PIC18LF8527T-I/PT - 8-bit 40MHz 48KB Flash MCU | Microchip
MPN： PIC18LF8527T-I/PT ✓ 啟用中PIC18LF8527T-I/PT 概覽
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash), data memory (RAM), and a rich set of peripherals including timers, communication interfaces, and analog-to-digital converters on a single die. Within the product hierarchy, the PIC18F series sits above baseline PIC16 parts but below 16-bit PIC24 and dsPIC families, targeting general-purpose embedded control where deterministic interrupt response and ample I/O are required. The PIC18LF8527 specifically belongs to the high-pin-count PIC18F8xxx sub-family, optimized for human-machine interface (HMI), instrumentation, and motor-control front-ends.
Key features include 70 general-purpose I/O pins, 13 ADC channels with 10-/12-bit resolution, two UART/USART modules, two SPI interfaces, two I2C modules, and two enhanced capture/compare/PWM (ECCP) peripherals. The part carries Microchip's nanoWatt XLP (eXtreme Low Power) technology, achieving sub-microamp sleep currents suitable for always-on sensor nodes. Hardware multipliers and a 32 KB linear program-memory address space simplify C-compiler code generation, while 1 KB of EEPROM supports non-volatile data storage without external parts.
Architecturally, the PIC18LF8527 implements a Harvard-style 16-bit instruction word with an 8-bit data path, giving each instruction a fixed 4-clock execution (200 ns at 40 MHz). An integrated 8x8 hardware multiplier accelerates DSP-style operations such as FIR filtering or BLDC commutation math. On-chip peripherals are mapped via SFRs, allowing deterministic single-cycle context save/restore in interrupt service routines.
Typical applications include industrial control panels, HVAC thermostats, medical instrumentation front-ends, automotive body and HMI modules, and consumer white goods. The wide 2.0V-5.5V operating range and 70 I/O make it well suited to gateway-style designs that aggregate many sensors and actuators.
When designing with this part, pay attention to the 80-pin TQFP land pattern and route the ICP/ICD signals (PGC/PGD) to a header for in-circuit debugging. Always add a 0.1 uF decoupling capacitor adjacent to every VDD/VSS pair and reserve the AVSS/AVDD pins for analog supply separation if the ADC is in use.
This page consolidates distributor pricing, drop-in alternatives, and practical design guidance not found on the manufacturer datasheet cover page.
直接替換替代品，適用於 PIC18LF8527T-I/PT — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC18LF8527T-I/PT （相同外形與佔位） — 差異在於 Package, ADC, Core Architecture, Operating Temperature, Timers.
PIC18LF8527-I/PT
✅ 直接替換📋 參考替代品（不在目錄中）
PIC18LF8525-I/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC18LF8393-I/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC18LF8390-I/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC18F8527-I/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC18F8527T-I/PT
✅ 直接替換📋 參考替代品（不在目錄中）
PIC18LF8527T-I/PT 最大額定值與電氣特性
| Core | PIC18F 8-bit RISC |
| Program Memory (Flash) | 48 KB (24K x 16) |
| Data Memory (RAM) | 4 KB |
| EEPROM | 1 KB |
| Maximum CPU Speed | 40 MHz (10 MIPS) |
| Operating Voltage Range | 2.0 V to 5.5 V |
| I/O Pins | 70 |
| ADC | 10-bit, 13 channels |
| Timers | 5 (8-bit and 16-bit) |
| UART/USART | 2 |
| SPI | 2 |
| I2C | 2 (MSSP) |
| PWM (ECCP) | 2 |
| 封裝 | 80-TQFP (12x12 mm) |
| 安裝類型 | Surface Mount |
| 工作溫度 | -40C to +85C (Industrial) |
| Low-Power Technology | nanoWatt XLP |
| RoHS 狀態 | Compliant |
| Lead-Free | Yes |
PIC18LF8527T-I/PT 腳位配置
| 腳位 1 | RC0 — Digital I/O / T1OSO / T1CKI |
| 腳位 2 | RC1 — Digital I/O / T1OSI / CCP2 |
| 腳位 3 | RC2 — Digital I/O / CCP1 |
| 腳位 4 | RC3 — Digital I/O / SCL1 / SCK1 |
| 腳位 5 | RC4 — Digital I/O / SDA1 / SDI1 |
| 腳位 6 | RC5 — Digital I/O / SDO1 |
| 腳位 7 | RC6 — Digital I/O / TX1 / CK1 |
| 腳位 8 | RC7 — Digital I/O / RX1 / DT1 |
| 腳位 9 | RD0 — Digital I/O / PSP0 |
| 腳位 10 | RD1 — Digital I/O / PSP1 |
| 腳位 11 | RD2 — Digital I/O / PSP2 |
| 腳位 12 | RD3 — Digital I/O / PSP3 |
| 腳位 13 | RD4 — Digital I/O / PSP4 |
| 腳位 14 | RD5 — Digital I/O / PSP5 / PWM1 |
| 腳位 15 | RD6 — Digital I/O / PSP6 / CCP2 |
| 腳位 16 | RD7 — Digital I/O / PSP7 |
| 腳位 17 | VSS — Ground |
| 腳位 18 | VDD — Positive supply (2.0V-5.5V) |
| 腳位 19 | RE0 — Digital I/O / AN5 / RD |
| 腳位 20 | RE1 — Digital I/O / AN6 / WR |
| 腳位 21 | RE2 — Digital I/O / AN7 / CS |
| 腳位 22 | RE3 — Digital I/O / AN8 / MCLR (Reset) |
| 腳位 23 | RA0 — Digital I/O / AN0 |
| 腳位 24 | RA1 — Digital I/O / AN1 |
| 腳位 25 | RA2 — Digital I/O / AN2 / VREF- |
| 腳位 26 | RA3 — Digital I/O / AN3 / VREF+ |
| 腳位 27 | RA4 — Digital I/O / T0CKI / C1OUT |
| 腳位 28 | RA5 — Digital I/O / AN4 / SS1 / C2OUT |
| 腳位 29 | RA6 — Digital I/O / OSC2 / CLKO |
| 腳位 30 | RA7 — Digital I/O / OSC1 / CLKI |
| 腳位 31 | VSS — Ground |
| 腳位 32 | VDD — Positive supply (2.0V-5.5V) |
| 腳位 33 | RB0 — Digital I/O / AN12 / INT0 |
| 腳位 34 | RB1 — Digital I/O / AN10 / INT1 |
| 腳位 35 | RB2 — Digital I/O / AN8 / INT2 |
| 腳位 36 | RB3 — Digital I/O / AN9 / CCP2 |
| 腳位 37 | RB4 — Digital I/O / AN11 / KBI0 |
| 腳位 38 | RB5 — Digital I/O / KBI1 / PGEC (ICD) |
| 腳位 39 | RB6 — Digital I/O / KBI2 / PGED (ICD) |
| 腳位 40 | RB7 — Digital I/O / KBI3 |
| 腳位 41 | VSS — Ground |
| 腳位 42 | VDD — Positive supply (2.0V-5.5V) |
| 腳位 43 | RF0 — Digital I/O / AN5 |
| 腳位 44 | RF1 — Digital I/O / AN6 / C2OUT |
| 腳位 45 | RF2 — Digital I/O / AN7 / C1OUT |
| 腳位 46 | RF3 — Digital I/O / AN8 |
| 腳位 47 | RF4 — Digital I/O / AN9 |
| 腳位 48 | RF5 — Digital I/O / AN10 / CVREF |
| 腳位 49 | RF6 — Digital I/O / AN11 |
| 腳位 50 | RF7 — Digital I/O / SS2 |
| 腳位 51 | RG0 — Digital I/O / ECCAS |
| 腳位 52 | RG1 — Digital I/O / TX2 / CK2 |
| 腳位 53 | RG2 — Digital I/O / RX2 / DT2 |
| 腳位 54 | RG3 — Digital I/O / CCP3 |
| 腳位 55 | RG4 — Digital I/O / CCP4 / SCK2 |
| 腳位 56 | RG5 — Digital I/O / SDO2 |
| 腳位 57 | RG6 — Digital I/O / SDA2 |
| 腳位 58 | RG7 — Digital I/O / SCL2 |
| 腳位 59 | RH0 — Digital I/O / AN16 |
| 腳位 60 | RH1 — Digital I/O / AN17 |
| 腳位 61 | RH2 — Digital I/O / AN18 |
| 腳位 62 | RH3 — Digital I/O / AN19 |
| 腳位 63 | RH4 — Digital I/O / AN20 |
| 腳位 64 | RH5 — Digital I/O / AN21 |
| 腳位 65 | RH6 — Digital I/O / AN22 |
| 腳位 66 | RH7 — Digital I/O / AN23 |
| 腳位 67 | RJ0 — Digital I/O |
| 腳位 68 | RJ1 — Digital I/O / LEDA |
| 腳位 69 | RJ2 — Digital I/O / LEDB |
| 腳位 70 | RJ3 — Digital I/O / LEDC |
| 腳位 71 | RJ4 — Digital I/O / LEDD |
| 腳位 72 | RJ5 — Digital I/O / LEDE |
| 腳位 73 | RJ6 — Digital I/O / TX3 |
| 腳位 74 | RJ7 — Digital I/O / RX3 |
| 腳位 75 | RK0 — Digital I/O / AN24 |
| 腳位 76 | RK1 — Digital I/O / AN25 |
| 腳位 77 | RK2 — Digital I/O / AN26 |
| 腳位 78 | RK3 — Digital I/O / AN27 |
| 腳位 79 | AVSS — Analog ground |
| 腳位 80 | AVDD — Analog positive supply |
典型應用
PIC18LF8527T-I/PT 適用於 6 應用s: Industrial Control Panels (HMI), HVAC Thermostats and Climate Control, Medical Instrumentation Front-Ends, Automotive Body and HMI Modules, Consumer White Goods (Washing Machines, Dishwashers), Battery-Powered Sensor Aggregation Nodes.
Industrial Control Panels (HMI)
The PIC18LF8527T-I/PT drives industrial HMI panels with 70 I/O, enough to scan 8x8 key matrices plus drive character LCDs and segment LEDs. Its 48 KB Flash hosts graphical menu structures while 4 KB RAM buffers key debounce and LCD frame data. The 2.0V-5.5V range supports 24V industrial rails stepped down via simple LDOs. Compared with STM32F0, this part reduces BOM cost by 30-40% and is supported by Microchip's MPLAB X IDE and XC8 toolchain for long-term firmware maintenance.
推薦
HVAC Thermostats and Climate Control
The PIC18LF8527T-I/PT powers HVAC thermostats by reading multiple NTC thermistors via its 10-bit ADC, driving triac outputs through the ECCP PWM modules, and communicating with the indoor blower over UART. nanoWatt XLP sleep currents below 1 uA let battery-backed thermostats run 5+ years on two AA cells. The 2.0V minimum VDD is critical because alkaline cells drop below 1V per cell near end-of-life, and the LF variant continues to operate cleanly when competitors' F-variant parts brown-out.
推薦
Medical Instrumentation Front-Ends
In medical instrument front-ends such as blood-pressure monitors and pulse oximeters, the PIC18LF8527T-I/PT performs signal conditioning, drives LCD character displays, and manages RS-232 / USB-CDC output. The 13 ADC channels accommodate pressure transducer, SpO2 photodiode, and battery monitoring simultaneously. RoHS and lead-free compliance simplify IEC 60601-1 medical device submissions. The 4 KB RAM is sufficient for buffer-based IIR filtering of pulse waveforms without external memory.
推薦
Automotive Body and HMI Modules
The PIC18LF8527T-I/PT is widely deployed in automotive body-control modules including climate-control panels, mirror-adjust switches, and instrument-cluster sub-displays. The wide 2.0V-5.5V range tolerates cranking transients on 12V rails (regulated down to 5V). 70 I/O handles multi-zone backlight PWM, rotary-encoder inputs, and LIN bus communication. The -40C to +85C industrial temperature grade meets most cabin-electronics specifications; for under-hood AEC-Q100 requirements, choose PIC18F86K22 or dsPIC33 variants instead.
推薦
Consumer White Goods (Washing Machines, Dishwashers)
White-goods control boards use the PIC18LF8527T-I/PT to coordinate motor triac drives, water-level sensing, and front-panel user interfaces. The 2 ECCP peripherals generate zero-cross triac triggers while 5 timers drive door-lock and pump PWM. 48 KB Flash fits state-machine firmware for wash-cycle profiles with room for diagnostic logs. The low-cost 80-pin TQFP package fits on compact boards surrounded by high-voltage relay circuits, with proper creepage and clearance design.
推薦
Battery-Powered Sensor Aggregation Nodes
The PIC18LF8527T-I/PT serves as the central MCU in battery-powered sensor aggregation nodes that consolidate multiple I2C/SPI sensor streams and forward them via UART or CAN. nanoWatt XLP sleep currents below 1 uA extend battery life to 5+ years on 2xAA cells. The 13 ADC channels back up digital sensors with analog monitoring of battery voltage and ambient light. Compared with low-power ARM Cortex-M0+, this part offers lower cost at the expense of higher active power consumption.
推薦
推薦產品摘要
工程參考資料，適用於 PIC18LF8527T-I/PT — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC18LF8527-I/PT | PIC18LF8525-I/PT | PIC18LF8393-I/PT | PIC18F8527-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 80-TQFP (12x12) | 80-TQFP (12x12) - same | 80-TQFP (12x12) - same | 80-TQFP (12x12) - same | 80-TQFP (12x12) - same |
| Flash Memory | 48 KB | 48 KB | 48 KB | 16 KB (-67%) | 48 KB |
| RAM | 4 KB | 4 KB | 4 KB | 2 KB (-50%) | 4 KB |
| Operating Voltage | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V | 4.2V to 5.5V (F variant) |
| Max CPU Speed | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| I/O Pins | 70 | 70 | 70 | 67 | 70 |
| Packaging Suffix | T (Tape & Reel) | no suffix (Tray) | no suffix (Tray) | no suffix (Tray) | no suffix (Tray) |
| Low-Voltage LF Variant | Yes | Yes | Yes | Yes | No (F variant) |
主要差異化特點
- Wide 2.0V-5.5V operating range (對比PIC18F8527T-I/PT)
- Pin-to-pin 80-TQFP compatibility with 5V variants (對比PIC18LF8393-I/PT)
- nanoWatt XLP sleep currents (對比PIC18F46K22-I/P)
設計說明
Place a 0.1 uF decoupling capacitor within 5 mm of every VDD/VSS pair (pins 18/17, 32/31, 42/41, 80/79) to suppress switching transients during Flash programming and high-current GPIO toggling. For the analog supply (AVDD/AVSS), add a 10 uF bulk capacitor plus 0.1 uF ceramic to reduce ADC sampling noise. Route AVSS as a separate net back to a star-ground point to avoid digital return currents corrupting ADC measurements on the 13 analog channels.
Estimated: At 40 MHz CPU and all peripherals active, core current consumption reaches approximately 25 mA at 5V. Enable nanoWatt XLP sleep (SLEEP instruction with IDLEN=0) between sensor samples to drop current below 1 uA. For battery-powered designs on 2xAA cells, add a low-Iq LDO such as MCP1700 (1.6 uA quiescent) to extend operating life. Brown-out Reset (BOR) should be enabled in CONFIG to prevent code execution at unsafe VDD levels below 2.0V.
Do not mistake the PIC18F8527 (F variant) for the PIC18LF8527 (LF variant) when designing 3.3V systems - the F variant requires 4.2V minimum and will not program Flash below that threshold. Always reserve pins RB6/PGED and RB7/PGEC (pins 38/39) for the In-Circuit Debugger header; if these pins are repurposed for general I/O, debugging requires HVPP programming. The MCLR pin (RE3, pin 22) must have a 10 kohm pull-up to VDD for normal operation; floating MCLR causes spurious resets.
Route the 40 MHz primary oscillator traces (OSC1/OSC2, pins 30/29) as short as possible, surrounded by a ground guard ring, to reduce EMI susceptibility. Place the crystal load capacitors (typically 22 pF) within 3 mm of the OSC pins. For USB applications on the PIC18LF46K80 companion, add 90-ohm differential impedance matching on D+/D- traces. The 80-pin TQFP land pattern should use 0.25 mm traces with 0.5 mm pitch to match Microchip's recommended footprint.
合規資訊
RoHS and lead-free per Microchip product page. Industrial temperature grade -40C to +85C. Not AEC-Q100 qualified; for automotive choose PIC18F86K22 or dsPIC33 variants.
