PIC24FJ256DA106-I/PT - 256KB Flash 16-Bit MCU with Graphics | Microchip
MPN: PIC24FJ256DA106-I/PT ✓ Hoạt độngPIC24FJ256DA106-I/PT Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), and a rich set of peripherals on one die. The PIC24F family uses a modified Harvard architecture running a 16-bit instruction word with a 16-bit working register array, a 17-bit x 17-bit single-cycle hardware multiplier, and a hardware 16/16-bit divider. The 'DA' sub-family extends the base 'GA' general-purpose line by adding a dedicated graphics display controller, a parallel graphics port (EPMP/GFX), and USB OTG - targeting cost-sensitive graphical HMI products where bill-of-materials pressure rules out an external GPU.
Key features of this device include 256 KB self-programmable Flash with code-guard security, 24 KB SRAM, an 8 MHz internal oscillator with 4x PLL (yielding the 32 MHz CPU clock), a Charge Time Measurement Unit (CTMU) for capacitive touch sensing on up to 64 buttons, Peripheral Pin Select (PPS) that remaps digital peripherals to almost any I/O, and multiple serial interfaces (UART, SPI, I2C). The CTMU and PPS combination is what allows the PIC24FJ256DA106 to replace dedicated touch controllers and external pin-mux chips in cost-optimised designs.
Architecturally the part combines a C-compiler-optimized RISC engine with the EPMP graphics engine, a DMA controller, a 16-bit timer/counter bank, a 10-bit 500 ksps ADC (typically 16 channels on the 64-pin device), and a USB 2.0 full-speed OTG transceiver. The integrated graphics block accelerates line draw, blit, text render, and alpha blending in hardware, offloading the CPU and enabling smooth GUI refresh at 60 Hz on WQVGA panels. The 32 MHz CPU core executes most instructions in one cycle, so the DMA + EPMP pair can sustain pixel throughput without CPU intervention.
Typical applications for the PIC24FJ256DA106-I/PT include low-cost graphical user interfaces on home appliances, white-goods control panels, industrial operator terminals, medical bedside displays, USB-connected point-of-sale terminals, and any embedded product needing a color TFT (up to 4.3" WQVGA) with capacitive touch without paying for a separate graphics controller IC.
When designing with this device, observe Microchip's recommended decoupling (100 nF ceramic on every VDD/VSS pair), keep the PLL filter network short, and reserve a programming/debug pin pair for ICSP. The on-chip 3.3V LDO regulator requires its own bulk capacitor and a ferrite bead if the analog supply is noise-sensitive. For CTMU-based touch, the PCB layout and ground flood directly affect measurement repeatability.
This page synthesizes XAIPART distributor pricing, drop-in TQFP-64 alternatives from the PIC24FJ family, and practical hardware design notes that complement (not duplicate) the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC24FJ256DA106-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 PIC24FJ256DA106-I/PT (cùng hình factor và footprint) — khác nhau ở ADC, Package, Core Architecture, Program Memory (Flash), Operating Temperature.
PIC24FJ256GA106-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ128DA106-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ128GA106-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ192GA106-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ256GA106-I/MR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC24FJ256DA106-I/PT Tỷ lệ tối đa & tính chất điện
| Family | PIC24F-DA (eXtreme low power, 16-bit) |
| Core Architecture | Modified Harvard, 16-bit instruction word |
| CPU Speed | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 256 KB (85.5K x 24) |
| Data Memory (RAM) | 24 KB |
| Operating Voltage | 2.0 V to 3.6 V |
| Graphics Controller | Integrated (drives up to 4.3" WQVGA, 480 x 272) |
| USB | USB 2.0 Full-Speed On-The-Go (OTG) |
| Internal Oscillator | 8 MHz with 4x PLL and multiple divider options |
| Hardware Multiplier / Divider | 17 x 17-bit single-cycle multiplier; 16/16-bit hardware divider |
| ADC | 10-bit, 500 ksps (channel count package-dependent) |
| CTMU | Yes (touch sensing support) |
| Peripheral Pin Select (PPS) | Yes |
| Hộp | 64-pin TQFP (PT), 10 x 10 mm |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial, "/I") |
| Trạng thái RoHS | Compliant |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 (per JEDEC J-STD-020) |
Cấu hình chân PIC24FJ256DA106-I/PT
| Chân 1 | RP3/RF3 — Remappable I/O / general-purpose digital |
| Chân 2 | RP4/RF4 — Remappable I/O / general-purpose digital |
| Chân 3 | RP5/RF5 — Remappable I/O / general-purpose digital |
| Chân 4 | AVDD1 — Analog supply (3.3 V) |
| Chân 5 | AVSS1 — Analog ground |
| Chân 6 | PMA0/AN0 — Parallel graphics port address / ADC input |
| Chân 7 | PMA1/AN1 — Parallel graphics port / ADC input |
| Chân 8 | PMA2/AN2 — Parallel graphics port / ADC input |
| Chân 9 | PMA3/AN3 — Parallel graphics port / ADC input |
| Chân 10 | AN4/PMALL — ADC input / pixel latch |
| Chân 11 | AN5/PMALH — ADC input / pixel latch |
| Chân 12 | VREF-/CVREF- — ADC reference low |
| Chân 13 | VREF+/CVREF+ — ADC reference high |
| Chân 14 | AVDD2 — Analog supply 2 |
| Chân 15 | AVSS2 — Analog ground 2 |
| Chân 16 | VDD — Digital supply (2.0-3.6 V) |
| Chân 17 | VSS — Digital ground |
| Chân 18 | PMD0 — Parallel graphics port data bit 0 |
| Chân 19 | PMD1 — Parallel graphics port data bit 1 |
| Chân 20 | PMD2 — Parallel graphics port data bit 2 |
| Chân 21 | PMD3 — Parallel graphics port data bit 3 |
| Chân 22 | PMD4 — Parallel graphics port data bit 4 |
| Chân 23 | PMD5 — Parallel graphics port data bit 5 |
| Chân 24 | PMD6 — Parallel graphics port data bit 6 |
| Chân 25 | PMD7 — Parallel graphics port data bit 7 |
| Chân 26 | VDD — Digital supply |
| Chân 27 | VSS — Digital ground |
| Chân 28 | PMRD/PMWR — Parallel graphics port read/write strobe |
| Chân 29 | PMCS1 — Parallel graphics port chip select 1 |
| Chân 30 | PMCS2 — Parallel graphics port chip select 2 |
| Chân 31 | RF4 — General-purpose I/O (RP1) |
| Chân 32 | RF5 — General-purpose I/O (RP2) |
| Chân 33 | RB5/PMBE0 — Port B I/O / parallel port byte enable 0 |
| Chân 34 | RB4/PMBE1 — Port B I/O / parallel port byte enable 1 |
| Chân 35 | RB3/AN9 — Port B I/O / ADC input |
| Chân 36 | RB2/AN8 — Port B I/O / ADC input |
| Chân 37 | RB1/AN7 — Port B I/O / ADC input |
| Chân 38 | RB0/AN6 — Port B I/O / ADC input |
| Chân 39 | VDD — Digital supply |
| Chân 40 | VSS — Digital ground |
| Chân 41 | RC15/OSC2 — Crystal oscillator output |
| Chân 42 | RC13/SOSC2 — Secondary oscillator output |
| Chân 43 | RC14/SOSC1 — Secondary oscillator input |
| Chân 44 | OSC1/CLKI — Crystal oscillator input / external clock |
| Chân 45 | D+ — USB OTG data plus |
| Chân 46 | D- — USB OTG data minus |
| Chân 47 | VBUS — USB OTG VBUS sense |
| Chân 48 | VUSB3V3 — USB internal LDO output (3.3 V) |
| Chân 49 | RG3 — Port G I/O |
| Chân 50 | RG2 — Port G I/O |
| Chân 51 | RG1 — Port G I/O |
| Chân 52 | RG0 — Port G I/O |
| Chân 53 | RF6 — Port F I/O |
| Chân 54 | RF7 — Port F I/O |
| Chân 55 | RF8 — Port F I/O |
| Chân 56 | RF3 — Port F I/O |
| Chân 57 | RG6 — Port G I/O |
| Chân 58 | RG7 — Port G I/O |
| Chân 59 | RG8 — Port G I/O |
| Chân 60 | RG9 — Port G I/O |
| Chân 61 | MCLR — Master clear (reset) input |
| Chân 62 | PGEC1 — ICSP programming / debug clock 1 |
| Chân 63 | PGED1 — ICSP programming / debug data 1 |
| Chân 64 | PGEC2 — ICSP programming / debug clock 2 |
Ứng dụng tiêu biểu
PIC24FJ256DA106-I/PT phù hợp cho 7 Áp dụngs: Home Appliance HMI Panel, Industrial Operator Terminal, Medical Bedside Display, USB-Connected Point-of-Sale Terminal, Portable Measurement Instrument, IoT Sensor Gateway with Local HMI, Consumer Smart-Home Control Hub.
Home Appliance HMI Panel
The PIC24FJ256DA106-I/PT's integrated graphics controller and 4.3" WQVGA TFT support make it ideal for washing-machine, oven, and dishwasher control panels that need smooth icon-driven UIs without an external GPU. Its 256 KB Flash stores multilingual bitmap assets and fonts, while the CTMU provides capacitive touch on up to 64 buttons, eliminating a separate touch controller IC. Industrial-grade -40C to +85C operation matches appliance under-cabinet thermal requirements. Power-conscious designs benefit from the deep-sleep current under 100 nA typical in sleep modes.
Được đề xuất
Industrial Operator Terminal
For factory-floor operator panels needing a 4.3" color display plus USB logging, the PIC24FJ256DA106-I/PT combines the EPMP/GFX engine, USB OTG, and CTMU touch sensing in a single chip. The 16 MIPS CPU runs protocol stacks (Modbus, CANopen via SPI gateway) while the dedicated DMA sustains 60 Hz GUI refresh. PPS remaps peripherals to avoid PCB routing conflicts in space-constrained panels. The 32 MHz / 16 MIPS performance is sufficient for control loops up to a few hundred Hz with hardware-assisted DMA updates.
Được đề xuất
Medical Bedside Display
The PIC24FJ256DA106-I/PT is well suited to bedside patient monitors or infusion-pump interfaces that require a clear color TFT up to 4.3" WQVGA and reliable capacitive touch. The on-chip graphics engine accelerates vital-sign waveforms and alpha-blended overlays without burdening the 16 MIPS CPU. The 10-bit 500 ksps ADC digitizes sensor inputs while PPS remaps the I2C bus to the same physical pins used on a legacy design. Operating temperature spans -40C to +85C, supporting clinical and home-health environments.
Được đề xuất
USB-Connected Point-of-Sale Terminal
USB OTG capability makes the PIC24FJ256DA106-I/PT a strong fit for compact POS terminals that need USB device connectivity to a host tablet or printer plus a graphical receipt preview. The integrated graphics controller drives a small color TFT for transaction confirmation, while 256 KB Flash holds font tables and transaction flow logic. CTMU enables a sealed glass-front keypad without mechanical buttons, improving ingress protection. The C-compiler-optimized core simplifies porting of existing application code from PIC24F GA devices.
Được đề xuất
Portable Measurement Instrument
Handheld multimeters and process calibrators benefit from the PIC24FJ256DA106-I/PT's combination of a 10-bit 500 ksps ADC, integrated TFT graphics, and USB OTG for data download. The 16 MIPS core runs averaging filters and unit conversions while the hardware graphics block redraws waveforms and menus. CTMU touch keys survive the harsher front-panel environment of test equipment. Deep-sleep modes help meet battery-life targets between charges, while the wide 2.0 V to 3.6 V supply range tolerates single-cell Li-Ion discharge curves.
Được đề xuất
IoT Sensor Gateway with Local HMI
The PIC24FJ256DA106-I/PT serves as a compact IoT gateway that aggregates sensor data over UART/SPI/I2C and shows live status on a local 4.3" WQVGA TFT, removing the need for an external display controller. USB OTG provides either host mass-storage export or device-mode configuration. PPS simplifies PCB routing when many sensors share pin assignments, and CTMU supports sealed front-panel touch keys. The C-optimized core runs network stacks on top of an external wireless module such as an MRF24WG0MA or ATWINC1500.
Được đề xuất
Consumer Smart-Home Control Hub
Smart-home hubs with a small color display rely on the PIC24FJ256DA106-I/PT for its integrated graphics engine, capacitive touch via CTMU, and USB OTG for firmware updates. The 256 KB Flash stores GUI assets, ZigBee-equivalent protocol glue, and device-pairing tables. PPS allows the UART, SPI, and I2C buses to be remapped around a constrained PCB layout. The deep-sleep current under 100 nA typical helps meet always-on energy budgets when the panel is idle.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC24FJ256DA106-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 | PIC24FJ256GA106-I/PT | PIC24FJ128DA106-I/PT | PIC24FJ128GA106-I/PT | PIC24FJ192GA106-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-pin TQFP (10x10) | 64-pin TQFP (10x10) - same | 64-pin TQFP (10x10) - same | 64-pin TQFP (10x10) - same | 64-pin TQFP (10x10) - same |
| CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| Program Flash | 256 KB | 256 KB | 128 KB | 128 KB | 192 KB |
| RAM | 24 KB | 24 KB | 24 KB | 24 KB | 24 KB |
| Graphics Controller | Yes (4.3" WQVGA) | No | Yes (4.3" WQVGA) | No | No |
| USB OTG | Yes (Full-Speed) | No | Yes (Full-Speed) | No | No |
| CTMU Touch Support | Yes (up to 64 buttons) | Yes | Yes | Yes | Yes |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Lifecycle Status | Active | Active | Active | Active | Active |
Bảo phân biệt quan trọng
- Integrated graphics controller for 4.3" WQVGA (vsPIC24FJ256GA106-I/PT)
- USB OTG in same package (vsPIC24FJ256GA106-I/PT)
- Largest Flash in pin-compatible PIC24FJ DA106 line (vsPIC24FJ128DA106-I/PT)
Ghi chú thiết kế
Decouple every VDD/VSS pin pair with a 100 nF ceramic capacitor placed as close as physically possible to the IC. The PIC24FJ256DA106-I/PT operates from 2.0 V to 3.6 V; using a dedicated low-noise LDO such as MCP1700 for the analog supply (AVDD1/AVDD2) reduces ADC and CTMU noise. The internal USB LDO requires a 4.7 uF bulk capacitor on VUSB3V3 (pin 48), and adding a ferrite bead between VBUS and VUSB3V3 helps isolate noisy hosts.
Keep the EPMP/GFX parallel graphics port traces matched in length to within ~50 mils and route them over a continuous ground plane to maintain signal integrity on a 4.3" WQVGA interface. USB D+/D- traces should be 90 ohm differential and as short as possible. The ICSP pins PGEC1/PGED1 must be brought to a header or test pad; do not share them with display signals. Provide a guard trace or hatched ground around the CTMU touch inputs to suppress EMI.
Do not omit the 8 MHz crystal or external clock source if your application relies on accurate USB full-speed timing - the internal oscillator alone is not specified for USB. Configure the PLL only after the system is stable and never exceed the 32 MHz CPU clock. Reserve at least one UART and one I2C bus for firmware update and in-field debug, and avoid remapping them under PPS without verifying that no internal peripheral conflict arises.
Thông tin tuân thủ
RoHS and REACH compliance per Microchip product page; industrial temperature grade -40C to +85C. Not AEC-Q100 qualified (not an automotive part). Halogen-free status not explicitly listed in retrieved data.
