PIC18F26J11-I/SP - 64KB Flash 48MHz 8-bit nanoWatt XLP MCU | Microchip
料号： PIC18F26J11-I/SP ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $5.2 | $5.20 |
| 10 | $4.68 | $46.80 |
| 100 | $4.16 | $416.00 |
| 500 | $3.74 | $1,870.00 |
| 1,000 | $3.32 | $3,320.00 |
PIC18F26J11-I/SP 概述
An 8-bit microcontroller (MCU) is a compact programmable processor that combines a CPU, non-volatile program memory, RAM, and peripherals on a single die. The PIC18 J-series sits in Microchip's mid-range 8-bit family, above baseline PIC16 and below the PIC24/dsPIC33 16-bit lines, offering a balance of cost, peripheral richness, and low-power performance suitable for consumer, industrial, and IoT applications.
Key features include 12 MIPS peak performance at 48MHz, Peripheral Pin Select (PPS) for flexible signal routing, and an internal voltage reference for ADC and comparator use. The 64KB Flash program memory holds 32K x 16 instruction words, and the hardware 8x8 multiplier accelerates basic math. Self-programmability enables in-field firmware upgrades via bootloader.
Architecturally, the PIC18F26J11 uses a modified Harvard architecture with separate program and data buses, an 8-bit ALU, and a 16-bit instruction set. The XLP technology combines multiple low-power modes (Run, Idle, Sleep, Deep Sleep) with switchable clock sources to minimize quiescent current when peripherals and CPU are idle.
Typical applications include USB HID peripherals, sensor hubs, battery-powered IoT nodes, industrial control panels, and consumer appliances. The Deep Sleep mode below 100nA and on-chip USB simplify remote sensor designs that need bus-powered operation with long battery shelf life.
When designing with this part, ensure decoupling capacitors are placed within 5mm of VDD/VSS pairs and follow Microchip's PCB layout guidelines for the SPDIP package. The 2.0V-3.6V supply requires level shifting if interfacing with 5V logic.
This page synthesizes distributor pricing, drop-in PIC18 family alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers quickly evaluate fit and sourcing options.
直接替换替代料： PIC18F26J11-I/SP ——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： PIC18F26J11-I/SP （相同外形与封装尺寸） ——差异在于 Package, ADC, Program Memory (Flash), Operating Temperature, Timers.
快速对比工具——选择替代料号进行并排对比：
PIC18F25J11-I/SP
✅ 直接替换✓ 有现货
$3.15 / 个
查看数据手册 →PIC18F26J13-I/SP
✅ 直接替换✓ 有现货
$2.18 / 个
查看数据手册 →PIC18F46J11-I/P
✅ 直接替换📋 参考替代料（不在目录中）
PIC18F26J11-I/SP 最大额定值与电气特性
| Architecture | 8-bit PIC18 J-series (modified Harvard) |
| Program Memory (Flash) | 64 KB (32K x 16 instruction words) |
| Data Memory (RAM) | 4 KB |
| Maximum CPU Speed | 48 MHz (12 MIPS) |
| Supply Voltage (VDD) | 2.0 V to 3.6 V |
| I/O Pins | 25 |
| ADC | 10-bit, 10-channel |
| USB | USB 2.0 Full-Speed (12 Mbps) with on-chip transceiver |
| UART | 2 |
| SPI | 2 |
| I2C (MSSP) | 2 |
| PWM Modules | 2 CCP, 1 ECCP |
| Timers | 4 (8/16-bit) |
| Comparators | 2 |
| 封装 | 28-pin SPDIP (SP), through-hole |
| 工作温度 | -40C to +85C (Industrial) |
| Low-Power Technology | nanoWatt XLP (Deep Sleep <100 nA typical) |
| Peripheral Pin Select (PPS) | Yes |
| RoHS 状态 | Compliant |
| MSL 等级 | Not applicable (through-hole) |
PIC18F26J11-I/SP 引脚配置
| 引脚 1 | RA0/AN0 — Digital I/O RA0, analog input AN0, RTCC |
| 引脚 2 | RA1/AN1 — Digital I/O RA1, analog input AN1 |
| 引脚 3 | RA2/AN2 — Digital I/O RA2, analog input AN2 |
| 引脚 4 | RA3/AN3 — Digital I/O RA3, analog input AN3 |
| 引脚 5 | RA4 — Digital I/O RA4 |
| 引脚 6 | RA5/AN4 — Digital I/O RA5, analog input AN4 |
| 引脚 7 | VDD — Positive power supply |
| 引脚 8 | VSS — Ground reference |
| 引脚 9 | RA7/OSC1 — Digital I/O RA7, oscillator input |
| 引脚 10 | RA6/OSC2 — Digital I/O RA6, oscillator output |
| 引脚 11 | RC0/SOSC — Digital I/O RC0, secondary oscillator |
| 引脚 12 | RC1/SOSC — Digital I/O RC1, secondary oscillator |
| 引脚 13 | RC2/CCP1 — Digital I/O RC2, CCP1 PWM |
| 引脚 14 | RC3 — Digital I/O RC3 |
| 引脚 15 | RC4/D- — Digital I/O RC4, USB D- |
| 引脚 16 | RC5/D+ — Digital I/O RC5, USB D+ |
| 引脚 17 | RC6 — Digital I/O RC6, UART TX |
| 引脚 18 | RC7 — Digital I/O RC7, UART RX |
| 引脚 19 | VSS — Ground reference |
| 引脚 20 | VDD — Positive power supply |
| 引脚 21 | RB0/AN12 — Digital I/O RB0, analog input AN12 |
| 引脚 22 | RB1/AN10 — Digital I/O RB1, analog input AN10 |
| 引脚 23 | RB2/AN8 — Digital I/O RB2, analog input AN8 |
| 引脚 24 | RB3/AN9 — Digital I/O RB3, analog input AN9 |
| 引脚 25 | RB4/AN11 — Digital I/O RB4, analog input AN11 |
| 引脚 26 | RB5 — Digital I/O RB5 |
| 引脚 27 | RB6/PGC — Digital I/O RB6, ICSP clock |
| 引脚 28 | RB7/PGD — Digital I/O RB7, ICSP data |
典型应用
PIC18F26J11-I/SP 适用于 6 应用s: USB HID Peripherals, Battery-Powered IoT Sensor Nodes, Industrial Control Panels, Consumer Appliance Interfaces, Medical Monitoring Devices, USB-to-UART / SPI / I2C Bridge Adapters.
USB HID Peripherals
The PIC18F26J11's integrated USB 2.0 Full-Speed transceiver (12 Mbps) and 64 KB Flash make it a strong fit for USB HID peripherals such as custom keyboards, mice, game controllers, and barcode scanners. With 12 MIPS throughput and ample program memory for HID class drivers, the MCU handles polling, descriptor parsing, and button matrix scanning at low cost. The on-chip USB PHY eliminates an external chip, and the 3.3V supply derived from VBUS powers the entire design without an LDO. Compared to PIC16 alternatives, the 18F26J11 offers more Flash headroom and the XLP Deep Sleep mode below 100 nA for battery-backed accessories.
推荐
Battery-Powered IoT Sensor Nodes
With Deep Sleep current below 100 nA typical and 2.0V-3.6V supply range, the PIC18F26J11 is well matched to battery-powered IoT sensors running from a single Li-ion or 2xAA battery. The 64 KB Flash hosts sensor fusion and OTA-bootloader code, while the 10-bit ADC and dual I2C/SPI ports connect to environmental sensors. RTCC-driven wakeups at programmable intervals allow years of operation on a small cell. The XLP nanoWatt technology and on-chip voltage reference minimize external components, making the part cost-competitive with Cortex-M0 alternatives in low-bandwidth applications.
推荐
Industrial Control Panels
The PIC18F26J11's 25 I/O pins, dual UART, dual SPI, and dual I2C make it a versatile control MCU for industrial panel interfaces, button/keypad scanners, and indicator controllers. The 2.0V-3.6V industrial-compatible supply tolerates standard 24V-to-3.3V regulator outputs, while the -40C to +85C operating range covers most factory environments. Peripheral Pin Select (PPS) lets designers remap UART/SPI signals to different pins, simplifying PCB layout for mixed-signal interfaces. The part's deterministic 8-bit architecture simplifies real-time control loops where timing predictability matters more than raw MIPS.
推荐
Consumer Appliance Interfaces
The PIC18F26J11 fits mid-range consumer appliances such as coffee machines, microwave keypads, and washing-machine HMIs where 8-bit processing is sufficient but USB programming and modern peripherals matter. The 4 KB RAM accommodates small touchscreen or character-LCD user-interface stacks, while the ECCP module drives LED dimming and buzzer tones. The 12 MIPS throughput handles button debouncing, menu logic, and fault detection without external ICs. Compared to PIC16 baselines, the larger Flash allows on-appliance diagnostics and error logging in production firmware.
推荐
Medical Monitoring Devices
For medical monitoring peripherals such as pulse-oximeter USB dongles, USB-connected thermometers, and wearable patches, the PIC18F26J11's on-chip USB, low-power Deep Sleep, and 10-bit ADC enable compact, low-cost designs. The MCU's 2.0V-3.6V range accommodates single-cell Li-ion battery chemistries common in medical wearables, while the XLP modes support multi-day operation between charges. Firmware can implement USB CDC for direct data transfer to PC medical software, and the 25 I/O pins drive multiple sensor front-ends. Note: medical device qualification typically requires IEC 60601 compliance beyond part-level specs.
推荐
USB-to-UART / SPI / I2C Bridge Adapters
The PIC18F26J11's USB device port plus dual UART/SPI/I2C peripherals make it an excellent firmware-defined bridge between a host PC and legacy or debug interfaces. Developers commonly use the part as a USB-to-UART adapter (CDC class), USB-to-SPI bridge for flashing microcontrollers, or USB-to-I2C adapter for EEPROM/sensor access. The 64 KB Flash fits USB stack plus application logic, while 4 KB RAM handles endpoint buffers. Cost advantage over dedicated bridge ICs is real when designers also need on-board intelligence.
推荐
推荐产品汇总
工程参考数据： PIC18F26J11-I/SP ——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 | PIC18F25J11-I/SP | PIC18F26J13-I/SP | PIC18F46J11-I/P |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-pin SPDIP (SP) | 28-pin SPDIP (SP) - same | 28-pin SPDIP (SP) - same | 40-pin PDIP (P) |
| Flash Memory | 64 KB | 32 KB (-50%) | 64 KB (same) | 64 KB (same) |
| RAM | 4 KB | 2 KB (-50%) | 4 KB (same) | 4 KB (same) |
| Maximum Clock Speed | 48 MHz | 48 MHz (same) | 48 MHz (same) | 48 MHz (same) |
| USB | USB 2.0 Full-Speed on-chip | USB 2.0 Full-Speed on-chip | USB 2.0 Full-Speed on-chip | USB 2.0 Full-Speed on-chip |
| I/O Pins | 25 | 25 (same) | 25 (same) | 34 (+9) |
| Deep Sleep Current | <100 nA typical | <100 nA typical | <100 nA typical | <100 nA typical |
| Supply Voltage | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V |
关键差异点
- On-chip USB 2.0 Full-Speed transceiver with 64 KB Flash （对比 PIC18F25J11-I/SP)
- nanoWalt XLP Deep Sleep below 100 nA （对比 PIC18F46J11-I/P)
- Enhanced peripherals versus earlier PIC18F2520 （对比 PIC18F2520-I/SO)
设计说明
Decouple both VDD pairs (pins 7/20 and 8/19) with 100nF ceramic capacitors placed within 5mm of each VDD/VSS pin pair, plus a bulk 4.7uF tantalum or ceramic capacitor. The PIC18F26J11's low supply voltage (2.0V-3.6V) means noisy USB rails can couple into the MCU supply; a ferrite bead + capacitor pi filter on VBUS-derived 3.3V is recommended when VDD comes directly from USB power. Estimated: at 48MHz active, core current is approximately 15 mA, so a regulator with 100 mA headroom is appropriate.
Place the ICSP header (PGC/RB6 on pin 27, PGD/RB7 on pin 28) on the PCB edge or test points accessible without removing other components, per Microchip development tool guidelines. The 28-pin SPDIP footprint is through-hole, so allow at least 0.6mm annular ring and 0.5mm drill for reliable wave or hand soldering. Keep the USB D+/D- traces (pins 15/16) matched within 2mm and as short as possible to meet USB 2.0 Full-Speed signal-integrity requirements. Add 15k pull-down resistors on D+/D- if USB compliance is required.
Do not exceed the 3.6V absolute maximum on any pin, including VDD; USB VBUS must be regulated to 3.3V before connecting to VDD. The PIC18F26J11's I/O are NOT 5V-tolerant - interfacing with 5V logic requires level translation. The Configuration bits must be set correctly for the internal oscillator and USB clock source, otherwise USB enumeration fails silently. Watchdog timer and Brown-out Reset should be enabled in production firmware to recover from lockup conditions.
合规信息
RoHS and lead-free compliant per Microchip product page; not AEC-Q100 qualified (choose automotive-grade PIC18 variants for AEC-Q100).
