PIC24FJ256GB110-I/PF - 16-bit MCU 256KB Flash USB OTG TQFP-100
MPN: PIC24FJ256GB110-I/PF ✓ نشطPIC24FJ256GB110-I/PF نظرة عامة
An MCU (microcontroller unit) is a single-chip computer integrating a CPU core, program memory (Flash), data memory (RAM), and a rich set of peripherals (ADC, timers, communication interfaces, I/O). The PIC24F family uses a 16-bit modified Harvard RISC architecture that targets low-power, mixed-signal embedded applications requiring more computational headroom than 8-bit parts but without the cost of a DSP. Within the broader taxonomy, PIC24F MCUs sit between PIC16/PIC18 8-bit controllers and dsPIC33/PIC32 32-bit controllers in Microchip's portfolio.
Key features include 85 I/O pins, a 10-bit ADC with up to 16 channels, four UART modules, three SPI ports, three I2C ports, and five 16-bit timers. The integrated USB OTG peripheral enables dual-role (host/device) operation without an external PHY, while the on-chip RTCC and deep-sleep modes achieve <100 nA standby current for energy-harvesting and always-on applications. Hardware crypto accelerators and a 16-channel DMA controller reduce CPU overhead.
The PIC24FJ256GB110 is built on a low-power CMOS process with nanoWatt technology, integrating multiple power management modes that drop quiescent current dramatically when peripherals are gated off. The USB OTG stack, combined with ample SRAM, makes the part attractive for buffering data streams and implementing composite USB devices without external memory.
Typical applications include USB peripherals, embedded data loggers, industrial sensor hubs, portable medical devices, and human-interface boards. Its pin count and peripheral mix also suit HMI panels, GPS modules, and small-form-factor IoT gateways requiring on-device USB connectivity.
When designing with this MCU, allocate decoupling capacitors close to each VDD/VSS pair and follow Microchip's recommended 33 ohm series resistors on USB DP/DM lines for OTG compliance. Use Microchip's MPLAB X IDE with the XC16 compiler and the MLA USB stack for fastest time-to-prototype.
This page synthesizes distributor pricing, drop-in alternative MPNs, and practical design notes curated from Microchip datasheets and reference designs, providing information not consolidated on a single distributor product page.
بدائل مباشرة لـ PIC24FJ256GB110-I/PF — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع PIC24FJ256GB110-I/PF (نفس عامل الشكل والبصمة) — يختلف في Timers, Package, Operating Temperature, ADC, Core Architecture.
PIC24FJ256GA110-I/PF
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC24FJ128GB110-I/PF
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC24FJ256GB110T-I/PF
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC24FJ192GB110-I/PF
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC24FJ128GB110-I/PT
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC24FJ256GB110-I/PF الحدود القصوى والخصائص الكهربائية
| Core Architecture | PIC 16-bit (modified Harvard RISC) |
| Family | PIC24FJ |
| Program Memory (Flash) | 256 KB (85.5K x 24 words) |
| Data Memory (SRAM) | 16 KB |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Operating Voltage Range | 2.0 V to 3.6 V |
| I/O Pins | 85 |
| ADC | 10-bit, up to 16 channels |
| UART Modules | 4 |
| SPI Modules | 3 |
| I2C Modules | 3 |
| Timers | 5 x 16-bit (23 independent time bases) |
| USB | USB 2.0 Full-Speed OTG (integrated transceiver) |
| DMA Channels | 16 |
| Standby Current | <100 nA (deep sleep, RTCC on) |
| درجة حرارة التشغيل | -40C to +85C (industrial grade, 'I' suffix) |
| العلبة | 100-pin TQFP (14x14 mm), 'PF' suffix |
| نوع التركيب | Surface Mount (SMD/SMT) |
| حالة RoHS | Lead-free / Compliant |
تكوين أطراف PIC24FJ256GB110-I/PF
| دبوس 1 | RG15 — I/O port RG15 |
| دبوس 2 | VDD — Positive supply voltage |
| دبوس 3 | RP5 — Remappable peripheral input 5 |
| دبوس 4 | RP4 — Remappable peripheral input 4 |
| دبوس 5 | RP3 — Remappable peripheral input 3 |
| دبوس 6 | RP2 — Remappable peripheral input 2 |
| دبوس 7 | RP1 — Remappable peripheral input 1 |
| دبوس 8 | RP0 — Remappable peripheral input 0 |
| دبوس 9 | VSS — Ground reference |
| دبوس 10 | OSC1 — Crystal oscillator input / external clock input |
| دبوس 11 | OSC2 — Crystal oscillator output |
| دبوس 12 | SOSC1 — Secondary oscillator input for RTCC |
| دبوس 13 | SOSC2 — Secondary oscillator output |
| دبوس 14 | VCAP — Internal voltage regulator output (bypass with 10 uF cap) |
| دبوس 15 | PGEC1 — ICSP clock 1 / ICD clock |
| دبوس 16 | PGED1 — ICSP data 1 / ICD data |
| دبوس 17 | PGEC2 — ICSP clock 2 (alternate) |
| دبوس 18 | PGED2 — ICSP data 2 (alternate) |
| دبوس 19 | RA0 — I/O port RA0 / analog AN0 |
| دبوس 20 | RA1 — I/O port RA1 / analog AN1 |
| دبوس 21 | RA2 — I/O port RA2 / analog AN2 |
| دبوس 22 | RA3 — I/O port RA3 / analog AN3 |
| دبوس 23 | RA4 — I/O port RA4 |
| دبوس 24 | RA5 — I/O port RA5 |
| دبوس 25 | RA6 — I/O port RA6 |
| دبوس 26 | RA7 — I/O port RA7 |
| دبوس 27 | RA9 — I/O port RA9 |
| دبوس 28 | RA10 — I/O port RA10 |
| دبوس 29 | AVDD — Analog positive supply |
| دبوس 30 | AVSS — Analog ground |
| دبوس 31 | RB0 — I/O port RB0 / analog AN4 |
| دبوس 32 | RB1 — I/O port RB1 / analog AN5 |
| دبوس 33 | RB2 — I/O port RB2 / analog AN6 |
| دبوس 34 | RB3 — I/O port RB3 / analog AN7 |
| دبوس 35 | RB4 — I/O port RB4 / analog AN8 |
| دبوس 36 | RB5 — I/O port RB5 / analog AN9 |
| دبوس 37 | RB6 — I/O port RB6 |
| دبوس 38 | RB7 — I/O port RB7 |
| دبوس 39 | RB8 — I/O port RB8 |
| دبوس 40 | RB9 — I/O port RB9 |
| دبوس 41 | RB10 — I/O port RB10 |
| دبوس 42 | RB11 — I/O port RB11 |
| دبوس 43 | RB12 — I/O port RB12 |
| دبوس 44 | RB13 — I/O port RB13 |
| دبوس 45 | RB14 — I/O port RB14 |
| دبوس 46 | RB15 — I/O port RB15 |
| دبوس 47 | RC1 — I/O port RC1 / analog AN10 |
| دبوس 48 | RC2 — I/O port RC2 / analog AN11 |
| دبوس 49 | RC3 — I/O port RC3 / analog AN12 |
| دبوس 50 | RC4 — I/O port RC4 / analog AN13 |
| دبوس 51 | RD0 — I/O port RD0 |
| دبوس 52 | RD1 — I/O port RD1 |
| دبوس 53 | RD2 — I/O port RD2 |
| دبوس 54 | RD3 — I/O port RD3 |
| دبوس 55 | RD4 — I/O port RD4 |
| دبوس 56 | RD5 — I/O port RD5 |
| دبوس 57 | RD6 — I/O port RD6 |
| دبوس 58 | RD7 — I/O port RD7 |
| دبوس 59 | VDD — Positive supply voltage |
| دبوس 60 | VSS — Ground reference |
| دبوس 61 | RC12 — I/O port RC12 |
| دبوس 62 | RC13 — I/O port RC13 |
| دبوس 63 | RC14 — I/O port RC14 |
| دبوس 64 | RC15 — I/O port RC15 |
| دبوس 65 | RD8 — I/O port RD8 |
| دبوس 66 | RD9 — I/O port RD9 |
| دبوس 67 | RD10 — I/O port RD10 |
| دبوس 68 | RD11 — I/O port RD11 |
| دبوس 69 | RD12 — I/O port RD12 |
| دبوس 70 | RD13 — I/O port RD13 |
| دبوس 71 | RD14 — I/O port RD14 |
| دبوس 72 | RD15 — I/O port RD15 |
| دبوس 73 | RF0 — I/O port RF0 |
| دبوس 74 | RF1 — I/O port RF1 |
| دبوس 75 | RG0 — I/O port RG0 |
| دبوس 76 | RG1 — I/O port RG1 |
| دبوس 77 | RG2 — I/O port RG2 |
| دبوس 78 | RG3 — I/O port RG3 |
| دبوس 79 | RE0 — I/O port RE0 |
| دبوس 80 | RE1 — I/O port RE1 |
| دبوس 81 | RE2 — I/O port RE2 |
| دبوس 82 | RE3 — I/O port RE3 |
| دبوس 83 | RE4 — I/O port RE4 |
| دبوس 84 | RE5 — I/O port RE5 |
| دبوس 85 | RE6 — I/O port RE6 |
| دبوس 86 | RE7 — I/O port RE7 |
| دبوس 87 | RF2 — I/O port RF2 |
| دبوس 88 | RF3 — I/O port RF3 |
| دبوس 89 | RF4 — I/O port RF4 |
| دبوس 90 | RF5 — I/O port RF5 |
| دبوس 91 | RF6 — I/O port RF6 |
| دبوس 92 | RF7 — I/O port RF7 |
| دبوس 93 | RF8 — I/O port RF8 |
| دبوس 94 | D+ — USB D+ data line (integrated transceiver) |
| دبوس 95 | D- — USB D- data line (integrated transceiver) |
| دبوس 96 | VBUS — USB VBUS detect (5V tolerant) |
| دبوس 97 | RG6 — I/O port RG6 |
| دبوس 98 | RG7 — I/O port RG7 |
| دبوس 99 | RG8 — I/O port RG8 |
| دبوس 100 | RG9 — I/O port RG9 |
التطبيقات النموذجية
PIC24FJ256GB110-I/PF مناسب لـ 6 التطبيقs: USB HID Human Interface Devices, USB CDC Virtual COM Port Bridges, Portable Battery-Powered Data Loggers, Industrial Sensor Hubs with USB Diagnostics, Embedded Human-Machine Interface (HMI) Panels, Portable Medical and Wellness Devices.
USB HID Human Interface Devices
The PIC24FJ256GB110-I/PF's integrated USB 2.0 Full-Speed OTG controller with on-chip transceiver makes it a strong fit for USB HID-class peripherals such as keyboards, mice, custom control surfaces, and gamepads. The 16 KB SRAM comfortably buffers HID report descriptors, while the 256 KB Flash fits the USB HID stack plus application logic in Microchip's MLA library. Compared with adding an external USB interface chip to an 8-bit MCU, the integrated USB OTG reduces BOM cost by $1-2 and PCB area by 50-100 mm^2. The 32 MHz/16 MIPS performance sustains polling rates above 1000 Hz on multi-axis inputs.
موصى به
USB CDC Virtual COM Port Bridges
In USB CDC virtual COM port bridges (USB-to-UART converters, debug consoles, factory programming tools), the PIC24FJ256GB110-I/PF shines. The integrated USB transceiver eliminates the need for an external FTDI-style bridge, and the four UART modules let the same firmware serve as a hub or multi-channel gateway. The 16 MIPS core sustains 921600 baud bridging without throughput loss, while 256 KB Flash accommodates USB CDC class driver plus configurable command-line interpreters. Designers also leverage the DMA engine to copy data between USB endpoint RAM and UART buffers without CPU intervention, freeing the core for protocol parsing.
موصى به
Portable Battery-Powered Data Loggers
Battery-powered data loggers benefit from the PIC24FJ256GB110-I/PF's nanoWatt deep-sleep modes (under 100 nA with RTCC active) plus 16 KB SRAM for time-stamped sensor buffering. A typical use case samples an external temperature/humidity sensor every 10 seconds, compresses the data, and writes to a USB flash drive via USB OTG host mode. The 32 MHz performance handles on-the-fly delta compression, while deep-sleep extends battery life on 2xAA cells to 6-12 months. Industrial -40C to +85C operation suits outdoor and cold-chain logistics deployments.
موصى به
Industrial Sensor Hubs with USB Diagnostics
Industrial sensor hubs combine analog inputs (10-bit ADC, 16 channels), digital I/O (85 pins), and USB diagnostics - exactly the PIC24FJ256GB110-I/PF's strength. The on-chip 10-bit ADC at up to 500 ksps is fast enough for vibration and process-variable monitoring, and the CTMU (Charge Time Measurement Unit) enables capacitive touch and resistive sensing. USB OTG host mode supports firmware updates from a USB stick in the field, cutting truck-roll costs. The wide 2.0-3.6V supply accepts 24V industrial rails via a simple LDO.
موصى به
Embedded Human-Machine Interface (HMI) Panels
HMI panels with character or small graphical LCDs, button/keypad input, and USB host capability (for firmware updates or barcode scanners) suit the PIC24FJ256GB110-I/PF. The 256 KB Flash and 16 KB SRAM comfortably hold a small graphical UI library, character tables for multiple languages, and a USB HID host stack. CTMU enables capacitive touch buttons without external touch controllers, while the 85 I/Os drive character LCDs, keypads, status LEDs, and a UART-connected expansion module. Operating at -40C to +85C, the MCU handles industrial cabinet environments.
موصى به
Portable Medical and Wellness Devices
Portable medical and wellness devices (handheld pulse oximeters, home spirometers, fitness monitors) leverage the PIC24FJ256GB110-I/PF's low standby current, USB charging interface, and rich peripheral mix. The 10-bit ADC with up to 16 channels digitizes analog front-end signals from oximetry sensors or ECG leads, while the RTCC maintains accurate time-stamping. USB OTG device mode handles charging and data upload to a host PC. The 16 MIPS performance is sufficient for on-device DSP filtering of bio-signals without an external DSP chip.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PIC24FJ256GB110-I/PF — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | PIC24FJ256GA110-I/PF | PIC24FJ128GB110-I/PF | PIC24FJ256GB110T-I/PF | PIC24FJ192GB110-I/PF | PIC24FJ128GB110-I/PT |
|---|---|---|---|---|---|---|
| Package | 100-pin TQFP (14x14 mm), 'PF' suffix | 100-pin TQFP (14x14 mm), 'PF' suffix - same | 100-pin TQFP (14x14 mm), 'PF' suffix - same | 100-pin TQFP (14x14 mm), 'PF' suffix - same | 100-pin TQFP (14x14 mm), 'PF' suffix - same | 100-pin TQFP (12x12 mm), 'PT' suffix - footprint code differs |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 256 KB | 256 KB | 128 KB (-50%) | 256 KB | 192 KB (-25%) | 128 KB (-50%) |
| Data Memory (SRAM) | 16 KB | 16 KB | 8 KB (-50%) | 16 KB | 16 KB | 8 KB (-50%) |
| USB OTG | Yes (integrated transceiver) | No | Yes (integrated transceiver) | Yes (integrated transceiver) | Yes (integrated transceiver) | Yes (integrated transceiver) |
| Maximum 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 |
| 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 | 2.0 V to 3.6 V |
| I/O Pins | 85 | 85 | 85 | 85 | 85 | 85 |
| ADC | 10-bit, up to 16 channels | 10-bit, up to 16 channels | 10-bit, up to 16 channels | 10-bit, up to 16 channels | 10-bit, up to 16 channels | 10-bit, up to 16 channels |
| Temperature Grade | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) |
أبرز الفروقات
- 256 KB Flash / 16 KB SRAM with integrated USB OTG in TQFP-100 (مقابلPIC24FJ128GB110-I/PF)
- Integrated USB OTG eliminates external bridge IC BOM (مقابلPIC24FJ256GA110-I/PF)
- 100-pin TQFP-100 in 'PF' (14x14 mm) outline vs smaller 'PT' variants (مقابلPIC24FJ128GB110-I/PT)
ملاحظات التصميم
Place a 10 uF low-ESR ceramic bypass capacitor as close as possible to the VCAP pin (pin 14) of the PIC24FJ256GB110-I/PF. This capacitor stabilizes the internal 2.5V core voltage regulator and is mandatory per Microchip datasheet DS39897C - omitting it causes erratic Flash read/write failures and watchdog resets. Add 100 nF decoupling on every VDD/VSS pin pair. Estimated bulk-current draw is up to 40 mA at 32 MHz; use a wide power trace from the LDO to the VDD pins.
Route the USB D+ (pin 94) and D- (pin 95) lines as a 90-ohm differential pair, with traces matched in length to within 2 mm. Place the 27-ohm series termination resistors within 4 mm of the MCU pins per USB 2.0 Full-Speed spec. Keep the D+/D- pair away from oscillator traces and switching power lines, and place a ferrite bead on VBUS (pin 96) if the device is bus-powered. Microchip's USB OTG design checklist in AN1341 should be reviewed before tape-out.
Configure the internal LPRC or SOSC oscillator for the RTCC to keep deep-sleep standby current below 100 nA. When using USB with VBUS detection, set the VBUS pin as an input and enable the internal pull-down to detect cable plug/unplug events. Wake-up from deep sleep via RTCC alarm requires the SOSC crystal (typically 32.768 kHz on pins SOSC1/SOSC2) to be present and stable. Estimated battery life on 2x AA alkaline (2500 mAh) at one wake per minute is 5-8 years depending on active-mode duty cycle.
Avoid using the legacy MPLAB C30 compiler; use MPLAB XC16 to access all PIC24FJ256GB110 errata fixes. Do not program flash above 2.0V VDD or below the temperature grade limit - below -40C the self-programming timings stretch and writes may fail silently. When using USB host mode, the VBUS pin must drive a 100 mA current-limited source capable of switching in 100 ms; use a dedicated load switch rather than GPIO.
معلومات الامتثال
Lead-free / RoHS compliant per Microchip product page and DigiKey listing. Not AEC-Q100 qualified - choose PIC24FJ256GB110-E/PF for automotive grade or external automotive-qualified PIC variants. Halogen-free status not explicitly stated in the verified data.
