PIC24FJ256DA106T-I/PT - 16-bit MCU, 256KB Flash, USB OTG | Microchip
MPN: PIC24FJ256DA106T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.42 | $8.42 |
| 10 | $7.95 | $79.50 |
| 100 | $7.12 | $712.00 |
| 500 | $6.34 | $3,170.00 |
| 1,000 | $5.78 | $5,780.00 |
PIC24FJ256DA106T-I/PT Overview
A PIC microcontroller (MCU) is a compact, self-contained computing device integrating a CPU core, Flash program memory, SRAM, EEPROM, and configurable peripherals (timers, ADC, communication controllers) into a single IC. The PIC24F sub-family uses a 16-bit modified Harvard architecture with RISC instruction set, optimized for low-power and mixed-signal embedded designs. PIC24F sits in the hierarchy MCU -> microcontroller -> embedded processor -> semiconductor, and PIC24FJ adds Flash program memory plus the J (J-series) low-power enhancements. The DA1-series integrates a dedicated graphics controller, reducing CPU overhead for TFT panels, while GB1/DA1 parts add USB OTG for device/host peripherals.
Key features of the PIC24FJ256DA106T-I/PT include 256 KB self-programmable Flash, 24 KB SRAM, hardware multiplier (16x16 in one cycle), 8-channel 10-bit ADC, RTCC, and parallel master port (PMP) for graphics data. The device supports 2.0V-3.6V operation, nanoWatt deep-sleep with sub-uA standby, and CTMU for capacitive touch. The 64-pin TQFP package exposes up to 52 digital I/O pins for ample user-interface expansion.
Typical applications include graphical human-machine interface (HMI) panels, USB consumer peripherals (HID/composite device), industrial control displays, medical bedside terminals, and battery-powered instrumentation with segmented or TFT graphical feedback. Design considerations: supply decoupling per Microchip AN585 (0.1 uF + 10 uF tantalum near VDD), trace length matching on PMP/graphics bus, and proper VCAP connection for the internal regulator.
Drop-in alternatives for PIC24FJ256DA106T-I/PT — 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 PIC24FJ256DA106T-I/PT (same form factor and footprint) — differing in ADC, Core Architecture, Graphics Controller, Package, USB.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ256DA106-I/PT
✅ Drop-In✓ In Stock
$5.46 / Unit
View Datasheet →PIC24FJ256DA106T-I/MR
✅ Drop-In✓ In Stock
$6.05 / Unit
View Datasheet →PIC24FJ256GA106T-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ128GA006-I/PT
✅ Drop-In✓ In Stock
$4.95 / Unit
View Datasheet →PIC24FJ128DA110T-I/PT
✅ Drop-In✓ In Stock
$4.79 / Unit
View Datasheet →PIC24FJ256DA106T-I/PT Maximum Ratings & Electrical Characteristics
| Architecture | PIC 16-bit modified Harvard, RISC |
| Core | PIC24F |
| Max CPU Speed | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 256 KB (85.5K x 24) |
| RAM | 24 KB |
| Operating Voltage | 2.0 V to 3.6 V |
| I/O Pins | 52 |
| ADC | 10-bit, up to 16 channels |
| Package | 64-pin TQFP (PT) 10x10 mm |
| Mounting Type | Surface Mount |
| USB | USB 2.0 OTG (Full-Speed) |
| Graphics Controller | Integrated (PMP + dedicated) |
| Connectivity | I2C x3, UART/USART, SPI x3, IrDA |
| Operating Temperature | -40C to +85C (industrial) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC24FJ256DA106T-I/PT Pin Configuration
| Pin 1 | RP15/RD15 — Remappable peripheral I/O / PMP data |
| Pin 2 | RP14/RD14 — Remappable peripheral I/O / PMP data |
| Pin 3 | RP13/RD13 — Remappable peripheral I/O / PMP data |
| Pin 4 | RP12/RD12 — Remappable peripheral I/O / PMP data |
| Pin 5 | RP11/RD11 — Remappable peripheral I/O / PMP data |
| Pin 6 | RP10/RD10 — Remappable peripheral I/O / PMP data |
| Pin 7 | RP9/RD9 — Remappable peripheral I/O / PMP data |
| Pin 8 | RP8/RD8 — Remappable peripheral I/O / PMP data |
| Pin 9 | RP7/RD7 — Remappable peripheral I/O / PMP data |
| Pin 10 | RP6/RD6 — Remappable peripheral I/O / PMP data |
| Pin 11 | RP5/RD5 — Remappable peripheral I/O / PMP data |
| Pin 12 | RP4/RD4 — Remappable peripheral I/O / PMP data |
| Pin 13 | RP3/RD3 — Remappable peripheral I/O / PMP data |
| Pin 14 | RP2/RD2 — Remappable peripheral I/O / PMP data |
| Pin 15 | RP1/RD1 — Remappable peripheral I/O / PMP data |
| Pin 16 | RP0/RD0 — Remappable peripheral I/O / PMP data |
| Pin 17 | RE7 — I/O port E |
| Pin 18 | RE6 — I/O port E |
| Pin 19 | RE5 — I/O port E |
| Pin 20 | RE4 — I/O port E |
| Pin 21 | RE3 — I/O port E |
| Pin 22 | VCAP — Internal regulator output (decoupling) |
| Pin 23 | RF6 — I/O port F |
| Pin 24 | RF5 — I/O port F |
| Pin 25 | RF4 — I/O port F |
| Pin 26 | RF3 — I/O port F |
| Pin 27 | RF2 — I/O port F |
| Pin 28 | RF1 — I/O port F |
| Pin 29 | RF0 — I/O port F |
| Pin 30 | AVDD — Analog supply |
| Pin 31 | AVSS — Analog ground |
| Pin 32 | AN0/RB19 — Analog input / I/O port B |
| Pin 33 | AN1/RB20 — Analog input / I/O port B |
| Pin 34 | AN2/RB21 — Analog input / I/O port B |
| Pin 35 | AN3/RB22 — Analog input / I/O port B |
| Pin 36 | AN4/RB23 — Analog input / I/O port B |
| Pin 37 | AN5/RB24 — Analog input / I/O port B |
| Pin 38 | AN6/RB25 — Analog input / I/O port B |
| Pin 39 | AN7/RB26 — Analog input / I/O port B |
| Pin 40 | AN8/RB27 — Analog input / I/O port B |
| Pin 41 | AN9/RB28 — Analog input / I/O port B |
| Pin 42 | OSC1/CLKI/RC12 — Oscillator input / clock input |
| Pin 43 | OSC2/CLKO/RC15 — Oscillator output / clock output |
| Pin 44 | RC1 — I/O port C |
| Pin 45 | RC2 — I/O port C |
| Pin 46 | RC3 — I/O port C |
| Pin 47 | RC4/SDI1 — I/O port C / SPI data in |
| Pin 48 | RG15 — I/O port G |
| Pin 49 | RG13 — I/O port G |
| Pin 50 | RG12 — I/O port G |
| Pin 51 | RG0 — I/O port G |
| Pin 52 | RG1 — I/O port G |
| Pin 53 | RG2 — I/O port G |
| Pin 54 | RG3 — I/O port G |
| Pin 55 | MCLR — Reset (active low) |
| Pin 56 | VDD — Digital supply |
| Pin 57 | VSS — Digital ground |
| Pin 58 | RA14 — I/O port A |
| Pin 59 | RA15 — I/O port A |
| Pin 60 | RA9 — I/O port A |
| Pin 61 | RA10 — I/O port A |
| Pin 62 | RB4 — I/O port B |
| Pin 63 | RB5 — I/O port B |
| Pin 64 | RB6 — I/O port B / PGEC1 (ICSP clock) |
Typical Applications
PIC24FJ256DA106T-I/PT is suitable for 6 applications: Graphical Human-Machine Interface (HMI) Panels, USB OTG Peripherals (HID, Composite, Mass Storage), Industrial Control Displays with Touch, Medical Bedside Terminals and Patient Monitors, Battery-Powered Graphical Handheld Instruments, Consumer Electronics with USB Connectivity.
Graphical Human-Machine Interface (HMI) Panels
The PIC24FJ256DA106T-I/PT is purpose-built for graphical HMI panels: its integrated graphics controller offloads drawing primitives (line, rectangle, text) from the CPU, while the Parallel Master Port (PMP) drives 8/16-bit TFT controllers (SSD1963, RA8875) directly. Per Microchip datasheet DS39905, the 24 KB SRAM is enough to buffer a full QVGA (320x240) frame, and the 32 MHz / 16 MIPS core handles button decoding and CTMU touch sensing concurrently. Place the MCU between the user interface PCB and a 3.5"-4.3" TFT for industrial control panel designs with sub-30 mW active power.
Recommended
USB OTG Peripherals (HID, Composite, Mass Storage)
The PIC24FJ256DA106T-I/PT integrates a USB 2.0 Full-Speed OTG transceiver with internal 3.3 V regulator, eliminating external PHY chips. Per Microchip datasheet DS39905 and application note AN1078 (USB stack), the device supports device, host, and dual-role modes using the Microchip MLA stack. The 256 KB Flash is sufficient for HID + composite + CDC stacks with bootloaders, and 24 KB SRAM buffers incoming USB packets. Best fit for USB barcode scanners, custom keyboards, and field-updatable medical instruments.
Recommended
Industrial Control Displays with Touch
For industrial operator panels with capacitive touch, the PIC24FJ256DA106T-I/PT combines CTMU (Charge Time Measurement Unit) for up to 64 touch buttons with the integrated graphics controller. Per Microchip datasheet DS39905, CTMU delivers sub-percent capacitance resolution without external touch controller IC. Industrial operating temperature -40C to +85C, 3.3 V single supply, and 64-pin TQFP surface mount make it rugged for factory-floor deployments. Pair with 4-20 mA analog front-ends over I2C/SPI for sensor-driven HMI.
Recommended
Medical Bedside Terminals and Patient Monitors
The PIC24FJ256DA106T-I/PT suits medical bedside terminals: integrated graphics controller drives TFT waveforms, USB OTG connects to nurse-call peripherals, and nanoWatt deep-sleep (<1 uA standby per Microchip datasheet DS39905) preserves battery life in portable carts. The 256 KB Flash supports encrypted patient-record UI, and the 10-bit ADC reads vital-sign analog front-ends. 3.3 V single-supply simplifies IEC 60601-1 isolation design; pair with medical-grade DC-DC converters for 5 kV reinforced isolation.
Recommended
Battery-Powered Graphical Handheld Instruments
For battery-powered handheld instruments (portable gas detectors, environmental meters with TFT display), the PIC24FJ256DA106T-I/PT delivers 16 MIPS performance at sub-30 mW active and nanoWatt deep-sleep <1 uA standby (per Microchip datasheet DS39905). The integrated graphics controller eliminates the need for a separate TFT driver MCU, reducing BOM cost and quiescent draw. 64-pin TQFP (10x10 mm) supports compact handheld PCBs; pair with a 3.3 V Li-Ion/LiFePO4 buck-boost and segmented LCD backup indicators for low-battery UX.
Recommended
Consumer Electronics with USB Connectivity
The PIC24FJ256DA106T-I/PT is well-suited for consumer USB peripherals: game controllers, USB audio interfaces, custom keyboards, and USB mass-storage devices. Per Microchip datasheet DS39905 and application note AN1078, USB OTG + integrated 3.3 V regulator reduce external component count. 256 KB Flash holds USB class drivers and custom HID descriptors, 24 KB SRAM handles USB endpoint buffers, and 32 MHz provides responsive HID polling. 2.0 V-3.6 V single supply and low BOM make it attractive for cost-sensitive consumer designs.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ256DA106T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ256DA106-I/PT | PIC24FJ256DA106T-I/MR | PIC24FJ256GA106T-I/PT | PIC24FJ128GA006-I/PT | PIC24FJ128DA110T-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same |
| Core Architecture | PIC24F (16-bit, RISC) | PIC24F (16-bit, RISC) - same | PIC24F (16-bit, RISC) - same | PIC24F (16-bit, RISC) - same | PIC24F (16-bit, RISC) - same | PIC24F (16-bit, RISC) - same |
| Max CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| Flash Memory | 256 KB | 256 KB | 256 KB | 256 KB | 128 KB (-50%) | 128 KB (-50%) |
| RAM | 24 KB | 24 KB | 24 KB | 16 KB (-33%) | 8 KB (-67%) | 24 KB |
| USB OTG | Yes (Full-Speed) | Yes | Yes | No | No | No |
| Graphics Controller (PMP) | Integrated (DA1 graphics) | Integrated | Integrated | No (general-purpose variant) | No | Integrated (DA1 graphics) |
Key Differentiators
- Integrated graphics controller with PMP for direct panel drive (vs PIC24FJ256GA106T-I/PT)
- USB 2.0 Full-Speed OTG integrated transceiver (vs PIC24FJ128DA110T-I/PT)
- Largest Flash + RAM in DA1 family in 64-TQFP (vs PIC24FJ128DA110T-I/PT)
Design Notes
The PIC24FJ256DA106T-I/PT integrates a 2.5V/1.8V core LDO that requires a 10 uF + 0.1 uF decoupling pair on the VCAP pin (pin 22 of 64-TQFP) per Microchip datasheet DS39905. Place the bulk ceramic as close as possible to VCAP, and use a low-ESR X7R type rated 6.3V minimum. AVDD/AVSS pair (pins 30/31) must be tied with separate traces and a local 0.1 uF + 10 uF decoupling set per AN585; analog traces should reference the AVSS star ground.
For TFT panel applications, the Parallel Master Port (PMP) data lines (RD0-RD15) and control lines should be length-matched within 1 mm to keep PMP reads/writes synchronized with the TFT controller clock. Per Microchip datasheet DS39905 graphics controller section, add a 33 ohm series resistor on each PMP line near the MCU for source-termination if the panel flex cable exceeds 50 mm. USB D+/D- traces must be 90 ohm differential, max length 50 mm per USB 2.0 specification, with a common-mode choke near the connector.
Do not confuse the PIC24FJ256DA106 family (integrated graphics controller + USB OTG) with the PIC24FJ256GA106 family (general-purpose, no graphics, no USB OTG). Both share the same 64-pin TQFP (10x10 mm) package but software targeting graphics primitives or USB OTG on the GA variant will not run. Per Microchip datasheet DS39905, the DA suffix specifically denotes the dedicated graphics + USB-OTG subset; the GA suffix denotes general-purpose PPS/CTMU peripheral subset.
Compliance Information
RoHS compliance and lead-free status from Microchip product page (microchip.com/en-us/product/PIC24FJ256DA106). Not AEC-Q100 qualified - this is a general-purpose industrial MCU. Halogen-free status not stated in verified data.
