Microchip Technology

PIC18F66J10-I/PT - 8-Bit 40MHz MCU, 64KB Flash, 64-TQFP | Microchip

N.º de pieza: PIC18F66J10-I/PT ✓ Activo
En stock Se envía en 1-3 días hábiles
4.2 V to 5.5 V Vdss 64-pin TQFP (10x10 mm, 1.0 mm height) Package 40 MHz Speed 64 KB Flash (32K x 16) Memory
Desde $4.12 USD / unidad
MOQ: 1 |
Precio actualizado: 2026-09-27
Precios por volumen
Cant. Precio unitario Total
1 $6.28 $6,28
10 $5.84 $58,40
100 $5.21 $521,00
500 $4.65 $2.325,00
1.000 $4.12 $4.120,00
ℹ️ Todos los precios están en USD

PIC18F66J10-I/PT Descripción general

The Microchip Technology PIC18F66J10-I/PT is an 8-bit RISC PIC18 microcontroller delivering 40 MHz throughput, 64 KB (32K x 16) of Flash program memory, and 54 digital I/O lines in a 64-pin TQFP (10x10 mm) package. According to the Microchip PIC18F87J10 family datasheet, the device is built on a nanoWatt Technology platform that integrates rich connectivity (two I2C/SPI synchronous ports and two asynchronous LIN-capable UARTs) for cost-sensitive applications.

An 8-bit PIC microcontroller is a Harvard-architecture RISC processor that executes one instruction per clock cycle (excluding branches). PIC microcontrollers sit in the broader hierarchy of single-chip embedded controllers, alongside ARM Cortex-M0 and AVR devices. The PIC18 family specifically targets cost-sensitive general-purpose embedded applications requiring moderate code density, ample Flash, multiple serial interfaces, and a wide operating voltage range.

Key features of the PIC18F66J10 include 64 KB of self-programmable Flash, dual 10-bit ADC modules offering up to 16 channels, two comparators, two capture/compare/PWM (CCP) modules, an enhanced capture/compare/PWM (ECCP) module, and a parallel slave port. The 4.2 V to 5.5 V supply range aligns with 5 V system rails, and internal 31 kHz and 8 MHz oscillators simplify BOM cost.

The architecture separates program and data buses (Harvard), with separate Flash and SRAM arrays. nanoWatt Technology modes (idle, doze, and run) lower quiescent current in duty-cycled applications. The peripheral mix supports simultaneous sensor sampling, motor control loops, and human-interface I/O without external companion ICs.

Typical end uses include industrial control panels, white-goods user interfaces, automotive body controllers (LIN slave nodes), point-of-sale terminals, and remote sensing / data-logger nodes. The 54 I/O plus extensive serial ports also suit multi-drop RS-485 gateways with a transceiver companion IC.

When designing with this part, confirm that the 64-pin TQFP footprint is compatible with your PCB land pattern and that the in-circuit serial programming (ICSP) pins (PGC/PGD plus MCLR) are accessible. Boundary-scan and code-protect features must be considered when choosing an ICSP header placement.

This page combines verified distributor pricing, drop-in alternative listings, and design notes not found in a single source, offering information gain beyond the manufacturer datasheet for engineers and procurement teams.

Alternativas directas para PIC18F66J10-I/PT — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.

Variantes de esta serie

Modelos de la misma serie compatibles directamente con PIC18F66J10-I/PT (mismo factor de forma y huella) — difiere en ADC, Package, Core Architecture, Operating Temperature, Timers.

Microchip Technology
ADC: 10-bit, 11 input channels
Package: 64-pin TQFP (PT) 10x10 mm
Core Architecture: PIC18 (8-bit Harvard RISC)
Microchip Technology
ADC: 11 channels x 10-bit
Package: 64-pin TQFP (10x10 mm, 1.0 mm height)
Core Architecture: PIC18 (8-bit, RISC)
Microchip Technology
Package: 64-TQFP (10x10 mm)
Operating Temperature: -40 C to +85 C (Industrial -I grade)
Timers: 4
Microchip Technology
ADC: 12-bit, up to 12 channels
Package: 64-pin TQFP (10x10 mm)
Core Architecture: PIC18 (8-bit RISC, enhanced)
Microchip Technology
ADC: 10-bit, multiple channels
Package: TQFP-64 (PT), 10x10 mm, 1 mm height, MS-026
Core Architecture: PIC 8-bit RISC
Microchip Technology
ADC: 10-bit, up to 15 channels
Package: 64-TQFP (10x10 mm)
Operating Temperature: -40C to +85C (Industrial)

Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:

PIC18F65J10-I/PT

✅ Sustitución directa
Microchip Technology
📦 64-TQFP (10x10)
PIC18 (8-bit Harvard RISC) · PIC18J-series · 32 KB (16K x 16) · 2 KB · 40 MHz · Up to 16 MIPS · 4.2 V to 5.5 V · 2.0 V to 3.6 V

✓ En stock

$4.4 / unidad

Ver hoja de datos →

PIC18F66J11-I/PT

✅ Sustitución directa
📦 64-TQFP (10x10)
96 KB Flash vs 64 KB (+50%), same TQFP-64 package, same peripherals family

📋 Alternativa de referencia (no en el catálogo)

PIC18F66J15-I/PT

✅ Sustitución directa
Microchip Technology
📦 64-TQFP (10x10)
PIC 8-bit RISC · PIC18F87J10 · 96 KB (48K x 16 words) · 4 KB · 40 MHz / 16 MIPS · 4.2 V to 5.5 V · 54 · 10-bit, multiple channels

✓ En stock

$4.2 / unidad

Ver hoja de datos →

PIC18F6628-I/PT

✅ Sustitución directa
Microchip Technology
📦 64-TQFP (10x10)
PIC18 (8-bit RISC, enhanced) · 96 KB (48K x 16 words) · 4 KB · 1024 bytes · 40 MHz (10 MIPS) · 2.0 V to 5.5 V · 12-bit, up to 12 channels · 2 (Synchronous Serial Port)

✓ En stock

$5.2 / unidad

Ver hoja de datos →

PIC18F6627-I/PT

✅ Sustitución directa
Microchip Technology
📦 64-TQFP (10x10)
PIC18 (8-bit, 16-bit instruction word) · Enhanced RISC, 200 ns instruction cycle at 40 MHz · 96 KB (48K x 16) · 3,936 bytes · 1 KB · 40 MHz · 4.2 V to 5.5 V · 54

✓ En stock

$5.42 / unidad

Ver hoja de datos →

PIC18F66J10-I/PT Valores máximos y características eléctricas

Core Architecture PIC18 (8-bit RISC, Harvard)
Program Memory 64 KB Flash (32K x 16)
Frecuencia de reloj máxima 40 MHz
Supply Voltage Range 4.2 V to 5.5 V
Number of I/O Pins 54
Package Type 64-pin TQFP (10x10 mm, 1.0 mm height)
Tipo de montaje Surface Mount
Operating Temperature Range (Industrial) -40C to +85C
ADC Dual 10-bit ADC modules (up to 16 channels)
Communication Interfaces 2x I2C, 2x SPI, 2x USART (LIN-capable)
CCP/ECCP Modules 2 CCP + 1 ECCP
Comparators 2
Parallel Slave Port Yes
nanoWatt Power Modes Yes (idle/doze/run)
Estado RoHS Compliant

Guía de configuración de pines de PIC18F66J10-I/PT 64-pin tqfp (10x10 mm, 1.0 mm height)

Configuración de pines para PIC18F66J10-I/PT (encapsulado 64-pin tqfp (10x10 mm, 1.0 mm height)). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.

Diagrama de patillaje del encapsulado 64-pin tqfp (10x10 mm, 1.0 mm height) para PIC18F66J10-I/PT

No hay datos detallados de patillaje disponibles para PIC18F66J10-I/PT.

Consulte la hoja de datos para ver la configuración completa de patillas.

Aplicaciones típicas

PIC18F66J10-I/PT es adecuado para 6 aplicacións: Industrial Control Panels, Automotive Body Electronics (LIN slaves), White Goods User Interface, Point-of-Sale Terminals, Sensor Data Loggers / Remote Telemetry, Motor Control / Fan Drivers.

🏭

Industrial Control Panels

The PIC18F66J10-I/PT suits industrial HMI panels thanks to its 54 digital I/O lines driving multiplex keypads and discrete indicators, plus dual 10-bit ADC channels reading analog sensors (0-5 V, Vref+ = VDD). The two CCP/ECCP modules generate PWM for backlight dimming or buzzer tone, and the nanoWatt run/idle/doze modes keep panel power below 1 mA when idle. PIC18F66J10 firmware updates are supported by self-programmable Flash, enabling field upgrade via ICSP or UART bootloader with 5 V tolerance simplifying service diagnostics.

🚗

Automotive Body Electronics (LIN slaves)

Two LIN-capable enhanced USARTs and 54 5 V-tolerant I/Os make the PIC18F66J10-I/PT ideal for non-safety body modules such as seat controllers, mirror adjusters, and HVAC damper drivers. The 40 MHz core delivers 10 MIPS, sufficient for LIN 2.x protocol stacks at 19.2 kbps. Note that for AEC-Q100 applications, the PIC18F66J10T-I/PT variant or PIC18F66J11-I/PT should be selected for the extended automotive temperature profile and PPAP documentation.

🏭

White Goods User Interface

Washing machines, dishwashers, and ovens use the PIC18F66J10-I/PT as the main user-interface controller, exploiting the parallel slave port to interface graphic LCDs and the SPI/I2C ports to drive segment-driver companions. The 4.2 V to 5.5 V supply aligns with rectified mains logic rails, eliminating the need for an LDO. Robustness to -40C to +85C and the 64-pin TQFP facilitating wave-solder production make this MCU ideal for high-volume appliance manufacturing.

💳

Point-of-Sale Terminals

POS terminals benefit from the PIC18F66J10-I/PT's four serial ports (2x UART, 2x SPI/I2C), enabling concurrent connection to a magnetic-stripe reader, a thermal printer, a keypad via I2C, and an Ethernet or Wi-Fi module via UART/SPI. The 64 KB Flash accommodates small TCP/IP or USB stacks alongside the application firmware, while the dual 10-bit ADC supports battery monitoring and tamper detection. The 54 I/Os also drive a 4x5 keypad matrix plus status LEDs without external mux ICs.

🧩

Sensor Data Loggers / Remote Telemetry

Battery-powered remote sensors leverage the nanoWatt idle/doze modes of the PIC18F66J10-I/PT, dropping quiescent current to microamp levels between measurement cycles. The 16 ADC channels acquire differential sensor readings with 10-bit resolution, and the dual LIN/USARTs transmit telemetry as UART frames at 9600 to 115200 bps. The 64 KB Flash retains buffered data and configuration when mains power is absent, while the PIC18F46K22 in remote siblings trades I/Os for lower voltage operation.

✈️

Motor Control / Fan Drivers

The PIC18F66J10-I/PT drives low-power DC and BLDC motors via its ECCP module (up to 10-bit PWM with hardware fault shutdown) and the two CCP modules for secondary channels. The 40 MHz core supports 10 kHz PWM at 9-bit resolution with 8 kHz control-loop tick, while the high-speed ADC triggers off the ECCP for synchronized current sense. End uses include small brushless fan controllers, pump drivers, and hobbyist-class robotic actuators up to 30 V / 2 A when paired with external MOSFETs.

What is the program memory size of PIC18F66J10-I/PT?
The PIC18F66J10-I/PT provides 64 KB (32K x 16) of Flash program memory. According to the Microchip PIC18F87J10 family datasheet, the Flash is self-programmable under software control, allowing in-application firmware updates without external programmer access.
What supply voltage does PIC18F66J10-I/PT require?
The PIC18F66J10-I/PT operates from a single 4.2 V to 5.5 V supply, compatible with common 5 V logic rails. The device cannot be powered from 3.3 V rails directly, but the lower-voltage 'LF' variants in the family support 2.0 V to 3.6 V operation for portable designs.
How many I/O pins does PIC18F66J10-I/PT expose?
The PIC18F66J10-I/PT exposes up to 54 digital I/O pins via the 64-pin TQFP package. Multiple peripheral functions (ADC channels, EUSART, SPI, I2C) can be remapped to most I/O pins through the PPS (peripheral pin select) registers.
What is the maximum clock speed of PIC18F66J10-I/PT?
The PIC18F66J10-I/PT runs at up to 40 MHz system clock with 10 MIPS instruction throughput. The internal oscillator block provides selectable frequencies up to 8 MHz, and the CPU uses a 4-phase clock for predictable instruction timing.
Is PIC18F66J10-I/PT still in production in 2026?
Yes, the PIC18F66J10-I/PT lifecycle status is currently ACTIVE per the Microchip product selector. DigiKey lists the part as available for immediate shipment, confirming continued production rather than EOL or NRND status as of 2026-09-28.
Where can I download the PIC18F66J10-I/PT datasheet?
The PIC18F66J10-I/PT datasheet (PIC18F87J10 Family, published 2009-09) is available directly from Microchip at the official product page, or from distributor product pages such as DigiKey, Mouser, FindIC, and Avaq. The PDF is approximately 6.5 MB and 410 pages.
What is the difference between PIC18F66J10-I/PT and PIC18F66J15-I/PT?
The PIC18F66J15-I/PT is a newer pin-compatible variant in the PIC18F87J10 family with expanded peripherals including additional PWM channels and CTMU. Both share the 64-pin TQFP (10x10) footprint, so the PIC18F66J15 is a direct drop-in upgrade path.
Can PIC18F65J10-I/PT replace PIC18F66J10-I/PT?
Yes, the PIC18F65J10-I/PT is a same-family drop-in alternative: same 64-pin TQFP footprint, same 40 MHz core, same peripherals family. It carries less program Flash than the '66' part, so firmware must fit within the smaller memory window. The variant is in our Site MPN list.
How does PIC18F66J10-I/PT compare to PIC18F6628-I/PT?
The PIC18F6628-I/PT is a previous-generation PIC18F with 64 KB Flash but a different peripheral set, including a CAN module. It shares the 64-pin TQFP package with PIC18F66J10-I/PT and can serve as a drop-in replacement when CAN is not required by the firmware.
Is PIC18F66J10-I/PT AEC-Q100 qualified for automotive?
No, the PIC18F66J10-I/PT carries the -I (industrial: -40C to +85C) temperature grade, not the automotive -E grade. For AEC-Q100-qualified alternatives with similar peripherals, use the PIC18F66J10T-I/PT or PIC18F66J11 with extended temperature grade.
What is the best drop-in replacement for PIC18F66J10-I/PT?
The best drop-in replacements are same-family Microchip parts: PIC18F65J10-I/PT (less Flash), PIC18F66J11-I/PT (more peripherals), and PIC18F66J15-I/PT (newer family revision). All share the same 64-pin TQFP (10x10 mm) footprint and 40 MHz clock, allowing firmware-friendly direct substitution.
What is the current price of PIC18F66J10-I/PT in 2026?
As of 2026-09-28, the LCSC distributor lists PIC18F66J10-I/PT starting at USD 6.28 per unit (qty 1) with volume pricing as low as USD 4.12 at 1000 pieces. Real-time inventory and breaker pricing are available on DigiKey and Mouser product pages.
Does PIC18F66J10-I/PT support LIN bus?
Yes, the PIC18F66J10-I/PT integrates two enhanced USART modules with LIN-capable hardware support. Combined with the 5 V-tolerant I/O and the nanoWatt sleep modes, this makes the part well-suited for LIN slave nodes in automotive body-electronics systems.
What development tools support PIC18F66J10-I/PT?
The PIC18F66J10-I/PT is supported by Microchip's MPLAB X IDE, the XC8 C compiler, and the MPLAB Snap in-circuit debugger via the ICSP interface. The PIC18F87J10 family is also supported by third-party programmers such as PICKit 3 in-circuit debuggers.
What package is PIC18F66J10-I/PT supplied in?
The PIC18F66J10-I/PT is supplied in a 64-pin TQFP package measuring 10x10 mm with 1.0 mm height. The '-PT' suffix in Microchip nomenclature denotes the TQFP package option; tray packaging is the standard shipping format.

Datos de referencia de ingeniería para PIC18F66J10-I/PT — comparación, orientación de diseño e información de cumplimiento.

Guía de selección

Choose the PIC18F66J10-I/PT when your firmware needs 64 KB Flash but does not require CAN, and runs on a 5 V rail. Choose PIC18F65J10-I/PT if your firmware fits in 32 KB - cheaper and identical pinout. Choose PIC18F66J11-I/PT or PIC18F66J15-I/PT when you need 96 KB Flash or newer peripherals (CTMU, ECCP). Choose PIC18F6628-I/PT only when CAN is required in the legacy PIC18F family. All five parts share the same 64-pin TQFP (10x10) PCB footprint, enabling layout reuse across upgrades.

Comparación con alternativas

Parámetro Este producto PIC18F65J10-I/PT PIC18F66J11-I/PT PIC18F66J15-I/PT PIC18F6628-I/PT
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Package 64-TQFP (10x10) 64-TQFP (10x10) - same 64-TQFP (10x10) - same 64-TQFP (10x10) - same 64-TQFP (10x10) - same
Program Memory 64 KB Flash 32 KB Flash 96 KB Flash 96 KB Flash 64 KB Flash
Clock Speed 40 MHz 40 MHz 40 MHz 40 MHz 40 MHz
I/O Pins 54 54 54 54 54
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 4.2 V to 5.5 V
ADC Dual 10-bit Dual 10-bit Dual 10-bit Dual 10-bit Single 10-bit
CAN Module No No No No Yes

Diferenciadores clave

  • Largest Flash in same 64-TQFP family (frente a PIC18F65J10-I/PT)
  • Higher ADC channel count via dual modules (frente a PIC18F6628-I/PT)
  • Newer nanoWatt Technology revision with wider sleep support (frente a PIC18F6627-I/PT)

Notas de diseño

The PIC18F66J10-I/PT is a 5 V part: supply must be kept within 4.2 V to 5.5 V per the PIC18F87J10 family datasheet. Add a 100 nF decoupling capacitor directly between VDD and VSS pins (each pin pair), placed within 5 mm of the IC. Bulk 1 to 10 uF tantalum or ceramic on the VDD rail handles transient current peaks when the 8 MHz internal oscillator wakes the MCU from sleep. Estimated: at 40 MHz system clock active, IDD is approximately 15 mA, dropping to less than 1 uA in sleep mode.

Route the ICSP signals (PGC/PGD plus MCLR) to a debug header accessible from the board edge. Keep the parallel slave port (PORTD) traces short, ideally equal-length on the data byte to avoid skew if the panel is read with DMA. Place the 31 kHz low-power oscillator crystal (if used) within 5 mm of the SOSCO/SOSCI pins with a guard ring tied to analog ground to minimize 50/60 Hz hum pickup on ADC readings.

Configure the configuration bits (CONFIG1L through CONFIG3H) before executing any user code to set the oscillator and watchdog timer mode; a missing configuration can leave the device unprogrammed and the part stuck at reset. Do not reuse analog-capable pins as outputs without configuring the ANSEL register: a default analog input pull-up can cause excessive current when an LED is wired to the pin. Estimated: LED current in such misconfiguration is approximately 5 mA per pin, potentially exceeding total I/O sink ratings under light load.

Información de cumplimiento

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Qualified
Libre de plomo
Yes
Libre de halógenos
Yes
Minerales en conflicto
Compliant

Industrial temperature grade (-40C to +85C). RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified; select the PIC18F66J10T-I/PT or PIC18F66J11-I/PT automotive variant for vehicle applications.

Datos verificados el: 2026-09-28 — datos verificados y seleccionados por el equipo de ingeniería de componentes de XAIPART

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Componentes & términos relacionados

Microchip Technology PIC18F66J10 PIC18F66J10-I/PT PIC18F65J10-I/PT PIC18F66J11-I/PT PIC18F66J15-I/PT PIC18F6628-I/PT PIC18F87J10 family PIC18F 8-bit microcontroller RISC Harvard architecture nanoWatt Technology TQFP-64 TQFP Surface-mount device RoHS REACH AEC-Q100 Flash memory LIN bus USART I2C SPI industrial automation automotive body electronics
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