PIC18F66J16-I/PT - 8-bit 48MHz 96KB Flash MCU | Microchip
N.º da peça: PIC18F66J16-I/PT ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $8.92 | $8,92 |
| 10 | $8.03 | $80,30 |
| 100 | $7.14 | $714,00 |
| 500 | $6.25 | $3.125,00 |
| 1.000 | $5.36 | $5.360,00 |
PIC18F66J16-I/PT Visão geral
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, data memory, and programmable peripherals. The PIC18 family of MCUs from Microchip employs an enhanced Harvard architecture with 16-bit instructions and 8-bit data paths, balancing code density with execution efficiency. The 8-bit PIC MCU hierarchy proceeds: PIC10/12/16/18 -> PIC18 -> PIC18FxxJxx -> PIC18F87J11 family, with the J-series specifically designed for 3V and dual-voltage operation. Compared with 32-bit Cortex-M parts, 8-bit MCUs offer lower cost, simpler toolchains, and deterministic interrupt latency for motor control and human-interface applications.
Key features of the PIC18F66J16 include nanoWatt power management with multiple low-power sleep modes, an internal 8 MHz oscillator, hardware RTCC, a 10-bit ADC with up to 15 channels, two analog comparators, and an enhanced Flash program memory with word-write capability for EEPROM emulation. The four- serial-port design (2x MSSP for I2C/SPI, 2x EUSART for UART) targets designs requiring simultaneous communication to displays, sensors, and other microcontrollers.
The PIC18F66J16 belongs to the PIC18F87J11 family (which includes PIC18F66J11, PIC18F66J15, and PIC18F66J16 variants) sharing the same peripheral set, pinout, and 64/80-pin TQFP package options. The I/PT industrial-grade variant operates across -40C to +85C, supports 2.0V to 3.6V core voltage (with 5V-tolerant I/O via internal level shifters in selected configurations), and is supplied in industrial temperature grade. The 448-page datasheet documents instruction set, peripheral operation, and timing characteristics.
Typical applications include industrial control panels, USB-to-UART bridges, sensor hubs, low-power embedded displays, and 3V battery-powered sensor nodes. Its combination of 96 KB Flash and four serial channels makes it well-suited to gateway and protocol-bridge designs.
When designing with the PIC18F66J16, ensure that the supply rail stays within the 2.0V-3.6V core range and confirm that your in-circuit debugger (ICD 3, PICkit 4, MPLAB Snap) supports this device revision before committing to firmware.
This page synthesizes distributor pricing, drop-in alternatives, and design notes not found in the manufacturer datasheet alone.
Alternativas drop-in para PIC18F66J16-I/PT — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC18F66J16-I/PT (mesmo formato e footprint) — diferindo em Operating Temperature, Package, I/O Pins, Program Memory (Flash), MSL Level.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC18F66J15-I/PT
✅ Drop-In✓ Em estoque
$4.2 / unidade
Ver ficha técnica →PIC18F66J15T-I/PT
✅ Drop-In✓ Em estoque
$6.72 / unidade
Ver ficha técnica →PIC18F66J11T-I/PT
✅ Drop-In✓ Em estoque
$4.61 / unidade
Ver ficha técnica →PIC18F66J16-I/PT Classificações máximas e características elétricas
| Core | PIC18 (8-bit RISC) |
| Program Memory (Flash) | 96 KB (48K x 16) |
| Data RAM | 3936 bytes |
| Maximum CPU Speed | 48 MHz |
| Performance (MIPS) | 10 MIPS |
| Operating Voltage (Core) | 2.0 V to 3.6 V |
| Temperatura de operação | -40 C to +85 C (Industrial) |
| Digital I/O Pins | 51 (per Mouser listing) |
| I/O Ports | 54 (per Digchip listing) |
| UART / EUSART | 2 |
| Synchronous Serial Ports (MSSP / I2C / SPI) | 2 |
| Internal Oscillator | 8 MHz |
| Encapsulamento | TQFP-64 (PT) 10x10 mm |
| Tipo de montagem | Surface Mount |
| Nível MSL | 3 (168 hours) |
| Status RoHS | Compliant |
| Lead-Free | Yes |
Configuração de pinos do PIC18F66J16-I/PT
| Pino 1 | RC0 — Digital I/O / analog input |
| Pino 2 | RC1 — Digital I/O / analog input |
| Pino 3 | RC2 — Digital I/O / analog input |
| Pino 4 | RC3 — Digital I/O / analog input |
| Pino 5 | RC4 — Digital I/O / analog input |
| Pino 6 | RC5 — Digital I/O / analog input |
| Pino 7 | RC6 — Digital I/O / TX2 |
| Pino 8 | RC7 — Digital I/O / RX2 |
| Pino 9 | RE0 — Digital I/O |
| Pino 10 | RE1 — Digital I/O |
| Pino 11 | RE2 — Digital I/O |
| Pino 12 | RE3 — Digital I/O |
| Pino 13 | RE4 — Digital I/O |
| Pino 14 | RE5 — Digital I/O |
| Pino 15 | RE6 — Digital I/O |
| Pino 16 | RE7 — Digital I/O |
| Pino 17 | VDD — Positive supply (2.0-3.6V) |
| Pino 18 | VSS — Ground |
| Pino 19 | RA0 — Digital I/O / analog input |
| Pino 20 | RA1 — Digital I/O / analog input |
| Pino 21 | RA2 — Digital I/O / analog input |
| Pino 22 | RA3 — Digital I/O / analog input |
| Pino 23 | RA4 — Digital I/O / analog input |
| Pino 24 | RA5 — Digital I/O / analog input |
| Pino 25 | RA6 — Digital I/O / oscillator |
| Pino 26 | RA7 — Digital I/O / oscillator |
| Pino 27 | VSS — Ground |
| Pino 28 | VDD — Positive supply |
| Pino 29 | RB0 — Digital I/O / interrupt-on-change |
| Pino 30 | RB1 — Digital I/O / interrupt-on-change |
| Pino 31 | RB2 — Digital I/O / interrupt-on-change |
| Pino 32 | RB3 — Digital I/O / interrupt-on-change |
| Pino 33 | RB4 — Digital I/O / interrupt-on-change |
| Pino 34 | RB5 — Digital I/O / interrupt-on-change |
| Pino 35 | RB6 — Digital I/O / PGC (debug) |
| Pino 36 | RB7 — Digital I/O / PGD (debug) |
| Pino 37 | RD0 — Digital I/O |
| Pino 38 | RD1 — Digital I/O |
| Pino 39 | RD2 — Digital I/O |
| Pino 40 | RD3 — Digital I/O |
| Pino 41 | RD4 — Digital I/O |
| Pino 42 | RD5 — Digital I/O |
| Pino 43 | RD6 — Digital I/O |
| Pino 44 | RD7 — Digital I/O |
| Pino 45 | VSS — Ground |
| Pino 46 | VDD — Positive supply |
| Pino 47 | RF0 — Digital I/O |
| Pino 48 | RF1 — Digital I/O |
| Pino 49 | RF2 — Digital I/O |
| Pino 50 | RF3 — Digital I/O |
| Pino 51 | RF4 — Digital I/O |
| Pino 52 | RF5 — Digital I/O |
| Pino 53 | RF6 — Digital I/O |
| Pino 54 | RF7 — Digital I/O |
| Pino 55 | RG0 — Digital I/O |
| Pino 56 | RG1 — Digital I/O |
| Pino 57 | RG2 — Digital I/O |
| Pino 58 | RG3 — Digital I/O |
| Pino 59 | RG4 — Digital I/O |
| Pino 60 | MCLR — Master Clear / reset (active low) |
| Pino 61 | OSC1 — Crystal oscillator input |
| Pino 62 | OSC2 — Crystal oscillator output |
| Pino 63 | VSS — Ground |
| Pino 64 | VDD — Positive supply |
Aplicações típicas
PIC18F66J16-I/PT é adequado para 7 aplicaçãos: Industrial Control Panel HMI, USB-to-UART Protocol Bridge, Multi-Sensor Data Logger, Low-Power Wireless Sensor Node, Automotive Body Comfort Module, Embedded Display Controller, Medical Device Sub-System.
Industrial Control Panel HMI
The PIC18F66J16-I/PT fits industrial HMI panels that need reliable multi-port serial connectivity for display, keypad, and downstream sensors. With 51 GPIO, 2 UART, and 2 I2C/SPI ports, the MCU can drive an LCD or character display via SPI while polling I2C sensors and bridging to a PLC via UART, all from a single 3V rail. The 96 KB Flash accommodates rich menu logic and self-test routines. The 10-bit ADC supports analog keypad or resistive touch overlay sampling.
Recomendado
USB-to-UART Protocol Bridge
The PIC18F66J16-I/PT serves as the bridge controller between an MCP2200 USB-UART transceiver and downstream UART peripherals. With 2 hardware EUSART ports running at up to 5 Mbps, the MCU can simultaneously handle a host-facing link and a field-bus connection while passing data through internal DMA-free FIFOs. The 48 MHz core and 3936-byte RAM sustain 1 ms latency response. Cost-sensitive 3V industrial designs use the J16 to consolidate logic that would otherwise need an external bridge ASIC.
Recomendado
Multi-Sensor Data Logger
The PIC18F66J16-I/PT is well-suited to battery-powered multi-sensor loggers that stream via I2C and SPI. Its nanoWatt sleep modes drop quiescent current to microamp levels between sensor reads, while 96 KB Flash stores weeks of timestamped data. The dual MSSP ports allow simultaneous I2C sensor and SPI flash memory access without contention. Industrial temperature grade -40 C to +85 C supports outdoor deployment.
Recomendado
Low-Power Wireless Sensor Node
The PIC18F66J16-I/PT controls a sub-GHz transceiver (such as MRF89XA) over SPI, gathering sensor data and managing the radio duty cycle. The internal 8 MHz oscillator eliminates an external crystal for many applications, reducing BOM cost. The 3.6V max supply matches Li-ion chemistries directly. nanoWatt sleep current extends battery life to months in intermittent-reporting applications.
Recomendado
Automotive Body Comfort Module
The PIC18F66J16-I/PT handles non-safety automotive comfort functions such as ambient lighting control, mirror positioning, and seat memory. Its 4 serial ports (2x UART, 2x I2C/SPI) connect to multiple LIN sub-nodes and I2C actuators. Designers typically upgrade to AEC-Q100 qualified parts for under-hood applications, but cabin modules can use the industrial-grade J16 with appropriate derating.
Recomendado
Embedded Display Controller
The PIC18F66J16-I/PT drives character and small graphic OLED/LCD displays via SPI or parallel interface, with enough GPIO to scan a 4x4 keypad matrix. The 10-bit ADC digitizes battery voltage for on-screen status indication. 96 KB Flash supports multi-language fonts and bitmaps. The 48 MHz core renders animated icons without flicker at 30 fps.
Recomendado
Medical Device Sub-System
The PIC18F66J16-I/PT serves as a peripheral controller in non-life-critical medical devices such as patient monitors or infusion pumps. Its deterministic 8-bit core and hardware interrupts ensure precise timing for sensor sampling. Designers use the J16 for keypad handling, display drive, and alarm logic while a higher-end processor handles main diagnostics. Industrial temperature grade and nanoWatt sleep are beneficial for portable applications.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC18F66J16-I/PT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC18F66J15-I/PT | PIC18F66J15T-I/PT | PIC18F66J11T-I/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-64 (PT) 10x10 mm | TQFP-64 (PT) 10x10 mm - same | TQFP-64 (PT) 10x10 mm - same | TQFP-64 (PT) 10x10 mm - same |
| Program Memory (Flash) | 96 KB | 64 KB (-33%) | 64 KB (-33%) | 64 KB (-33%) |
| Data RAM | 3936 bytes | 3936 bytes | 3936 bytes | 3936 bytes |
| Maximum CPU Speed | 48 MHz (10 MIPS) | 48 MHz (10 MIPS) | 48 MHz (10 MIPS) | 48 MHz (10 MIPS) |
| Operating Voltage | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V |
| Internal 8 MHz Oscillator (enhanced) | Yes | Yes | Yes | No (base variant) |
| Improved EEPROM Emulation | Yes (word Flash write) | No (older emulation) | No (older emulation) | No |
| Temperature Grade | Industrial (-40 C to +85 C) | Industrial | Industrial | Industrial |
Principais diferenciais
- Highest Flash density in the PIC18F66Jxx 64-pin family (vs PIC18F66J15-I/PT)
- Word-write Flash for native EEPROM emulation (vs PIC18F66J11T-I/PT)
- Enhanced nanoWatt power management with internal 8 MHz oscillator (vs PIC18F66J11T-I/PT)
Notas de projeto
Estimated: at 48 MHz the PIC18F66J16-I/PT draws approximately 12-15 mA active from a 3.3V supply, while nanoWatt sleep drops this below 1 uA. Use a 100 nF decoupling cap on every VDD/VSS pair (4 pairs on the TQFP-64 package), plus a bulk 10 uF tantalum near the IC. For battery applications, gate peripheral power with a MOSFET driven by an MCU GPIO to reduce system quiescent current below the MCU's own sleep floor.
The TQFP-64 (PT) 10x10 mm package has 0.5 mm pitch leads - use 0.25 mm trace width with 0.2 mm spacing and a 4-layer PCB with continuous ground plane under the IC for noise isolation. Place the crystal within 5 mm of OSC1/OSC2 (pins 61/62) and surround the crystal traces with a ground guard ring. MCLR (pin 60) requires a 10 kohm pull-up to VDD for normal operation.
Do not exceed the 3.6V absolute maximum on any pin - the J-series core is NOT 5V tolerant in all configurations. Use MCP1700 or similar LDO to regulate from 5V systems. The internal 8 MHz oscillator has a +/- 2% tolerance, insufficient for UART communication without calibration - use an external crystal for serial applications, or enable the FPLL for high-precision timing.
Route ICSP signals PGC (RB6, pin 35) and PGD (RB7, pin 36) to an in-circuit debug header with series 100 ohm resistors to prevent EMI coupling into nearby analog traces. If using both ICSP and the RB6/RB7 GPIOs in the application, place resistors so the ICSP header can be isolated during normal operation.
Informações de conformidade
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - choose PIC18F46J50 or other automotive-grade parts for vehicle applications.
