PIC16F1826-I/ML - 8-Bit 32MHz MCU, 3.5KB Flash, 28-QFN | Microchip
料号： PIC16F1826-I/ML ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.95 | $1.95 |
| 10 | $1.72 | $17.20 |
| 100 | $1.42 | $142.00 |
| 500 | $1.18 | $590.00 |
| 1,000 | $0.99 | $990.00 |
PIC16F1826-I/ML 概述
A PIC microcontroller is a compact, deterministic Harvard-architecture processor with on-chip Flash, RAM and peripherals, used as the embedded 'brain' in billions of sensor nodes, appliances and consumer devices. The PIC16F family sits in Microchip's mid-range 8-bit lineup, balancing code density, peripheral integration and cost for low-power, low-pin-count designs. Within that hierarchy, the PIC16F1826 belongs to the enhanced mid-range core (49 instruction set, 16-level stack) with nanoWatt XLP sleep currents as low as 20 nA.
Key features include 32 MHz internal oscillator accuracy, 14-channel 10-bit ADC, two PWM/SCCP modules, enhanced USART, MSSP (SPI/I2C), mTouch capacitive sensing hardware, and CTMU support. With 256 bytes RAM and 256 bytes EEPROM, the PIC16F1826-I/ML suits applications needing moderate code footprint, multiple serial interfaces, and touch or sensor front-ends while maintaining nanoamp-class sleep current for battery longevity.
The 28-QFN (6x6 mm) package integrates up to 25 I/O pins in a footprint small enough for compact wearables or sensor modules, while the industrial -40C to +85C temperature grade supports harsh consumer, industrial and white-goods deployments. The exposed pad enhances thermal dissipation and must be soldered to the PCB ground plane for rated performance.
Typical applications include capacitive-touch user interfaces, battery-powered sensor nodes, LED lighting controllers, small home appliances, and USB/HID bridges using the USART or MSSP peripherals. The combination of nanoWatt XLP sleep modes and mTouch capacitive sensing is a frequent pairing for sealed-key products.
Designers should pair the PIC16F1826 with a 0.1 uF VDD decoupling capacitor within 3 mm of each power pin, route the exposed pad to a continuous ground pour, and configure the configuration words (FOSC, WDTE, etc.) before code execution to match oscillator and watchdog intent. The MPLAB X IDE with XC8 compiler is the standard toolchain for development.
This page synthesizes current distributor pricing, drop-in PIC16F1826 alternatives, application notes and design considerations not always available in the manufacturer datasheet alone.
直接替换替代料： PIC16F1826-I/ML ——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： PIC16F1826-I/ML （相同外形与封装尺寸） ——差异在于 Package, Core Architecture, Operating Temperature, I/O Pins, ADC.
快速对比工具——选择替代料号进行并排对比：
PIC16F1827-I/ML
✅ 直接替换✓ 有现货
$1.55 / 个
查看数据手册 →PIC16F1823-I/ML
✅ 直接替换✓ 有现货
$1.85 / 个
查看数据手册 →PIC16F1825-I/ML
✅ 直接替换✓ 有现货
$0.92 / 个
查看数据手册 →PIC16F1826-I/SS
✅ 直接替换✓ 有现货
$1.18 / 个
查看数据手册 →PIC16F1826-I/ML 最大额定值与电气特性
| Core | PIC16 enhanced mid-range 8-bit |
| CPU Speed | 32 MHz (8 MIPS) |
| Program Memory (Flash) | 3.5 KB (2K x 14 words) |
| Data RAM | 256 bytes |
| Data EEPROM | 256 bytes |
| I/O Pins | Up to 25 |
| 封装 | 28-pin QFN (6x6 mm) |
| Operating Voltage | 1.8 V to 5.5 V |
| 工作温度 | -40 C to +85 C (Industrial) |
| ADC | 10-bit, 12 channels |
| PWM / CCP | 2x PWM/SCCP modules |
| Communication | EUSART, MSSP (SPI / I2C) |
| Special Features | nanoWatt XLP, mTouch capacitive sensing, CTMU, internal 32 MHz oscillator |
| Sleep Current | Typical 20 nA (XLP mode) |
| 安装类型 | Surface Mount |
| MSL 等级 | 1 |
| RoHS 状态 | Compliant |
PIC16F1826-I/ML 引脚配置
| 引脚 1 | RA3/AN3/C1IN+/T1G — GPIO RA3 / ADC channel 3 / comparator input / Timer1 gate |
| 引脚 2 | RA4/AN4/C1OUT/T1G/OSC2 — GPIO RA4 / ADC channel 4 / comparator output / Timer1 gate / osc output |
| 引脚 3 | RA5/MCLR/VPP — GPIO RA5 / Master Clear (reset) / programming voltage |
| 引脚 4 | RA6/OSC2/CLKO — GPIO RA6 / oscillator output / clock-out |
| 引脚 5 | RA7/OSC1/CLKI — GPIO RA7 / oscillator input / clock-in |
| 引脚 6 | VSS — Ground reference |
| 引脚 7 | RB0/AN12/INT/SRX — GPIO RB0 / ADC channel 12 / external interrupt / UART RX |
| 引脚 8 | RB1/AN10/STX — GPIO RB1 / ADC channel 10 / UART TX |
| 引脚 9 | RB2/AN8 — GPIO RB2 / ADC channel 8 |
| 引脚 10 | RB3/AN9/CCP2 — GPIO RB3 / ADC channel 9 / CCP2 PWM |
| 引脚 11 | RB4/AN11 — GPIO RB4 / ADC channel 11 |
| 引脚 12 | RB5/AN13 — GPIO RB5 / ADC channel 13 |
| 引脚 13 | RB6/PGC — GPIO RB6 / ICSP clock |
| 引脚 14 | RB7/PGD — GPIO RB7 / ICSP data |
| 引脚 15 | VSS — Ground reference |
| 引脚 16 | VDD — Positive supply voltage |
| 引脚 17 | RA0/AN0/C12IN0- — GPIO RA0 / ADC channel 0 / comparator input |
| 引脚 18 | RA1/AN1/C12IN1- — GPIO RA1 / ADC channel 1 / comparator input |
| 引脚 19 | RA2/AN2 — GPIO RA2 / ADC channel 2 |
| 引脚 20 | RC0/SCL1/SCK1 — GPIO RC0 / I2C clock / SPI clock |
| 引脚 21 | RC1/SDA1/SDI1 — GPIO RC1 / I2C data / SPI data in |
| 引脚 22 | RC2/SDO1 — GPIO RC2 / SPI data out |
| 引脚 23 | RC3/CCP1 — GPIO RC3 / CCP1 PWM |
| 引脚 24 | RC4 — GPIO RC4 |
| 引脚 25 | RC5 — GPIO RC5 |
| 引脚 26 | RC6/AN6 — GPIO RC6 / ADC channel 6 |
| 引脚 27 | RC7/AN7 — GPIO RC7 / ADC channel 7 |
| 引脚 28 | VDD — Positive supply voltage |
典型应用
PIC16F1826-I/ML 适用于 6 应用s: Capacitive-Touch User Interface, Battery-Powered Wireless Sensor Node, Small Appliance Controller, LED Lighting Controller, USB/HID Bridge via UART, Automotive Body Electronics (Sub-System).
Capacitive-Touch User Interface
The PIC16F1826-I/ML's mTouch capacitive sensing hardware and CTMU enable sealed touch panels with up to 12 channels without external touch ICs. It detects proximity and gesture events on glass or plastic overlays with sub-pF resolution, while the 32 MHz CPU runs averaging and debounce in real time. nanoWatt XLP sleep at 20 nA typical extends coin-cell lifetime between user interactions to years.
推荐
Battery-Powered Wireless Sensor Node
The PIC16F1826-I/ML suits coin-cell sensor nodes (temperature, humidity, door/window) thanks to 1.8 V minimum VDD, 20 nA typical sleep current and 32 MHz HFINTOSC that eliminates external crystals. The MSSP peripheral drives SPI/I2C sensors and sub-GHz transceivers; ADC channels read analog sensors directly. The 28-QFN's small footprint fits inside sensor housings smaller than 10x10 mm.
推荐
Small Appliance Controller
The PIC16F1826-I/ML drives small home appliances (coffee makers, fans, blenders) by combining 25 I/O for switch/LED/relay matrix, two PWM channels for motor speed control, and 12-channel 10-bit ADC for temperature or current sensing. Its industrial -40C to +85C rating and robust EEPROM parameter retention survive harsh kitchen/laundry environments. The MSSP drives segment LCD or character displays via SPI expanders.
推荐
LED Lighting Controller
The PIC16F1826-I/ML implements dimmable LED drivers by combining 2 PWM channels (color mixing or single-string dimming), 10-bit ADC for ambient light feedback, and EUSART for DMX-512 or proprietary wired control. With 1.8 V to 5.5 V operation, it runs from rectified mains auxiliary or battery backup during blackouts. nanoWatt XLP sleep is used in standby between DMX frames for under-100 uA quiescent draw.
推荐
USB/HID Bridge via UART
The PIC16F1826-I/ML bridges legacy UART peripherals (barcode scanners, GPS modules, industrial sensors) to USB hosts by feeding its EUSART into an external USB-UART IC (e.g., MCP2200, MCP2221). With 3.5 KB Flash, the MCU runs command parsing, response framing and protocol conversion. The 28-QFN is small enough to embed inside a USB dongle enclosure with a few external passives.
推荐
Automotive Body Electronics (Sub-System)
The PIC16F1826-I/ML handles body-electronics sub-systems like interior LED controllers, mirror adjusters, or seat sensors. With industrial -40C to +85C operation, 32 MHz performance, and PWM/ADC peripheral density, it manages multiple loads without external logic. The PIC16F version (vs LF) supports 5 V rails common in body controllers; AEC-Q100 screening is NOT performed, so use AEC-Q100 qualified PIC16F peers for full automotive deployment.
推荐
推荐产品汇总
工程参考数据： PIC16F1826-I/ML ——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 | PIC16F1827-I/ML | PIC16F1825-I/ML | PIC16F1823-I/ML |
|---|---|---|---|---|
| Package | 28-QFN (6x6 mm) | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 3.5 KB (2K x 14) | 7 KB (4K x 14) | 3.5 KB (2K x 14) | 2 KB (1K x 14) |
| RAM | 256 bytes | 384 bytes | 256 bytes | 128 bytes |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| I/O Pins | 25 | 25 | 17 (in 28-pin pkg) | 18 (in 28-pin pkg) |
| ADC Channels | 12 channels, 10-bit | 12 channels, 10-bit | 12 channels, 10-bit | 12 channels, 10-bit |
| Unit Price (qty 1000) | $0.99 | ~$1.10 | ~$0.95 | ~$0.85 |
关键差异点
- Balanced memory-to-pin ratio at 28-QFN （对比 PIC16F1823-I/ML)
- Memory-upgrade path within same package （对比 PIC16F1827-I/ML)
- nanoWatt XLP sleep current advantage （对比 PIC16F1825-I/ML)
设计说明
Place a 100 nF (0.1 uF) decoupling capacitor within 3 mm of each VDD pin (pins 16 and 28 on the 28-QFN) and a bulk 10 uF tantalum or ceramic capacitor on the VDD rail. For battery-powered designs, add a 100 nF + 10 uF pair on the battery terminal to suppress transient droop during RF transmission bursts. According to Microchip's PIC16F1826 datasheet (DS41391D), VDD must be stable within +/- 5% before MCLR rises for clean startup.
The 28-QFN package has an exposed thermal pad that MUST be soldered to the PCB ground plane for rated thermal and electrical performance. Stitch vias through the exposed pad to the inner ground layer on a 0.5 to 1.0 mm grid to provide thermal relief and low-impedance ground. Keep high-speed traces (SPI, PWM) short and routed over continuous ground pour to minimize EMI from the 32 MHz CPU harmonics.
Estimated: failure to configure FOSC, WDTE, LVP and other CONFIG words before code execution is the most common cause of 'dead' PIC16F1826 designs. Always set CONFIG1 FOSC = INTOSC for internal oscillator use, WDTE = OFF when not relying on the watchdog, and LVP = OFF if MCLR is used as a digital input to release RB5 for GPIO. According to Microchip's datasheet (DS41391D), default unprogrammed CONFIG reads as 'all ones', enabling LVP by default - this can lock out MCLR in production boards.
合规信息
RoHS and lead-free per Microchip product page; AEC-Q100 not qualified - choose AEC-Q100 screened variants (e.g., PIC16F1826-E/ML or automotive PIC16F peers) for full automotive deployment.
