PIC18F4320T-I/PT - 8KB Flash 8-bit MCU 40MHz TQFP-44 | Microchip
部品番号: PIC18F4320T-I/PT ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $5.42 | $5.42 |
| 10 | $4.88 | $48.80 |
| 100 | $4.12 | $412.00 |
| 500 | $3.55 | $1,775.00 |
| 1,000 | $3.1 | $3,100.00 |
PIC18F4320T-I/PT 概要
A microcontroller (MCU) is a single-chip computer containing a CPU, RAM, non-volatile program memory, and peripherals such as timers, communication interfaces and ADCs. PIC18F-series parts sit in the 8-bit microcontrollers tier of the broader semiconductor hierarchy and are widely used for cost-sensitive embedded control. nanoWatt Technology is Microchip's family of dynamic power-management modes that reduce quiescent current during idle or sleep states to extend battery life.
Key features include 77 single-word instructions, an enhanced 16-bit instruction set, hardware multiplier, two 8-bit timers plus three 16-bit timers, a 10-bit ADC with up to 13 channels, and capture/compare/PWM (CCP) modules. The internal RC oscillator and wide operating voltage simplify designs by eliminating external clock components. PIC18F devices are supported by Microchip's MPLAB X IDE and XC8 compiler, providing a mature development ecosystem.
Typical applications include industrial control, consumer white goods, sensor signal conditioning, low-end human-machine interface (HMI), automotive body and aftermarket subsystems, and USB-to-UART bridges when paired with the PIC18F4550 family variant. With 36 I/O and 13 ADC channels the PIC18F4320 supports medium-density I/O designs that need modest processing.
When designing with this device, ensure VDD decoupling is placed close to the pins, leave MCLR accessible for in-system programming, and budget for a 5 V supply since the ADC reference and operating range require 4.2 V minimum. Compare against the 28-pin PIC18F2220 or 40-pin PIC18F4220 siblings when pin count or memory differ.
The PIC18F4320T-I/PT is widely stocked in distribution. The "T" suffix indicates tape-and-reel packaging and "I" denotes the industrial temperature grade. This page synthesizes distributor pricing, drop-in TQFP-44 alternatives, and practical design guidance not aggregated on the manufacturer datasheet.
ドロップイン代替品: PIC18F4320T-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: PIC18F4320T-I/PT （同一形状・フットプリント） — 相違点: Package, Core Architecture, Program Memory (Flash), ADC, Timers.
クイック比較ツール — 並列比較する代替部品を選択:
PIC18F4320-I/PT
✅ ドロップイン✓ 在庫あり
$3.62 / 個
データシートを見る →PIC18F4320-E/PT
✅ ドロップイン✓ 在庫あり
$4.2 / 個
データシートを見る →PIC18F4221T-I/PT
✅ ドロップイン✓ 在庫あり
$1.82 / 個
データシートを見る →PIC18F4220T-I/PT
✅ ドロップイン✓ 在庫あり
$2.57 / 個
データシートを見る →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 →PIC18F4420-I/PT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC18F4320T-I/PT 最大定格＆電気的特性
| Core Architecture | PIC 8-bit RISC |
| Core Size | 8-bit |
| Program Memory Size | 8 KB (4K x 16) Flash |
| RAM Size | 512 bytes |
| EEPROM Size | 256 bytes |
| Maximum CPU Speed | 40 MHz (10 MIPS) |
| Supply Voltage (VDD) | 4.2 V to 5.5 V |
| I/O Pins | 36 |
| ADC | 10-bit, up to 13 channels |
| Timers | 2 x 8-bit, 3 x 16-bit |
| CCP/PWM Modules | Yes (2) |
| Instruction Set | 77 single-word instructions, 16-bit wide |
| 動作温度範囲 | -40C to +85C (Industrial grade) |
| パッケージ | 44-pin TQFP (10 x 10 mm) |
| Packaging | Tape and Reel (T suffix) |
| 実装タイプ | Surface Mount |
| MSLレベル | 3 (per JEDEC J-STD-020) |
| RoHS ステータス | Compliant |
| nanoWatt Technology | Yes |
| Internal Oscillator | Yes (8 MHz, software selectable) |
PIC18F4320T-I/PT ピン構成
| ピン 1 | RA2/AN2/VREF-/CVREF — PORTA bit 2 / Analog input 2 / DAC negative reference / comparator reference output |
| ピン 2 | RA3/AN3/VREF+ — PORTA bit 3 / Analog input 3 / ADC positive reference |
| ピン 3 | RA4/T0CKI/C1OUT — PORTA bit 4 / Timer0 clock input / Comparator 1 output |
| ピン 4 | RA5/AN4/SS/LVDIN — PORTA bit 5 / Analog input 4 / SPI slave select / LVD input |
| ピン 5 | VSS — Ground reference |
| ピン 6 | OSC1/CLKI/RA7 — Crystal oscillator input / external clock input / PORTA bit 7 |
| ピン 7 | OSC2/CLKO/RA6 — Crystal oscillator output / clock output / PORTA bit 6 |
| ピン 8 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| ピン 9 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 input/output |
| ピン 10 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM output |
| ピン 11 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| ピン 12 | RD0/PSP0 — PORTD bit 0 / Parallel Slave Port bit 0 |
| ピン 13 | RD1/PSP1 — PORTD bit 1 / Parallel Slave Port bit 1 |
| ピン 14 | RD2/PSP2 — PORTD bit 2 / Parallel Slave Port bit 2 |
| ピン 15 | RD3/PSP3 — PORTD bit 3 / Parallel Slave Port bit 3 |
| ピン 16 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| ピン 17 | RC5/SDO — PORTC bit 5 / SPI data out |
| ピン 18 | RC6/TX/CK — PORTC bit 6 / USART async transmit / USART sync clock |
| ピン 19 | RC7/RX/DT — PORTC bit 7 / USART async receive / USART sync data |
| ピン 20 | RD4/PSP4 — PORTD bit 4 / Parallel Slave Port bit 4 |
| ピン 21 | RD5/PSP5 — PORTD bit 5 / Parallel Slave Port bit 5 |
| ピン 22 | RD6/PSP6 — PORTD bit 6 / Parallel Slave Port bit 6 |
| ピン 23 | RD7/PSP7 — PORTD bit 7 / Parallel Slave Port bit 7 |
| ピン 24 | VSS — Ground reference |
| ピン 25 | VDD — Positive supply voltage |
| ピン 26 | RB0/INT0/FLT0 — PORTB bit 0 / External interrupt 0 / PWM fault input |
| ピン 27 | RB1/INT1 — PORTB bit 1 / External interrupt 1 |
| ピン 28 | RB2/INT2 — PORTB bit 2 / External interrupt 2 |
| ピン 29 | RB3/INT3/CCP2 — PORTB bit 3 / External interrupt 3 / CCP2 alternate |
| ピン 30 | RB4 — PORTB bit 4 (interrupt-on-change) |
| ピン 31 | RB5 — PORTB bit 5 (interrupt-on-change) |
| ピン 32 | RB6/PGC — PORTB bit 6 / ICSP clock (programming) |
| ピン 33 | RB7/PGD — PORTB bit 7 / ICSP data (programming) |
| ピン 34 | RE0/RD/AN5 — PORTE bit 0 / Parallel Slave Port read / Analog input 5 |
| ピン 35 | RE1/WR/AN6 — PORTE bit 1 / Parallel Slave Port write / Analog input 6 |
| ピン 36 | RE2/CS/AN7 — PORTE bit 2 / Parallel Slave Port chip select / Analog input 7 |
| ピン 37 | MCLR/VPP — Master clear reset (active low) / programming voltage input |
| ピン 38 | RA0/AN0 — PORTA bit 0 / Analog input 0 |
| ピン 39 | RA1/AN1 — PORTA bit 1 / Analog input 1 |
| ピン 40 | VDD — Positive supply voltage |
| ピン 41 | VSS — Ground reference |
| ピン 42 | RB7 — PORTB bit 7 alternate (ICSP data) |
| ピン 43 | RB6 — PORTB bit 6 alternate (ICSP clock) |
| ピン 44 | AVDD — Analog positive supply voltage (tie to VDD) |
主な用途
PIC18F4320T-I/PT の用途: 7 件s: Industrial Control Systems, Consumer White Goods, Automotive Body and Aftermarket Electronics, Sensor Signal Conditioning Hubs, HMI Keypad and Display Controllers, Battery-Backed Data Loggers, Educational and Hobbyist Projects.
Industrial Control Systems
The PIC18F4320T-I/PT fits industrial control applications because its 36 I/O pins drive relays, solenoids and indicator LEDs directly, the 13-channel 10-bit ADC reads multiple sensor inputs, and the 8 KB Flash accommodates PID control loops with state-machine firmware. At 5 V and -40C to +85C the part handles factory-floor temperature swings. Compared to discrete logic controllers, the integrated CCP/PWM modules generate timing pulses for motor control, eliminating external timer ICs and reducing BOM cost.
おすすめ
Consumer White Goods
The PIC18F4320T-I/PT suits washing machines, microwave ovens and air-conditioner control boards because it integrates user-interface driving (keypad scanning, LED/LCD multiplexing) and sensor reading (temperature, water level, door switch) on a single chip. The nanoWatt sleep modes drop quiescent current to microamps in standby, saving energy when the appliance is idle. The 40 MHz clock handles 7-segment display refresh and button-debounce routines without CPU bottlenecking.
おすすめ
Automotive Body and Aftermarket Electronics
The PIC18F4320T-I/PT powers aftermarket automotive controllers such as alarm systems, central locking modules and gauge clusters because it supports -40C to +85C operation and 5 V supply rails common in 12 V vehicle systems. The enhanced USART interfaces with LIN bus transceivers for body networks, while the MSSP drives SPI peripherals such as EEPROM memory and SPI displays. For under-hood applications requiring 125C, upgrade to PIC18F4320-E/PT extended temperature variant.
おすすめ
Sensor Signal Conditioning Hubs
The PIC18F4320T-I/PT acts as a multi-sensor aggregator that reads 4-20 mA or 0-10 V analog inputs via its 13-channel ADC, applies linearization in firmware, and outputs processed values over RS-485 UART or SPI. Its 10 MIPS CPU runs digital filtering (moving-average, IIR) faster than PIC16F siblings, and the 8 KB Flash holds calibration tables and look-up routines for thermocouples, RTDs, and strain gauges. The internal 8 MHz oscillator eliminates external crystal cost in remote sensor nodes.
おすすめ
HMI Keypad and Display Controllers
The PIC18F4320T-I/PT serves as a low-cost HMI controller driving 4x4 matrix keypads, character LCDs (HD44780-compatible), and tri-color LED indicators because of its 36 I/O and PWM-capable CCP modules. The MSSP peripherals drive SPI displays and I2C EEPROMs concurrently, while the 10 MIPS throughput debounces key presses and refreshes LCD segments without perceived latency. For touch-screen HMIs requiring more RAM, upgrade to PIC18F47K40 family.
おすすめ
Battery-Backed Data Loggers
The PIC18F4320T-I/PT supports low-duty-cycle data logging applications when paired with an external RTC and serial EEPROM. The nanoWatt sleep current keeps quiescent draw low, while periodic wake-ups let the ADC sample temperature, voltage or pressure and store readings in external EEPROM over I2C. The 256-byte on-chip EEPROM provides backup storage for configuration data, while 8 KB Flash holds the logging firmware and compression routines.
おすすめ
Educational and Hobbyist Projects
The PIC18F4320T-I/PT is well suited for university embedded-systems courses and hobbyist projects because of its mature toolchain (MPLAB X IDE, XC8 compiler, PICkit programmers), extensive code examples, and breadboard-friendly TQFP-44 footprint with adapter PCB. The 8 KB Flash accommodates full C-based curricula including GPIO, timers, ADC, UART and interrupt programming. The device's PIC18 instruction set is widely documented in textbooks, easing learning.
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: PIC18F4320T-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 | PIC18F4320-I/PT | PIC18F4320-E/PT | PIC18F4221T-I/PT | PIC18F4220T-I/PT | PIC18F4520-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-44 (10x10 mm) | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same |
| Flash Memory | 8 KB | 8 KB | 8 KB | 16 KB | 4 KB | 32 KB |
| RAM | 512 B | 512 B | 512 B | 768 B | 512 B | 1536 B |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| Max Clock Speed | 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 | 36 | 36 | 36 | 36 | 36 | 36 |
| ADC Channels | 13 x 10-bit | 13 x 10-bit | 13 x 10-bit | 13 x 10-bit | 13 x 10-bit | 13 x 10-bit |
| 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 | 4.2 V to 5.5 V |
| Temperature Grade | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Packaging | Tape & Reel | Tray | Tray | Tape & Reel | Tape & Reel | Tray |
主な差別化要因
- Same 44-pin TQFP-44 package across the entire PIC18F4320 family （vs PIC18F4520-I/PT)
- Industrial vs Extended temperature grading is the only difference within the family （vs PIC18F4320-E/PT)
- Tape-and-reel packaging optimized for SMT production lines （vs PIC18F4320-I/PT)
設計ノート
Decouple both VDD pins (25 and 40) with 100 nF ceramic capacitors placed within 5 mm of the pin, plus a bulk 10 uF tantalum or aluminum capacitor. Tie AVDD to VDD through a ferrite bead or 10 ohm resistor to filter ADC analog supply noise. For battery operation, the nanoWatt Sleep mode draws approximately 100 nA typical at 3 V - 30x lower than Run mode, so duty-cycling is essential. Brown-out reset must be enabled in CONFIG1L to protect against low-voltage Flash corruption.
TQFP-44 (10x10 mm, 0.8 mm pitch) requires PCB fabrication with 0.4 mm via-in-pad or tented vias; hand-soldering is feasible with a fine tip and flux but a reflow profile per JEDEC J-STD-020 is preferred for production. Route the ICSP pins (RB6/PGC, RB7/PGD, MCLR/VPP) directly to a 6-pin header with no series resistors for in-circuit programming. Place the crystal oscillator within 5 mm of OSC1/OSC2 and guard the traces with a ground pour to reduce EMI.
Do not leave MCLR floating - tie it to VDD through a 10 kohm resistor for normal operation, or drive it from a supervisor / reset IC for production boards. A floating MCLR causes erratic resets. When using the internal oscillator, configure OSCCON defaults in firmware startup - leaving the fuse-set external crystal mode uninitialized traps the MCU. For ADC accuracy, add 1 uF + 100 nF on the VREF+ pin (RA3) when used as a reference, and average at least 16 samples to suppress noise.
Route the analog inputs (AN0-AN7 on PORTA and PORTE) away from digital switching signals to preserve ADC SNR. The PSP bus pins (RD0-RD7, RE0-RE2) are 5 V tolerant and drive higher currents than other I/O; route them on a separate bus and add 100 ohm series resistors near the MCU to dampen reflections when used with parallel peripherals. The CCP1/CCP2 PWM outputs (RC2, RC1) should route to MOSFET gates via 10 ohm gate resistors to control slew rate.
コンプライアンス情報
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - choose PIC18F4320-E/PT for extended temperature or other AEC-Q100-qualified PIC18F family members for automotive. Lead-free matte-tin plating. Halogen-free molding compound. Conflict-minerals declaration per Microchip sustainability report.