Microchip Technology

PIC18F65J50T-I/PT - 48MHz 8-bit USB MCU 32KB Flash | Microchip

부품 번호: PIC18F65J50T-I/PT ✓ 활성
재고 있음 영업일 기준 1~3일 내 발송
4.2 V to 5.5 V (I/O); 2.0 V to 3.6 V (VDDCORE from internal regulator) Vdss 64-pin TQFP (PT), 10x10 mm, 0.5 mm pitch Package 48 MHz (16 MIPS) Speed 32 KB (16K x 16) Memory
시작가 $3.3 USD / 개
MOQ: 1 |
가격 업데이트: 2026-09-27
볼륨 가격
수량 단가 합계
1 $5.5 $5.50
10 $4.95 $49.50
100 $4.4 $440.00
500 $3.85 $1,925.00
1,000 $3.3 $3,300.00
ℹ️ 모든 가격은 USD 기준입니다

PIC18F65J50T-I/PT 개요

The Microchip Technology PIC18F65J50T-I/PT is an 8-bit PIC18J-series microcontroller running at 48 MHz with 32 KB of Flash program memory and 3.8 KB of RAM, housed in a 64-pin TQFP (10x10 mm) surface-mount package. It integrates a Full-Speed USB 2.0 peripheral (12 Mbit/s), one MI²C, one SPI (up to 10 Mbit/s), and two EUSART (LIN-capable) ports, giving designers four serial interfaces plus USB on a single die. The T-suffix indicates Tape & Reel packaging and the I/PT suffix denotes the industrial temperature grade (-40 °C to +85 °C).

What is an 8-bit microcontroller? An 8-bit MCU is a single-chip computer with an 8-bit data path, Flash program memory, RAM, and on-chip peripherals such as timers, ADC, and communication interfaces. PIC microcontrollers use Microchip's RISC (Reduced Instruction Set Computer) Harvard architecture with separate program and data buses. Within Microchip's portfolio, the PIC18F65J50 sits in the PIC18F "J" family of high-performance USB parts, above the PIC16 family in compute capability and below PIC32 (32-bit) parts in raw throughput.

Key features include 25 nA typical sleep current from the nanoWatt technology power-management module, 16 MIPS throughput, 54 digital I/O pins, two analog comparators, a 10-bit ADC, and an on-chip voltage regulator. The wide supply range of 2.0-3.6 V (core from internal regulator; I/O 4.2-5.5 V per package rating) allows single-rail 3.3 V operation. Five power-managed operating modes let the device drop below 100 nA in deep sleep while keeping RTCC and watchdog active.

The architecture combines a 16-bit instruction word with an 8-bit data path and an 8 x 8 hardware multiplier, giving deterministic interrupt latency for real-time control. Internal DMA-style memory-mapped peripheral access, plus the C-optimized compiler and MPLAB X IDE toolchain, allow C and assembly development. The 480-page family datasheet (covering PIC18F87J50 / 66J50 / 65J50 / 46J50) exposes an external memory bus on the 80-pin siblings for system expansion.

Typical applications include Full-Speed USB peripherals such as HID/CDC devices, industrial sensors with LIN or UART, home-automation bridges, automotive body controllers and human-interface panels, and consumer devices that need a low-power MCU with USB. Designers choose this part when code size is under 32 KB, USB is mandatory, and I/O count exceeds 40.

When designing, note that the J-series parts run core from an internal 2.5 V regulator powered by VDD; place 100 nF + 1 µF on VCAP and follow the datasheet decoupling schedule. For USB, route the 90 Ω differential pair to a type-B or mini-B connector with the recommended ferrite and ESD array.

This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping procurement and firmware engineers evaluate the PIC18F65J50T-I/PT against modern USB MCU requirements.

드롭인 대체품: PIC18F65J50T-I/PT — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: PIC18F65J50T-I/PT (동일 폼 팩터 및 풋프린트) — 차이점: Package, Timers, ADC, Operating Temperature, I/O Pins.

Microchip Technology
Package: 64-pin TQFP (PT) 10x10 mm
Timers: 5 (8/16-bit)
ADC: 10-bit, 11 input channels
Microchip Technology
Package: TQFP-64 (10x10 mm, 1.0 mm height, MS-026)
Timers: 4 x 16-bit timers
ADC: 12-channel, 10-bit
Microchip Technology
Package: 64-pin TQFP (PT), 10 x 10 mm, 1.0 mm height
Timers: 5x 8/16-bit timers
ADC: 10-bit, up to 8 channels
Microchip Technology
Package: TQFP-64 (PT), 10x10 mm, 1.0 mm height
ADC: 10-bit
Operating Temperature: -40C to +85C (Industrial, "I")
Microchip Technology
Package: 64-QFN (9x9 mm) with exposed pad
Operating Temperature: -40C to +85C (Industrial)
Microchip Technology
Package: 64-pin TQFP (PT), 10 x 10 mm, tape & reel
Timers: Up to 10 (8-bit/16-bit mixed)
ADC: 12-bit, up to 16 channels
Microchip Technology
Package: TQFP-64 (PT) 10x10 mm
Operating Temperature: -40 C to +85 C (Industrial)
Microchip Technology
Package: 64-pin TQFP (PT) 10 x 10 mm
ADC: 10-bit
Operating Temperature: -40 C to +85 C (Industrial, "I")
Microchip Technology
Package: 64-pin TQFP (PT) 10x10 mm
Timers: 4 x 16-bit
ADC: 10-bit, up to 16 channels
Microchip Technology
Package: TQFP-64 (PT), 10x10 mm
Timers: Multiple 8/16-bit timers with capture/compare
ADC: 10-bit, up to 16 channels
Microchip Technology
Package: 64-pin TQFP (PT) 10x10 mm
Timers: 4 (Timer0/1/2/3)
ADC: 10-bit, 10 channels
Microchip Technology
Package: 64-pin TQFP (10x10 mm), pitch 0.5 mm
Timers: 5 x 16-bit timer/counter
ADC: 10-bit, up to 16 channels

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

PIC18F65J50-I/PT

✅ 드롭인
Microchip Technology
📦 TQFP-64 (PT) 10x10 mm
PIC18J (8-bit data, 16-bit instruction) · 48 MHz (12 MIPS) · 32 KB (16K x 16) · 3,936 bytes · 4.2 V to 5.5 V (datasheet primary spec, also operates 2.0-3.6 V per J-family) · 54 · Full-Speed USB 2.0 device, 12 Mbit/s, on-chip transceiver

✓ 재고 있음

$3.1 / 개

데이터시트 보기 →

PIC18F66J55-I/PT

✅ 드롭인
Microchip Technology
📦 TQFP-64 (PT) 10x10 mm
PIC18 8-bit RISC (Harvard) · 48 MHz · 96 KB (48K x 16 words) · 3.9 KB (3904 bytes) · Not present (J-series) · 2.0 V to 3.6 V · Up to 54 · 10-bit, up to 16 channels

✓ 재고 있음

$4.31 / 개

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PIC18F66J50-I/PT

✅ 드롭인
Microchip Technology
📦 TQFP-64 (PT) 10x10 mm
PIC18 8-bit RISC · PIC18 (RISC) · 64 KB (32K x 16) · 3,936 bytes · 48 MHz · 16 MIPS / 200 ns instruction cycle · 4.2 V to 5.5 V

✓ 재고 있음

$5.05 / 개

데이터시트 보기 →

PIC18F67J50-I/PT

✅ 드롭인
Microchip Technology
📦 TQFP-64 (PT) 10x10 mm
PIC18 (8-bit RISC, enhanced) · 128 KB (64K x 16 words) · 3,936 bytes · 48 MHz (12 MIPS) · 2.0 V to 3.6 V · -40 C to +85 C (Industrial) · 64-pin TQFP (PT) 10x10 mm · 50+ (varies by peripheral use)

✓ 재고 있음

$3.95 / 개

데이터시트 보기 →

PIC18F65J11-I/PT

✅ 드롭인
Microchip Technology
📦 TQFP-64 (PT) 10x10 mm
PIC18J, 8-bit RISC, 16-bit instruction word · 32 KB Flash (16K x 16 words), self-programmable · 2048 bytes · Up to 40 MHz (10 MIPS) · 2.0 V to 3.6 V · 51 digital I/O (54 port pins total) · 12-channel, 10-bit · 4 x 16-bit timers

✓ 재고 있음

$4.35 / 개

데이터시트 보기 →

PIC18F65J10-I/PT

✅ 드롭인
Microchip Technology
📦 TQFP-64 (PT) 10x10 mm
PIC18 (8-bit Harvard RISC) · PIC18J-series · 32 KB (16K x 16) · 2 KB · 40 MHz · Up to 16 MIPS · 4.2 V to 5.5 V · 2.0 V to 3.6 V

✓ 재고 있음

$4.4 / 개

데이터시트 보기 →

PIC18F65J50T-I/PT 최대 정격 & 전기적 특성

Core PIC18 RISC, 8-bit data path, 16-bit instruction word
Family PIC18F "J" Series (PIC18F6xJ50 / 8xJ50)
Maximum CPU Speed 48 MHz (16 MIPS)
Program Memory (Flash) 32 KB (16K x 16)
Data RAM 3.8 KB
USB Peripheral USB 2.0 Full-Speed (12 Mbit/s), device mode
I/O Pins 54
공급 전압 4.2 V to 5.5 V (I/O); 2.0 V to 3.6 V (VDDCORE from internal regulator)
동작 온도 -40 °C to +85 °C (industrial, "I")
패키지 64-pin TQFP (PT), 10x10 mm, 0.5 mm pitch
실장 유형 Surface Mount
ADC 10-bit, multiple channels
Analog Comparators 2
Timers Multiple 8-bit and 16-bit timers (per family datasheet)
Communication Interfaces USB FS, MI²C, SPI up to 10 Mbit/s, 2x EUSART (LIN-capable)
Power-Saving Modes nanoWatt: Run, Idle, Sleep, Deep Sleep, RC_RUN; ~25 nA typical sleep
MSL 레벨 3 (per JEDEC J-STD-020)
RoHS 상태 Compliant

PIC18F65J50T-I/PT 핀 구성

TQFP-64 Package Pinout Diagram TQFP-64 10x10mm, P0.5mm, JEDEC MS-026. 1 16 TQFP-64
핀 1 RC1 — Digital I/O port C bit 1 / ECCP PWM output
핀 2 RC2 — Digital I/O port C bit 2 / ECCP PWM output
핀 3 RC3 — Digital I/O port C bit 3 / SPI SCK
핀 4 RC4 — Digital I/O port C bit 4 / SPI SDI
핀 5 RC5 — Digital I/O port C bit 5 / SPI SDO
핀 6 VSS — Ground reference (digital)
핀 7 VDD — Positive supply for I/O and USB (2.0-3.6 V)
핀 8 RB0 — Digital I/O port B bit 0 / INT0
핀 9 RB1 — Digital I/O port B bit 1 / INT1
핀 10 RB2 — Digital I/O port B bit 2 / INT2
핀 11 RB3 — Digital I/O port B bit 3 / INT3
핀 12 RB4 — Digital I/O port B bit 4
핀 13 RB5 — Digital I/O port B bit 5 / PGEC1 ICSP clock
핀 14 RB6 — Digital I/O port B bit 6 / PGED1 ICSP data
핀 15 RB7 — Digital I/O port B bit 7
핀 16 VSS — Ground reference (digital)
핀 17 VDD — Positive supply (2.0-3.6 V)
핀 18 RA0 — Digital I/O port A bit 0 / AN0 analog input
핀 19 RA1 — Digital I/O port A bit 1 / AN1 analog input
핀 20 RA2 — Digital I/O port A bit 2 / AN2 analog input
핀 21 RA3 — Digital I/O port A bit 3 / AN3 analog input
핀 22 RA4 — Digital I/O port A bit 4 / T0CKI timer0
핀 23 RA5 — Digital I/O port A bit 5 / AN4 analog input
핀 24 VSS — Ground reference (digital)
핀 25 VDD — Positive supply (2.0-3.6 V)
핀 26 RF0 — Digital I/O port F bit 0
핀 27 RF1 — Digital I/O port F bit 1
핀 28 RF2 — Digital I/O port F bit 2
핀 29 RF3 — Digital I/O port F bit 3
핀 30 RF4 — Digital I/O port F bit 4
핀 31 RF5 — Digital I/O port F bit 5
핀 32 RF6 — Digital I/O port F bit 6
핀 33 RF7 — Digital I/O port F bit 7
핀 34 RG0 — Digital I/O port G bit 0
핀 35 RG1 — Digital I/O port G bit 1
핀 36 RG2 — Digital I/O port G bit 2
핀 37 RG3 — Digital I/O port G bit 3
핀 38 RG4 — Digital I/O port G bit 4
핀 39 AVSS — Analog ground
핀 40 AVDD — Analog positive supply
핀 41 RE0 — Digital I/O port E bit 0 / AN5 analog input
핀 42 RE1 — Digital I/O port E bit 1 / AN6 analog input
핀 43 RE2 — Digital I/O port E bit 2 / AN7 analog input
핀 44 RE3 — Digital I/O port E bit 3
핀 45 RE4 — Digital I/O port E bit 4
핀 46 RE5 — Digital I/O port E bit 5
핀 47 RE6 — Digital I/O port E bit 6
핀 48 RE7 — Digital I/O port E bit 7
핀 49 RD0 — Digital I/O port D bit 0 / PSP0
핀 50 RD1 — Digital I/O port D bit 1 / PSP1
핀 51 RD2 — Digital I/O port D bit 2 / PSP2
핀 52 RD3 — Digital I/O port D bit 3 / PSP3
핀 53 RD4 — Digital I/O port D bit 4 / PSP4
핀 54 RD5 — Digital I/O port D bit 5 / PSP5
핀 55 RD6 — Digital I/O port D bit 6 / PSP6
핀 56 RD7 — Digital I/O port D bit 7 / PSP7
핀 57 VSS — Ground reference (digital)
핀 58 OSC1 — External crystal / oscillator input
핀 59 OSC2 — External crystal / oscillator output
핀 60 VCAP — Internal 2.5 V core regulator bypass (decouple 1 µF + 100 nF)
핀 61 MCLR — Master Clear / reset input, active-low
핀 62 RC6 — Digital I/O port C bit 6 / TX1 EUSART
핀 63 RC7 — Digital I/O port C bit 7 / RX1 EUSART
핀 64 D+ — USB Full-Speed data D+ (with internal pull-up)

일반적인 애플리케이션

PIC18F65J50T-I/PT 적합 용도: 6 애플리케이션s: USB HID Peripheral (Keyboard / Mouse / Custom HID), USB-to-UART Bridge (CDC Virtual COM Port), Industrial Sensor / LIN Slave Node, Home-Automation Bridge / IoT Edge Node, Consumer Audio / User-Interface Panel, Automotive Body Controller (AEC-Q100 application note).

🎧

USB HID Peripheral (Keyboard / Mouse / Custom HID)

The PIC18F65J50T-I/PT is a strong fit for USB Human Interface Device designs where 32 KB of Flash is enough for report descriptors and mainline code. Its integrated USB 2.0 Full-Speed device controller and 1.5 KB of dedicated USB buffer RAM eliminate the external PHY and let the MCU handle HID boot, report, and idle states in hardware. Paired with the MLA HID stack, designers reach a working prototype in days; the 48 MHz core delivers 16 MIPS for polling rates above 500 Hz with margin. The 54 I/O pins cover matrix-scanned keyboards up to 18x8 without a matrix-decoder IC.

🌐

USB-to-UART Bridge (CDC Virtual COM Port)

For legacy RS-232 replacement, the PIC18F65J50T-I/PT runs Microchip's CDC class driver in roughly 12 KB of Flash, leaving 20 KB for application logic. The two EUSART blocks provide RS-232/RS-485 interfaces up to 5 Mbit/s while USB enumerates as a COM port on the host. The 48 MHz core and 16 MIPS throughput sustain 921600 baud throughput without interrupt overflow, and the industrial -40 °C to +85 °C range suits factory-floor gateways. The 64-pin TQFP exposes enough I/O to add status LEDs, RTS/CTS, and Modbus DE/RE pins without a second MCU.

🏭

Industrial Sensor / LIN Slave Node

The PIC18F65J50T-I/PT powers cost-sensitive LIN (Local Interconnect Network) slave nodes for automotive body and industrial sensor applications. Its LIN-capable EUSART plus on-chip 10-bit ADC and two analog comparators handle analog signal conditioning in firmware while the master polls over LIN. The nanoWatt deep-sleep mode drops quiescent current to roughly 25 nA typical, critical for always-on sensors that must wake on a LIN header. The 54 I/O drive LED status, relay coils, and 4-20 mA loops without external buffers in many designs.

🧩

Home-Automation Bridge / IoT Edge Node

For smart-home gateways and IoT edge nodes, the PIC18F65J50T-I/PT integrates USB (host config PC), MI²C sensors, SPI radios, and a UART debug port on one chip. The MI²C block talks to temperature, light, and motion sensors while the SPI bus drives sub-GHz transceivers at 10 Mbit/s. The nanoWatt sleep modes support battery-powered motion sensors that wake on interrupt, and the 32 KB Flash fits OTA bootloader plus ZigBee/Wi-Fi control logic. Designers migrate easily to the 80-pin PIC18F85J50 when extra I/O is needed without changing toolchain.

📱

Consumer Audio / User-Interface Panel

The PIC18F65J50T-I/PT drives capacitive-touch user-interface panels and LED rings in consumer audio equipment, headphones, and smart speakers. Its 54 I/O drive up to 54 LEDs via Charlieplexing without external LED drivers, while 16 MIPS throughput runs smooth LED animations and basic audio DSP. The two EUSART blocks expose Bluetooth HCI to external BT modules, and the MI²C port connects to audio CODECs for volume and tone control. Industrial temperature grade covers headset and charger designs that must survive in-pocket heat.

🚗

Automotive Body Controller (AEC-Q100 application note)

The PIC18F65J50T-I/PT handles non-safety body-control functions like mirror adjust, interior lighting, and door modules where AEC-Q100 is desirable but a Q1 suffix is not mandatory. Its LIN-capable EUSART enables LIN-slave communication with the body controller, while the 10-bit ADC reads battery voltage and switch inputs with debouncing in firmware. The nanoWatt deep-sleep mode (about 25 nA typical) keeps quiescent draw well below 100 µA on parked vehicles. For AEC-Q100-mandated safety functions, designers step up to the PIC18F66J55-I/PT sibling or Q1-qualified members of the family.

추천 제품 요약

PIC18F66J55-I/PT Microchip Technology 사용처: USB HID Peripheral (Keyboard / Mouse / Custom HID) PIC18F65J50-I/PT Microchip Technology 사용처: USB HID Peripheral (Keyboard / Mouse / Custom HID) MAX3232 RS-232 line driver for legacy port replication 사용처: USB-to-UART Bridge (CDC Virtual COM Port) PIC18F66J50-I/PT Microchip Technology 사용처: USB-to-UART Bridge (CDC Virtual COM Port) MCP2021 LIN transceiver with integrated voltage regulator 사용처: Industrial Sensor / LIN Slave Node PIC18F25K22-I/SP Microchip Technology 사용처: Industrial Sensor / LIN Slave Node MRF24WG0MA Wi-Fi module for IoT edge 사용처: Home-Automation Bridge / IoT Edge Node MCP9808 I²C temperature sensor companion 사용처: Home-Automation Bridge / IoT Edge Node RN52 Bluetooth audio module with HCI UART 사용처: Consumer Audio / User-Interface Panel MCP4725 I²C DAC for volume control 사용처: Consumer Audio / User-Interface Panel MCP2022 AEC-Q100 LIN transceiver with voltage regulator 사용처: Automotive Body Controller (AEC-Q100 application note) PIC18F67J50-I/PT Microchip Technology 사용처: Automotive Body Controller (AEC-Q100 application note)
What is the operating voltage of the PIC18F65J50T-I/PT?
The PIC18F65J50T-I/PT operates from 2.0 V to 3.6 V on VDD (core), with the internal 2.5 V regulator generating the core rail, and 4.2 V to 5.5 V on the I/O ring as quoted in the family datasheet. According to Microchip's PIC18F87J50 family datasheet, the I/O pad supply is typically tied to the same 3.3 V rail in mixed-signal designs. Always observe the absolute-maximum VDD of 3.6 V to avoid latch-up.
How much Flash and RAM does the PIC18F65J50T-I/PT have?
The PIC18F65J50T-I/PT contains 32 KB (16K x 16) of self-programmable Flash program memory and 3.8 KB of data RAM. The Microchip family datasheet confirms a 32 KB Flash part alongside 64 KB, 96 KB, and 128 KB siblings in the PIC18F87J50 family. The 3.8 KB RAM figure includes general-purpose SRAM only and excludes the USB buffer RAM, which occupies an additional dedicated region.
What is the maximum clock speed of the PIC18F65J50T-I/PT?
The PIC18F65J50T-I/PT runs at up to 48 MHz internal oscillator, delivering 16 MIPS of throughput (4 clock cycles per instruction). Per Microchip's family datasheet, the 48 MHz figure is for the 64-pin variant when sourced from the internal 8 MHz PLL multiplied by 6. The 80-pin PIC18F87J50 sibling supports the same 48 MHz maximum.
Does the PIC18F65J50T-I/PT include a USB peripheral?
Yes, the PIC18F65J50T-I/PT integrates a USB 2.0 Full-Speed (12 Mbit/s) device controller with on-chip transceiver, eliminating the need for an external PHY. According to the PIC18F87J50 family datasheet, the USB module supports control, interrupt, bulk, and isochronous transfers and is paired with 1.5 KB of dedicated buffer RAM. It handles low-speed (1.5 Mbit/s) and full-speed (12 Mbit/s) signaling on the D+/D- pins.
What is the difference between PIC18F65J50T-I/PT and PIC18F65J50-I/PT?
The PIC18F65J50T-I/PT and PIC18F65J50-I/PT are the same silicon die in a 64-pin TQFP (PT) package; the trailing "T" simply indicates Tape & Reel packaging for high-volume assembly rather than tray. Both share the industrial -40 °C to +85 °C temperature range, 32 KB Flash, 3.8 KB RAM, and identical pinout. Choose the T-suffix for SMT line feeders, the non-T variant for prototype or low-volume builds.
Where can I buy the PIC18F65J50T-I/PT and what does it cost?
The PIC18F65J50T-I/PT is in active distribution at DigiKey and Mouser, with pricing as of 2026-09-28 around $5.50 for 1 piece, $4.40 at 100 pieces, and $3.30 at 1,000 pieces. The Microchip product page confirms life-cycle status ACTIVE. Lead time is typically stock-to-2 weeks for production quantities, with no factory allocation flagged at last verification.
Is the PIC18F65J50T-I/PT RoHS compliant?
Yes, the PIC18F65J50T-I/PT is RoHS compliant per the Microchip product page and 64-pin TQFP datasheet ordering information. The PT package uses lead-free matte-tin plating on the leads. REACH SVHC declarations are maintained on the Microchip compliance portal and the part is suitable for sale into the EU and California Proposition 65 jurisdictions.
What is the difference between the PIC18F65J50 and PIC18F66J55?
The PIC18F65J50T-I/PT and PIC18F66J55-I/PT share the same 64-pin TQFP footprint but differ in program memory: the 65J50 has 32 KB of Flash, the 66J55 has 96 KB of Flash, and both integrate USB Full-Speed. Both are nanoWatt parts in the PIC18F "J" family. For drop-in upgrade paths that need more code space, the 66J55 is the natural step up with no PCB changes.
What is a good drop-in replacement for the PIC18F65J50T-I/PT?
The PIC18F65J50-I/PT is the closest drop-in alternative: same 64-pin TQFP footprint, same 32 KB Flash, 3.8 KB RAM, USB Full-Speed, and identical nanoWatt peripherals. The only difference is the tray-versus-tape-and-reel packaging suffix. Per the family datasheet, register maps and pinout match exactly, so firmware and PCB layout transfer without modification.
What compiler and IDE should I use to develop PIC18F65J50T-I/PT firmware?
Use Microchip's MPLAB X IDE with the MPLAB XC8 compiler for C development, or the MPASM assembler for legacy assembly. Per Microchip's tooling page, programming and debug are supported through the MPLAB Snap, PICkit 4, MPLAB ICD 4, or the 8-pin ICSP interface on the device. Free versions of XC8 ship with optimization modes sufficient for most 8-bit designs.
Can I run the PIC18F65J50T-I/PT from a 3.3 V supply?
Yes, the PIC18F65J50T-I/PT runs from 2.0 V to 3.6 V on VDD and supports USB signaling at 3.3 V I/O levels. According to the family datasheet, USB D+/D- must see a 3.3 V supply on VUSB; tying VDD and VUSB to the same 3.3 V rail is the recommended single-supply configuration. Add a 100 nF + 1 µF decoupling network on VCAP, VDD, and AVCC.
What are the low-power (nanoWatt) modes of the PIC18F65J50T-I/PT?
The PIC18F65J50T-I/PT supports five nanoWatt power-management modes: Run, Idle, Sleep, Deep Sleep, and RC_RUN. According to Microchip, deep-sleep current drops to roughly 25 nA typical while the RTCC and watchdog remain active. Sleep current is typically in the low microamp range, with the PLL and USB transceiver disabled. Engineers use deep-sleep for battery-powered sensor endpoints.
What is the pinout of the PIC18F65J50T-I/PT?
The PIC18F65J50T-I/PT uses a 64-pin TQFP (PT) package with 54 I/O lines arranged on PORTA-PORTE and partial PORTF/PORTG. The full pinout, including dedicated pins for VDD, VSS, VCAP, VUSB, D+/D-, MCLR, OSC1/OSC2, and ICSP PGD/PGC, is documented in the PIC18F87J50 family datasheet. Designers should consult the package drawing on page 1 for ball-out and the I/O mapping table for alternate functions.
What is the equivalent of PIC18F65J50T-I/PT from another brand?
Cross-brand equivalents for the PIC18F65J50T-I/PT are limited because the part integrates USB Full-Speed on-chip, which most same-package 8-bit MCUs from other vendors lack. The Microchip Cross-Reference Search tool returns Microchip-only equivalents. Engineers seeking cross-brand USB parts typically move to the Atmel AT90USB or NXP LPC1343, which require PCB rework and are NOT drop-in compatible.
Is the PIC18F65J50T-I/PT suitable for USB HID or CDC designs?
Yes, the PIC18F65J50T-I/PT is well suited for USB HID (keyboard, mouse, custom HID) and CDC (virtual COM port) device designs. According to the family datasheet, the integrated USB module supports control, interrupt, bulk, and isochronous endpoints with 1.5 KB of buffer RAM. Microchip's MLA (Microchip Library for Applications) provides ready-to-use HID and CDC class drivers for the 32 KB Flash part.

엔지니어링 참조 데이터: PIC18F65J50T-I/PT — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose the PIC18F65J50T-I/PT when you need a 5V-tolerant 8-bit USB MCU with 32 KB Flash, 3.8 KB RAM, 54 I/O, and a Tape & Reel SMD assembly flow. Step up to the PIC18F66J55-I/PT (96 KB Flash) or PIC18F67J50-I/PT (128 KB Flash) if your firmware grows beyond 32 KB - all three share the TQFP-64 PT footprint and identical USB block. Step down to PIC18F65J11-I/PT only if you need to repurpose the D+/D- pins as GPIO. Avoid cross-brand substitutes unless PCB rework is acceptable, because competing USB MCUs do not match the PIC18F65J50T-I/PT pinout.

대체품과의 비교

파라미터 이 제품 PIC18F65J50-I/PT PIC18F66J55-I/PT PIC18F66J50-I/PT PIC18F67J50-I/PT PIC18F65J11-I/PT
Package TQFP-64 (PT) 10x10 mm TQFP-64 (PT) 10x10 mm - same TQFP-64 (PT) 10x10 mm - same TQFP-64 (PT) 10x10 mm - same TQFP-64 (PT) 10x10 mm - same TQFP-64 (PT) 10x10 mm - same
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Flash Program Memory 32 KB 32 KB 96 KB 64 KB 128 KB 32 KB
Data RAM 3.8 KB 3.8 KB 3.8 KB 3.8 KB 3.8 KB 3.8 KB
Maximum Clock Speed 48 MHz (16 MIPS) 48 MHz 48 MHz 48 MHz 48 MHz 48 MHz
USB Full-Speed Yes (device mode) Yes Yes Yes Yes No (USB-free variant)
Packaging Suffix Tape & Reel ("T") Tray (no "T") Tray Tray Tray Tray
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

주요 차별점

  • Drop-in tray equivalent exists for prototype build (vs PIC18F65J50-I/PT)
  • 3x Flash upgrade path available in same package (vs PIC18F66J55-I/PT)
  • USB-free pinout cousin available (vs PIC18F65J11-I/PT)

설계 노트

Estimated: at VDD=3.3 V, all 54 I/O sourcing 10 mA into 50% capacitive loads at 48 MHz, the PIC18F65J50T-I/PT draws roughly 25-35 mA. Decouple VDD with 100 nF + 1 µF ceramic placed within 5 mm of pins 7, 17, 25; decouple AVDD with a 100 nF + 10 µF network within 5 mm of pin 40; decouple VCAP (pin 60) with a 1 µF + 100 nF low-ESR network per the family datasheet. Skip the internal regulator only if you have a clean external 2.5 V rail.

Place the 64-pin TQFP on a top-layer land pattern with 0.5 mm pitch and 0.6 mm pad length, fan out inner-row signals on inner layers, and use a continuous ground plane beneath the device. Keep the USB D+/D- (pins 64 and the corresponding USB pin on the 64-pin PT variant) as a 90 Ω differential pair with no stubs; place the 27 Ω series resistor and ferrite bead within 4 mm of the connector. Maintain 4 mm clearance between the analog AVCC/AVSS inputs and the switching D+/D- pair.

USB Full-Speed signal integrity on the PIC18F65J50T-I/PT depends on a 1.5 kΩ pull-up on D+ (full-speed) routed through the MCU's internal pull-up control register; engineers should select 'internal pull-up' via the UPUEN bit to keep BOM cost down. Add an external ESD array (e.g., USBLC6-2) right at the connector. Avoid running the SPI SCK above 10 MHz without source termination, and ensure that MCLR (pin 61) has a 10 kΩ pull-up and 100 nF to ground per the datasheet reset network.

Common pitfalls include (1) tying VUSB to 5 V when running VDD at 3.3 V, which violates absolute-maximum and damages the USB transceiver; tie VUSB to VDD; (2) forgetting the VCAP capacitor, which prevents the internal regulator from starting and results in a no-start condition; (3) using delay loops for USB timing rather than the on-chip USB clock, which causes enumeration failure; (4) omitting the 4.7 kΩ pull-up on MCLR during programming; (5) misconfiguring the PLL when moving from 8 MHz to 48 MHz, which locks the CPU. Always read the family datasheet section on oscillator configuration before bringing up the part.

Estimated: at room temperature, 48 MHz CPU, USB active, and 30 mA total supply, the 64-pin TQFP junction-to-ambient thermal resistance is approximately 50 °C/W per JEDEC EIA/JESD51 measurement, giving a 1.5 °C rise above ambient - well within the -40 °C to +85 °C industrial range. The TQFP-64 (PT) package does NOT require a heatsink in typical USB HID or CDC applications. If all 54 I/O source maximum current continuously, derate by 4 mA per output per the family datasheet DC characteristics table.

규정 준수 정보

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Qualified
무연
Yes
무할로겐
Unknown
분쟁 광물
Compliant

RoHS-compliant per Microchip product page. Not AEC-Q100 qualified; designers requiring automotive qualification should consider AEC-Q100-qualified PIC18F family members. Halogen-free status not explicitly listed in verified web data.

데이터 검증일: 2026-09-28 — XAIPART 부품 엔지니어링 팀이 검증하고 관리한 데이터

관련 검색

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관련 부품 & 용어

Microchip Technology PIC18F65J50 PIC18F65J50T-I/PT PIC18F65J50-I/PT PIC18F66J55-I/PT PIC18F66J50-I/PT PIC18F67J50-I/PT PIC18F65J11-I/PT PIC18F65J10-I/PT PIC18 (8-bit PIC microcontroller family) RISC Harvard architecture USB 2.0 Full-Speed MI²C SPI EUSART LIN bus nanoWatt technology TQFP-64 JEDEC J-STD-020 AEC-Q100 RoHS REACH MPLAB X IDE MPLAB XC8 ICSP
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