PIC18LF8722-I/PT - 8-bit 40MHz 128KB Flash MCU 80-TQFP | Microchip
部品番号: PIC18LF8722-I/PT ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $12.5 | $12.50 |
| 10 | $11.25 | $112.50 |
| 100 | $9.95 | $995.00 |
| 500 | $8.75 | $4,375.00 |
| 1,000 | $7.85 | $7,850.00 |
PIC18LF8722-I/PT 概要
A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash), volatile data memory (SRAM), and a rich set of peripherals such as timers, communication interfaces, and analog-to-digital converters on one silicon die. Within the broader hierarchy, microcontrollers sit below microprocessors (which require external memory) and belong to the embedded computing category. The PIC18LF8722 belongs to the 8-bit class of microcontrollers and uses a modified Harvard RISC architecture with a 16-bit instruction word that is byte-addressable for data, optimizing both code density and execution throughput.
Key features of the PIC18LF8722-I/PT include 70 general-purpose I/O pins, four serial communication ports (two MSSP for I2C/SPI and two EUSART LIN-capable UARTs), a 10-bit ADC with up to 16 channels, multiple 8/16-bit timers, a 16-bit capture/compare/PWM module, and nanoWatt power management with multiple sleep modes. The 80-pin TQFP package provides ample I/O expansion and supports high pin-count designs while still being hand-solderable with proper tooling.
The PIC18LF8722 is engineered around a 16-bit enhanced instruction set with an 8-bit data path, featuring hardware multiplier and DC-to-83K data EEPROM emulation. Its C-optimized architecture simplifies ANSI C compilation, and the integrated ICD (In-Circuit Debugger) interface enables cost-effective development through Microchip's MPLAB and ICD tools.
Typical applications include industrial control panels with graphical LCD interfaces, automotive body controllers, building automation HVAC systems, sensor data acquisition nodes, USB peripherals (with external transceiver), motor control with PWM feedback, and medical instrumentation. The dual serial port set allows simultaneous connectivity to sensor buses (I2C) and wireless modules (UART) within the same firmware.
Designers should review the PIC18LF8722-I/PT datasheet for the proper external crystal, decoupling, and MCLR configuration to ensure reliable startup. Configuring the configuration bits (CONFIG1H through CONFIG3H) correctly is critical for oscillator selection, watchdog timer behavior, brown-out reset threshold, and code protection.
This page consolidates distributor pricing, drop-in compatible alternatives from the same PIC18F family, and practical design notes to help engineers select, source, and integrate the PIC18LF8722-I/PT more efficiently than consulting the manufacturer datasheet alone.
ドロップイン代替品: PIC18LF8722-I/PT — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: PIC18LF8722-I/PT （同一形状・フットプリント） — 相違点: Package, Operating Temperature, RoHS Status, Core Architecture, Mounting Type.
クイック比較ツール — 並列比較する代替部品を選択:
PIC18F8722-I/PT
✅ ドロップイン✓ 在庫あり
$6.5 / 個
データシートを見る →PIC18LF8720-I/PT
✅ ドロップイン✓ 在庫あり
$6.5 / 個
データシートを見る →PIC18LF8680-I/PT
✅ ドロップイン✓ 在庫あり
$7.99 / 個
データシートを見る →PIC18LF8621-I/PT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC18LF8527-I/PT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC18LF8722T-I/PT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC18LF8722-I/PT 最大定格＆電気的特性
| Manufacturer | Microchip Technology |
| Series | PIC® 18F |
| Core Processor | PIC |
| Core Size | 8-bit |
| Maximum CPU Frequency | 40 MHz |
| Program Memory Size | 128 KB (64K x 16) Flash |
| RAM Size | 4 KB |
| Number of I/O Pins | 70 |
| Supply Voltage Range | 2.0 V to 5.5 V |
| 動作温度範囲 | -40 °C to +85 °C (industrial) |
| パッケージ | 80-TQFP (12x12 mm) |
| 実装タイプ | Surface Mount |
| ADC | 10-bit, up to 16 channels |
| Connectivity | I2C, SPI, UART (2x MSSP + 2x EUSART) |
| Power Management | nanoWatt Technology (multiple sleep modes) |
| RoHS ステータス | Compliant |
| MSLレベル | 3 (168 hours) |
PIC18LF8722-I/PT ピン構成
| ピン 1 | RG0 — General purpose I/O port G bit 0 |
| ピン 2 | RG1 — General purpose I/O port G bit 1 |
| ピン 3 | RG2 — General purpose I/O port G bit 2 |
| ピン 4 | RG3 — General purpose I/O port G bit 3 |
| ピン 5 | MCLR — Master Clear (reset) input, active low |
| ピン 6 | RG4 — General purpose I/O port G bit 4 |
| ピン 7 | VSS — Ground reference |
| ピン 8 | VDD — Positive supply voltage |
| ピン 9 | RA0/AN0 — Port A bit 0 / analog input 0 |
| ピン 10 | RA1/AN1 — Port A bit 1 / analog input 1 |
| ピン 11 | RA2/AN2 — Port A bit 2 / analog input 2 |
| ピン 12 | RA3/AN3 — Port A bit 3 / analog input 3 |
| ピン 13 | RA4/AN4 — Port A bit 4 / analog input 4 |
| ピン 14 | RA5/AN5 — Port A bit 5 / analog input 5 |
| ピン 15 | RA6/OSC2 — Port A bit 6 / oscillator output |
| ピン 16 | RA7/OSC1 — Port A bit 7 / oscillator input |
| ピン 17 | VSS — Ground reference |
| ピン 18 | VDD — Positive supply voltage |
| ピン 19 | RB0/INT0 — Port B bit 0 / external interrupt 0 |
| ピン 20 | RB1/INT1 — Port B bit 1 / external interrupt 1 |
| ピン 21 | RB2/INT2 — Port B bit 2 / external interrupt 2 |
| ピン 22 | RB3/INT3 — Port B bit 3 / external interrupt 3 |
| ピン 23 | RB4 — Port B bit 4 |
| ピン 24 | RB5 — Port B bit 5 |
| ピン 25 | RB6/PGC — Port B bit 6 / ICSP clock |
| ピン 26 | RB7/PGD — Port B bit 7 / ICSP data |
| ピン 27 | VSS — Ground reference |
| ピン 28 | VDD — Positive supply voltage |
| ピン 29 | RC0/T1CKI — Port C bit 0 / Timer1 clock input |
| ピン 30 | RC1/CCP2 — Port C bit 1 / CCP2 output |
| ピン 31 | RC2/CCP1 — Port C bit 2 / CCP1 output |
| ピン 32 | RC3/SCK/SCL — Port C bit 3 / SPI clock / I2C clock |
| ピン 33 | RC4/SDI/SDA — Port C bit 4 / SPI data in / I2C data |
| ピン 34 | RC5/SDO — Port C bit 5 / SPI data out |
| ピン 35 | RC6/TX1/CK1 — Port C bit 6 / USART1 TX / clock |
| ピン 36 | RC7/RX1/DT1 — Port C bit 7 / USART1 RX / data |
| ピン 37 | VSS — Ground reference |
| ピン 38 | VDD — Positive supply voltage |
| ピン 39 | RD0/PSP0 — Port D bit 0 / parallel slave port bit 0 |
| ピン 40 | RD1/PSP1 — Port D bit 1 / parallel slave port bit 1 |
| ピン 41 | RD2/PSP2 — Port D bit 2 / parallel slave port bit 2 |
| ピン 42 | RD3/PSP3 — Port D bit 3 / parallel slave port bit 3 |
| ピン 43 | RD4/PSP4 — Port D bit 4 / parallel slave port bit 4 |
| ピン 44 | RD5/PSP5 — Port D bit 5 / parallel slave port bit 5 |
| ピン 45 | RD6/PSP6 — Port D bit 6 / parallel slave port bit 6 |
| ピン 46 | RD7/PSP7 — Port D bit 7 / parallel slave port bit 7 |
| ピン 47 | VSS — Ground reference |
| ピン 48 | VDD — Positive supply voltage |
| ピン 49 | RE0/RD — Port E bit 0 / parallel slave port read |
| ピン 50 | RE1/WR — Port E bit 1 / parallel slave port write |
| ピン 51 | RE2/CS — Port E bit 2 / parallel slave port chip select |
| ピン 52 | RE3 — Port E bit 3 |
| ピン 53 | RE4 — Port E bit 4 |
| ピン 54 | RE5 — Port E bit 5 |
| ピン 55 | RE6 — Port E bit 6 |
| ピン 56 | RE7 — Port E bit 7 |
| ピン 57 | VSS — Ground reference |
| ピン 58 | VDD — Positive supply voltage |
| ピン 59 | RF0/AN6 — Port F bit 0 / analog input 6 |
| ピン 60 | RF1/AN7 — Port F bit 1 / analog input 7 |
| ピン 61 | RF2/AN8 — Port F bit 2 / analog input 8 |
| ピン 62 | RF3/AN9 — Port F bit 3 / analog input 9 |
| ピン 63 | RF4/AN10 — Port F bit 4 / analog input 10 |
| ピン 64 | RF5/AN11 — Port F bit 5 / analog input 11 |
| ピン 65 | RF6/AN12 — Port F bit 6 / analog input 12 |
| ピン 66 | RF7/AN13 — Port F bit 7 / analog input 13 |
| ピン 67 | VSS — Ground reference |
| ピン 68 | VDD — Positive supply voltage |
| ピン 69 | RH0 — Port H bit 0 |
| ピン 70 | RH1 — Port H bit 1 |
| ピン 71 | RH2 — Port H bit 2 |
| ピン 72 | RH3 — Port H bit 3 |
| ピン 73 | RH4 — Port H bit 4 |
| ピン 74 | RH5 — Port H bit 5 |
| ピン 75 | RH6 — Port H bit 6 |
| ピン 76 | RH7 — Port H bit 7 |
| ピン 77 | VSS — Ground reference |
| ピン 78 | VDD — Positive supply voltage |
| ピン 79 | RJ0 — Port J bit 0 |
| ピン 80 | RJ1 — Port J bit 1 |
主な用途
PIC18LF8722-I/PT の用途: 7 件s: Industrial Control Panel with Graphical LCD, Automotive Body and Climate Control Module, Building Automation HVAC Controller, Sensor Data Acquisition Node, USB Peripheral Bridge (External Transceiver), Medical Instrumentation Front End, Motor Control with PWM Feedback.
Industrial Control Panel with Graphical LCD
The PIC18LF8722-I/PT fits industrial HMI panels because its 70 I/O pins can directly drive a 4.4-inch graphical LCD in 8080 parallel mode while still leaving pins for matrix keypads, status LEDs, and rotary encoders. With 128 KB Flash and 4 KB RAM, it can host full ANSI C HMI stacks with menus and real-time graphics. The 2.0V to 5.5V supply range allows direct operation from 24V industrial rails stepped down to 5V or 3.3V. Its 10-bit ADC (up to 16 channels) reads analog sensors like thermistors and pressure transducers without external ADC chips, reducing BOM cost in panel meter designs.
おすすめ
Automotive Body and Climate Control Module
The PIC18LF8722-I/PT is well suited for automotive body controllers because its dual EUSART (LIN-capable) ports can simultaneously talk to a LIN master bus and a dashboard LIN slave, while the dual MSSP drives an I2C sensor cluster (temperature sensors, light sensors) and an SPI EEPROM for fault logging. The 10-bit ADC handles up to 16 analog channels for reading thermistors, position sensors, and battery voltage divided by a resistor network. The 70 I/O pins support direct drive of relays and stepper motors for HVAC mode doors. Note that AEC-Q100 qualification is NOT claimed on this part - for AEC-Q100 automotive compliance, migrate to PIC18F8722-I/PT variants qualified to automotive grade.
おすすめ
Building Automation HVAC Controller
In building automation HVAC controllers, the PIC18LF8722-I/PT orchestrates fan speed via PWM, reads multiple zone temperature sensors through its 10-bit ADC, and communicates with central management over RS-485 through the EUSART. The 128 KB Flash comfortably hosts Modbus RTU slave stacks and PID control loops with multi-zone scheduling. Its nanoWatt technology reduces standby power below 1 µA when the HVAC system is idle, an important feature for energy-star rated equipment. The wide 2.0V to 5.5V supply range enables direct operation from rectified 24VAC transformer rails after regulation.
おすすめ
Sensor Data Acquisition Node
The PIC18LF8722-I/PT works well as a multi-channel sensor data acquisition front end. With 16 ADC channels and dual MSSP ports, it can read strain gauges, RTDs, or 4-20 mA loop sensors through the ADC while simultaneously servicing an I2C digital sensor array (accelerometers, gyroscopes) and an SPI ADC for high-speed sampling. The 4 KB SRAM buffers time-stamped sensor frames before relaying them over UART to a host. The 40 MHz CPU clock executes 10 MIPS, sufficient for digital filtering and basic FFT preprocessing. Combined with nanoWatt sleep and battery operation down to 2V, this enables wireless sensor nodes powered by 2x AA cells.
おすすめ
USB Peripheral Bridge (External Transceiver)
The PIC18LF8722-I/PT can serve as a USB-to-UART or USB-to-I2C/SPI bridge when paired with an external USB transceiver such as the MCP2200 or FTDI FT232. The MCU implements the USB device class stack in firmware using its enhanced 8-bit core and 128 KB Flash. While the PIC18LF8722 lacks native USB hardware, this configuration is viable for legacy industrial peripherals and HID-class devices where the additional BOM cost of an external transceiver is acceptable. Engineers migrating to native USB should consider the PIC18F4550 family instead, which integrates USB 2.0 Full-Speed hardware.
おすすめ
Medical Instrumentation Front End
The PIC18LF8722-I/PT is appropriate for low-to-mid complexity medical instrumentation such as portable pulse oximeters, blood pressure monitors, and digital thermometers where its 10-bit ADC reads analog front-end signals (photodiode current, pressure transducer voltage, thermistor bridge). Its 128 KB Flash supports medical device firmware stacks with calibration tables and sensor compensation algorithms. The 40 MHz throughput handles real-time signal conditioning for pulse-rate computation. The wide 2.0V to 5.5V range supports battery operation from 2x AA cells, common in portable medical devices. Designers must validate IEC 60601 compliance and ESD protection at the system level.
おすすめ
Motor Control with PWM Feedback
The PIC18LF8722-I/PT supports BLDC and stepper motor control through its enhanced 16-bit CCP (Capture/Compare/PWM) modules generating complementary PWM with dead-band control. With 70 I/O pins, the MCU directly interfaces to gate drivers, Hall-effect position sensors, and quadrature encoders without external logic. Its 10-bit ADC samples motor current through shunt resistors for closed-loop torque control. The 128 KB Flash hosts field-oriented control (FOC) algorithms with lookup tables for sinusoidal commutation. Real-time performance reaches 10 MIPS, suitable for moderate-speed motor control up to several kHz PWM frequency.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: PIC18LF8722-I/PT — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | PIC18F8722-I/PT | PIC18LF8720-I/PT | PIC18LF8680-I/PT | PIC18LF8621-I/PT | PIC18LF8527-I/PT |
|---|---|---|---|---|---|---|
| Package | 80-TQFP (12x12 mm) | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 128 KB | 128 KB | 64 KB | 64 KB | 64 KB | 48 KB |
| RAM | 4 KB | 4 KB | 4 KB | 4 KB | 3.8 KB | 3.8 KB |
| Supply Voltage Range | 2.0 V to 5.5 V | 4.2 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| Maximum CPU Frequency | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) |
| I/O Pins | 70 | 70 | 70 | 70 | 70 | 70 |
| CAN Peripheral | No | No | No | Yes (CAN 2.0B) | No | No |
| Operating Temperature | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C |
主な差別化要因
- Highest program memory in TQFP-80 PIC18LF family （vs PIC18LF8720-I/PT)
- Wide 2.0V-5.5V supply range enables battery operation （vs PIC18F8722-I/PT)
- Includes CAN peripheral absent on F/LF8722 （vs PIC18LF8680-I/PT)
設計ノート
Place a 100 nF ceramic decoupling capacitor as close as possible to each VDD pin pair (there are 6 VDD/VSS pairs around the TQFP-80 package perimeter - pins 8/7, 18/17, 28/27, 38/37, 48/47, 58/57, 68/67, 78/77). Add a single 10 µF bulk tantalum or ceramic capacitor near the MCU's main VDD entry. nanoWatt power management requires the configuration bits to enable the on-chip voltage regulator properly - set LVP (CONFIG3L) for low-voltage programming if not using a 5V programmer.
The 80-TQFP package has a 0.5 mm pitch and 12x12 mm body. Maintain at least 4-layer PCB with a continuous ground plane directly under the MCU for thermal dissipation and EMI suppression. Trace length matching is critical for the parallel slave port (PSP) pins RE0-RE2 and RD0-RD7 if used in external memory mode. Keep crystal traces (RA6/OSC2 and RA7/OSC1) shorter than 10 mm with grounded guard traces to prevent coupling to adjacent analog inputs.
Do not leave the MCLR pin floating - it MUST be pulled high through a 10 kΩ resistor to VDD for reliable operation. Floating MCLR causes random resets in noisy environments. Configuration bits (CONFIG1H through CONFIG3H) must be programmed in the correct sequence - incorrect oscillator configuration (HS vs XT vs EC) is the most common cause of PIC18F8722-family prototypes that fail to start. Verify the configuration bits match your crystal frequency using MPLAB X IDE's configuration bit viewer.
When using the MSSP peripheral in SPI mode at high speeds (>5 MHz), add 33 Ω series resistors on the SCK, SDO, and SDI lines near the MCU to dampen reflections on long PCB traces. For I2C mode, both SDA and SCL require external 4.7 kΩ pull-up resistors to VDD (the PIC18LF8722 has weak internal pull-ups only, rated for <1 mA). Total bus capacitance should remain below 400 pF for reliable 400 kHz Fast Mode operation.
コンプライアンス情報
RoHS compliant per Microchip product environmental data. Lead-free TQFP terminations. AEC-Q100 automotive qualification NOT claimed on the -I/PT industrial variant; for AEC-Q100, choose automotive-graded PIC18F8722 variants. Halogen-free status not specifically declared in available data.
