PIC18F26J11T-I/SO - 8-Bit 48MHz 64KB Flash MCU 28-SOIC | Microchip
料号： PIC18F26J11T-I/SO ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $5.62 | $5.62 |
| 10 | $5.05 | $50.50 |
| 100 | $4.32 | $432.00 |
| 500 | $3.65 | $1,825.00 |
| 1,000 | $3.18 | $3,180.00 |
PIC18F26J11T-I/SO 概述
What is an 8-bit microcontroller? An 8-bit MCU is a small computer-on-a-chip that processes data in 8-bit words and is the workhorse of embedded control. Within the broader taxonomy, the PIC18F26J11 belongs to: microcontroller -> 8-bit MCU -> flash MCU -> PIC18 family -> PIC18 J-series -> PIC18F26J11 subgroup. The PIC18F26J11T-I/SO combines the mature PIC18 instruction set with the low-power J-series improvements, making it well suited for cost-sensitive applications that also demand long battery life.
Key differentiating features include a Peripheral Pin Select (PPS) unit that allows remapping of digital peripherals to multiple I/O pins, an internal 31 kHz to 8 MHz oscillator with PLL for flexible clocking, multiple serial interfaces (I2C, SPI, UART), a 10-bit ADC, and up to four hardware PWM/Capture-Compare modules. The non-T (no “T”) variant PIC18F26J11-I/SO shares the same die but ships in tube or tray packing; the “T” suffix here denotes Tape & Reel packaging, electrical specs are identical.
Architecturally, the PIC18F26J11T-I/SO uses Microchip’s enhanced Harvard architecture with separate program (Flash) and data (SRAM) buses, accelerating instruction fetch and data access in parallel. The included nanoWatt XLP features - Deep Sleep, ultra-low-power wake-up, and the ability to run peripherals while the core is asleep - make this device a strong fit for energy harvesting, sensor and remote-control designs.
Typical applications include USB HID peripherals (a natural fit for the J-series), industrial sensor nodes, low-power IoT edge devices, white goods and small appliance control, and remote controls / human-interface devices. Pairing the MCU with an MCP2200 or PICkit programmer accelerates firmware development.
When designing with this part, plan the analog and digital supply decoupling carefully. Place 100 nF ceramic bypass capacitors close to VDD/VSS pairs and consider a 10 µF bulk capacitor on the main rail. Keep analog VDD traces short and, if the USB transceiver is used, ensure the D+/D- traces are 90 Ω differential and matched in length to maintain signal integrity.
This page synthesizes distributor pricing, drop-in same-brand alternatives, and practical PCB design notes not consolidated on any single manufacturer or distributor page.
直接替换替代料： PIC18F26J11T-I/SO ——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： PIC18F26J11T-I/SO （相同外形与封装尺寸） ——差异在于 Package, ADC, Operating Temperature, Timers, I/O Pins.
快速对比工具——选择替代料号进行并排对比：
PIC18F26J11-I/SO
✅ 直接替换✓ 有现货
$2.18 / 个
查看数据手册 →PIC18F26J13T-I/SO
✅ 直接替换📋 参考替代料（不在目录中）
PIC18F25K22-I/SO
✅ 直接替换✓ 有现货
$1.78 / 个
查看数据手册 →PIC18F25J11-I/SP
✅ 直接替换✓ 有现货
$3.15 / 个
查看数据手册 →PIC18F24J11-I/SO
✅ 直接替换✓ 有现货
$1.49 / 个
查看数据手册 →PIC18F2550-I/SO
✅ 直接替换✓ 有现货
$4.1 / 个
查看数据手册 →PIC18F26J11T-I/SO 最大额定值与电气特性
| Core Processor | PIC |
| Core Size | 8-bit |
| Core Series | PIC18 J-series (XLP) |
| Program Memory | 64KB (32K x 16) Flash |
| RAM | 4KB |
| CPU Speed | 48 MHz (12 MIPS) |
| Supply Voltage (VDD) | 4.2 V to 5.5 V |
| I/O Pins | 25 |
| 封装 | 28-pin SOIC (7.50 mm, 0.295" body width) |
| 安装类型 | Surface Mount |
| 工作温度 | -40 °C to +85 °C (Industrial) |
| Connectivity | I2C, SPI, UART (EUSART), USB 2.0 Full-Speed |
| Peripherals | Brown-out Detect, PWM, WDT, Peripheral Pin Select (PPS) |
| Program Memory Type | Flash |
| MSL 等级 | 1 (unlimited) |
| Lead Free / RoHS | Lead-Free, RoHS Compliant |
PIC18F26J11T-I/SO 引脚配置
| 引脚 1 | MCLR — Master Clear (Reset) input, active low |
| 引脚 2 | RA0 — Digital I/O / Analog input / PPS remap |
| 引脚 3 | RA1 — Digital I/O / Analog input / PPS remap |
| 引脚 4 | RA2 — Digital I/O / Analog input / PPS remap |
| 引脚 5 | RA3 — Digital I/O / Analog input / Reference voltage |
| 引脚 6 | RA4 — Digital I/O / Timer0 clock input |
| 引脚 7 | RA5 — Digital I/O / PPS remap |
| 引脚 8 | VSS — Ground reference |
| 引脚 9 | RA7 — Digital I/O / Oscillator input |
| 引脚 10 | RA6 — Digital I/O / Oscillator output |
| 引脚 11 | RC0 — Digital I/O / PPS remap |
| 引脚 12 | RC1 — Digital I/O / PPS remap |
| 引脚 13 | RC2 — Digital I/O / PPS remap |
| 引脚 14 | RC3 — Digital I/O / PPS remap / USB D- (variant-dependent) |
| 引脚 15 | RC4 — Digital I/O / PPS remap / USB D+ (variant-dependent) |
| 引脚 16 | RC5 — Digital I/O / PPS remap |
| 引脚 17 | RC6 — Digital I/O / PPS remap / TX on EUSART |
| 引脚 18 | RC7 — Digital I/O / PPS remap / RX on EUSART |
| 引脚 19 | VSS — Ground reference (digital) |
| 引脚 20 | VDD — Positive supply 4.2V-5.5V (digital) |
| 引脚 21 | RB0 — Digital I/O / Interrupt-on-change / PPS remap |
| 引脚 22 | RB1 — Digital I/O / Interrupt-on-change / PPS remap |
| 引脚 23 | RB2 — Digital I/O / Interrupt-on-change / PPS remap |
| 引脚 24 | RB3 — Digital I/O / Interrupt-on-change / PPS remap |
| 引脚 25 | RB4 — Digital I/O / Interrupt-on-change / PPS remap |
| 引脚 26 | RB5 — Digital I/O / Interrupt-on-change / PPS remap |
| 引脚 27 | RB6 — Digital I/O / ICSP clock / PPS remap |
| 引脚 28 | RB7 — Digital I/O / ICSP data / PPS remap |
典型应用
PIC18F26J11T-I/SO 适用于 6 应用s: USB HID Peripherals, Battery-Powered Sensor Nodes, Industrial Control & Automation, Consumer Remote Controls, White Goods & Home Appliances, Test & Measurement Handhelds.
USB HID Peripherals
The PIC18F26J11T-I/SO integrates a USB 2.0 Full-Speed transceiver with internal D+ pull-up, eliminating an external USB transceiver and reducing BOM by ~USD 1 per board. Combined with 64KB Flash and 4KB RAM, the device can run Microchip's USB Framework (MCHPFSUSB) and a HID class driver directly, supporting keyboards, mice, game controllers and custom HID devices. The 28-SOIC footprint provides enough I/O for LEDs, buttons and feature expansion. NanoWatt XLP Deep Sleep draws sub-µA standby current, helping battery-powered HID peripherals meet idle-current targets like EU Lot 6 energy limits.
推荐
Battery-Powered Sensor Nodes
The PIC18F26J11T-I/SO suits wireless sensor nodes where multi-year battery life is required. Its Deep Sleep mode drops current below 100 nA with the RTCC running, while Peripheral Pin Select lets designers remap UART/SPI/I2C to free pins for an RF module. The 48 MHz core wakes in microseconds and executes sensor read/sleep cycles efficiently. With 4KB SRAM the device buffers measurement packets before RF transmission. The 28-SOIC package is easy to hand-prototype on breakout boards for field testing.
推荐
Industrial Control & Automation
In industrial control panels the PIC18F26J11T-I/SO delivers deterministic 8-bit control with the rugged 28-SOIC package rated for -40°C to +85°C. The Peripheral Pin Select remaps digital interfaces for UART/SPI/I2C sensor chains, and the 10-bit ADC scans analog feedback channels. The 12 MIPS throughput handles PID loops, while the 4KB SRAM keeps local state buffers without burdening the host PLC. Brown-out reset and WDT increase industrial reliability.
推荐
Consumer Remote Controls
Infrared and BLE remote controls benefit from the PIC18F26J11T-I/SO’s nanoWatt Deep Sleep (sub-µA) and Peripheral Pin Select routing flexibility. With 4KB RAM the firmware can manage multi-protocol IR codes (RC5, NEC, SIRC), and 64KB Flash holds large IR code libraries. The 28-SOIC variant also simplifies PCB layout for handheld enclosures. Industrial temp range supports automotive cabin and outdoor remote use.
推荐
White Goods & Home Appliances
Washing machines, dryers, microwave ovens and small kitchen appliances commonly use PIC18 J-series MCUs for user-interface and motor/valve control. The PIC18F26J11T-I/SO provides 25 I/O for keypads, 7-segment LED displays, relays and triac-fired heater elements. The 48 MHz core executes supervisory logic with deterministic timing, while 64KB Flash holds UI localization strings. AEC-Q100 is not required for indoor appliance use, making the industrial -40°C to +85°C grade sufficient.
推荐
Test & Measurement Handhelds
The PIC18F26J11T-I/SO fits portable digital multimeters and bench instruments where 64KB Flash stores calibration tables, measurement firmware and the user menu, while 4KB SRAM logs measurement sequences. Peripheral Pin Select lets engineers reuse pins for SPI LCD, ADC front-ends and serial interfaces without re-laying the PCB. The 48 MHz core runs math-heavy RMS/THD calculations, and the industrial temp grade helps in fluctuating environments. Battery life benefits from the J-series nanoWatt XLP current profile.
推荐
推荐产品汇总
工程参考数据： PIC18F26J11T-I/SO ——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 | PIC18F26J11-I/SO | PIC18F26J13T-I/SO | PIC18F25K22-I/SO | PIC18F25J11-I/SP | PIC18F24J11-I/SO | PIC18F2550-I/SO |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC | 28-SOIC | 28-SOIC | 28-SOIC | 28-SOIC | 28-SOIC | 28-SOIC |
| Program Memory (Flash) | 64KB | 64KB | 64KB | 32KB | 32KB | 16KB | 32KB |
| RAM | 4KB | 4KB | 3.6KB | 1.5KB | 4KB | 3.8KB | 2KB |
| Core / Speed | PIC18 8-bit @ 48MHz (12 MIPS) | PIC18 @ 48MHz (12 MIPS) | PIC18 @ 48MHz (12 MIPS) | PIC18 K-series @ 64MHz (16 MIPS) | PIC18 J @ 48MHz (12 MIPS) | PIC18 J @ 48MHz (12 MIPS) | PIC18 @ 48MHz (12 MIPS) |
| Operating Voltage | 4.2V - 5.5V | 4.2V - 5.5V | 4.2V - 5.5V | 1.8V - 5.5V | 4.2V - 5.5V | 4.2V - 5.5V | 4.2V - 5.5V |
| I/O Pins | 25 | 25 | 25 | 25 | 25 | 25 | 23 |
| USB | USB 2.0 Full-Speed integrated | USB 2.0 Full-Speed | USB 2.0 Full-Speed | No USB | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed (legacy) |
| Deep Sleep / nanoWatt XLP | Yes (J-series XLP) | Yes | Yes | Limited (no Deep Sleep) | Yes | Yes | No |
| Lifecycle Status | Active | Active | Active | Active | Active | Active | Active (legacy) |
关键差异点
- Active product with integrated USB 2.0 Full-Speed transceiver and nanoWatt XLP Deep Sleep （对比 PIC18F2550-I/SO)
- 64KB Flash + 4KB RAM in the lowest-cost 28-SOIC PIC18 J-series tier （对比 PIC18F25K22-I/SO)
- Complete J-series feature set including PPS for flexible peripheral routing （对比 PIC18F25J11-I/SP)
设计说明
The PIC18F26J11T-I/SO requires 4.2V-5.5V supply. Use 100 nF ceramic bypass capacitors as close as possible to each VDD/VSS pin pair (pin 8 GND, pin 20 VDD, plus AVDD if used). For USB-powered designs place a 10 µF bulk capacitor on the VBUS rail. Microchip's datasheet recommends keeping analog VDD separate from digital VDD when ADC accuracy matters; a ferrite bead between digital and analog supplies reduces switching noise injection by 10-20 dB.
Route the ICSP clock (RB6, pin 27) and ICSP data (RB7, pin 28) traces away from switching power and high-current AC traces; keep them under ~50 mm to avoid programming noise glitches. MCLR (pin 1) must have a 10 kΩ pull-up to VDD plus a 100 nF capacitor to ground for clean reset behavior during in-circuit programming. Without these components the part may fail to enter ICSP mode on freshly assembled boards.
Estimated power dissipation: VDD=5V, all 25 I/O driving 5mA outputs = ~250mW. The 28-SOIC package has a θJA of approximately 50-60 °C/W on a standard 2-layer FR4 board. At 25°C ambient, junction rise is ~15°C (well under the 125°C limit). For high-current GPIO designs drop VDD to 3.3V via the PIC18LF26J11 variant (2.0V-3.6V) or limit total I/O source/sink current to 200 mA per the datasheet absolute maximum.
USB D+ and D- traces must be 90 Ω differential with length matching within 1 mm; keep the pair routed over a continuous ground plane to maintain impedance. Place the 15 kΩ pull-down on D- and the internal pull-up (or external 1.5 kΩ on D+) as near the MCU pins as possible. Crosstalk of more than 50 mV on adjacent high-speed signals can cause eye-pattern failures at USB Full-Speed (12 Mbps).
Do not confuse PIC18F26J11 (4.2V-5.5V) with PIC18LF26J11 (2.0V-3.6V); the part marking is similar and incorrect selection at 3.3V will cause EEPROM corruption and brown-out resets. Always verify the operating voltage from the manufacturer datasheet before ordering. The PIC18F26J11T-I/SO ships without USB bootloader; you must program it via ICSP using a PICkit or ICD programmer.
合规信息
RoHS / REACH compliant per Microchip product page. Not AEC-Q100 qualified; for automotive USB HID select PIC18F26J11-I/SO with industrial temp grade -40°C to +85°C.
