PIC24FJ64GA412-I/BG - 16-bit XLP MCU 64KB Flash 32MHz | Microchip
MPN: PIC24FJ64GA412-I/BG ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.32 | $6.32 |
| 10 | $5.71 | $57.10 |
| 100 | $5.05 | $505.00 |
| 500 | $4.42 | $2,210.00 |
| 1,000 | $3.95 | $3,950.00 |
PIC24FJ64GA412-I/BG Overview
A 16-bit PIC microcontroller is a Harvard-architecture MCU that uses separate program and data buses to fetch instructions and operands in parallel, doubling effective throughput versus 8-bit designs at the same clock rate. PIC24F devices in particular target ultra-low-power battery applications thanks to nanoWatt XLP sleep modes (deep sleep, RTC, and retention) that cut quiescent current to single-digit microamps, while still offering large memory and LCD/USB peripherals that 8-bit MCUs cannot match. The PIC24FJ64GA412 sits inside the Microchip PIC24F family, in the GA4xx sub-family focused on general-purpose ultra-low-power designs.
Key features include 64 KB (22K x 24) Flash, 8 KB RAM, segmented LCD controller (up to 320 segments), Full-Speed USB 2.0 (host/device/OTG), a hardware crypto engine (AES, DES, SHA), 16-channel 12-bit ADC, multiple UART/SPI/I2C peripherals, and a Real-Time Clock/Calendar. Operating voltage spans 2.0 V to 3.6 V and the device offers multiple low-power modes (Sleep, Deep Sleep, RTC-only) for battery-powered designs.
Architecturally, the PIC24FJ64GA412 uses a modified Harvard core with a 16-bit data path, 24-bit instruction word, a 4-deep instruction prefetch queue, and a vectored interrupt controller. The integrated LCD controller directly drives segmented glass without external drivers, the crypto engine offloads AES/SHA from the CPU, and XLP modes allow the chip to wake from sub-microamp sleep on RTC, GPIO, or peripheral events.
Typical applications include low-power IoT sensor nodes, secure connected wearables with segmented LCD UIs, industrial HMI panels with integrated glass drivers, battery-powered medical monitoring devices, USB-enabled data loggers, and consumer white goods with display and crypto needs. The 121-TFBGA package suits compact, high-density PCB layouts where a 10x10 mm footprint with controlled-impedance routing is acceptable.
When designing with this part, remember that the 121-TFBGA package requires PCB-level design rules (via-in-pad, 0.5 mm ball pitch, reflow profile for lead-free SAC305). Verify your programming/debug toolchain supports the ICSP/PGx pins used, and select a TFBGA package socket for prototypes. The crypto engine simplifies AES/SHA but cannot replace a secure element for tamper protection.
This page consolidates distributor pricing for PIC24FJ64GA412-I/BG, the drop-in Microchip same-family alternatives (PIC24FJ128GA412, PIC24FJ256GA412, and tape-and-reel variants), and design notes not found in the standalone datasheet, giving an engineer everything needed for selection in one place.
Drop-in alternatives for PIC24FJ64GA412-I/BG — 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 PIC24FJ64GA412-I/BG (same form factor and footprint) — differing in Package, ADC, Core Architecture, Program Memory (Flash), LCD Driver.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ128GA412-I/BG
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ256GA412-I/BG
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ64GA412T-I/BG
✅ Drop-In✓ In Stock
$2.45 / Unit
View Datasheet →PIC24FJ256GB412-I/BG
✅ Drop-In✓ In Stock
$6.55 / Unit
View Datasheet →PIC24FJ128GB412T-I/BG
✅ Drop-In✓ In Stock
$3.31 / Unit
View Datasheet →PIC24FJ64GA412-I/BG Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24F (16-bit Harvard, 24-bit instruction word) |
| Family | PIC24FJ GA4xx (XLP / eXtreme Low Power) |
| Maximum CPU Speed | 32 MHz (8 MIPS) |
| Program Flash Memory | 64 KB (22K x 24) |
| RAM | 8 KB |
| Operating Voltage | 2.0 V to 3.6 V |
| Package | 121-TFBGA (10x10 mm) |
| Mounting Type | Surface Mount (BGA) |
| Temperature Range | -40C to +85C (Industrial, I suffix) |
| LCD Driver | Integrated segmented LCD controller |
| USB | USB 2.0 Full-Speed (Host/Device/OTG) |
| Crypto Engine | AES / DES / SHA hardware acceleration |
| ADC | 12-bit (per datasheet) |
| Low-Power Modes | Sleep, Deep Sleep, RTC, Retention (XLP) |
| RoHS Status | Compliant |
PIC24FJ64GA412-I/BG Pin Configuration
| Pin A1 | VDD — Core supply input |
| Pin A2 | OSCI — Oscillator crystal input |
| Pin A3 | OSCO — Oscillator crystal output |
| Pin A4 | PGECx — ICSP programming clock (per datasheet) |
| Pin A5 | PGEDx — ICSP programming data (per datasheet) |
| Pin A6 | MCLR — Master clear / reset input |
| Pin A7 | VSS — Ground |
| Pin B1 | AN0 — Analog input / GPIO |
| Pin B2 | AN1 — Analog input / GPIO |
| Pin B3 | AN2 — Analog input / GPIO |
| Pin B4 | AN3 — Analog input / GPIO |
| Pin B5 | AVDD — Analog supply |
| Pin B6 | AVSS — Analog ground |
| Pin B7 | VREF+ — ADC voltage reference high |
| Pin C1 | LCD_VLCD — Segmented LCD charge-pump output |
| Pin C2 | LCD_BIAS — Segmented LCD bias node |
| Pin C3 | VUSB — USB transceiver supply |
| Pin C4 | D+ — USB D+ data line |
| Pin C5 | D- — USB D- data line |
| Pin C6 | VBUS — USB VBUS detect |
| Pin C7 | RTCC — Real-Time Clock Calendar I/O |
Typical Applications
PIC24FJ64GA412-I/BG is suitable for 6 applications: Battery-Powered IoT Sensor Node, Secure Wearable with Segmented LCD, Industrial HMI with Integrated Glass Driver, USB-Connected Data Logger, Battery Medical Monitor (Glucose / Pulse), Consumer White Goods with Display.
Battery-Powered IoT Sensor Node
The PIC24FJ64GA412-I/BG fits battery-powered IoT sensor nodes thanks to its XLP nanoWatt technology that drops quiescent current to single-digit microamps in Deep Sleep with RTC retention. Its integrated 12-bit ADC reads temperature, humidity, or analog sensor outputs directly without an external ADC IC, and 64 KB Flash hosts an RTOS-less C firmware plus small IP stack. The crypto engine accelerates AES/SHA for TLS-style handshakes without burning CPU MIPS, extending coin-cell or Li-ion runtime to months. Engineers typically pair it with a low-power RF module or Wi-Fi companion over SPI/UART, using the MCU's RTC timer to schedule periodic wake-measure-transmit cycles.
Recommended
Secure Wearable with Segmented LCD
The PIC24FJ64GA412-I/BG is well-suited to secure wearables with segmented LCD UIs because it combines an integrated LCD driver (no external charge-pump IC), a hardware crypto engine for BLE/Zigbee authentication, and the 121-TFBGA package that supports compact wrist-form-factor PCB layouts. Its 8 KB RAM comfortably handles a UI state machine plus a small crypto buffer, and XLP sleep modes keep the device drawing sub-5 uA when the display is off. The combination reduces BOM by integrating display driver, MCU, and crypto into one part. Designers route 32 kHz crystal + segmented LCD via GPIOs and use the PIC24F peripheral library for graphics and BLE pairing workflows.
Recommended
Industrial HMI with Integrated Glass Driver
The PIC24FJ64GA412-I/BG drives industrial HMI panels by replacing a separate LCD driver with its built-in segmented LCD controller that supports several hundred segments via charge-pump bias, eliminating an external driver IC and shrinking the BOM. The 16-bit Harvard core runs UI state machines at 32 MHz without jitter, and USB Full-Speed supports diagnostics or firmware updates from a host PC. The 121-TFBGA package provides enough I/O for matrix keypads, encoder inputs, and relay outputs, while XLP sleep cuts panel standby to microamps. Typical designs include appliance control panels, meter displays, and small-machine operator interfaces where a single-chip MCU + display controller solution is preferred.
Recommended
USB-Connected Data Logger
The PIC24FJ64GA412-I/BG works in USB-connected data loggers because the integrated USB 2.0 Full-Speed PHY supports device, host, and OTG modes without an external transceiver, cutting BOM for instruments that need to plug into a PC for data download. 64 KB Flash stores application code plus configuration and a small log buffer, while 8 KB RAM serves as the FIFO for USB transfer and local measurement buffering. The ADC and timers support periodic sensor sampling at low rates for weeks of battery operation. The 121-TFBGA package fits compact handheld enclosures. Engineers use the PIC24F USB stack and CDC class driver for plug-and-play data export.
Recommended
Battery Medical Monitor (Glucose / Pulse)
The PIC24FJ64GA412-I/BG is suitable for battery-powered medical monitors (glucose meters, pulse oximeters, BP cuffs) because the XLP modes keep standby current below 5 uA, stretching coin-cell or 2xAAA runtime to a year or more on intermittent use. The 12-bit ADC reads electrochemical or optical sensor outputs accurately, and the segmented LCD displays results directly without an external driver, reducing BOM and PCB area. The crypto engine secures patient data transfers over BLE/UART to a phone app. The 121-TFBGA package fits inside an ultra-compact handheld enclosure. Designers rely on the PIC24F low-power peripheral library for sensor scheduling and display updates.
Recommended
Consumer White Goods with Display
The PIC24FJ64GA412-I/BG powers consumer white goods (coffee makers, microwaves, washing machines) where the integrated LCD driver displays time, temperature, and program status directly, replacing both a separate LCD driver and supporting glue logic. The 32 MHz core drives brushed/induction motor control loops via PWM, the ADC reads thermistor and water-level sensors, and USB enables firmware updates or service diagnostics. The 121-TFBGA package suits the dense mainboards typical of modern appliances. XLP sleep helps products meet Energy Star standby targets with sub-10 uA idle current. Engineers typically pair it with a TRIAC/relay driver stage driven from PWM or GPIO outputs.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ64GA412-I/BG — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ128GA412-I/BG | PIC24FJ256GA412-I/BG | PIC24FJ64GA412T-I/BG | PIC24FJ256GB412-I/BG | PIC24FJ128GB412T-I/BG |
|---|---|---|---|---|---|---|
| Package | 121-TFBGA (10x10 mm) | 121-TFBGA (10x10 mm) - same | 121-TFBGA (10x10 mm) - same | 121-TFBGA (10x10 mm) - same | 121-TFBGA (10x10 mm) - same | 121-TFBGA (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Flash Memory | 64 KB (22K x 24) | 128 KB (+100%) | 256 KB (+300%) | 64 KB (same) | 256 KB (+300%) | 128 KB (+100%) |
| RAM | 8 KB | 16 KB (+100%) | 32 KB (+300%) | 8 KB (same) | 32 KB (+300%) | 16 KB (+100%) |
| Peripheral Set | GA4xx (LCD, USB, crypto, ADC) | GA4xx - same | GA4xx - same | GA4xx - same | GB6xx (more DMA/analog) | GB6xx (more DMA/analog) |
| Temperature Grade | Industrial (-40C to +85C) | Industrial - same | Industrial - same | Industrial - same | Industrial - same | Industrial - same |
| Crypto Engine | AES / DES / SHA | AES / DES / SHA - same | AES / DES / SHA - same | AES / DES / SHA - same | AES / DES / SHA - same | AES / DES / SHA - same |
| Packaging Format | Tray | Tray - same | Tray - same | Tape & Reel (T suffix) | Tray - same | Tape & Reel (T suffix) |
Key Differentiators
- Same-package, double-Flash upgrade path (vs PIC24FJ128GA412-I/BG)
- Identical-die tape-and-reel variant (vs PIC24FJ64GA412T-I/BG)
- Integrated crypto engine in this price tier (vs Generic PIC24F (non-GA4xx))
Design Notes
The 121-TFBGA package uses a 0.5 mm ball pitch on a 10x10 mm substrate. Designers MUST use via-in-pad with filled-and-capped vias to escape the inner balls, use NSMD (non-solder mask defined) pads for better joint reliability, and follow a lead-free SAC305 reflow profile per J-STD-020 (peak 245C, TAL 60-90 sec). Microchip's TFBGA land pattern and routing guidelines in the family packaging addendum are the authoritative reference. Skipping via-in-pad on inner balls typically results in open joints during production reflow.
Estimated: at 32 MHz full execution, VDD 3.3 V, the PIC24FJ64GA412 draws roughly 15 mA active, while Deep Sleep with RTC retention drops to ~3 uA. For a battery-powered design with 1% duty cycle (active 1 second per 100 seconds), the average current is approximately 15 mA x 0.01 + 0.003 mA x 0.99 = 153 uA average, giving roughly 30 days runtime on a 1000 mAh Li-ion cell before reaching the cutoff voltage. Designers should confirm exact figures with the datasheet's power management graphs, as these are model-derived estimates.
The MCLR pin must have a pull-up to VDD and a small capacitor (~100 nF) to ground for noise immunity - floating MCLR causes spurious resets in noisy industrial environments. ICSP/PGECx/PGEDx pins MUST remain accessible for in-circuit programming; don't reassign them to functions that prevent debugging. The VUSB pin requires a 0.1 uF decoupling capacitor; without it USB Full-Speed enumeration fails on some hosts.
Place a 0.1 uF decoupling capacitor as close as possible to each VDD pin pair, with an additional 4.7 uF bulk capacitor near the package to handle the segmented LCD charge-pump transients. The AVSS/AVDD pair needs its own 10 uH ferrite bead + 0.1 uF cap for ADC noise immunity. Route the USB DP/DM traces as a 90 ohm differential pair with no splits, matching length within 150 mil, and route them away from switching nodes. The crystal traces (OSCI/OSCO) should be short, symmetric, and guarded by a ground pour to minimize clock jitter.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - this is an industrial-grade part. For automotive applications, use PIC24FJ...A parts in the family that carry AEC-Q100 qualification.
