | Compliant |
| Programming/Debug | ICSP via PGECx/PGEDx pairs |
תצורת פינים של PIC24FJ512GL405-I/M4
| פין 1 | RA0 — Digital I/O / analog input |
| פין 2 | RA1 — Digital I/O / analog input |
| פין 3 | RA2 — Digital I/O / analog input |
| פין 4 | RA3 — Digital I/O / analog input |
| פין 5 | VDD — Positive supply (2.0-3.6 V) |
| פין 6 | VSS — Ground reference |
| פין 7 | RB0 — Digital I/O / PGED1 programming data |
| פין 8 | RB1 — Digital I/O / PGEC1 programming clock |
| פין 9 | RB2 — Digital I/O |
| פין 10 | RB3 — Digital I/O |
| פין 11 | RB4 — Digital I/O |
| פין 12 | RB5 — Digital I/O |
| פין 13 | RB6 — Digital I/O |
| פין 14 | RB7 — Digital I/O |
| פין 15 | RC0 — Digital I/O |
| פין 16 | RC1 — Digital I/O |
| פין 17 | RC2 — Digital I/O |
| פין 18 | RC3 — Digital I/O / SDA1 |
| פין 19 | RC4 — Digital I/O / SCL1 |
| פין 20 | VSS — Ground reference |
| פין 21 | RC5 — Digital I/O |
| פין 22 | RC6 — Digital I/O / TX1 |
| פין 23 | RC7 — Digital I/O / RX1 |
| פין 24 | RC8 — Digital I/O |
| פין 25 | RC9 — Digital I/O |
| פין 26 | D+ — USB D+ (differential data) |
| פין 27 | D- — USB D- (differential data) |
| פין 28 | VBUS — USB VBUS sense input |
| פין 29 | VUSB — USB internal transceiver supply |
| פין 30 | RD0 — Digital I/O |
| פין 31 | RD1 — Digital I/O |
| פין 32 | RD2 — Digital I/O |
| פין 33 | RD3 — Digital I/O |
| פין 34 | RD4 — Digital I/O |
| פין 35 | RD5 — Digital I/O |
| פין 36 | RD6 — Digital I/O |
| פין 37 | RD7 — Digital I/O |
| פין 38 | RE0 — Digital I/O |
| פין 39 | RE1 — Digital I/O |
| פין 40 | RE2 — Digital I/O |
| פין 41 | RE3 — Digital I/O |
| פין 42 | RF0 — Digital I/O / SEG/LCD driver |
| פין 43 | RF1 — Digital I/O / SEG/LCD driver |
| פין 44 | RF2 — Digital I/O / SEG/LCD driver |
| פין 45 | RF3 — Digital I/O / SEG/LCD driver |
| פין 46 | RF4 — Digital I/O / COM/LCD driver |
| פין 47 | RF5 — Digital I/O / COM/LCD driver |
| פין 48 | EP — Exposed thermal pad (connect to VSS) |
יישומים טיפוסיים
PIC24FJ512GL405-I/M4 מתאים עבור 6 יישוםs: Secure IoT Edge Node with OTA Update, USB-CDC Medical Instrumentation, Segmented-LCD Thermostat HMI, Industrial Metering with LCD Display, Low-Power Wireless Sensor Hub, Battery-Backed Home Automation Panel.
Secure IoT Edge Node with OTA Update
The PIC24FJ512GL405-I/M4 is well-suited as a secure IoT edge node MCU thanks to its 512 KB Dual Partition Flash with rollback-safe OTA firmware swap, on-chip USB 2.0 Full-Speed for tethered provisioning, and 12 Core Independent Peripherals that handle sensor polling autonomously. Its eXtreme Low-Power (XLP) sleep current drops below 1 µA in deep sleep, so battery-powered nodes can last years on a single CR2032 coin cell while still streaming MQTT-over-USB or BLE-passthrough telemetry.
מומלץ
USB-CDC Medical Instrumentation
In USB-CDC medical instrumentation such as handheld pulse oximeters, digital stethoscopes, and bedside telemetry probes, the PIC24FJ512GL405-I/M4 delivers deterministic 16-MIPS throughput for filtering and DSP, while its on-chip USB 2.0 Full-Speed transceiver eliminates an external PHY and BOM cost. The 32 KB SRAM is sufficient for USB endpoint buffering plus a 4-ksample FIR filter ring buffer, and the 2.0-3.6 V range allows direct Li-ion operation with hardware brown-out reset for patient-safety compliance.
מומלץ
Segmented-LCD Thermostat HMI
For wall-mounted HVAC thermostats, water-heater controllers, and home-energy displays, the PIC24FJ512GL405-I/M4 integrates a segmented LCD driver capable of driving up to 488 segments with no external charge-pump circuitry, reducing BOM by 3-5 dollars versus discrete driver solutions. The 512 KB Flash holds multilingual UI strings and Modbus/BACnet stacks, while XLP sleep keeps total quiescent draw under 50 µA so the thermostat can run for years on backup batteries during power loss events.
מומלץ
Industrial Metering with LCD Display
In three-phase energy meters, water-flow totalizers, and gas-utility smart endpoints, the PIC24FJ512GL405-I/M4 provides the segmented-LCD driver for numeric readouts, the 12-bit ADC for shunt-current sensing, and the 32 KB SRAM for tariff-schedule buffers. Its hardware math accelerator (MAC) speeds IEC 62053 class-1 metering math, and the 48-UQFN 6×6 mm footprint fits within compact meter enclosures while the industrial -40 to +85 °C rating handles outdoor cabinet environments.
מומלץ
Low-Power Wireless Sensor Hub
As a wireless sensor hub front-end for Zigbee, LoRa, or sub-GHz proprietary networks, the PIC24FJ512GL405-I/M4 acts as the host MCU managing the radio via SPI while its DMA engine moves packets without CPU wakeup. The 512 KB Dual Partition Flash supports OTA radio-firmware updates, and XLP deep-sleep under 1 µA keeps quiescent power negligible compared to the radio's own consumption, extending battery life of remote solar-powered sensor stations to 5+ years.
מומלץ
Battery-Backed Home Automation Panel
In wall-mounted home-automation panels with segmented-LCD status displays, capacitive-touch sliders, and USB service ports, the PIC24FJ512GL405-I/M4 combines USB 2.0 Full-Speed for firmware update, 32 KB RAM for Zigbee/Z-Wave command buffers, and 12 CIPs that offload PWM dimming and event timing. The 2.0-3.6 V range supports direct Li-ion battery backup with on-chip brown-out, and the 48-UQFN footprint leaves board space for a 2.4 GHz radio module plus antenna keep-out.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור PIC24FJ512GL405-I/M4 — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | PIC24FJ512GU405-I/M4 | PIC24FJ256GU405-I/M4 | PIC24FJ256GL405-I/PT | PIC24FJ256GU406-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-UQFN (6x6 mm) | 48-UQFN (6x6 mm) - same | 48-UQFN (6x6 mm) - same | TQFP-64 - different footprint | TQFP-64 - different footprint |
| Flash Memory | 512 KB Dual Partition | 512 KB Dual Partition | 256 KB Dual Partition | 256 KB Dual Partition | 256 KB Dual Partition |
| ECC Flash | 256 KB | 256 KB | 128 KB | 128 KB | 128 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| Hardware Crypto | No (AES/SHA in GU4 only) | Yes (AES/SHA/RNG) | Yes (AES/SHA/RNG) | No | Yes (AES/SHA/RNG) |
| USB 2.0 FS | Yes (on-chip transceiver) | Yes | Yes | Yes | Yes |
| LCD Segments | Up to 488 | Up to 488 | Up to 488 | Up to 488 | Up to 488 |
| 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 |
מבדילים עיקריים
- Dual Partition Flash for live OTA updates with rollback (לעומתPIC24FJ256GU405-I/M4)
- XLP deep-sleep current below 1 µA for battery-backed HMIs (לעומתPIC24FJ256GU406-I/PT)
- 48-UQFN 6×6 mm footprint saves PCB area vs 64-pin TQFP (לעומתPIC24FJ256GL405-I/PT)
הערות תכנון
Route USB D+ and D- as a 90 Ω differential pair with matched length within 150 mil, keeping them short and isolated from switching nodes. Place the 48-UQFN exposed pad (EP) on a continuous ground pour with at least 9 thermal vias (0.3 mm drill, 0.5 mm pitch) to keep theta_JA low. Decouple VDD with 100 nF ceramic placed within 3 mm of the supply pin and a bulk 10 µF near the ICSP connector for in-circuit programming stability.
The PIC24FJ512GL405-I/M4 supports eXtreme Low-Power (XLP) sleep with deep-sleep current under 1 µA when peripherals are gated off. Estimated: with RTCC running and wake-on-change enabled, average current on a CR2032 (~235 mAh) coin cell is approximately 12 µA, yielding a 2.3-year battery life assuming 200 wakes/day. Verify with Microchip's MPLAB X XLP estimator before finalizing BOM power budget.
Do not confuse the GL4 part number with the GU4 variant: PIC24FJ512GL405 has NO hardware AES/SHA accelerator - selecting GU405 is mandatory for secure-boot or TLS-offload designs. Also note the /M4 suffix denotes 48-UQFN (6×6 mm); the /PT suffix is a 64-pin TQFP and requires PCB layout rework. Always confirm package code against the datasheet pin diagrams before tape-out.
When driving a segmented LCD panel, route COM and SEG traces with 0.2 mm width and 0.2 mm spacing, and add a ground guard trace between adjacent SEG lines for 4-digit or higher displays to suppress crosstalk. Place 1 nF bypass caps on each VLCD pin and verify the bias charge-pump frequency (typically 60 Hz) does not couple into analog inputs - use the on-chip CTMU for cap-touch sensing on dedicated pins only.
מידע על תאימות
RoHS and REACH compliant per Microchip product page DS7001F. Not AEC-Q100 qualified - this is an industrial-grade MCU (-40 to +85 °C). For automotive applications, select PIC24FJxxxGL5x0-E/M4 extended-grade variants. Lead-free and halogen-free per Microchip environmental compliance statements.
