PIC18F4523-I/PT - 8-bit PIC MCU 32KB Flash 40MHz 44-TQFP | Microchip
部品番号: PIC18F4523-I/PT ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $5.08 | $5.08 |
| 10 | $4.57 | $45.70 |
| 100 | $4.06 | $406.00 |
| 500 | $3.66 | $1,830.00 |
| 1,000 | $3.25 | $3,250.00 |
PIC18F4523-I/PT 概要
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals onto one silicon die. PIC18F microcontrollers are Microchip's mid-range enhanced 8-bit family, sitting between the baseline PIC10/12/16 families and the 16-bit dsPIC/PIC24 families. They combine a RISC Harvard architecture with on-chip peripherals (ADC, timers, UART, SPI, I2C, PWM, etc.), enabling standalone embedded control without external logic. Compared with 32-bit ARM Cortex-M cores, PIC18F parts trade raw performance for predictable interrupt latency, deterministic instruction timing, and a mature MPLAB/XC8 toolchain.
Key features of the PIC18F4523 include nanoWatt power management for low-power sleep modes, up to 36 digital I/O pins, two 8-bit and three 16-bit timers, two capture/compare/PWM modules, two enhanced USART modules, an MSSP (SPI/I2C) port, and self-programming flash with block erase. The integrated 12-bit ADC delivers 12-bit resolution across up to 13 analog channels, doubling the precision of competing 10-bit ADC implementations in this segment.
Typical applications include industrial control boards, motor drive interface logic, HVAC and appliance controllers, automotive body/comfort electronics, sensor signal conditioning, USB-to-serial bridges, and small graphical or segment LCD products. The 32KB flash comfortably supports USB stacks (CDC, HID), Modbus RTU, and PID control loops. Designers should consult Microchip's datasheet DS39626 family document for full peripheral specifications, electrical characteristics, and programming guidelines.
ドロップイン代替品: PIC18F4523-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: PIC18F4523-I/PT （同一形状・フットプリント） — 相違点: Package, Timers, Operating Temperature, Core, Communication.
クイック比較ツール — 並列比較する代替部品を選択:
PIC18F4520-I/PT
✅ ドロップイン✓ 在庫あり
$4.05 / 個
データシートを見る →PIC18F4423-I/PT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC18F4620-I/PT
✅ ドロップイン✓ 在庫あり
$5.45 / 個
データシートを見る →PIC18F4523T-I/PT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC18F4523-E/PT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC18F44K22-I/PT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC18F4523-I/PT 最大定格＆電気的特性
| Family | PIC18F |
| Core | PIC 8-bit RISC (Harvard architecture) |
| Program Memory | 32 KB (16K x 16) Flash |
| RAM | 1536 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Frequency | 40 MHz |
| Performance | 10 MIPS |
| Operating Voltage | 2.0 V to 5.5 V |
| I/O Pins | 36 |
| ADC | 12-bit, up to 13 channels |
| Timers | 2 x 8-bit, 3 x 16-bit |
| Communication | 2x EUSART, 1x MSSP (SPI/I2C) |
| PWM Channels | 2 (CCP) |
| パッケージ | 44-TQFP (10x10 mm) |
| 動作温度 | -40 C to +85 C (Industrial) |
| 実装タイプ | Surface Mount |
| RoHS | Compliant |
| Lead-Free | Yes |
PIC18F4523-I/PT ピン構成
| ピン 1 | OSC1/RA7 — Oscillator input / GPIO RA7 |
| ピン 2 | RA6 — GPIO RA6 |
| ピン 3 | RA5/AN4 — GPIO RA5 / analog input AN4 |
| ピン 4 | RA4/AN3 — GPIO RA4 / analog input AN3 |
| ピン 5 | RA3/AN2 — GPIO RA3 / analog input AN2 |
| ピン 6 | RA2/AN1 — GPIO RA2 / analog input AN1 |
| ピン 7 | RA1/AN0 — GPIO RA1 / analog input AN0 |
| ピン 8 | RA0/AN0 — GPIO RA0 / analog input AN0 (alt) |
| ピン 9 | VSS — Ground |
| ピン 10 | VDD — Positive supply |
| ピン 11 | RB7/PGD — GPIO RB7 / ICSP data |
| ピン 12 | MCLR — Master clear reset (active low) |
| ピン 13 | OSC2/RA6 — Oscillator output / GPIO RA6 |
| ピン 14 | VSS — Ground |
| ピン 15 | RC7/RX — GPIO RC7 / EUSART RX |
| ピン 16 | RC6/TX — GPIO RC6 / EUSART TX |
| ピン 17 | RC5/SDO — GPIO RC5 / SPI data out |
| ピン 18 | RC4/SDI — GPIO RC4 / SPI data in |
| ピン 19 | RC3/SCK/SCL — GPIO RC3 / SPI clock / I2C clock |
| ピン 20 | RC2/CCP1 — GPIO RC2 / CCP1 PWM |
| ピン 21 | RC1/T1OSI — GPIO RC1 / Timer1 oscillator in |
| ピン 22 | RC0/T1OSO — GPIO RC0 / Timer1 oscillator out |
| ピン 23 | RD7 — GPIO RD7 |
| ピン 24 | RD6 — GPIO RD6 |
| ピン 25 | RD5 — GPIO RD5 |
| ピン 26 | RD4 — GPIO RD4 |
| ピン 27 | RD3 — GPIO RD3 |
| ピン 28 | RD2 — GPIO RD2 |
| ピン 29 | RD1 — GPIO RD1 |
| ピン 30 | RD0 — GPIO RD0 |
| ピン 31 | VSS — Ground |
| ピン 32 | VDD — Positive supply |
| ピン 33 | RE3/RESET — GPIO RE3 (alt reset input) |
| ピン 34 | RE2/AN12 — GPIO RE2 / analog input AN12 |
| ピン 35 | RE1/AN11 — GPIO RE1 / analog input AN11 |
| ピン 36 | RE0/AN10 — GPIO RE0 / analog input AN10 |
| ピン 37 | RB6/PGC — GPIO RB6 / ICSP clock |
| ピン 38 | RB5 — GPIO RB5 |
| ピン 39 | RB4 — GPIO RB4 |
| ピン 40 | RB3/CCP2 — GPIO RB3 / CCP2 PWM |
| ピン 41 | RB2 — GPIO RB2 |
| ピン 42 | RB1 — GPIO RB1 |
| ピン 43 | RB0/INT — GPIO RB0 / external interrupt |
| ピン 44 | NC — Not connected (per datasheet) |
主な用途
PIC18F4523-I/PT の用途: 6 件s: Industrial Process Control, HVAC and Appliance Controllers, Automotive Body Electronics, Sensor Signal Conditioning and Data Acquisition, USB-to-Serial Bridge and Communication Gateways, Small Appliance and Consumer Electronics.
Industrial Process Control
The PIC18F4523-I/PT suits industrial process controllers thanks to its 12-bit ADC with up to 13 channels and 36 I/O pins for sensor multiplexing. Its 32 KB Enhanced Flash holds PID control loops and Modbus RTU stacks without external memory. With nanoWatt power modes and -40C to +85C operation, the part handles factory-floor conditions while drawing under 100 nA in sleep. The dual EUSARTs enable simultaneous RS-485 fieldbus and RS-232 debug port connectivity on the same PCB.
おすすめ
HVAC and Appliance Controllers
The PIC18F4523-I/PT is a strong match for HVAC control boards, where its 12-bit ADC accurately reads thermistor temperature sensors, and its PWM modules drive fan motors and triac-controlled heaters. The 32 KB flash fits complete state-machine control logic plus user-interface menus. With 2.0 V to 5.5 V operation, the MCU interfaces directly to both 3.3 V sensors and 5 V relay drivers on the same board, simplifying power tree design and reducing BOM cost.
おすすめ
Automotive Body Electronics
The PIC18F4523-I/PT fits non-safety automotive body modules such as lighting controllers, seat positioners, and climate interfaces. Its 12-bit ADC reads multiple analog switches and potentiometers, while the EUSART ports connect to LIN or K-Line transceivers for body-network communication. The industrial -40C to +85C range covers cabin environments, and the 44-TQFP package enables compact PCB layouts. Designers targeting AEC-Q100 should consider automotive-graded siblings like PIC18F45K22-I/PT.
おすすめ
Sensor Signal Conditioning and Data Acquisition
The PIC18F4523-I/PT excels at sensor hub designs where multiple analog inputs (load cells, RTDs, photodiodes) require high-resolution sampling. The 12-bit ADC delivers 4x finer resolution than 10-bit alternatives, capturing small signal variations in bridge sensors without external amplifier stages. Combined with 1536 bytes of RAM for sample buffering and the MSSP port for SPI ADC chaining, the MCU forms a compact multi-channel data acquisition front end at minimal BOM cost.
おすすめ
USB-to-Serial Bridge and Communication Gateways
The PIC18F4523-I/PT can implement USB CDC/HID bridges or Modbus gateways thanks to 32 KB of flash accommodating the USB stack plus protocol handlers. The two EUSART modules allow dual-port bridges (RS-232 plus RS-485), and the MSSP port can drive SPI peripherals like Ethernet or CAN controllers. With nanoWatt sleep modes drawing under 100 nA, the device is ideal for always-on communication gateways that must survive long idle periods on battery or bus power.
おすすめ
Small Appliance and Consumer Electronics
The PIC18F4523-I/PT powers coffee makers, washing machine sub-controllers, and smart-home sensor nodes. The 36 I/O pins drive LED arrays, button matrices, and buzzer outputs without external expanders, and the 12-bit ADC reads multiple sensor channels for accurate control loops. Its 2.0 V to 5.5 V operation supports both battery and mains-derived supplies. The combination of low cost, mature MPLAB toolchain, and Microchip's longevity program makes this a reliable choice for high-volume consumer products.
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: PIC18F4523-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 | PIC18F4520-I/PT | PIC18F4423-I/PT | PIC18F4620-I/PT | PIC18F4523T-I/PT | PIC18F44K22-I/PT |
|---|---|---|---|---|---|---|
| Package | 44-TQFP (10x10) | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 32 KB | 16 KB | 64 KB | 32 KB | 16 KB |
| RAM | 1536 bytes | 1536 bytes | 1536 bytes | 3968 bytes | 1536 bytes | 1536 bytes |
| ADC Resolution | 12-bit | 10-bit | 12-bit | 10-bit | 12-bit | 10-bit |
| Maximum Frequency | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 64 MHz (16 MIPS) |
| Operating Voltage | 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 | 2.0 V to 5.5 V | 1.8 V to 5.5 V |
| Temperature Grade | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
主な差別化要因
- 12-bit ADC at 8-bit pricing （vs PIC18F4520-I/PT)
- 32 KB flash double the PIC18F4423's 16 KB （vs PIC18F4423-I/PT)
- Larger 64 KB flash option in same package （vs PIC18F4620-I/PT)
設計ノート
The PIC18F4523-I/PT accepts 2.0 V to 5.5 V on VDD pins 10 and 32. Decouple each VDD pin with a 100 nF ceramic capacitor placed within 5 mm of the pin, plus a bulk 10 uF tantalum or aluminum electrolytic. For battery designs using nanoWatt sleep modes, route the VDD pair to separate analog/digital regulators if the design uses the ADC at full 12-bit resolution - noisy digital rails degrade ADC SNR by 1-2 ENOB.
Place the 40 MHz crystal or resonator within 5 mm of OSC1 (pin 1) and OSC2 (pin 13), with the load capacitors (typically 22-33 pF) returned to a clean ground island. For high-speed designs using the 12-bit ADC at full throughput, dedicate a quiet analog ground island for AVSS/AGND if applicable, and place ADC traces away from PWM and switching signals to minimize digital switching noise coupling into analog inputs.
Configuration bits (CONFIG1H through CONFIG5L) must be set correctly or the MCU will not run. Watch out for: (1) oscillator selection (HS vs XT vs RC) must match your crystal; (2) watchdog timer defaults to ON, which may surprise new designers; (3) low-voltage programming (LVP) defaults to enabled on some revisions, leaving RB5/PGM pin unusable as GPIO unless LVP is disabled; (4) MCLR must have a 10 kohm pull-up to VDD or the device will randomly reset under noise.
The 12-bit ADC achieves full resolution only with a low-impedance source (<= 10 kohm). If your sensor output impedance exceeds this (e.g. resistive dividers above 10 kohm), add a unity-gain op-amp buffer such as MCP6001 to drive the ADC input. Also, add a small RC filter (1 kohm + 100 nF) on each ANx input to filter RF pickup without significantly impacting settling time at typical 100 kHz ADC sampling rates.
コンプライアンス情報
RoHS compliant per Microchip product page. Industrial grade only - for AEC-Q100 automotive qualified parts, choose the PIC18F45K22-I/PT family instead. Lead-free and halogen-free per Microchip's environmental compliance data.