PIC18F8527-I/PT - 48KB Flash 8-bit MCU 70 I/O | Microchip
MPN: PIC18F8527-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.16 | $7.16 |
| 10 | $6.44 | $64.40 |
| 100 | $5.73 | $573.00 |
| 500 | $5.02 | $2,510.00 |
| 1,000 | $4.31 | $4,310.00 |
PIC18F8527-I/PT Overview
An 8-bit MCU is a microcontroller built around an 8-bit arithmetic logic unit and data bus, optimized for cost-sensitive, deterministic control tasks. The PIC18 family extends this with an enhanced RISC instruction set, hardware multiplier, and a 16-bit-wide instruction word; in the broader taxonomy it sits between 8-bit MCUs and higher-performance 16/32-bit controllers, and within the power-management hierarchy it functions as an embedded compute node that drives sensors, user interfaces, and communication peripherals. The PIC18F8527 specifically targets large low-power (nanoWatt) and connectivity applications that benefit from four serial ports (two MSSP for I2C/SPI plus two enhanced USARTs LIN-capable).
Key features include a 10-bit ADC with up to 16 channels, two analog comparators, two capture/compare/PWM modules, a parallel slave port, and nanoWatt power-saving modes (idle, sleep, deep sleep, run-time IDLE). The PIC18F8527 also integrates a CTMU module for capacitive touch sensing, an LCD driver option on related family members, and an on-chip 32kHz auxiliary oscillator for low-power timer operation. The wide operating range and rich peripheral set make it suitable for industrial control, automotive body and HMI modules, and consumer appliances.
The architecture uses a 16-bit modified Harvard structure with separate program and data paths, supporting 75 instructions including hardware multiply. Internal data EEPROM supports 1 million erase/write cycles typical, while flash endurance is rated 10k erase/write per row typical. The TQFP-80 package supports a -40C to +85C industrial temperature range and is qualified to standard commercial/industrial reliability expectations.
Typical applications include industrial control panels and PLCs, automotive body/HMI controllers, large-format user-interface boards with LCDs and keypads, point-of-sale terminals, and connected sensor hubs requiring multi-serial-port connectivity. The 70 I/O pins permit driving display rows, scanning key matrices, and bridging multiple serial buses without external expanders.
When designing with this MCU, allocate sufficient decoupling (100nF plus 10uF bulk near each VDD/VSS pair), ensure the MCLR reset network includes the recommended 10k pull-up and decoupling, and plan ISP/ICSP header access for in-circuit programming. Bootloader and self-programming flows require configuration-bit discipline; consult the device datasheet memory-mapped configuration registers before committing a layout.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC18F8527-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 PIC18F8527-I/PT (same form factor and footprint) — differing in Package, Core Architecture, ADC, Operating Temperature, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F8525-I/PT
✅ Drop-In✓ In Stock
$8.45 / Unit
View Datasheet →PIC18F67K90-I/PT
✅ Drop-In✓ In Stock
$7.55 / Unit
View Datasheet →PIC18F6722-I/PT
✅ Drop-In✓ In Stock
$5.32 / Unit
View Datasheet →PIC18F8627-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$9.05 / Unit
View Datasheet →PIC18F8722-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.5 / Unit
View Datasheet →PIC18F8527-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 (8-bit, enhanced RISC, modified Harvard) |
| Program Memory (Flash) | 48 KB (24K x 16) |
| RAM | 4 KB |
| EEPROM | 1 KB |
| Maximum CPU Frequency | 40 MHz (10 MIPS) |
| Supply Voltage (VDD) | 4.2 V to 5.5 V |
| I/O Pins | 70 |
| ADC | 10-bit, up to 16 channels |
| Analog Comparators | 2 |
| CCP/ECCP Modules | 2 |
| UART/USART (LIN-capable) | 2 (EUSART) |
| I2C / SPI (MSSP) | 2 |
| Parallel Slave Port | Yes |
| Package | 80-pin TQFP (PT), 12 x 12 mm, 1 mm height |
| Mounting Type | Surface Mount |
| Operating Temperature | -40 C to +85 C (industrial, -I suffix) |
| MSL Level | MSL 3 (per typical TQFP handling) |
| RoHS Status | Compliant |
| Instruction Set Width | 16-bit instructions, 8-bit data path |
PIC18F8527-I/PT Pin Configuration
| Pin 1 | RG4 — Port G bit 4 / CCP1 output / PWM output |
| Pin 2 | RG3 — Port G bit 3 / CCP2 output |
| Pin 3 | RG2 — Port G bit 2 |
| Pin 4 | RG1 — Port G bit 1 |
| Pin 5 | RG0 — Port G bit 0 |
| Pin 6 | RA7 — Port A bit 7 / OSC1 |
| Pin 7 | RA6 — Port A bit 6 / OSC2 |
| Pin 8 | RA5 — Port A bit 5 |
| Pin 9 | RA4 — Port A bit 4 |
| Pin 10 | RA3 — Port A bit 3 |
| Pin 11 | RA2 — Port A bit 2 |
| Pin 12 | RA1 — Port A bit 1 |
| Pin 13 | RA0 — Port A bit 0 |
| Pin 14 | VDD — Positive supply voltage |
| Pin 15 | VSS — Ground reference |
| Pin 16 | RF7 — Port F bit 7 |
| Pin 17 | RF6 — Port F bit 6 |
| Pin 18 | RF5 — Port F bit 5 / ADC |
| Pin 19 | RF4 — Port F bit 4 / ADC |
| Pin 20 | RF3 — Port F bit 3 / ADC |
| Pin 21 | RF2 — Port F bit 2 / ADC |
| Pin 22 | RF1 — Port F bit 1 / ADC |
| Pin 23 | RF0 — Port F bit 0 / ADC |
| Pin 24 | AVDD — Analog positive supply voltage |
| Pin 25 | AVSS — Analog ground reference |
| Pin 26 | RB7 — Port B bit 7 |
| Pin 27 | RB6 — Port B bit 6 |
| Pin 28 | RB5 — Port B bit 5 |
| Pin 29 | RB4 — Port B bit 4 |
| Pin 30 | RB3 — Port B bit 3 |
| Pin 31 | RB2 — Port B bit 2 |
| Pin 32 | RB1 — Port B bit 1 |
| Pin 33 | RB0 — Port B bit 0 / INT0 |
| Pin 34 | VDD — Positive supply voltage |
| Pin 35 | VSS — Ground reference |
| Pin 36 | RC7 — Port C bit 7 / RX2 |
| Pin 37 | RC6 — Port C bit 6 / TX2 |
| Pin 38 | RC5 — Port C bit 5 |
| Pin 39 | RC4 — Port C bit 4 |
| Pin 40 | RC3 — Port C bit 3 / SCL |
| Pin 41 | RC2 — Port C bit 2 / SDA |
| Pin 42 | RC1 — Port C bit 1 / CCP2 |
| Pin 43 | RC0 — Port C bit 0 |
| Pin 44 | RE7 — Port E bit 7 |
| Pin 45 | RE6 — Port E bit 6 |
| Pin 46 | RE5 — Port E bit 5 |
| Pin 47 | RE4 — Port E bit 4 |
| Pin 48 | RE3 — Port E bit 3 |
| Pin 49 | RE2 — Port E bit 2 |
| Pin 50 | RE1 — Port E bit 1 |
| Pin 51 | RE0 — Port E bit 0 |
| Pin 52 | VDD — Positive supply voltage |
| Pin 53 | VSS — Ground reference |
| Pin 54 | RD7 — Port D bit 7 |
| Pin 55 | RD6 — Port D bit 6 |
| Pin 56 | RD5 — Port D bit 5 |
| Pin 57 | RD4 — Port D bit 4 |
| Pin 58 | RD3 — Port D bit 3 |
| Pin 59 | RD2 — Port D bit 2 |
| Pin 60 | RD1 — Port D bit 1 |
| Pin 61 | RD0 — Port D bit 0 |
| Pin 62 | RH7 — Port H bit 7 |
| Pin 63 | RH6 — Port H bit 6 |
| Pin 64 | RH5 — Port H bit 5 |
| Pin 65 | RH4 — Port H bit 4 |
| Pin 66 | RH3 — Port H bit 3 |
| Pin 67 | RH2 — Port H bit 2 |
| Pin 68 | RH1 — Port H bit 1 |
| Pin 69 | RH0 — Port H bit 0 |
| Pin 70 | RJ7 — Port J bit 7 |
| Pin 71 | RJ6 — Port J bit 6 |
| Pin 72 | RJ5 — Port J bit 5 |
| Pin 73 | RJ4 — Port J bit 4 |
| Pin 74 | RJ3 — Port J bit 3 |
| Pin 75 | RJ2 — Port J bit 2 |
| Pin 76 | RJ1 — Port J bit 1 |
| Pin 77 | RJ0 — Port J bit 0 |
| Pin 78 | MCLR — Master clear / reset input |
| Pin 79 | OSC1 — Oscillator input |
| Pin 80 | OSC2 — Oscillator output |
Typical Applications
PIC18F8527-I/PT is suitable for 6 applications: Industrial Control Panels and PLCs, Automotive Body and HMI Modules, Point-of-Sale Terminals, Connected Sensor Hubs, Large-Format Display and Keypad Controllers, Home Appliance User-Interface Boards.
Industrial Control Panels and PLCs
The PIC18F8527-I/PT's 70 GPIO pins, 10-bit ADC with up to 16 channels, and dual LIN-capable EUSARTs map naturally onto industrial PLC and HMI panel designs. Its 48KB flash accommodates ladder-logic interpreters and Modbus RTU slave stacks generated by Microchip's MPLAB Code Configurator. Power consumption drops in nanoWatt idle modes between scan cycles, suiting 24V-sourced cabinet controllers. Two analog comparators enable current-loop and over-current threshold checks without external amps. The wide -40C to +85C industrial range supports panel mounting near motors.
Recommended
Automotive Body and HMI Modules
Body controllers, HVAC panels, and overhead console HMIs benefit from the PIC18F8527-I/PT's 70 I/O lines for switch matrix scanning, LED dimming via CCP PWM, and dual LIN-capable UARTs for body-network slaves. The 40MHz/10MIPS performance is sufficient for graphical menu logic and CAN/LIN gateway bridging. nanoWatt power-saving modes support always-on wake-on-switch architectures with microamp quiescent draw. The wide 4.2V to 5.5V rail tolerates post-regulation 12V automotive supplies. AEC-Q100 qualification is required only for safety-critical modules - choose Q-graded PIC18F variants there.
Recommended
Point-of-Sale Terminals
POS terminals combine a display, keypad, magnetic-stripe or NFC reader, and serial printer - all addressable from the PIC18F8527-I/PT's 70 GPIO pins and four serial ports. The 48KB flash holds menu logic, EMV transaction state machines, and USB CDC stacks over the MSSP SPI bridged to a USB-UART companion. The 4KB RAM supports small transaction buffers and LCD framebuffer pages. Hardware CTMU enables capacitive keypad scanning, removing external touch ICs. Power management benefits from nanoWatt idle during customer-browse states.
Recommended
Connected Sensor Hubs
Sensor hub designs require multiple serial buses to bridge UART sensors, I2C environmental sensors, and SPI displays - exactly the dual MSSP and dual EUSART combination on the PIC18F8527-I/PT. The 40MHz CPU supports sensor fusion loops at 100Hz with low jitter. nanoWatt deep-sleep cuts quiescent current when the hub is idle, suiting battery or energy-harvested supplies. The 70 I/O provide expansion for analog sensor arrays (up to 16 ADC channels) and digital interrupt lines. CTMU enables capacitive proximity buttons alongside traditional sensors.
Recommended
Large-Format Display and Keypad Controllers
Character LCDs, segment displays, and matrix keypads need dozens of pins - the PIC18F8527-I/PT delivers 70 GPIO sufficient for 8x40 LCDs and 8x8 key matrices without expanders. The CCP modules generate LCD contrast PWM and backlight dimming. The parallel slave port enables fast LCD updates from a host processor. Internal EEPROM stores user preferences and calibration constants. The 80-pin TQFP package breaks out every pin for routing flexibility on large front-panel PCBs. nanoWatt sleep retains LCD state while extending battery life on portable terminals.
Recommended
Home Appliance User-Interface Boards
Washing machines, dishwashers, and induction cooktops integrate rotary encoders, capacitive touch, LED status rings, and segment displays - all routable to the PIC18F8527-I/PT's 70 GPIO. nanoWatt modes support always-on wake-on-touch behavior, drawing microamps until user input. The 4.2V to 5.5V supply range is compatible with rectified 5V rails from offline SMPS subsystems. CTMU handles capacitive buttons, removing the need for a dedicated touch IC. Flash endurance supports frequent firmware updates in white-goods fleets.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F8527-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F8525-I/PT | PIC18F8627-I/PT | PIC18F8722-I/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 80-pin TQFP (PT), 12x12 mm | 80-pin TQFP (PT), 12x12 mm - same | 80-pin TQFP (PT) - same | 80-pin TQFP (PT) - same |
| Program Flash | 48 KB | 48 KB | 96 KB | 128 KB |
| RAM | 4 KB | 4 KB | 4 KB | 4 KB |
| Maximum Frequency | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| I/O Pins | 70 | 70 | 70 | 70 |
| Supply Voltage | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| EEPROM | 1 KB | 1 KB | 1 KB | 1 KB |
| Serial Ports (UART + I2C/SPI) | 2 UART + 2 MSSP | 2 UART + 2 MSSP | 2 UART + 2 MSSP | 2 UART + 2 MSSP |
| Lifecycle Status | Active | Active | Active | Active |
Key Differentiators
- Higher flash density for richer firmware stacks (vs PIC18F8525-I/PT)
- Direct pin compatibility with higher-density siblings (vs PIC18F8722-I/PT)
- Quad serial-port integration in a single 8-bit MCU (vs PIC18F6722-I/PT)
Design Notes
Place a 100nF ceramic decoupling capacitor as close as possible to each VDD/VSS pair (typically 3 pairs on the 80-pin TQFP) plus a single 10uF bulk tantalum or ceramic on the main VDD rail. The PIC18F8527-I/PT draws under 15mA active at 40MHz and microamps in sleep; bulk capacitance is mainly to support switching transients from PWM and CCP outputs rather than steady-state load. A ferrite bead in series with VDD can isolate analog AVDD noise from digital VDD when ADC accuracy is critical.
Route the ICSP/ICD pins (RB6/PGC, RB7/PGD, MCLR) to a 6-pin header compatible with PICkit 3/4 and MPLAB SNAP programmers. MCLR requires a 10k pull-up to VDD and a 100nF decoupling cap to ground for reliable in-circuit reset; avoid tying MCLR directly to VDD. Place the crystal or resonator within 1cm of OSC1/OSC2 with short traces and a grounded guard ring to minimize EMI coupling into the ADC inputs on RF0-RF7.
Do not exceed 5.5V on any VDD pin - the PIC18F8527-I/PT is a 5V part and over-voltage can permanently damage the internal flash charge pump. Configuration bits (CONFIG1H through CONFIG5H) must be set carefully, especially the oscillator, watchdog, and low-voltage-programming settings; an incorrect CONFIG can brick the part until a high-voltage programmer resets them. Always disable the watchdog timer during initial development or use the postscaler liberally.
When using ADC inputs on RF0-RF7, source impedance should remain below 2.5kohm to avoid acquisition-time errors and dynamic crosstalk. The 10-bit ADC is shared with digital port functions; disable digital input buffers on ADC channels using the ANSEL register to prevent injected digital noise. Add a small RC filter (100ohm plus 100nF) on sensitive analog inputs to suppress digital switching transients from adjacent port pins.
Compliance Information
RoHS compliant per Microchip product page. Industrial -I temperature grade (-40C to +85C). AEC-Q100 automotive qualification is NOT standard on this part - use PIC18F automotive variants for safety-critical modules. Halogen-free status not explicitly confirmed in verified web data.
