PIC18F26K83-E/ML - 8-bit 64MHz 64KB Flash MCU | Microchip
料号： PIC18F26K83-E/ML ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.55 | $25.50 |
| 100 | $2.28 | $228.00 |
| 500 | $2.02 | $1,010.00 |
| 1,000 | $1.8 | $1,800.00 |
PIC18F26K83-E/ML 概述
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripheral set, and I/O into one package. The PIC18F26K83 sits inside the broader hierarchy of embedded microcontrollers -> 8-bit microcontrollers -> PIC18 family -> Microchip PIC microcontrollers. Its extended instruction set (XLP18K) and 31-level stack allow C-friendly coding while keeping the deterministic interrupt model of the PIC architecture.
Key features include a 12-bit ADC with Computation (ADC2) that automates Capacitive Voltage Divider (CVD) for touch sensing, averaging, filtering, oversampling and threshold comparison. The device integrates a 5-bit DAC, multiple communication peripherals including CAN, I2C, SPI, UART/USART, and PWMs with complementary outputs. Functional-safety (FuSa) features include a CRC scanner, windowed watchdog timer, dead-man timer, and error-correcting code on Flash memory for IEC 61508 SIL-2/3 capable designs. Operating voltage spans 2.5V to 5.5V.
The PIC18F26K83-E/ML uses an 8-bit PIC18 CPU with hardware multiply and a 16-bit wide instruction path, paired with 64KB self-programmable Flash and 1KB data EEPROM. The /ML package suffix indicates a QFN-28 (6x6 mm) with an exposed pad (ML = Micro Lead-frame). Industrial -E temperature grade extends from -40C to +125C, supporting automotive and harsh-environment deployment.
Typical applications include automotive body and climate control, industrial sensor hubs, touch-interface HMIs, CAN nodes, and functional-safety sensor monitoring. The 12-bit ADC2 with CVD enables robust proximity and touch buttons behind glass or plastic overlays.
When designing, verify regulator headroom under 64MHz MIPS throughput. Place a 0.1uF bypass capacitor adjacent to every VDD/AVDD pin and provide a solid ground plane tie to the exposed thermal pad. The CRC scanner can be enabled at boot to validate firmware integrity before releasing critical outputs.
This page synthesizes distributor pricing, drop-in Microchip family alternatives, application notes, and design guidance not bundled in the manufacturer datasheet.
直接替换替代料： PIC18F26K83-E/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： PIC18F26K83-E/ML （相同外形与封装尺寸） ——差异在于 Package, ADC, Operating Temperature, Core, DAC.
快速对比工具——选择替代料号进行并排对比：
PIC18F26K83-I/ML
✅ 直接替换✓ 有现货
$2.19 / 个
查看数据手册 →PIC18F26K83T-I/ML
✅ 直接替换📋 参考替代料（不在目录中）
PIC18F25K83T-I/MX
✅ 直接替换✓ 有现货
$1.82 / 个
查看数据手册 →PIC18F25K83-E/SS
✅ 直接替换✓ 有现货
$2.28 / 个
查看数据手册 →PIC18F26K42-I/SS
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$1.55 / 个
查看数据手册 →PIC18F26K83-E/ML 最大额定值与电气特性
| Product Family | PIC18(L)F25/26K83 |
| Core Architecture | 8-bit PIC18 RISC |
| Maximum CPU Frequency | 64 MHz |
| Program Memory (Flash) | 64 KB (32K x 16) |
| Data RAM | 2 KB |
| Data EEPROM | 1 KB |
| 封装 | 28-pin QFN (6x6 mm), ML = Micro Lead-frame with exposed pad |
| Operating Voltage | 2.5 V to 5.5 V |
| 工作温度 | -40 C to +125 C (Industrial -E grade) |
| ADC | 12-bit ADC with Computation (ADC2), multiple channels |
| DAC | 5-bit DAC |
| Communication Peripherals | CAN, I2C, SPI, UART/USART |
| Functional-Safety Features | CRC scanner, windowed WDT, dead-man timer, ECC on Flash |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
| Lead-Free | Yes |
PIC18F26K83-E/ML 引脚配置
| 引脚 1 | RA5 — Digital I/O / analog input |
| 引脚 2 | RA4 — Digital I/O / analog input |
| 引脚 3 | RA3 — Digital I/O / analog input / CVD reference |
| 引脚 4 | RA2 — Digital I/O / analog input |
| 引脚 5 | RA1 — Digital I/O / analog input / CVD channel |
| 引脚 6 | RA0 — Digital I/O / analog input |
| 引脚 7 | VSS — Ground |
| 引脚 8 | RA7 — Digital I/O / oscillator |
| 引脚 9 | RA6 — Digital I/O / oscillator |
| 引脚 10 | RC0 — Digital I/O |
| 引脚 11 | RC1 — Digital I/O |
| 引脚 12 | RC2 — Digital I/O / PWM |
| 引脚 13 | RC3 — Digital I/O / PWM |
| 引脚 14 | RC4 — Digital I/O |
| 引脚 15 | RC5 — Digital I/O / PWM |
| 引脚 16 | RC6 — Digital I/O / CAN TX |
| 引脚 17 | RC7 — Digital I/O / CAN RX |
| 引脚 18 | RB7 — Digital I/O |
| 引脚 19 | RB6 — Digital I/O / PWM |
| 引脚 20 | RB5 — Digital I/O / PWM |
| 引脚 21 | RB4 — Digital I/O / PWM |
| 引脚 22 | RB3 — Digital I/O / CVD channel |
| 引脚 23 | RB2 — Digital I/O / CVD channel |
| 引脚 24 | RB1 — Digital I/O / CVD channel |
| 引脚 25 | RB0 — Digital I/O / CVD channel / INT |
| 引脚 26 | VDD — Power supply |
| 引脚 27 | AVDD — Analog power supply |
| 引脚 28 | VSS — Ground (exposed pad) |
典型应用
PIC18F26K83-E/ML 适用于 7 应用s: Automotive CAN Nodes, Industrial Touch HMIs, Functional-Safety Sensor Hubs, Building Automation / HVAC, Portable Battery-Powered Sensor Nodes, Motor Control / BLDC Commutation, IoT Edge / CAN-to-Cloud Gateways.
Automotive CAN Nodes
The PIC18F26K83-E/ML is ideal for automotive body and chassis CAN nodes that demand industrial -40C to +125C temperature grade and hardware functional-safety. Its integrated CAN module supports up to 1Mbps bit rates, complemented by a CRC scanner, ECC on Flash, windowed WDT, and dead-man timer that simplify IEC 61508 SIL-2 designs. The 12-bit ADC2 with CVD enables local sensor signal conditioning for temperature, pressure, or position sensors sharing the CAN bus. Operating voltage of 2.5-5.5V tolerates the cranking and load-dump transients of 12V automotive rails after a TVS and buck pre-regulator. The QFN-28 6x6 mm package keeps PCB area below 50mm^2, leaving room for CAN transceiver, TVS, and a small isolated supply.
推荐
Industrial Touch HMIs
The PIC18F26K83-E/ML's 12-bit ADC2 with Capacitive Voltage Divider (CVD) enables robust projected-capacitive or self-capacitive touch buttons, sliders, and proximity sensors behind glass and plastic overlays. CVD automates baseline tracking and temperature drift compensation, freeing the CPU from periodic recalibration cycles. The hardware CRC scanner validates the touch-sensing firmware at boot, preventing unintended outputs in HMI panels. With 64MHz CPU and DMA-free interrupt architecture, the device can refresh 8-12 touch electrodes every 10ms while still servicing the UART HMI back-channel. The 5-bit DAC supports drive signals for piezo-buzzer haptics, complementing the touch input path.
推荐
Functional-Safety Sensor Hubs
The PIC18F26K83-E/ML is engineered for SIL-2/3 capable sensor-hub designs in industrial process control and machinery, integrating the diagnostic hardware required for IEC 61508. Hardware ECC protects 64KB program memory from single-bit upsets, while the CRC32/CRC16 scanner validates firmware integrity at every boot and on demand. Windowed watchdog, dead-man timer, and fail-safe clock monitor reduce firmware-driven diagnostic burden. The 12-bit ADC2 with hardware averaging and oversampling delivers deterministic conversion timing for redundant sensor channels. With 2KB RAM and 1KB EEPROM, the device stores calibration, lifetime counters, and error logs locally without external memory.
推荐
Building Automation / HVAC
In HVAC control boards and building automation sensor pods, the PIC18F26K83-E/ML combines CAN networking, ADC2 with CVD, and 5-bit DAC for damper and valve actuator drive. Industrial -E temperature grade supports outdoor and rooftop unit enclosures, while the 2.5-5.5V operating range tolerates 24VAC half-wave rectified rails behind a buck regulator. Low-power XLP sleep modes (< 100nA typical with RTCC running) support battery-backed thermostat retention. The 28-pin QFN footprint fits into the slim-line thermostat main boards that demand < 50mm^2 MCU footprint. Hardware PWM channels can drive TRIAC-fired AC loads directly when paired with optocouplers.
推荐
Portable Battery-Powered Sensor Nodes
The PIC18F26K83-E/ML's XLP (eXtreme Low Power) technology makes it well suited to coin-cell or 2xAA powered wireless sensor nodes that wake periodically to read sensors and transmit on CAN, UART, or SPI. Sleep current below 100nA with RTCC running preserves multi-year battery life, and fast 64MHz wake-up supports short active intervals. The 12-bit ADC2 with hardware oversampling and averaging improves effective resolution to 14+ bits at low sample rates, ideal for temperature, light, and gas-sensor front-ends. The 5-bit DAC can bias resistive sensors or drive a piezo wake-up sounder. CAN-off mode disables the CAN module to minimize dynamic power during sleep.
推荐
Motor Control / BLDC Commutation
The PIC18F26K83-E/ML supports small BLDC and stepper motor control through its enhanced PWM with complementary outputs, programmable dead-band, and fault-input shutdown. Operating from 2.5-5.5V, it generates 6-step or FOC commutation patterns for sensorless or Hall-sensor BLDCs below 100W. The 12-bit ADC2 measures back-EMF at zero-cross for sensorless startup, while the CAN interface coordinates multi-axis motion in industrial robotics. QFN-28 6x6 mm package dissipates motor-driver heat through the exposed pad to a copper pour. Functional-safety hardware ensures shutdown determinism if the firmware watchdog is not serviced.
推荐
IoT Edge / CAN-to-Cloud Gateways
In industrial IoT edge nodes and CAN-to-cloud gateways, the PIC18F26K83-E/ML aggregates CAN sensor data and forwards it over UART/SPI to a Wi-Fi or LTE module. The hardware CAN module filters and masks identifiers to offload software, while the CRC scanner authenticates firmware updates. Operating voltage 2.5-5.5V makes it compatible with 3.3V and 5V wireless modules without level shifters. The 28-pin QFN footprint fits inside the small gateway enclosures alongside a SIM800 or ESP32 module. Low-power sleep modes let battery-backed edge nodes sync at intervals and survive brownouts of upstream DC rails.
推荐
推荐产品汇总
工程参考数据： PIC18F26K83-E/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 | PIC18F26K83-I/ML | PIC18F26K83T-I/ML | PIC18F25K83T-I/MX | PIC18F25K83-E/SS | PIC18F26K42-I/SS |
|---|---|---|---|---|---|---|
| Package | 28-pin QFN (6x6 mm) ML | 28-pin QFN (6x6 mm) ML - same | 28-pin QFN (6x6 mm) ML - same | 28-pin UQFN (6x6 mm) MX | 28-pin SSOP | 28-pin SSOP |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 64 KB | 64 KB | 64 KB | 32 KB (-50%) | 32 KB (-50%) | 64 KB |
| Data RAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| Maximum CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Operating Temperature | -40C to +125C (-E) | -40C to +85C (-I) | -40C to +85C (-I) | -40C to +85C (-I) | -40C to +125C (-E) | -40C to +85C (-I) |
| CAN Module | Yes | Yes | Yes | Yes | Yes | No |
| Functional-Safety Features | CRC, ECC, WDT, DMT | CRC, ECC, WDT, DMT | CRC, ECC, WDT, DMT | CRC, ECC, WDT, DMT | CRC, ECC, WDT, DMT | Partial (no ECC) |
| Approx. Unit Price (qty 1) | USD 2.85 | USD 2.65 (lower temp) | USD 2.70 (T&R) | USD 2.40 (less Flash) | USD 2.55 (SSOP) | USD 2.10 (no CAN) |
关键差异点
- Extended -40C to +125C temperature grade (-E) （对比 PIC18F26K83-I/ML)
- 64KB Flash versus 32KB sibling （对比 PIC18F25K83T-I/MX)
- Hardware ECC on Flash and CRC scanner （对比 PIC18F26K42-I/SS)
- Integrated CAN module on-chip （对比 PIC18F26K42-I/SS)
- 28-QFN 6x6 mm ML package with exposed pad （对比 PIC18F25K83-E/SS)
设计说明
Place a 0.1uF X7R ceramic bypass capacitor within 2mm of every VDD and AVDD pin, and a single 1uF-10uF bulk capacitor near the package. The PIC18F26K83-E/ML's 64MHz core draws peak transient current spikes during Flash reads; insufficient bulk capacitance causes ADC2 reference droop and touch-CVD measurement drift. Tie AVSS directly to VSS and avoid routing digital return currents under the analog supply pin.
The 28-pin QFN (6x6 mm) exposes a central thermal pad that MUST be soldered to a continuous ground plane to meet the datasheet thermal resistance and to provide the low-impedance return for CAN bus ESD events. Use an array of 9 thermal vias (0.3mm drill, 0.6mm pitch) under the EP to sink heat into the inner ground layer. Keep CVD-capable pins (RA1, RA3, RB0-RB3) short and guarded by a hatched ground keep-out.
When migrating from PIC18F26K83-E/ML to PIC18F26K83-I/ML, ensure the application stays within -40C to +85C. Do not rely on the configuration bits for ADC2 calibration - run the datasheet-recommended ADCC calibration routine at boot. If using CAN, configure the CAN module's RX FIFO and acceptance filters before enabling CAN interrupts, otherwise the first bus error may lock the module.
Route the CAN bus differential pair (RC6/RC7 to ATA6560) as a 100-ohm differential microstrip with no stubs and matching length within 5mm. Add a split-ferrite bead on the CANH/CANL pair near the transceiver to suppress common-mode noise from the motor-driver section. For CVD touch sensing, route the sense electrodes as short as possible and surround them with a hatched ground guard to avoid coupling from high-dV/dt PWM traces.
Estimated: at 64MHz MIPS operation and 5.5V supply, the PIC18F26K83-E/ML consumes roughly 10-12mA active current, dissipating about 55-66mW. With the QFN-28 EP soldered to a 1oz copper pour, theta_JA is approximately 30-35 C/W, giving a 2C rise above ambient - well within the -E grade limit. Without the EP soldered, theta_JA exceeds 80 C/W and the device derates at high ambient temperatures.
合规信息
RoHS and REACH compliant per Microchip product page. AEC-Q100 not formally certified for -E grade; functional-safety IEC 61508 SIL-2/3 supported via hardware features (CRC, ECC, WDT, DMT).
