PIC18LF8527T-I/PT - 8-bit 40MHz 48KB Flash MCU | Microchip
MPN: PIC18LF8527T-I/PT ✓ Hoạt độngPIC18LF8527T-I/PT Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho PIC18LF8527T-I/PT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC18LF8527T-I/PT (cùng hình factor và footprint) — khác nhau ở Package, ADC, Core Architecture, Operating Temperature, Timers.
PIC18LF8527-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18LF8525-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF8393-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF8390-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F8527-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F8527T-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18LF8527T-I/PT Tỷ lệ tối đa & tính chất điện
| 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 |
| Hộp | 80-TQFP (12x12 mm) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Low-Power Technology | nanoWatt XLP |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
Cấu hình chân PIC18LF8527T-I/PT
| Chân 1 | RC0 — Digital I/O / T1OSO / T1CKI |
| Chân 2 | RC1 — Digital I/O / T1OSI / CCP2 |
| Chân 3 | RC2 — Digital I/O / CCP1 |
| Chân 4 | RC3 — Digital I/O / SCL1 / SCK1 |
| Chân 5 | RC4 — Digital I/O / SDA1 / SDI1 |
| Chân 6 | RC5 — Digital I/O / SDO1 |
| Chân 7 | RC6 — Digital I/O / TX1 / CK1 |
| Chân 8 | RC7 — Digital I/O / RX1 / DT1 |
| Chân 9 | RD0 — Digital I/O / PSP0 |
| Chân 10 | RD1 — Digital I/O / PSP1 |
| Chân 11 | RD2 — Digital I/O / PSP2 |
| Chân 12 | RD3 — Digital I/O / PSP3 |
| Chân 13 | RD4 — Digital I/O / PSP4 |
| Chân 14 | RD5 — Digital I/O / PSP5 / PWM1 |
| Chân 15 | RD6 — Digital I/O / PSP6 / CCP2 |
| Chân 16 | RD7 — Digital I/O / PSP7 |
| Chân 17 | VSS — Ground |
| Chân 18 | VDD — Positive supply (2.0V-5.5V) |
| Chân 19 | RE0 — Digital I/O / AN5 / RD |
| Chân 20 | RE1 — Digital I/O / AN6 / WR |
| Chân 21 | RE2 — Digital I/O / AN7 / CS |
| Chân 22 | RE3 — Digital I/O / AN8 / MCLR (Reset) |
| Chân 23 | RA0 — Digital I/O / AN0 |
| Chân 24 | RA1 — Digital I/O / AN1 |
| Chân 25 | RA2 — Digital I/O / AN2 / VREF- |
| Chân 26 | RA3 — Digital I/O / AN3 / VREF+ |
| Chân 27 | RA4 — Digital I/O / T0CKI / C1OUT |
| Chân 28 | RA5 — Digital I/O / AN4 / SS1 / C2OUT |
| Chân 29 | RA6 — Digital I/O / OSC2 / CLKO |
| Chân 30 | RA7 — Digital I/O / OSC1 / CLKI |
| Chân 31 | VSS — Ground |
| Chân 32 | VDD — Positive supply (2.0V-5.5V) |
| Chân 33 | RB0 — Digital I/O / AN12 / INT0 |
| Chân 34 | RB1 — Digital I/O / AN10 / INT1 |
| Chân 35 | RB2 — Digital I/O / AN8 / INT2 |
| Chân 36 | RB3 — Digital I/O / AN9 / CCP2 |
| Chân 37 | RB4 — Digital I/O / AN11 / KBI0 |
| Chân 38 | RB5 — Digital I/O / KBI1 / PGEC (ICD) |
| Chân 39 | RB6 — Digital I/O / KBI2 / PGED (ICD) |
| Chân 40 | RB7 — Digital I/O / KBI3 |
| Chân 41 | VSS — Ground |
| Chân 42 | VDD — Positive supply (2.0V-5.5V) |
| Chân 43 | RF0 — Digital I/O / AN5 |
| Chân 44 | RF1 — Digital I/O / AN6 / C2OUT |
| Chân 45 | RF2 — Digital I/O / AN7 / C1OUT |
| Chân 46 | RF3 — Digital I/O / AN8 |
| Chân 47 | RF4 — Digital I/O / AN9 |
| Chân 48 | RF5 — Digital I/O / AN10 / CVREF |
| Chân 49 | RF6 — Digital I/O / AN11 |
| Chân 50 | RF7 — Digital I/O / SS2 |
| Chân 51 | RG0 — Digital I/O / ECCAS |
| Chân 52 | RG1 — Digital I/O / TX2 / CK2 |
| Chân 53 | RG2 — Digital I/O / RX2 / DT2 |
| Chân 54 | RG3 — Digital I/O / CCP3 |
| Chân 55 | RG4 — Digital I/O / CCP4 / SCK2 |
| Chân 56 | RG5 — Digital I/O / SDO2 |
| Chân 57 | RG6 — Digital I/O / SDA2 |
| Chân 58 | RG7 — Digital I/O / SCL2 |
| Chân 59 | RH0 — Digital I/O / AN16 |
| Chân 60 | RH1 — Digital I/O / AN17 |
| Chân 61 | RH2 — Digital I/O / AN18 |
| Chân 62 | RH3 — Digital I/O / AN19 |
| Chân 63 | RH4 — Digital I/O / AN20 |
| Chân 64 | RH5 — Digital I/O / AN21 |
| Chân 65 | RH6 — Digital I/O / AN22 |
| Chân 66 | RH7 — Digital I/O / AN23 |
| Chân 67 | RJ0 — Digital I/O |
| Chân 68 | RJ1 — Digital I/O / LEDA |
| Chân 69 | RJ2 — Digital I/O / LEDB |
| Chân 70 | RJ3 — Digital I/O / LEDC |
| Chân 71 | RJ4 — Digital I/O / LEDD |
| Chân 72 | RJ5 — Digital I/O / LEDE |
| Chân 73 | RJ6 — Digital I/O / TX3 |
| Chân 74 | RJ7 — Digital I/O / RX3 |
| Chân 75 | RK0 — Digital I/O / AN24 |
| Chân 76 | RK1 — Digital I/O / AN25 |
| Chân 77 | RK2 — Digital I/O / AN26 |
| Chân 78 | RK3 — Digital I/O / AN27 |
| Chân 79 | AVSS — Analog ground |
| Chân 80 | AVDD — Analog positive supply |
Ứng dụng tiêu biểu
PIC18LF8527T-I/PT phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18LF8527T-I/PT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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) |
Bảo phân biệt quan trọng
- Wide 2.0V-5.5V operating range (vsPIC18F8527T-I/PT)
- Pin-to-pin 80-TQFP compatibility with 5V variants (vsPIC18LF8393-I/PT)
- nanoWatt XLP sleep currents (vsPIC18F46K22-I/P)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
