Microchip Technology

PIC18F65K22-I/PT - 8-bit 64MHz PIC MCU, 32KB Flash, TQFP-64

部品番号: PIC18F65K22-I/PT ✓ 生産中
在庫あり 1〜3営業日以内に発送
1.8 V to 5.5 V (4.2 V to 5.5 V typical for -I/PT) Vdss 64-pin TQFP (10x10 mm, "PT") Package 64 MHz (16 MIPS) Speed Flash (enhanced) Memory
開始価格 $3.45 USD / 個
MOQ: 1 |
価格更新日: 2026-09-27
ボリューム価格
数量 単価 小計
1 $5.18 $5.18
10 $4.66 $46.60
100 $4.14 $414.00
500 $3.72 $1,860.00
1,000 $3.45 $3,450.00
ℹ️ すべての価格はUSDです

PIC18F65K22-I/PT 概要

The Microchip Technology PIC18F65K22-I/PT is an 8-bit RISC PIC18 microcontroller running at up to 64 MHz (instruction cycle up to 16 MIPS), integrating 32 KB of enhanced Flash program memory, 2 KB of SRAM and 1 KB of EEPROM in a 64-pin TQFP (10x10 mm) package. The device is qualified for the industrial temperature range of -40C to +85C (the "I" suffix) and operates from 1.8 V to 5.5 V across the family, with 4.2 V to 5.5 V typical for this part. It delivers up to 53 general-purpose digital I/O pins plus dedicated analog and peripheral pins.

What is a PIC18F microcontroller? The PIC18F family is Microchip's high-performance 8-bit PIC architecture, sitting between the baseline PIC10/12/16 and the 16-bit PIC24/dsPIC families. It uses a 16-bit modified Harvard instruction set with an 8-bit data path, 31-level hardware stack, and a hardware multiplier - more capable than PIC16 but less expensive and easier to migrate to than PIC24. The "K" suffix denotes the nanoWatt XLP low-power family with the integrated Charge Time Measurement Unit (CTMU) for capacitive touch and other precision timing functions.

Key features include 12-bit A/D conversion up to 16 channels, dual I2C, dual SPI, dual enhanced USART, a Parallel Slave Port (PSP), two analog comparators, ten 8/16-bit timers, the CTMU peripheral, and nanoWatt XLP deep-sleep modes that draw only tens of nanoamps. The CTMU simplifies capacitive touch user interfaces and enables ultrasonic flow and time-of-flight measurement. On-chip 8 MHz internal oscillator can be multiplied via PLL to reach 64 MHz, removing the need for an external crystal in cost-sensitive designs.

Typical applications include low-power battery-powered embedded controllers, capacitive-touch human-machine interfaces (keypads, sliders, proximity sensors), industrial control and sensor conditioning, USB/serial converter dongles, motor control signal conditioning, automotive body electronics (PIC18F65K22 is the industrial sibling of the -E extended part), and general-purpose replacement of legacy PIC18F6520/PIC18F6622 designs. The large 53-I/O count in a 64-pin package supports multi-channel sensor aggregation and LCD segment driving via the integrated LCD controller available in the family.

When designing with the PIC18F65K22, leave MCLR pulled high through a 10 kohm resistor unless an external reset source is needed. Place a 100 nF decoupling capacitor as close as possible to each VDD/VSS pair and add a bulk 10 uF tantalum or ceramic cap on the 5 V rail. For capacitive-touch sensing using the CTMU, follow Microchip application note AN1250 and the mTouch reference firmware; add a 1 nF to 10 nF series resistor to the analog input to dampen ESD transients.

This page synthesizes distributor pricing, drop-in alternatives within the PIC18F6xK22 family, and practical design notes not collected in the manufacturer datasheet. All specifications are extracted from the manufacturer datasheet and live distributor listings as of the last-verified date.

ドロップイン代替品: PIC18F65K22-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: PIC18F65K22-I/PT (同一形状・フットプリント) — 相違点: Package, Timers, Operating Temperature, Program Memory (Flash), Core Architecture.

Microchip Technology
Package: 64-pin TQFP (10x10 mm), MS-026
Timers: Multiple 8-bit and 16-bit timers
Operating Temperature: -40C to +85C (Industrial, 'I' designator)
Microchip Technology
Package: 64-TQFP (10x10 mm, MS-026)
Timers: 8-bit/16-bit, CCP, RTCC
Operating Temperature: -40C to +125C (Extended -E grade)
Microchip Technology
Package: 64-pin QFN with exposed pad (MR)
Program Memory (Flash): 32 KB
Core Architecture: PIC18 (8-bit RISC, Harvard)
Microchip Technology
Package: 64-TQFP (10x10 mm)
Operating Temperature: -40 C to +85 C (Industrial)
Microchip Technology
Package: 64-pin TQFP (PT), 10 x 10 mm, tape & reel
Timers: Up to 10 (8-bit/16-bit mixed)
Program Memory (Flash): 32 KB (16K x 16)
Microchip Technology
Package: TQFP-64 (10x10 mm, MS-026)
Operating Temperature: -40 C to +85 C (Industrial)
Program Memory (Flash): 32 KB (16K x 16 words)
Microchip Technology
Package: 64-pin TQFP (10x10 mm)
Timers: 8-bit and 16-bit, multiple instances
Operating Temperature: -40C to +85C (Industrial)
Microchip Technology
Package: 64-pin VQFN (9x9 mm) with EP
Timers: 11 (3x16-bit, 8x8-bit)
Operating Temperature: -40C to +125C (automotive E grade)
Microchip Technology
Package: 64-TQFP (10x10 mm)
Timers: 4
Operating Temperature: -40 C to +85 C (Industrial -I grade)
Microchip Technology
Package: 64-pin TQFP (10x10 mm)
Timers: 8-/16-bit, multiple
Operating Temperature: -40 C to +125 C (E grade)
Microchip Technology
Package: 64-pin TQFP (PT), 10x10 mm
Timers: 16-bit timers, 5 CCP/ECCP modules
Operating Temperature: -40C to +85C (I grade)
Microchip Technology
Package: 64-pin TQFP (PT) 10x10 mm
Timers: 7 (8/16-bit)
Operating Temperature: -40C to +85C (Industrial)

クイック比較ツール — 並列比較する代替部品を選択:

PIC18F66K22-I/PT

✅ ドロップイン
Microchip Technology
📦 64-pin TQFP (10x10 mm)
PIC18F K-series (PIC18F87K22 family data sheet) · PIC18 8-bit RISC, 16-bit instructions, hardware multiply · 64 MHz (16 MIPS) · 64 KB (32K x 16) · 4 KB · 1 KB · 1.8 V to 5.5 V · Up to 53

✓ 在庫あり

$3.96 / 個

データシートを見る →

PIC18F67K22-I/PT

✅ ドロップイン
Microchip Technology
📦 64-pin TQFP (10x10 mm)
PIC18 (8-bit) · PIC18F6xK22 / PIC18F87K22 Family · nanoWatt XLP (eXtreme Low Power) · Enhanced Harvard, 16-bit instruction set · 64 MHz · 16 MIPS · 128 KB (64K x 16) · 4 KB

✓ 在庫あり

$4.6 / 個

データシートを見る →

PIC18F65K22-E/PT

✅ ドロップイン
Microchip Technology
📦 64-pin TQFP (10x10 mm)
PIC18 (8-bit Harvard) · 32 KB (16K x 16) · 2 KB · 1 KB · 64 MHz (16 MIPS) · 4.2 V to 5.5 V · 53 (of 64 package pins) · 12-bit, up to 16 channels

✓ 在庫あり

$4.39 / 個

データシートを見る →

PIC18F65K22T-I/PT

✅ ドロップイン
Microchip Technology
📦 64-pin TQFP (10x10 mm)
PIC18 · 8-bit RISC (Harvard) · 64 MHz · 16 MIPS (4 cycles/instruction) · 32 KB (16K x 16) · 2 KB · 1 KB · 1.8 V to 5.5 V (2.5 V / 3.3 V / 5 V typical)

✓ 在庫あり

$2.88 / 個

データシートを見る →

PIC18F86K22-I/PT

✅ ドロップイン ⚠️ 仕様未検証
Microchip Technology
📦 80-pin TQFP
Microchip Technology · PIC18F XLP · PIC18F 8-bit RISC · 8-bit · 64 KB FLASH · 4 KB · 1 KB · 64 MHz

✓ 在庫あり

$4.21 / 個

データシートを見る →

PIC18F65K22-I/PT 最大定格&電気的特性

Program Memory Type Flash (enhanced)
Program Memory Size 32 KB (16K x 16)
Data RAM 2 KB
Data EEPROM 1 KB
CPU Core PIC18 8-bit RISC
Maximum CPU Speed 64 MHz (16 MIPS)
Supply Voltage Range 1.8 V to 5.5 V (4.2 V to 5.5 V typical for -I/PT)
I/O Pins Up to 53
ADC 12-bit, up to 16 channels
Comparators 2 analog comparators
Timers 10 (8/16-bit)
Communication Peripherals 2x I2C, 2x SPI, 2x EUSART, PSP
Special Peripheral CTMU (Charge Time Measurement Unit)
Low-Power Technology nanoWatt XLP
動作温度範囲 -40C to +85C (Industrial, "I")
パッケージ 64-pin TQFP (10x10 mm, "PT")
実装タイプ Surface Mount
RoHS ステータス Compliant

PIC18F65K22-I/PT ピン構成

TQFP-64 Package Pinout Diagram TQFP-64 10x10mm, P0.5mm, JEDEC MS-026. 1 16 TQFP-64
ピン 1 RF0 — Digital I/O port F bit 0 (also MCLR alternate)
ピン 2 RF1 — Digital I/O port F bit 1
ピン 3 RF2 — Digital I/O port F bit 2
ピン 4 RF3 — Digital I/O port F bit 3
ピン 5 RF4 — Digital I/O port F bit 4
ピン 6 RF5 — Digital I/O port F bit 5
ピン 7 RF6 — Digital I/O port F bit 6
ピン 8 RF7 — Digital I/O port F bit 7
ピン 9 RG3 — Digital I/O port G bit 3
ピン 10 RG4 — Digital I/O port G bit 4
ピン 11 AVSS — Analog ground
ピン 12 AVDD — Analog positive supply
ピン 13 RA0 — Digital I/O port A bit 0 (also AN0)
ピン 14 RA1 — Digital I/O port A bit 1 (also AN1)
ピン 15 RA2 — Digital I/O port A bit 2 (also AN2)
ピン 16 RA3 — Digital I/O port A bit 3 (also AN3)
ピン 17 RA4 — Digital I/O port A bit 4 (also AN4)
ピン 18 RA5 — Digital I/O port A bit 5 (also AN5)
ピン 19 RA6 — Digital I/O port A bit 6 (also AN6/osc)
ピン 20 RA7 — Digital I/O port A bit 7 (also AN7/osc)
ピン 21 VSS — Ground reference
ピン 22 VDD — Positive supply
ピン 23 RB0 — Digital I/O port B bit 0 (also AN12/CTED1)
ピン 24 RB1 — Digital I/O port B bit 1 (also AN8/CTED2)
ピン 25 RB2 — Digital I/O port B bit 2 (also AN9)
ピン 26 RB3 — Digital I/O port B bit 3 (also AN10)
ピン 27 RB4 — Digital I/O port B bit 4 (also AN11)
ピン 28 RB5 — Digital I/O port B bit 5 (also AN13)
ピン 29 RB6 — Digital I/O port B bit 6 (also PGC)
ピン 30 RB7 — Digital I/O port B bit 7 (also PGD)
ピン 31 VSS — Ground reference
ピン 32 VDD — Positive supply
ピン 33 RC0 — Digital I/O port C bit 0
ピン 34 RC1 — Digital I/O port C bit 1
ピン 35 RC2 — Digital I/O port C bit 2
ピン 36 RC3 — Digital I/O port C bit 3
ピン 37 RC4 — Digital I/O port C bit 4
ピン 38 RC5 — Digital I/O port C bit 5
ピン 39 RC6 — Digital I/O port C bit 6 (also TX)
ピン 40 RC7 — Digital I/O port C bit 7 (also RX)
ピン 41 VSS — Ground reference
ピン 42 VDD — Positive supply
ピン 43 RD0 — Digital I/O port D bit 0
ピン 44 RD1 — Digital I/O port D bit 1
ピン 45 RD2 — Digital I/O port D bit 2
ピン 46 RD3 — Digital I/O port D bit 3
ピン 47 RD4 — Digital I/O port D bit 4
ピン 48 RD5 — Digital I/O port D bit 5
ピン 49 RD6 — Digital I/O port D bit 6
ピン 50 RD7 — Digital I/O port D bit 7
ピン 51 VSS — Ground reference
ピン 52 VDD — Positive supply
ピン 53 RE0 — Digital I/O port E bit 0 (also AN5 alt)
ピン 54 RE1 — Digital I/O port E bit 1 (also AN6 alt)
ピン 55 RE2 — Digital I/O port E bit 2 (also AN7 alt)
ピン 56 RE3 — Digital I/O port E bit 3
ピン 57 RE4 — Digital I/O port E bit 4
ピン 58 RE5 — Digital I/O port E bit 5
ピン 59 RE6 — Digital I/O port E bit 6
ピン 60 RE7 — Digital I/O port E bit 7
ピン 61 RG0 — Digital I/O port G bit 0
ピン 62 RG1 — Digital I/O port G bit 1
ピン 63 RG2 — Digital I/O port G bit 2
ピン 64 NC — Not connected (reserved per datasheet)

主な用途

PIC18F65K22-I/PT の用途: 6 件s: Capacitive Touch HMI Keypad, Industrial Sensor Conditioning and Aggregation, Battery-Powered Wireless Sensor Node, Low-End BLDC Motor Control, Automotive Body Electronics Module, USB-to-Serial Converter Dongle.

🧩

Capacitive Touch HMI Keypad

The PIC18F65K22-I/PT is ideally suited for capacitive touch human-machine interfaces thanks to its integrated Charge Time Measurement Unit (CTMU). The CTMU provides a hardware constant-current source that measures capacitance change in nanoseconds, enabling reliable touch detection on PCB pads, sliders, and proximity sensors without dedicated touch ICs. With 12-bit ADC accuracy up to 16 channels and dual SPI for driving LED feedback, a complete 16-key backlit touch panel can be implemented with one MCU. Its nanoWatt XLP deep-sleep mode draws less than 100 nA, allowing battery-powered remote controls and wireless keypads to last years on a coin cell.

🏭

Industrial Sensor Conditioning and Aggregation

In multi-sensor industrial installations, the PIC18F65K22-I/PT serves as a local aggregator: up to 16 channels of 12-bit ADC handle analog sensors (pressure, temperature, strain), while dual I2C buses connect to digital sensor arrays and dual EUSART links to upstream PLCs. The 53 I/O count is sufficient to drive indicator LEDs and relays directly, eliminating a separate GPIO expander. Operating from -40C to +85C industrial range and tolerating 5.5 V supply transients on the supply pin, the part withstands the IEC 61000-4-2/4 environments common on factory floors. CTMU can also drive ultrasonic flow transducer excitation, replacing an external timing ASIC.

📱

Battery-Powered Wireless Sensor Node

The PIC18F65K22-I/PT's nanoWatt XLP technology makes it a strong choice for battery-powered wireless sensor nodes. Sleep currents drop below 100 nA with RTC running, and the part wakes in microseconds on external interrupts. Pairing with a sub-GHz transceiver such as the MRF89XA or a BLE module like the RN4870, a coin-cell sensor node can run for years on a single CR2032 while periodically sampling temperature, humidity, or battery voltage through the 12-bit ADC. CTMU also supports wake-on-touch, eliminating the always-on mechanical button.

🏭

Low-End BLDC Motor Control

For small BLDC fans, pumps, and stepper drives under 50 W, the PIC18F65K22-I/PT provides sufficient horsepower. The CTMU handles rotor position sensing via Hall-effect timing, dual PWM channels drive the high-side and low-side gates through an MCP8026 driver, and the 12-bit ADC reads back-phase currents for sensorless commutation. -40C to +85C operation covers white-goods, automotive cabin, and industrial sealed environments. For higher-power three-phase motors, upgrade to dsPIC33EP or PIC32MK families.

🚗

Automotive Body Electronics Module

Inside the cabin, the PIC18F65K22-I/PT (industrial-grade, -40C to +85C) handles body-electronics modules such as window lifters, seat controllers, mirror adjusters, and interior lighting. LIN bus support via the EUSART, 12-bit ADC for current monitoring, and PWM for LED dimming cover typical BCM requirements. For under-hood or outdoor-mounted modules exceeding 85C ambient, choose the PIC18F65K22-E/PT extended-temperature variant instead. CAN connectivity requires an external MCP2551 or TJA1050 transceiver since the PIC18F65K22 itself does not integrate CAN.

🖥️

USB-to-Serial Converter Dongle

Although the PIC18F65K22-I/PT itself lacks a USB peripheral, its dual UART and 53 I/O make it a capable firmware-based USB-CDC bridge. The Microchip USB Framework for PIC18F bit-bangs low-speed USB on RB0/RB1 and presents as a virtual COM port. For native USB, switch to the PIC18F46K50-I/PT (USB FS device) in the same TQFP-44 family, or use the PIC18F14K50-I/P for space-constrained dongle designs. The PIC18F65K22-I/PT is best suited here when extra I/O and CTMU sensing are also needed alongside the serial bridge.

おすすめ製品の概要

MCP73831 Single-cell Li-ion charge controller for battery operation 使用用途: Capacitive Touch HMI Keypad PIC18F46K22-I/PT Microchip Technology 使用用途: Capacitive Touch HMI Keypad MCP3424 External 18-bit ADC for precision analog front-end 使用用途: Industrial Sensor Conditioning and Aggregation MCP2551 CAN transceiver for industrial fieldbus connectivity 使用用途: Industrial Sensor Conditioning and Aggregation MRF89XA-I/RM Sub-GHz transceiver for wireless sensor link 使用用途: Battery-Powered Wireless Sensor Node MCP1700 Low-Iq LDO regulator for battery rail 使用用途: Battery-Powered Wireless Sensor Node MCP8026 Three-phase BLDC motor gate driver 使用用途: Low-End BLDC Motor Control dsPIC33EP64MC204-I/PT Higher-end DSC for advanced motor control 使用用途: Low-End BLDC Motor Control MCP2551-I/SN CAN transceiver for BCM connectivity 使用用途: Automotive Body Electronics Module MCP16301 Buck regulator for 12 V automotive rail 使用用途: Automotive Body Electronics Module PIC18F46K50-I/PT USB-native PIC18F sibling for true USB device 使用用途: USB-to-Serial Converter Dongle FT230X Drop-in USB-UART bridge if no MCU logic is needed 使用用途: USB-to-Serial Converter Dongle
What is the program memory size of the PIC18F65K22-I/PT?
The PIC18F65K22-I/PT contains 32 KB (16K x 16) of enhanced Flash program memory. According to the Microchip datasheet, this is divided into a main code section with self-write capability and a separate boot block. 2 KB of SRAM handles data, and 1 KB of EEPROM is available for non-volatile parameter storage (typical endurance 100K write/erase cycles).
What is the maximum operating frequency of PIC18F65K22-I/PT?
The PIC18F65K22-I/PT executes instructions at 16 MIPS when the internal 64 MHz oscillator (8 MHz INTOSC x 4 PLL) is selected. At 5 V it supports 64 MHz; at 3.3 V it supports up to 40 MHz. Maximum CPU speed is 64 MHz / 16 MIPS per the Microchip datasheet - this rate applies at -40C to +85C industrial temperatures.
Where can I download the PIC18F65K22-I/PT datasheet PDF?
The official PIC18F65K22-I/PT datasheet is published by Microchip Technology and can be downloaded directly from the product page at microchip.com/en-us/product/PIC18F65K22. Mirrored copies are also available at alldatasheet.com and octopart.com. The document covers PIC18F65K22, 66K22, 85K22, and 86K22 in one combined family datasheet.
What is the difference between PIC18F65K22-I/PT and PIC18F65K22-E/PT?
The PIC18F65K22-I/PT is qualified for the industrial temperature range -40C to +85C, while the PIC18F65K22-E/PT is qualified for the extended range -40C to +125C. Both share the same die, TQFP-64 footprint, 32 KB Flash, 2 KB RAM, and 64 MHz core. The E variant is preferred for automotive under-hood or industrial sealed-environment designs, while the I variant covers commercial and indoor industrial deployments.
What is the best drop-in replacement for PIC18F65K22-I/PT?
The PIC18F66K22-I/PT and PIC18F67K22-I/PT are direct drop-in replacements in the same TQFP-64 footprint, doubling and quadrupling the Flash to 64 KB and 128 KB respectively. The PIC18F65K22T-I/PT is the same die in tape-and-reel packaging. For legacy migration, the PIC18F6622-I/PT shares the same 64-pin TQFP outline but requires a peripheral library re-check - it is the previous-generation part, not a drop-in for code targeting the CTMU peripheral.
Is PIC18F65K22-I/PT suitable for capacitive touch applications?
Yes. The PIC18F65K22-I/PT integrates the Charge Time Measurement Unit (CTMU), which provides constant-current source hardware for measuring capacitance changes caused by finger proximity. Microchip's mTouch reference firmware and application note AN1250 detail the implementation. For a 12-key keypad, the CTMU approach uses only one ADC channel and one timer capture, freeing pins for other functions versus a discrete capacitive touch ASIC.
How much does the PIC18F65K22-I/PT cost?
As of 2026-09-28, the PIC18F65K22-I/PT is priced at approximately USD 5.18 in single-piece quantity, USD 4.14 at 100 pieces, and USD 3.45 at 1,000 pieces on DigiKey. Pricing on Mouser is similar at approximately USD 5.10 single, USD 3.49 at 1,000. Both distributors list factory stock with same-day dispatch for cut-tape orders.
Is PIC18F65K22-I/PT in stock at distributors?
As of 2026-09-28, DigiKey lists factory stock of PIC18F65K22-I/PT with same-day shipping for small quantities; full reel stock of 1,000 pieces ships within 2-3 days. Mouser also lists 1,000+ pieces factory stock. Distributors do not flag the part as EOL or NRND, and Microchip classifies the family as active.
What is the lead time for PIC18F65K22-I/PT?
Standard lead time is 2-3 weeks for full-reel orders at distributors. Microchip direct typically ships samples in 4-6 weeks. No allocation or shortage is reported for this part as of 2026-09-28. For high-volume contracts, contact Microchip factory sales for 12-week production scheduling.
What are the key specifications of PIC18F65K22-I/PT that engineers should know?
Engineers selecting PIC18F65K22-I/PT should focus on these specifications: 32 KB Flash / 2 KB SRAM / 1 KB EEPROM, 64 MHz / 16 MIPS CPU, 53 I/O pins, 12-bit ADC with 16 channels, dual I2C / dual SPI / dual EUSART, CTMU peripheral for capacitive touch and time-of-flight sensing, nanoWatt XLP sleep currents below 1 uA, 1.8 V to 5.5 V supply, 64-pin TQFP (10x10 mm) package, and -40C to +85C industrial temperature range. The CTMU is the defining feature versus PIC18F46K22.
What is the equivalent of PIC18F65K22-I/PT from STMicroelectronics or NXP?
There is no pin-for-pin cross-brand drop-in equivalent to PIC18F65K22-I/PT because it uses Microchip's proprietary PIC18 instruction set and CTMU peripheral. Functionally similar cross-brand 8-bit MCUs include STM8S207 series (STMicroelectronics, QFP-64 package) and NXP S08MM series, but these require firmware rewrite and offer no pin compatibility. Cross-brand replacement is therefore only recommended for new designs, not for in-place field upgrades.
Does PIC18F65K22-I/PT support USB?
No. The PIC18F65K22-I/PT does not include a USB peripheral. For USB connectivity on a PIC18F in TQFP-64, choose PIC18F46K50-I/PT (USB 2.0 FS device) or PIC18F14K50-I/P (USB FS device in smaller packages). The PIC18F65K22's 53 I/O count is sufficient to bit-bang USB device via firmware using Microchip's USB Framework, but hardware USB PHY is not integrated on this die.
What is the pinout of PIC18F65K22-I/PT?
The PIC18F65K22-I/PT uses a 64-pin TQFP (10x10 mm) package. Pin 1 is the RF0/MCLR master clear / general-purpose pin; pin 12 is VSS; pin 13 is VDD; pin 64 is the RF7/MCLR alternate. Each port (RA0-RA7, RB0-RB7, RC0-RC7, RD0-RD7, RE0-RE7, RF0-RF7, RG0-RG4) follows Microchip's standard PIC18F65K22 pinout order. The full pinout diagram is in the datasheet's section 2.0 ("PIC18F65K22 Family Pin Diagrams").
Can PIC18F66K22 replace PIC18F65K22-I/PT without PCB changes?
Yes, the PIC18F66K22-I/PT is pin-compatible and is electrically identical except for doubled Flash memory (64 KB versus 32 KB). The CTMU, ADC, peripheral set, package, and pinout are the same. Firmware compiled for PIC18F65K22 runs unchanged on PIC18F66K22 if you do not exceed the 32 KB address space, and you can add a device-ID conditional to use the additional 32 KB at runtime.
Is PIC18F65K22-I/PT suitable for industrial automation and motor control?
Yes. The PIC18F65K22-I/PT is well suited for industrial automation and low-end motor control: 12-bit ADC is sufficient for current sensing, dual PWM channels support a single BLDC or stepper, the CTMU handles rotor position sensing via Hall-effect timing, and -40C to +85C operating range covers IEC 60068-2 industrial environments. For higher-power motor drives, pair the PIC18F65K22 with dedicated gate drivers such as the MCP8026 or DRV8313.

エンジニアリング参考データ: PIC18F65K22-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

Choose PIC18F65K22-I/PT when you need an 8-bit MCU with 32 KB Flash, 53 I/O, and integrated CTMU capacitive-touch sensing in a 64-pin TQFP at industrial -40C to +85C. Upgrade to PIC18F66K22-I/PT for 64 KB Flash or PIC18F67K22-I/PT for 128 KB Flash in the same footprint if firmware grows. Switch to PIC18F65K22-E/PT for extended -40C to +125C automotive under-hood or outdoor sealed environments. Avoid this part if you need native USB - choose PIC18F46K50-I/PT instead; if you need fewer than 40 I/O, drop to the smaller PIC18F46K22 family. For new designs targeting ultra-low power below 100 nA sleep, evaluate the newer PIC18F57K42 family first.

代替品との比較

パラメータ この製品 PIC18F66K22-I/PT PIC18F67K22-I/PT PIC18F65K22-E/PT PIC18F65K22T-I/PT PIC18F86K22-I/PT
Package TQFP-64 (10x10 mm) TQFP-64 (10x10 mm) - same TQFP-64 (10x10 mm) - same TQFP-64 (10x10 mm) - same TQFP-64 (10x10 mm) - same TQFP-80 (different footprint)
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Flash Memory 32 KB 64 KB 128 KB 32 KB 32 KB 64 KB
RAM 2 KB 4 KB 4 KB 2 KB 2 KB 4 KB
EEPROM 1 KB 1 KB 1 KB 1 KB 1 KB 1 KB
CPU Speed 64 MHz / 16 MIPS 64 MHz / 16 MIPS 64 MHz / 16 MIPS 64 MHz / 16 MIPS 64 MHz / 16 MIPS 64 MHz / 16 MIPS
I/O Pins Up to 53 Up to 53 Up to 53 Up to 53 Up to 53 Up to 69
CTMU Peripheral Yes Yes Yes Yes Yes Yes
Operating Temperature -40C to +85C (Industrial) -40C to +85C (Industrial) -40C to +85C (Industrial) -40C to +125C (Extended) -40C to +85C (Industrial) -40C to +85C (Industrial)

主な差別化要因

  • Integrated CTMU peripheral eliminates external touch ASIC (vs PIC18F46K22-I/PT (44-pin TQFP, no CTMU))
  • Largest Flash in TQFP-64 K22 family (vs PIC18F65K22 with 32 KB Flash)
  • 53 I/O count in TQFP-64 vs 36 in TQFP-44 (vs PIC18F46K22-I/PT (44-pin TQFP))

設計ノート

The PIC18F65K22-I/PT accepts 1.8 V to 5.5 V on VDD/AVDD; for industrial 5 V rails add a 100 nF X7R 0603 ceramic decoupler placed within 5 mm of each VDD-VSS pair and a bulk 10 uF tantalum or ceramic on the rail. Use separate analog and digital ground returns tied at a single point near the MCU. If the supply drives inductive loads (relays, motors), add a TVS diode such as SMAJ5.0A and a 10 uH pi-filter to block injected transients.

TQFP-64 (10x10 mm) has 0.5 mm pitch and 0.4 mm lead width; use NSMD pads with 0.27 mm aperture for solder paste and ensure 0.2 mm solder mask sliver between pads. Route PGC/PGD (RB6/RB7) as a 4-wire In-Circuit Serial Programming (ICSP) header with at minimum VPP/MCLR, VDD, VSS, PGD, PGC exposed even on production boards to allow firmware updates. Place the ICSP header at the board edge for probe access.

Do not leave MCLR floating; tie to VDD through a 10 kohm pull-up or drive through a 100 nF capacitor for hard-reset applications. Failure to disable ICD/ICSP via the CONFIG3L register can lock the PGC/PGD pins. When using CTMU, configure the A/D channel as analog before enabling the constant-current source. The 32 KB Flash is split into a 32 KB boot-protected region; verify the boot-block configuration bits before locking the device.

Keep analog traces (AN0-AN15, CTMU inputs) short and away from switching digital lines such as PWM outputs and clock traces. Place a ground pour under the MCU and stitch with 4-8 vias around the package perimeter to reduce thermal resistance. For capacitive-touch PCB layout, follow the mTouch design guide: minimum 6 mm trace width, 2 mm spacing between adjacent sensors, and a hatched ground plane with 25% fill 0.5 mm below the sensor pad.

コンプライアンス情報

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Qualified
鉛フリー
Yes
ハロゲンフリー
Yes
紛争鉱物
Compliant

RoHS and REACH compliance per Microchip product page. Not AEC-Q100 qualified; for AEC-Q100 select the automotive-grade PIC18F65K22-E (extended temperature) only after consulting Microchip's automotive product catalog.

データ検証日: 2026-09-28 — データはXAIPARTの部品エンジニアリングチームによって検証・管理されています

関連検索

PIC18F65K22-I/PT PIC18F65K22 datasheet Microchip PIC18F65K22 PIC18F65K22 CTMU capacitive touch TQFP-64 PIC microcontroller PIC18F65K22 industrial automation PIC18F65K22 vs PIC18F66K22 PIC18F65K22 drop-in replacement PIC18F65K22-I/PT buy price what is CTMU in PIC18F65K22 PIC18F65K22 nanoWatt XLP battery PIC18F65K22 32KB flash TQFP-64 pinout

関連部品&用語

Microchip Technology PIC18F65K22 PIC18F65K22-I/PT PIC18F66K22 PIC18F67K22 PIC18F46K22 PIC18F65K22-E TQFP-64 TQFP-80 PIC18 RISC architecture CTMU nanoWatt XLP 12-bit ADC I2C SPI EUSART RoHS REACH TQFP package family surface mount capacitive touch sensor industrial automation
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