PIC18LF6722-I/PT - 8-bit 40MHz 128KB Flash MCU 64-TQFP | Microchip
MPN: PIC18LF6722-I/PT ✓ Hoạt độngPIC18LF6722-I/PT Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip processor with an 8-bit data path, on-chip Flash/ROM, RAM, peripherals and interrupt logic - positioned in the hierarchy 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. Compared with 32-bit Cortex-M MCUs, 8-bit parts draw less power and cost less per unit but deliver lower MIPS and addressable memory; the PIC18F line bridges the gap with C-compilable Harvard architecture, hardware 8x8 multiplier and prioritized interrupts.
Key features include 1024 bytes of data EEPROM for non-volatile parameter storage, 70 free I/O pins with peripheral pin-select on most pins, an enhanced 16-bit capture/compare/PWM module, two analog comparators, and a 10-bit A/D converter with up to 12 channels. The 64-TQFP package exposes nearly the full silicon pin complement, enabling interface-rich designs without external glue logic. The /PT suffix denotes the 64-pin TQFP industrial-temperature (-40C to +85C) package, the 'I' grade.
Typical applications are large, low-power embedded systems with multiple serial interfaces: industrial sensor hubs, home-automation controllers, automotive body modules (LIN slaves), instrument clusters and USB-to-UART bridges when paired with an external transceiver. The 1024-byte data EEPROM allows non-volatile storage of calibration tables, serial numbers and user preferences without external NVRAM, and the wide 2.0V-5.5V VDD range supports 3.3V and 5V rails from a single part.
When designing with this device, place a 100 nF decoupling capacitor within 5 mm of each VDD/VDDCORE pin pair, locate the crystal within 10 mm of OSC1/OSC2 with short symmetrical traces, and respect the ICSP pins (PGC/PGD/MCLR/VPP) to retain in-circuit programming in production. Migrating to the standard PIC18F6722 (4.2V-5.5V) requires VDD never drop below 4.2V to preserve Flash endurance.
This page synthesizes distributor pricing, drop-in same-package alternatives and practical PCB-layout notes not found in a single datasheet excerpt - useful to design engineers qualifying a long-life-cycle 8-bit MCU with confirmed second-source availability from the manufacturer.
Bộ thay thế dễ dàng lắp đặt cho PIC18LF6722-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 PIC18LF6722-I/PT (cùng hình factor và footprint) — khác nhau ở Package, ADC, Core Architecture, Timers, I/O Pins.
PIC18F6722-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF6722-I/PT301
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18LF6722T-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F6622-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF6722-I/PT Tỷ lệ tối đa & tính chất điện
| Series | PIC 18F |
| Core | PIC18F (8-bit Harvard) |
| Program Memory Size | 128 KB (64K x 16) |
| RAM Size | 4 KB |
| EEPROM Size | 1024 bytes |
| Maximum CPU Frequency | 40 MHz |
| Operating Voltage (VDD) | 2.0 V to 5.5 V (LF range) |
| I/O Pins | 70 |
| A/D Converter | 10-bit, up to 12 channels |
| Analog Comparators | 2 |
| PWM Modules | Enhanced 16-bit CCP |
| UART | 2x (LIN-capable) |
| SPI | 1x (synchronous serial) |
| I2C | 1x (synchronous serial) |
| Hộp | 64-TQFP (10x10 mm) |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial, 'I' grade) |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 |
| Trạng thái RoHS | Compliant |
| Flash Self-Programming (ICSP) | Yes |
Cấu hình chân PIC18LF6722-I/PT
| Chân 1 | RH0 — Port H I/O bit 0 |
| Chân 2 | RH1 — Port H I/O bit 1 |
| Chân 3 | RH2 — Port H I/O bit 2 |
| Chân 4 | RH3 — Port H I/O bit 3 |
| Chân 5 | RH4 — Port H I/O bit 4 |
| Chân 6 | RH5 — Port H I/O bit 5 / CCP6/PWM6 alternate |
| Chân 7 | RH6 — Port H I/O bit 6 / CCP7/PWM7 alternate |
| Chân 8 | RH7 — Port H I/O bit 7 |
| Chân 9 | VSS — Ground reference |
| Chân 10 | VDD — Positive supply voltage (2.0V-5.5V) |
| Chân 11 | AVSS — Analog ground |
| Chân 12 | AVDD — Analog positive supply |
| Chân 13 | RA0/AN0 — Port A bit 0 / analog input 0 |
| Chân 14 | RA1/AN1 — Port A bit 1 / analog input 1 |
| Chân 15 | RA2/AN2 — Port A bit 2 / analog input 2 |
| Chân 16 | RA3/AN3/VREF+ — Port A bit 3 / analog input 3 / VREF+ |
| Chân 17 | RA4/AN4 — Port A bit 4 / analog input 4 |
| Chân 18 | RA5/AN5 — Port A bit 5 / analog input 5 |
| Chân 19 | RA6 — Port A bit 6 / oscillator output |
| Chân 20 | RA7 — Port A bit 7 / oscillator input |
| Chân 21 | VSS — Ground reference |
| Chân 22 | VDD — Positive supply voltage |
| Chân 23 | RB0/INT0 — Port B bit 0 / external interrupt 0 |
| Chân 24 | RB1/INT1 — Port B bit 1 / external interrupt 1 |
| Chân 25 | RB2/INT2 — Port B bit 2 / external interrupt 2 |
| Chân 26 | RB3/INT3 — Port B bit 3 / external interrupt 3 |
| Chân 27 | RB4 — Port B bit 4 |
| Chân 28 | RB5 — Port B bit 5 |
| Chân 29 | RB6/PGC — Port B bit 6 / ICSP clock |
| Chân 30 | RB7/PGD — Port B bit 7 / ICSP data |
| Chân 31 | VSS — Ground reference |
| Chân 32 | VDD — Positive supply voltage |
| Chân 33 | RC0 — Port C bit 0 |
| Chân 34 | RC1 — Port C bit 1 |
| Chân 35 | RC2/CCP1 — Port C bit 2 / CCP1/PWM1 |
| Chân 36 | RC3/CCP2 — Port C bit 3 / CCP2/PWM2 |
| Chân 37 | RC4 — Port C bit 4 |
| Chân 38 | RC5 — Port C bit 5 |
| Chân 39 | RC6/TX1 — Port C bit 6 / EUSART1 TX |
| Chân 40 | RC7/RX1 — Port C bit 7 / EUSART1 RX |
| Chân 41 | VSS — Ground reference |
| Chân 42 | VDD — Positive supply voltage |
| Chân 43 | RD0 — Port D bit 0 |
| Chân 44 | RD1 — Port D bit 1 |
| Chân 45 | RD2 — Port D bit 2 |
| Chân 46 | RD3 — Port D bit 3 |
| Chân 47 | RD4 — Port D bit 4 |
| Chân 48 | RD5 — Port D bit 5 |
| Chân 49 | RD6/TX2 — Port D bit 6 / EUSART2 TX |
| Chân 50 | RD7/RX2 — Port D bit 7 / EUSART2 RX |
| Chân 51 | VSS — Ground reference |
| Chân 52 | VDD — Positive supply voltage |
| Chân 53 | RE0/RD — Port E bit 0 / parallel-port read strobe |
| Chân 54 | RE1/WR — Port E bit 1 / parallel-port write strobe |
| Chân 55 | RE2/CS — Port E bit 2 / parallel-port chip-select |
| Chân 56 | RE3 — Port E bit 3 |
| Chân 57 | RE4 — Port E bit 4 |
| Chân 58 | RE5 — Port E bit 5 |
| Chân 59 | RE6 — Port E bit 6 |
| Chân 60 | RE7 — Port E bit 7 |
| Chân 61 | VSS — Ground reference |
| Chân 62 | VDD — Positive supply voltage |
| Chân 63 | RF0/AN6 — Port F bit 0 / analog input 6 |
| Chân 64 | RF1/AN7 — Port F bit 1 / analog input 7 |
Ứng dụng tiêu biểu
PIC18LF6722-I/PT phù hợp cho 6 Áp dụngs: Industrial Sensor Hub, Home-Automation Controller, Automotive Body Module (LIN Slave), Instrument Cluster Display Driver, USB-to-UART Bridge Module, Battery-Backed Data Logger.
Industrial Sensor Hub
The PIC18LF6722-I/PT fits industrial sensor hubs that aggregate data from multiple analog and digital sources. Its 10-bit A/D converter with up to 12 input channels digitizes thermocouple, pressure and 4-20 mA sensor outputs, while the four serial interfaces (2x UART LIN-capable + 1x SPI + 1x I2C) connect to downstream sensor nodes and external EEPROM. The 2.0V-5.5V VDD range lets the part run from a regulated 24V-to-5V industrial rail or a 3.3V backup supply. nanoWatt idle modes drop quiescent current below 1 uA typical between sensor reads, preserving energy in remote installations. The 64-TQFP package exposes 70 GPIO for status LEDs, relay drivers and keypad scanning without external mux ICs.
Được đề xuất
Home-Automation Controller
The PIC18LF6722-I/PT anchors home-automation controllers that orchestrate HVAC, lighting, blinds and security subsystems. Its dual UARTs handle RS-485 lighting buses and LIN thermostats, while the SPI port drives a TFT or OLED display and the I2C port reads RTC and external EEPROM. The 128 KB Flash supports a full Modbus or BACnet stack plus user-interface logic without external program memory. The 1024-byte data EEPROM stores commissioning parameters and user preferences, surviving power cycles without external NVRAM. The wide 2.0V-5.5V range lets the controller run from 3.3V PoE or 5V USB supplies interchangeably, simplifying enclosure design.
Được đề xuất
Automotive Body Module (LIN Slave)
The PIC18LF6722-I/PT is well suited to automotive body-electronics LIN slaves for door modules, seat controllers and mirror adjusters. Its two LIN-capable UARTs drive the LIN bus plus a K-line diagnostic interface, while the 10-bit A/D reads potentiometer wiper positions for seat travel feedback. The enhanced 16-bit CCP/PWM module smoothly drives window-lift and mirror-fold motors with hardware dead-band control. The industrial -40C to +85C temperature grade covers cabin environments, and the 2.0V-5.5V VDD range tolerates automotive cold-start cranking voltage drops. The 1024-byte EEPROM stores end-of-line calibration and vehicle option codes for service traceability.
Được đề xuất
Instrument Cluster Display Driver
The PIC18LF6722-I/PT drives small instrument clusters in two-wheelers, e-bikes, industrial gauges and laboratory equipment. Its 10-bit A/D reads up to 12 analog channels (speed, fuel, temperature, battery voltage) while the enhanced CCP/PWM generates dimmable backlight control signals. The MSSP in SPI mode streams gauge data to an external LED driver or small TFT controller, and the UARTs provide LIN or RS-232 diagnostic links to service tools. With 70 GPIO the part directly keys the segment LCD or LED array without external latches, and 1024 bytes EEPROM stores odometer and service-interval counters in non-volatile memory.
Được đề xuất
USB-to-UART Bridge Module
The PIC18LF6722-I/PT forms the MCU core of USB-to-UART bridge modules when paired with an external USB transceiver such as the MCP2200 or MCP2221. The two hardware UARTs provide primary and auxiliary serial channels at up to 5 Mbps each, ideal for debug consoles and field firmware updates. The 128 KB Flash stores the USB CDC stack plus vendor-specific protocol handlers, and the 1024-byte EEPROM retains VID/PID/serial-string descriptors without re-enumeration after power cycle. The wide 2.0V-5.5V VDD range supports both USB-bus-powered 5V and self-powered 3.3V designs. nanoWatt idle current below 1 uA keeps bus-powered standby within USB suspend-current limits.
Được đề xuất
Battery-Backed Data Logger
The PIC18LF6722-I/PT powers battery-backed data loggers in remote environmental, asset-tracking and cold-chain monitoring applications. Its 10-bit A/D with 12 channels digitizes temperature, humidity and shock sensors, while the 1024-byte EEPROM plus 128 KB Flash provides redundant non-volatile storage for log records spanning months of unattended operation. The four serial interfaces attach to BLE or LoRa radio modules via UART/SPI for wireless upload, and to I2C RTC chips for timestamping. nanoWatt sleep currents below 1 uA typical and the 2.0V-5.5V VDD range let the logger run for years on a single Li-coin cell, with industrial -40C to +85C operation covering outdoor deployment.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18LF6722-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 | PIC18F6722-I/PT | PIC18LF6722-I/PT301 | PIC18LF6722T-I/PT | PIC18F6622-I/PT | PIC18F8722-I/PT |
|---|---|---|---|---|---|---|
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) | 80-TQFP (larger) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Operating Voltage (VDD) | 2.0 V to 5.5 V (LF range) | 4.2 V to 5.5 V (F range) | 2.0 V to 5.5 V (LF range) | 2.0 V to 5.5 V (LF range) | 4.2 V to 5.5 V (F range) | 4.2 V to 5.5 V (F range) |
| Program Flash | 128 KB | 128 KB | 128 KB | 128 KB | 64 KB | 128 KB |
| RAM | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB |
| EEPROM | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes |
| Maximum CPU Frequency | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| I/O Pins | 70 | 70 | 70 | 70 | 70 | 80 |
| Serial Ports (UART/SPI/I2C) | 4 (2x UART LIN + 2x sync SSP) | 4 | 4 | 4 | 4 | 4 |
Bảo phân biệt quan trọng
- Wide 2.0V-5.5V VDD range supports battery-backed and 3.3V designs (vsPIC18F6722-I/PT)
- Full 128 KB Flash preserved across LF temperature grade (vsPIC18F6622-I/PT)
- Same 64-TQFP pinout as siblings enables drop-in LF upgrade (vsPIC18F8722-I/PT)
- Two LIN-capable UARTs in same 64-TQFP (vsPIC18LF47K42-E/PT (40-pin))
Ghi chú thiết kế
Estimated: at 40 MHz CPU and 5.0V VDD, the PIC18LF6722-I/PT core current draw reaches ~15 mA typical with peripherals active. Place a 100 nF decoupling capacitor within 5 mm of each VDD/VSS pin pair (5 pairs on this 64-TQFP) and add a bulk 10 uF tantalum or ceramic at the regulator output. For battery-backed nodes, use nanoWatt sleep modes with RTC sourced from Timer1 to drop quiescent current below 1 uA typical.
The 64-TQFP package requires a 4-layer PCB with a continuous ground plane directly under the IC for thermal dissipation and EMI control. Route the crystal traces from OSC1/OSC2 (pins 20/19) within 10 mm and guard them with a ground keep-out zone to avoid crosstalk; the ICSP pins PGC/PGD (RB6/RB7, pins 29/30) must remain accessible in production for in-circuit programming and debug.
Estimated: configuring a pin as analog input without clearing the corresponding TRIS bit can result in contention and excess current. The 10-bit A/D requires acquisition time of at least 1.4 us at 40 MHz; failing to honor TACQ produces noisy readings. When migrating between the LF (2.0V-5.5V) and F (4.2V-5.5V) variants, verify that VDD never drops below 4.2V or Flash endurance is reduced; check the BOR configuration for proper brown-out behavior in your application.
The PIC18LF6722-I/PT's four serial interfaces (2x UART LIN-capable + SPI + I2C) are 5V tolerant when the part runs at 5V VDD; mixing 3.3V peripherals at 5V VDD requires series resistors or level shifters on each I/O line. The LIN-capable UARTs include hardware baud-rate detection but require careful configuration of BRG and the auto-baud detector bit sequence - reference Microchip application note TBANEL for lin-bus timing compliance.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Industrial -40C to +85C temperature grade ('I' suffix). Not AEC-Q100 qualified - for automotive, evaluate PIC18F6722-I/PT AEC variants or PIC18F65K80 family.
