PIC18LF8527T-I/PT - 8-bit 40MHz 48KB Flash MCU | Microchip
MPN: PIC18LF8527T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.11 | $7.11 |
| 10 | $6.42 | $64.20 |
| 100 | $5.74 | $574.00 |
| 500 | $5.18 | $2,590.00 |
| 1,000 | $4.65 | $4,650.00 |
PIC18LF8527T-I/PT Overview
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.
Drop-in alternatives for PIC18LF8527T-I/PT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC18LF8527T-I/PT (same form factor and footprint) — differing in ADC, Timers, Package, I/O Pins, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18LF8527-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18LF8525-I/PT
✅ Drop-In✓ In Stock
$5.48 / Unit
View Datasheet →PIC18LF8393-I/PT
✅ Drop-In✓ In Stock
$4.96 / Unit
View Datasheet →PIC18LF8390-I/PT
✅ Drop-In✓ In Stock
$2.1 / Unit
View Datasheet →PIC18F8527-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F8527T-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18LF8527T-I/PT Maximum Ratings & Electrical Characteristics
| 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 |
| Package | 80-TQFP (12x12 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (Industrial) |
| Low-Power Technology | nanoWatt XLP |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC18LF8527T-I/PT Pin Configuration
| Pin 1 | RC0 — Digital I/O / T1OSO / T1CKI |
| Pin 2 | RC1 — Digital I/O / T1OSI / CCP2 |
| Pin 3 | RC2 — Digital I/O / CCP1 |
| Pin 4 | RC3 — Digital I/O / SCL1 / SCK1 |
| Pin 5 | RC4 — Digital I/O / SDA1 / SDI1 |
| Pin 6 | RC5 — Digital I/O / SDO1 |
| Pin 7 | RC6 — Digital I/O / TX1 / CK1 |
| Pin 8 | RC7 — Digital I/O / RX1 / DT1 |
| Pin 9 | RD0 — Digital I/O / PSP0 |
| Pin 10 | RD1 — Digital I/O / PSP1 |
| Pin 11 | RD2 — Digital I/O / PSP2 |
| Pin 12 | RD3 — Digital I/O / PSP3 |
| Pin 13 | RD4 — Digital I/O / PSP4 |
| Pin 14 | RD5 — Digital I/O / PSP5 / PWM1 |
| Pin 15 | RD6 — Digital I/O / PSP6 / CCP2 |
| Pin 16 | RD7 — Digital I/O / PSP7 |
| Pin 17 | VSS — Ground |
| Pin 18 | VDD — Positive supply (2.0V-5.5V) |
| Pin 19 | RE0 — Digital I/O / AN5 / RD |
| Pin 20 | RE1 — Digital I/O / AN6 / WR |
| Pin 21 | RE2 — Digital I/O / AN7 / CS |
| Pin 22 | RE3 — Digital I/O / AN8 / MCLR (Reset) |
| Pin 23 | RA0 — Digital I/O / AN0 |
| Pin 24 | RA1 — Digital I/O / AN1 |
| Pin 25 | RA2 — Digital I/O / AN2 / VREF- |
| Pin 26 | RA3 — Digital I/O / AN3 / VREF+ |
| Pin 27 | RA4 — Digital I/O / T0CKI / C1OUT |
| Pin 28 | RA5 — Digital I/O / AN4 / SS1 / C2OUT |
| Pin 29 | RA6 — Digital I/O / OSC2 / CLKO |
| Pin 30 | RA7 — Digital I/O / OSC1 / CLKI |
| Pin 31 | VSS — Ground |
| Pin 32 | VDD — Positive supply (2.0V-5.5V) |
| Pin 33 | RB0 — Digital I/O / AN12 / INT0 |
| Pin 34 | RB1 — Digital I/O / AN10 / INT1 |
| Pin 35 | RB2 — Digital I/O / AN8 / INT2 |
| Pin 36 | RB3 — Digital I/O / AN9 / CCP2 |
| Pin 37 | RB4 — Digital I/O / AN11 / KBI0 |
| Pin 38 | RB5 — Digital I/O / KBI1 / PGEC (ICD) |
| Pin 39 | RB6 — Digital I/O / KBI2 / PGED (ICD) |
| Pin 40 | RB7 — Digital I/O / KBI3 |
| Pin 41 | VSS — Ground |
| Pin 42 | VDD — Positive supply (2.0V-5.5V) |
| Pin 43 | RF0 — Digital I/O / AN5 |
| Pin 44 | RF1 — Digital I/O / AN6 / C2OUT |
| Pin 45 | RF2 — Digital I/O / AN7 / C1OUT |
| Pin 46 | RF3 — Digital I/O / AN8 |
| Pin 47 | RF4 — Digital I/O / AN9 |
| Pin 48 | RF5 — Digital I/O / AN10 / CVREF |
| Pin 49 | RF6 — Digital I/O / AN11 |
| Pin 50 | RF7 — Digital I/O / SS2 |
| Pin 51 | RG0 — Digital I/O / ECCAS |
| Pin 52 | RG1 — Digital I/O / TX2 / CK2 |
| Pin 53 | RG2 — Digital I/O / RX2 / DT2 |
| Pin 54 | RG3 — Digital I/O / CCP3 |
| Pin 55 | RG4 — Digital I/O / CCP4 / SCK2 |
| Pin 56 | RG5 — Digital I/O / SDO2 |
| Pin 57 | RG6 — Digital I/O / SDA2 |
| Pin 58 | RG7 — Digital I/O / SCL2 |
| Pin 59 | RH0 — Digital I/O / AN16 |
| Pin 60 | RH1 — Digital I/O / AN17 |
| Pin 61 | RH2 — Digital I/O / AN18 |
| Pin 62 | RH3 — Digital I/O / AN19 |
| Pin 63 | RH4 — Digital I/O / AN20 |
| Pin 64 | RH5 — Digital I/O / AN21 |
| Pin 65 | RH6 — Digital I/O / AN22 |
| Pin 66 | RH7 — Digital I/O / AN23 |
| Pin 67 | RJ0 — Digital I/O |
| Pin 68 | RJ1 — Digital I/O / LEDA |
| Pin 69 | RJ2 — Digital I/O / LEDB |
| Pin 70 | RJ3 — Digital I/O / LEDC |
| Pin 71 | RJ4 — Digital I/O / LEDD |
| Pin 72 | RJ5 — Digital I/O / LEDE |
| Pin 73 | RJ6 — Digital I/O / TX3 |
| Pin 74 | RJ7 — Digital I/O / RX3 |
| Pin 75 | RK0 — Digital I/O / AN24 |
| Pin 76 | RK1 — Digital I/O / AN25 |
| Pin 77 | RK2 — Digital I/O / AN26 |
| Pin 78 | RK3 — Digital I/O / AN27 |
| Pin 79 | AVSS — Analog ground |
| Pin 80 | AVDD — Analog positive supply |
Typical Applications
PIC18LF8527T-I/PT is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for PIC18LF8527T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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) |
Key Differentiators
- Wide 2.0V-5.5V operating range (vs PIC18F8527T-I/PT)
- Pin-to-pin 80-TQFP compatibility with 5V variants (vs PIC18LF8393-I/PT)
- nanoWatt XLP sleep currents (vs PIC18F46K22-I/P)
Design Notes
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.
Compliance Information
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.
