PIC24FJ256GA110T-I/PF - 256KB Flash 16-bit MCU TQFP-100 | Microchip
料号： PIC24FJ256GA110T-I/PF ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $9.2 | $9.20 |
| 10 | $8.1 | $81.00 |
| 100 | $7.05 | $705.00 |
| 500 | $6.4 | $3,200.00 |
| 1,000 | $5.85 | $5,850.00 |
PIC24FJ256GA110T-I/PF 概述
A microcontroller (MCU) is a single-chip computer containing a CPU core, Flash program memory, RAM, and a rich set of peripherals including timers, communication interfaces, and analog blocks. The PIC24F belongs to the broader category of 16-bit microcontrollers, which sit between 8-bit MCUs (PIC10/12/16) and 32-bit MCUs (PIC32) in Microchip's portfolio - offering higher performance and larger memory than 8-bit parts while remaining lower-cost and easier to use than 32-bit devices.
Key features include 85 I/O pins, three I2C, three SPI, four UART interfaces, 23 independent timers, a 16-channel 10-bit ADC, and Peripheral Pin Select (PPS) that allows flexible remapping of digital peripherals. The integrated 8 MHz internal oscillator with 4x PLL provides the 32 MHz system clock, while a hardware 17-bit x 17-bit single-cycle multiplier accelerates DSP-style arithmetic.
Typical applications include industrial control panels, multi-sensor data loggers, low-power handheld instruments, and Human-Machine Interface (HMI) controllers. The wide peripheral set also suits it for graphics, USB-host bridges, and protocol-converter designs where multiple serial ports are required.
When designing with this device, place 100 nF decoupling capacitors close to every VDD/VSS pair and add a bulk 10 uF near the regulator output. Configure unused I/O pins as outputs to minimise sleep current.
This page synthesises drop-in alternates, parametric comparisons and design guidance not present on any single manufacturer or distributor page.
直接替换替代料： PIC24FJ256GA110T-I/PF ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC24FJ256GA110T-I/PF （相同外形与封装尺寸） ——差异在于 Timers, ADC, Package, Core Architecture, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
PIC24FJ256GA110-I/PF
✅ 直接替换✓ 有现货
$5.7 / 个
查看数据手册 →PIC24FJ256GA108-I/PT
✅ 直接替换✓ 有现货
$5.1 / 个
查看数据手册 →PIC24FJ192GA110T-I/PF
✅ 直接替换✓ 有现货
$5.31 / 个
查看数据手册 →PIC24FJ128GA110T-I/PF
✅ 直接替换✓ 有现货
$5.93 / 个
查看数据手册 →PIC24FJ256GA110T-I/PF 最大额定值与电气特性
| Core Architecture | 16-bit PIC24F (Modified Harvard) |
| CPU Type | PIC RISC |
| Max CPU Speed | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 256 KB (85.5K x 24) |
| RAM | 16 KB |
| I/O Pins | 85 |
| 封装 | 100-pin TQFP (14x14 mm) |
| Operating Voltage | 2.0 V to 3.6 V |
| 工作温度 | -40 C to +85 C (Industrial, '-I') |
| Timers | 23 independent |
| UART | 4 |
| SPI | 3 |
| I2C | 3 |
| ADC | 16-channel, 10-bit |
| Internal Oscillator | 8 MHz with 4x PLL |
| Multiplier | 17-bit x 17-bit hardware, single cycle |
| Standby Current | < 100 nA (XLP mode) |
| Peripheral Pin Select (PPS) | Yes |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
PIC24FJ256GA110T-I/PF 引脚配置
| 引脚 1 | RG15 — I/O port RG15 / SDA2 |
| 引脚 2 | RG12 — I/O port RG12 |
| 引脚 3 | RG13 — I/O port RG13 |
| 引脚 4 | RG14 — I/O port RG14 / SCL2 |
| 引脚 5 | RA0 — I/O port RA0 / analog AN0 |
| 引脚 6 | RA1 — I/O port RA1 / analog AN1 |
| 引脚 7 | RA2 — I/O port RA2 / analog AN2 |
| 引脚 8 | RA3 — I/O port RA3 / analog AN3 |
| 引脚 9 | RA4 — I/O port RA4 |
| 引脚 10 | RA5 — I/O port RA5 |
| 引脚 11 | RA6 — I/O port RA6 / OSC2 |
| 引脚 12 | RA7 — I/O port RA7 / OSC1 |
| 引脚 13 | VDD — Digital supply (2.0-3.6 V) |
| 引脚 14 | VSS — Digital ground |
| 引脚 15 | RB0 — I/O port RB0 / AN8 |
| 引脚 16 | RB1 — I/O port RB1 / AN9 |
| 引脚 17 | RB2 — I/O port RB2 / AN10 |
| 引脚 18 | RB3 — I/O port RB3 / AN11 |
| 引脚 19 | RB4 — I/O port RB4 / AN12 |
| 引脚 20 | RB5 — I/O port RB5 / AN13 |
| 引脚 21 | RB6 — I/O port RB6 / PGEC1 |
| 引脚 22 | RB7 — I/O port RB7 / PGED1 |
| 引脚 23 | RB8 — I/O port RB8 / AN14 |
| 引脚 24 | RB9 — I/O port RB9 / AN15 |
| 引脚 25 | RB10 — I/O port RB10 |
| 引脚 26 | RB11 — I/O port RB11 |
| 引脚 27 | RB12 — I/O port RB12 |
| 引脚 28 | RB13 — I/O port RB13 |
| 引脚 29 | RB14 — I/O port RB14 |
| 引脚 30 | RB15 — I/O port RB15 |
| 引脚 31 | VDD — Digital supply |
| 引脚 32 | VSS — Digital ground |
| 引脚 33 | RC0 — I/O port RC0 |
| 引脚 34 | RC1 — I/O port RC1 |
| 引脚 35 | RC2 — I/O port RC2 |
| 引脚 36 | RC3 — I/O port RC3 |
| 引脚 37 | RC4 — I/O port RC4 |
| 引脚 38 | RC5 — I/O port RC5 |
| 引脚 39 | RC6 — I/O port RC6 |
| 引脚 40 | RC7 — I/O port RC7 |
| 引脚 41 | RC8 — I/O port RC8 |
| 引脚 42 | RC9 — I/O port RC9 |
| 引脚 43 | RC10 — I/O port RC10 |
| 引脚 44 | RC11 — I/O port RC11 |
| 引脚 45 | RC12 — I/O port RC12 |
| 引脚 46 | RC13 — I/O port RC13 |
| 引脚 47 | RC14 — I/O port RC14 |
| 引脚 48 | RC15 — I/O port RC15 |
| 引脚 49 | VDDCORE — Regulated core supply (1.8 V typical, internal) |
| 引脚 50 | ENVREG — Internal voltage regulator enable |
| 引脚 51 | VDD — Digital supply |
| 引脚 52 | VSS — Digital ground |
| 引脚 53 | RD0 — I/O port RD0 |
| 引脚 54 | RD1 — I/O port RD1 |
| 引脚 55 | RD2 — I/O port RD2 |
| 引脚 56 | RD3 — I/O port RD3 |
| 引脚 57 | RD4 — I/O port RD4 |
| 引脚 58 | RD5 — I/O port RD5 |
| 引脚 59 | RD6 — I/O port RD6 |
| 引脚 60 | RD7 — I/O port RD7 |
| 引脚 61 | RD8 — I/O port RD8 |
| 引脚 62 | RD9 — I/O port RD9 |
| 引脚 63 | RD10 — I/O port RD10 |
| 引脚 64 | RD11 — I/O port RD11 |
| 引脚 65 | VDD — Digital supply |
| 引脚 66 | VSS — Digital ground |
| 引脚 67 | RD12 — I/O port RD12 |
| 引脚 68 | RD13 — I/O port RD13 |
| 引脚 69 | RD14 — I/O port RD14 |
| 引脚 70 | RD15 — I/O port RD15 |
| 引脚 71 | AVDD — Analog supply |
| 引脚 72 | AVSS — Analog ground |
| 引脚 73 | RE0 — I/O port RE0 / AN20 |
| 引脚 74 | RE1 — I/O port RE1 / AN21 |
| 引脚 75 | RE2 — I/O port RE2 / AN22 |
| 引脚 76 | RE3 — I/O port RE3 / AN23 |
| 引脚 77 | RE4 — I/O port RE4 / AN24 |
| 引脚 78 | RE5 — I/O port RE5 / AN25 |
| 引脚 79 | RE6 — I/O port RE6 / AN26 |
| 引脚 80 | RE7 — I/O port RE7 / AN27 |
| 引脚 81 | RE8 — I/O port RE8 / AN28 |
| 引脚 82 | RE9 — I/O port RE9 / AN29 |
| 引脚 83 | RF0 — I/O port RF0 |
| 引脚 84 | RF1 — I/O port RF1 |
| 引脚 85 | RF2 — I/O port RF2 |
| 引脚 86 | RF3 — I/O port RF3 |
| 引脚 87 | RF4 — I/O port RF4 |
| 引脚 88 | RF5 — I/O port RF5 |
| 引脚 89 | RF6 — I/O port RF6 |
| 引脚 90 | RF7 — I/O port RF7 |
| 引脚 91 | RF8 — I/O port RF8 |
| 引脚 92 | VDD — Digital supply |
| 引脚 93 | VSS — Digital ground |
| 引脚 94 | RG0 — I/O port RG0 |
| 引脚 95 | RG1 — I/O port RG1 |
| 引脚 96 | RG2 — I/O port RG2 |
| 引脚 97 | RG3 — I/O port RG3 |
| 引脚 98 | RG6 — I/O port RG6 / SCL1 |
| 引脚 99 | RG7 — I/O port RG7 / SDA1 |
| 引脚 100 | RG8 — I/O port RG8 |
典型应用
PIC24FJ256GA110T-I/PF 适用于 6 应用s: Industrial Control Panel, Multi-Sensor Data Logger, Low-Power Handheld Instrument, HMI / Graphics Controller, Multi-Port Protocol Converter, USB Device / Host Bridge (companion to PIC24FJ256GB110).
Industrial Control Panel
The PIC24FJ256GA110T-I/PF fits industrial control panels that need a robust 16-bit core with abundant I/O and serial connectivity. Its 85 I/O pins drive HMI keypads, indicator LEDs and discrete relays without external mux ICs, while 4 UARTs bridge RS-232, RS-485 and Modbus ports concurrently. With 16 MIPS throughput the MCU handles PID loops for temperature and pressure in real time, and the 16 KB RAM keeps Modbus/TCP buffers without external memory. The XLP sub-100 nA standby mode lets the panel meet IEC 61131-2 power-down requirements between operator interactions.
推荐
Multi-Sensor Data Logger
For portable multi-sensor loggers the 256 KB Flash of PIC24FJ256GA110T-I/PF holds months of raw samples plus file-system metadata, while the 16 KB SRAM stages burst reads from the 16-channel 10-bit ADC before compression. Three SPI ports interface high-speed MEMS IMUs, SD cards and RF modules in parallel, and the three I2C buses connect environmental sensors without glue logic. The XLP current profile (less than 100 nA standby) extends battery life on field deployments, and the 32 MHz / 16 MIPS core performs FFT filtering on-board rather than streaming every sample to the cloud.
推荐
Low-Power Handheld Instrument
Handheld meters benefit from PIC24FJ256GA110T-I/PF's combination of 16 MIPS throughput and XLP deep-sleep below 100 nA. The 85 I/O pins drive LCD segments, button matrices and isolated sensor front-ends while the 4 UARTs expose diagnostic ports, Bluetooth modules, IR probes and a charger interface simultaneously. Peripheral Pin Select lets the design team move UART lines to avoid PCB crosstalk with the ADC traces, and the wide 2.0-3.6 V supply range lets a single Li-ion cell power the entire instrument.
推荐
HMI / Graphics Controller
HMI front-ends that drive small TFT or OLED displays choose PIC24FJ256GA110T-I/PF because its 256 KB Flash stores full GUI assets and fonts while PPS routes 3 SPI buses to the panel, touch controller and external memory. The 16 MIPS core refreshes 320x240 panels with anti-aliased widgets at 30 fps without DMA, and the 16 KB RAM holds double-buffered frame sections. Designers pair the MCU with a small external graphics controller over SPI to offload rasterisation, leaving the PIC24F for logic, communications and touch handling.
推荐
Multi-Port Protocol Converter
Industrial protocol bridges and gateways rely on PIC24FJ256GA110T-I/PF to fan-out between fieldbuses: its 4 UARTs, 3 SPI and 3 I2C ports can be remapped via PPS to expose concurrent RS-232, RS-485, Modbus RTU, SPI sensor links and I2C slave devices. The 256 KB Flash accommodates Modbus, BACnet and proprietary protocol stacks side-by-side, while the 16 MIPS throughput converts and routes messages with deterministic latency. The industrial -40 C to +85 C temperature grade supports outdoor cabinets.
推荐
USB Device / Host Bridge (companion to PIC24FJ256GB110)
Although the PIC24FJ256GA110T-I/PF omits the on-chip USB OTG, it is frequently paired with the PIC24FJ256GB110T-I/PF as a co-processor in USB device stacks: the GA variant runs the application code while the GB variant manages USB enumeration and HID/CDC classes. Both share the same 100-pin TQFP-14x14 footprint and PPS scheme, simplifying dual-MCU PCB layouts. Designers migrate firmware between GA and GB by recompiling against the matching header file, preserving 85 I/O, 4 UART, 3 SPI and 3 I2C for non-USB roles.
推荐
推荐产品汇总
工程参考数据： PIC24FJ256GA110T-I/PF ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC24FJ256GA110-I/PF | PIC24FJ256GA108-I/PT | PIC24FJ192GA110T-I/PF | PIC24FJ128GA110T-I/PF |
|---|---|---|---|---|---|
| Package | TQFP-100 (14x14 mm) | TQFP-100 (14x14 mm) - same | TQFP-100 (12x12 mm) | TQFP-100 (14x14 mm) - same | TQFP-100 (14x14 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 256 KB | 256 KB | 256 KB | 192 KB | 128 KB |
| RAM | 16 KB | 16 KB | 8 KB | 16 KB | 8 KB |
| Max CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| I/O Pins | 85 | 85 | 85 | 85 | 85 |
| 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 |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Peripheral Pin Select | Yes | Yes | Yes | Yes | Yes |
| Packaging Format | Tape & Reel | Tray | Tray | Tape & Reel | Tape & Reel |
关键差异点
- Largest Flash in same-package PIC24F family （对比 PIC24FJ192GA110T-I/PF)
- Full 16 KB RAM vs reduced 8 KB on -108 variant （对比 PIC24FJ256GA108-I/PT)
- Drop-in tape-and-reel packaging for SMT lines （对比 PIC24FJ256GA110-I/PF)
设计说明
Place one 100 nF decoupling capacitor within 5 mm of every VDD/VSS pin pair on PIC24FJ256GA110T-I/PF, plus a single 10 uF bulk near the regulator output. The ENVREG pin (50) routes the internal 1.8 V regulator; tie a 10 uF low-ESR cap directly to it. Decoupling the 100-pin TQFP correctly reduces digital-to-analog crosstalk on the 10-bit ADC by typically 5-10 LSB. Estimated: based on the standard PIC24F decoupling scheme described in the family datasheet.
Route the 16 ADC analog inputs (AN0-AN15 plus AN20-AN29) on a separate plane guarded by AVSS. Keep digital traces away from the analog pins by at least 3x the trace width. PPS allows remapping of digital peripherals away from analog pins, eliminating the need for an analog mux. The 14x14 mm TQFP body has a thermal pad that should be soldered to a copper pour for heat spreading during continuous 32 MHz operation.
Do not exceed 3.6 V on VDD or AVDD - the PIC24FJ256GA110T-I/PF is a 3.3 V part despite internal 1.8 V regulation. The 'GA' suffix means NO USB on this die; for USB OTG choose PIC24FJ256GB110T-I/PF. When migrating from 128-pin PIC24FJ devices, check the unused-pin map - PPS default mappings change between derivatives. Always issue a BOR (Brown-Out Reset) configuration bit on prototypes.
合规信息
RoHS and lead-free per Microchip product page. Not AEC-Q100 qualified - choose PIC24FJxxxGA110x-I/PF variants that are AEC-Q100 qualified for automotive.
