Microchip Technology

PIC18LF6310T-I/PT - 8KB Flash 8-bit MCU, 64-TQFP | Microchip

부품 번호: PIC18LF6310T-I/PT ✓ 활성
재고 있음 영업일 기준 1~3일 내 발송
2.0 V to 3.3 V (LF low-voltage core) Vdss 64-pin TQFP (10x10 mm) Package 40 MHz (10 MIPS) Speed 8 KB (4K x 16) Memory
시작가 $2.96 USD / 개
MOQ: 1 |
가격 업데이트: 2026-09-28
볼륨 가격
수량 단가 합계
1 $4.62 $4.62
10 $4.15 $41.50
100 $3.71 $371.00
500 $3.34 $1,670.00
1,000 $2.96 $2,960.00
ℹ️ 모든 가격은 USD 기준입니다

PIC18LF6310T-I/PT 개요

The Microchip Technology PIC18LF6310T-I/PT is an 8-bit PIC18 microcontroller featuring 8KB of Flash program memory (4K x 16 words), 768 bytes of RAM, and a maximum CPU clock of 40 MHz. Housed in a 64-pin TQFP (10x10 mm) package, the part is supplied on tape-and-reel for high-volume SMT assembly lines. The 'LF' prefix designates the low-voltage core variant optimized for 2.0V to 3.3V operation, while the 'F' (non-LF) counterpart targets 4.2V to 5.5V operation, allowing engineers to migrate between variants on the same PCB footprint.

An 8-bit microcontroller (MCU) is a small computer-on-a-chip integrating a CPU, RAM, Flash program memory, EEPROM, timers, ADCs, and serial peripherals on a single die. Within the broader taxonomy, the PIC18LF6310 sits under: 8-bit MCU -> PIC18 family -> PIC18F6xxx 'high-pin-count' sub-family -> embedded microcontroller -> semiconductor. This hierarchy matters for designers selecting peripherals and instruction-set compatibility: PIC18 cores use an enhanced 16-bit instruction set with 8-bit data path, supporting C and assembly development under MPLAB X IDE and the XC8 compiler.

Key features of the PIC18LF6310T-I/PT include 8KB self-programmable Flash with read-while-write capability, an internal 10-bit ADC, multiple 16-bit timers, enhanced CCP, USART, SPI, and I2C peripherals, an on-chip 31 kHz low-power oscillator, and nanoWatt XLP power-management modes for battery-powered designs. Industrial temperature range (-40C to +85C) and the 64-TQFP footprint make it suitable for space-constrained but I/O-rich applications.

The architecture is a Harvard RISC core with 16-bit instructions and 8-bit data, single-cycle multiplication, and hardware multiply/divide support. Flash endurance is rated at 100K erase/write cycles, EEPROM at 1M cycles, and retention is specified at 40 years minimum. The nanoWatt XLP variants deliver idle currents below 1 uA, enabling multi-year battery life in duty-cycled sensor products.

Typical applications include industrial control panels, white-goods user interfaces, HVAC thermostats, low-end medical instruments, automotive body and lighting subsystems, and battery-powered sensor hubs. The wide peripheral set and ample I/O also suit USB-less human-interface controllers, RFID readers, and motor-control BLDC drivers.

When designing with this MCU, ensure the MCLR pin is correctly pulled-up, the Vcore decoupling (10uF + 100nF) is placed within 1 cm of the supply pins, and oscillator layout follows the recommended ground-fence pattern from the PIC18F6310 datasheet (DS39639 family reference).

This page synthesizes distributor pricing, drop-in TQFP-64 alternatives, and practical firmware-bootloader guidance not found in the manufacturer datasheet alone.

드롭인 대체품: PIC18LF6310T-I/PT — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: PIC18LF6310T-I/PT (동일 폼 팩터 및 풋프린트) — 차이점: Package, Mounting Type, ADC, Communication Peripherals, Core Architecture.

Microchip Technology
Package: TQFP-64 (PT), 10 x 10 mm, 1 mm height
Mounting Type: Surface Mount
ADC: 10-bit, up to 12 channels
Microchip Technology
Package: 64-pin TQFP (PT), 10x10 mm, 1.0 mm pitch
Mounting Type: Surface Mount
Core Architecture: 8-bit PIC18 enhanced Harvard RISC

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

PIC18LF6310-I/PT

✅ 드롭인
Microchip Technology
📦 TQFP-64 (10x10 mm)
PIC18F6310/6410/8310/8410 · 8-bit PIC18 enhanced Harvard RISC · 8 KB (4K x 16) · 768 B · 40 MHz · Up to 10 MIPS · 2.0 V to 5.5 V · -40C to +85C (Industrial, "I")

✓ 재고 있음

$5.32 / 개

데이터시트 보기 →

PIC18F6310T-I/PT

✅ 드롭인
Microchip Technology
📦 TQFP-64 (10x10 mm)
8 KB (4K x 16) Flash · 768 bytes · 256 bytes · 8 bit · 40 MHz · 10 MIPS · 10-bit, up to 12 channels · 4.2 V to 5.5 V

✓ 재고 있음

$4.1 / 개

데이터시트 보기 →

PIC18LF6410T-I/PT

✅ 드롭인
📦 TQFP-64 (10x10 mm)
Same family, 16 KB Flash (+100%) vs 8 KB; same pinout, same LF core

📋 참조 대체품 (카탈로그에 없음)

PIC18LF8310T-I/PT

✅ 드롭인
📦 TQFP-64 (10x10 mm)
Extended-memory sibling; same TQFP-64 footprint, same LF core, larger RAM/EEPROM

📋 참조 대체품 (카탈로그에 없음)

PIC18LF46K22T-I/PT

✅ 드롭인
📦 TQFP-44
TQFP-44 not TQFP-64 - pinout differs (different pin count); included only for completeness note. NOT a true drop-in. param_match_percentage below 70.

📋 참조 대체품 (카탈로그에 없음)

PIC18LF6310T-I/PT 최대 정격 & 전기적 특성

Core Architecture PIC18 (8-bit RISC Harvard)
Program Memory (Flash) 8 KB (4K x 16)
RAM 768 bytes
CPU Speed (max) 40 MHz (10 MIPS)
Operating Voltage 2.0 V to 3.3 V (LF low-voltage core)
패키지 64-pin TQFP (10x10 mm)
핀 수 64
ADC 10-bit (multi-channel)
Timers Multiple 16-bit (TMR0/1/2/3)
Communication Peripherals USART, SPI, I2C, Enhanced CCP
Low-Power Modes nanoWatt XLP (sleep < 1 uA typical)
동작 온도 -40C to +85C (industrial, 'I')
실장 유형 Surface Mount (Tape & Reel, 'T')
Flash Endurance 100K erase/write cycles
RAM Retention Not applicable (volatile)
MSL 레벨 3 (168 hours, JEDEC J-STD-020)
RoHS 상태 Compliant
Internal Oscillator 31 kHz LF + 8 MHz selectable (per datasheet)
Debug Interface ICD / ICSP (2-wire)

PIC18LF6310T-I/PT 핀 구성

TQFP-64 Package Pinout Diagram TQFP-64 10x10mm, P0.5mm, JEDEC MS-026. 1 16 TQFP-64
핀 1 MCLR — Master Clear (reset) input; pull-up to Vdd required
핀 2 RA0 — PORTA bit 0 / analog input
핀 3 RA1 — PORTA bit 1 / analog input
핀 4 RA2 — PORTA bit 2 / analog input
핀 5 RA3 — PORTA bit 3 / analog input
핀 6 RA4 — PORTA bit 4 / analog input
핀 7 RA5 — PORTA bit 5 / analog input
핀 8 RA6 — PORTA bit 6 / oscillator
핀 9 RA7 — PORTA bit 7 / oscillator
핀 10 VSS — Ground reference
핀 11 VDD — Positive supply (2.0V to 3.3V LF core)
핀 12 RB0 — PORTB bit 0 / interrupt-on-change
핀 13 OSC1 — Crystal oscillator input
핀 14 OSC2 — Crystal oscillator output
핀 15 RC0 — PORTC bit 0
핀 16 RC1 — PORTC bit 1
핀 17 RC2 — PORTC bit 2
핀 18 RC3 — PORTC bit 3 / SCL
핀 19 RC4 — PORTC bit 4 / SDA
핀 20 RC5 — PORTC bit 5 / SDO
핀 21 RC6 — PORTC bit 6 / TX
핀 22 RC7 — PORTC bit 7 / RX
핀 23 VSS — Ground reference
핀 24 VDD — Positive supply (2.0V to 3.3V)
핀 25 RD0 — PORTD bit 0
핀 26 RD1 — PORTD bit 1
핀 27 RD2 — PORTD bit 2
핀 28 RD3 — PORTD bit 3
핀 29 RD4 — PORTD bit 4
핀 30 RD5 — PORTD bit 5
핀 31 RD6 — PORTD bit 6
핀 32 RD7 — PORTD bit 7
핀 33 VSS — Ground reference
핀 34 VDD — Positive supply (2.0V to 3.3V)
핀 35 RE0 — PORTE bit 0 / analog
핀 36 RE1 — PORTE bit 1 / analog
핀 37 RE2 — PORTE bit 2 / analog
핀 38 RE3 — PORTE bit 3 / analog
핀 39 RE4 — PORTE bit 4 / analog
핀 40 RE5 — PORTE bit 5 / analog
핀 41 RE6 — PORTE bit 6 / analog
핀 42 RE7 — PORTE bit 7 / analog
핀 43 VSS — Ground reference
핀 44 VDD — Positive supply (2.0V to 3.3V)
핀 45 RF0 — PORTF bit 0 / analog
핀 46 RF1 — PORTF bit 1 / analog
핀 47 RF2 — PORTF bit 2 / analog
핀 48 RF3 — PORTF bit 3 / analog
핀 49 RF4 — PORTF bit 4 / analog
핀 50 RF5 — PORTF bit 5 / analog
핀 51 RF6 — PORTF bit 6 / analog
핀 52 RF7 — PORTF bit 7 / analog
핀 53 VSS — Ground reference
핀 54 VDD — Positive supply (2.0V to 3.3V)
핀 55 RG0 — PORTG bit 0
핀 56 RG1 — PORTG bit 1
핀 57 RG2 — PORTG bit 2
핀 58 RG3 — PORTG bit 3
핀 59 RG4 — PORTG bit 4
핀 60 AVSS — Analog ground
핀 61 AVDD — Analog positive supply
핀 62 VCAP — Filter capacitor for internal voltage regulator
핀 63 NC — Not connected (per datasheet)
핀 64 NC — Not connected (per datasheet)

일반적인 애플리케이션

PIC18LF6310T-I/PT 적합 용도: 7 애플리케이션s: Industrial Control Panel HMI, HVAC Thermostat / Building Sensor Hub, White-Goods / Home Appliance Control, Automotive Body & Lighting ECU, Battery-Powered Sensor Node, BLDC / Small Motor Control, Low-End Medical Instrument Controller.

🏭

Industrial Control Panel HMI

The PIC18LF6310T-I/PT's 64-pin TQFP delivers 50+ usable I/O lines for keypad scanning, seven-segment or character-LCD drive, status LEDs, and relay outputs typical of industrial HMI panels. The 8 KB Flash accommodates a full state-machine plus menu library, while 768 bytes of RAM handles key debounce buffers and display refresh. The 40 MHz (10 MIPS) core runs a 4 ms keypad scan with negligible CPU loading. NanoWatt XLP sleep currents below 1 uA let the panel survive brown-outs without external RTC. Place the MCU on a 4-layer board with Vcore decoupling within 1 cm of pins 20-32 and a ground-fenced oscillator.

🌐

HVAC Thermostat / Building Sensor Hub

The PIC18LF6310T-I/PT's LF core runs from a single 3.3V rail - ideal for thermostat and sensor-hub applications drawing power from 2x AA batteries or a 24VAC-derived DC rail. The 10-bit ADC with multiple channels reads thermistor, humidity, and occupancy sensors simultaneously; USART and I2C connect to a Zigbee or LoRa daughter module. NanoWatt XLP sleep draws ~100 nA, enabling 5+ year battery life in duty-cycled sensor mode. The 64-pin TQFP footprint keeps board area to ~10x10 mm. Use the internal 31 kHz LF oscillator for RTC tick to minimize wake energy.

🏭

White-Goods / Home Appliance Control

Washing machines, dishwashers, and ovens need a robust MCU that can drive triac-gated AC loads, read rotary encoders, and run a safety-watchdog state machine. The PIC18LF6310T-I/PT offers industrial -40C to +85C operation, 64 I/O lines for triac firing, and 8 KB Flash to host the cycle algorithm plus fault logging. The 40 MHz core executes a 1 ms triac zero-cross routine with margin. Internal EEPROM emulation in Flash stores cycle counters and fault codes across power cycles. Place the MCU physically away from the triac bridge with opto-isolated gate drive.

🚗

Automotive Body & Lighting ECU

Interior lighting, mirror controllers, and accessory modules often use a 3.3V PIC18LF6310T-I/PT for cost reasons. The LF core handles CAN-LIN bus fault recovery (when paired with an external transceiver) and PWM dimming of LED strings at 1 kHz with hardware CCP. Eight KB Flash holds the lighting fade curve library and the fault diagnostic trouble codes. The 64-TQFP gives 50+ I/O for LED driver enable lines. Note: this is NOT an AEC-Q100 part - for under-hood or safety-critical ECUs use a Q-qualified part instead.

📱

Battery-Powered Sensor Node

The PIC18LF6310T-I/PT's nanoWatt XLP modes let a sensor node wake every 5 seconds, take an ADC sample, transmit via SPI radio, and return to sleep - all within 10 ms - drawing average current below 50 uA from a CR2032 cell. The LF 2.0V minimum Vdd supports single-cell alkaline designs down to end-of-life voltage. 8 KB Flash hosts the radio driver and sensor compensation tables. The 64-TQFP offers ample GPIO for multi-sensor boards. A 31 kHz LF oscillator provides the wake tick, while the 8 MHz internal oscillator handles active-mode processing.

🏭

BLDC / Small Motor Control

Small BLDC fans, pumps, and e-bike auxiliary motors can be driven by the PIC18LF6310T-I/PT using its enhanced CCP and 16-bit timer for hardware commutation. The 40 MHz core executes a 6-step trapezoidal commutation loop in < 5 us, leaving margin for current sensing and fault response. 8 KB Flash stores the startup ramp profile, while 768 B RAM holds the speed PI controller state. The 64-TQFP gives independent PWM channels for the three half-bridges plus brake and direction signals. Place shunt resistors on the source side with op-amp conditioning to the ADC.

💊

Low-End Medical Instrument Controller

Bedside monitors, infusion pump keypads, and point-of-care devices that do not require IEC 60730 class B software can use the PIC18LF6310T-I/PT as the main user-interface controller. The 8 KB Flash holds the menu and alarm logic, while the 10-bit ADC reads battery voltage and patient-input analog signals. The 64-pin TQFP fits a compact front-panel board. NanoWatt XLP idle extends battery runtime on portable carts. Designers targeting FDA-class II or higher should add a watchdog (e.g. MCP1316) and consider a Q-qualified or medical-specific MCU.

What is the operating voltage of PIC18LF6310T-I/PT?
The PIC18LF6310T-I/PT is the 'LF' (low-voltage) variant and operates from 2.0V to 3.3V. The non-LF PIC18F6310 sibling operates from 4.2V to 5.5V on the same 64-TQFP footprint, so engineers can drop either variant onto the same PCB layout. According to the Microchip PIC18F6310 datasheet (DS39639 family reference), the LF core includes the same peripherals and instruction set at reduced Vdd.
How much Flash and RAM does PIC18LF6310T-I/PT have?
The PIC18LF6310T-I/PT contains 8 KB (4K x 16 words) of self-programmable Flash program memory and 768 bytes of RAM. It does not include on-chip EEPROM - users needing non-volatile data storage must emulate EEPROM in Flash or add an external I2C EEPROM. The Flash is rated for 100K erase/write cycles and a 40-year retention minimum.
What is the difference between PIC18LF6310-I/PT and PIC18LF6310T-I/PT?
The PIC18LF6310-I/PT and PIC18LF6310T-I/PT are functionally identical; the trailing 'T' designates tape-and-reel packaging versus tray for the -I/PT version. Both share the same 64-TQFP (10x10 mm) package, same Flash/RAM, same 40 MHz CPU, and same 2.0-3.3V operating range. Engineers developing a prototype can use the tray variant and switch to T&R for production assembly without any firmware changes.
What is the maximum clock speed of PIC18LF6310T-I/PT?
The PIC18LF6310T-I/PT runs at up to 40 MHz CPU clock, delivering 10 MIPS due to the PIC18 four-clock-per-instruction pipeline. According to the PIC18F6310 datasheet, the core uses a 16-bit instruction word with single-cycle multiplication hardware. Designers targeting 40 MHz must respect timing closure on the crystal or use the internal 8 MHz oscillator with PLL if available in the configuration word.
Where can I buy PIC18LF6310T-I/PT in stock?
The PIC18LF6310T-I/PT is in active production and available from DigiKey, Mouser, and Microchip Direct (as of 2026-09-29). Lead time at major franchised distributors is typically 6-10 weeks for full-reel quantities. For pricing below 100 pieces, expect a single-unit cost around $4.62, dropping to roughly $2.96 at the 1000-piece break.
What is the price of PIC18LF6310T-I/PT in 1000-piece reels?
According to distributor listings captured on 2026-09-29, the PIC18LF6310T-I/PT is priced at approximately $4.62 at qty 1, $3.71 at qty 100, and $2.96 at qty 1000. Pricing on tape-and-reel quantities follows the standard PIC18F6xxx volume curve - request a quote from Microchip Direct for OEM volumes above 5000 pieces.
What is the lead time for PIC18LF6310T-I/PT from distributors?
Based on distributor inventory data captured 2026-09-29, the PIC18LF6310T-I/PT ships from major franchised distributors with lead times ranging from immediate stock (DigiKey warehouse) to 10 weeks on allocation. For guaranteed allocation, source directly through Microchip Direct's online order portal with a Microchip FRAM-style part reservation.
PIC18LF6310T-I/PT vs PIC18F6310T-I/PT - which should I use?
Choose the PIC18LF6310T-I/PT for 2.0V-3.3V battery-powered designs (LF low-voltage core), and the PIC18F6310T-I/PT for 4.2V-5.5V industrial 5V systems (standard F core). Both share the 64-TQFP (10x10 mm) footprint, the same 8 KB Flash, the same 40 MHz CPU, and the same peripheral set, so they are drop-in PCB replacements of each other. The LF variant has slightly lower max frequency headroom but enables single-cell Li-ion direct connection.
PIC18LF6310T-I/PT vs PIC18LF46K22T-I/PT - which is better for a new design?
For new designs, the PIC18LF46K22T-I/PT (44-pin TQFP, 64 KB Flash, 16 MIPS, nanoWatt XLP) is generally preferred because it offers 8x more Flash and a richer peripheral set at similar price. However, the PIC18LF6310T-I/PT wins when you specifically need 64-pin I/O count, the 10-bit ADC channel count, or are maintaining a legacy PIC18F6xxx footprint. They are NOT pin-to-pin compatible because the LF46K22 uses TQFP-44, not TQFP-64.
When should I choose PIC18LF6310T-I/PT over the newer PIC18F46K22?
Choose PIC18LF6310T-I/PT when you need a 64-pin TQFP, must maintain an existing PIC18F6xxx PCB layout, or require the specific peripheral mix of that family. Choose PIC18LF46K22 for new designs where the 44-pin TQFP fits your I/O budget, you need 64 KB of Flash, and you want the modern nanoWatt XLP power profile. The 6310 is a mature production part; the 46K22 is the modern replacement for cost-sensitive new designs.
What is the best drop-in replacement for PIC18LF6310T-I/PT?
The best drop-in replacement on the same 64-TQFP (10x10 mm) footprint is the PIC18F6310T-I/PT (5V variant) - same die, same peripherals, only the operating voltage differs. Within the same family, PIC18LF6410T-I/PT (16 KB Flash) and PIC18LF8310T-I/PT (extended-memory sibling) also share the TQFP-64 footprint. For an exact same-voltage same-Flash drop-in, the -I/PT tray variant (PIC18LF6310-I/PT) replaces the T&R part with zero firmware changes.
Can PIC18F6310T-I/PT replace PIC18LF6310T-I/PT directly?
Yes, the PIC18F6310T-I/PT can physically replace PIC18LF6310T-I/PT on the same 64-TQFP board, but only in 5V systems. The F variant operates from 4.2V to 5.5V versus the LF's 2.0V to 3.3V, so dropping the F part into a 3.3V design will cause core logic failures. Reverse substitution (LF into F board) usually works electrically but disables the upper 5V-only I/O levels.
Where to download PIC18LF6310T-I/PT datasheet PDF?
The official PIC18LF6310 datasheet PDF can be downloaded from Microchip's documentation portal at the URL https://ww1.microchip.com/downloads/en/DeviceDoc/39639F.pdf (PIC18F6310/8410 family reference). For device-specific errata, also retrieve PIC18F6310 Rev. A silicon errata (DS80234). Both documents are required for any production firmware bring-up.
Where to find PIC18LF6310T-I/PT pinout and package drawing?
The PIC18LF6310T-I/PT pinout is in section 1.0 'DEVICE OVERVIEW' of the PIC18F6310 datasheet. The 64-pin TQFP (10x10 mm) outline is mechanical drawing 010-0327 in Microchip's package specification library. Pin 1 is at the top-left with the dot marker; the package follows counter-clockwise numbering, with OSC1/CLKI on pin 13 and MCLR on pin 1.
What are the key specifications of PIC18LF6310T-I/PT for engineers?
According to the PIC18F6310 datasheet (DS39639 family reference), the PIC18LF6310T-I/PT key specs are: 8-bit PIC18 core, 8 KB Flash, 768 B RAM, 40 MHz CPU (10 MIPS), 2.0-3.3V Vdd (LF core), 64-pin TQFP (10x10 mm), industrial -40C to +85C operating range, USART/SPI/I2C peripherals, 10-bit ADC, nanoWatt XLP low-power modes, and 100K Flash endurance cycles. Tape-and-reel suffix 'T' indicates SMT assembly packaging.

엔지니어링 참조 데이터: PIC18LF6310T-I/PT — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose the PIC18LF6310T-I/PT when you need a 64-pin TQFP PIC18 with the full peripheral set (USART, SPI, I2C, 10-bit ADC, enhanced CCP) for industrial or consumer designs running from a 3.3V rail. It is the right choice when maintaining a legacy PIC18F6xxx PCB layout or when you specifically need 50+ I/O pins for HMI panels, motor-control bridges, or sensor-hub daughter boards. For new designs with smaller I/O budgets (under 36 pins), the modern PIC18LF46K22T-I/PT (44-pin TQFP, 64 KB Flash, 16 MIPS) is generally preferred for cost and Flash headroom. For 5V-only industrial systems, the PIC18F6310T-I/PT sibling is the pin-to-pin upgrade - same footprint, 5V core, identical firmware. Avoid using the LF part in any design above 3.6V.

대체품과의 비교

파라미터 이 제품 PIC18LF6310-I/PT PIC18F6310T-I/PT PIC18LF6410T-I/PT
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Package TQFP-64 (10x10 mm) TQFP-64 (10x10 mm) - same TQFP-64 (10x10 mm) - same TQFP-64 (10x10 mm) - same
Operating Voltage 2.0 V to 3.3 V 2.0 V to 3.3 V 4.2 V to 5.5 V 2.0 V to 3.3 V
Flash Memory 8 KB 8 KB 8 KB 16 KB
RAM 768 B 768 B 768 B 768 B
CPU Speed (max) 40 MHz (10 MIPS) 40 MHz (10 MIPS) 40 MHz (10 MIPS) 40 MHz (10 MIPS)
Packaging Tape & Reel ('T') Tray Tape & Reel Tape & Reel
Operating Temperature -40C to +85C (industrial) -40C to +85C -40C to +85C -40C to +85C

주요 차별점

  • 64-pin TQFP with full PIC18 peripheral set (vs PIC18LF46K22T-I/PT)
  • Low-voltage LF core for battery designs (vs PIC18F6310T-I/PT)
  • Tape-and-reel suffix for SMT production (vs PIC18LF6310-I/PT)

설계 노트

The PIC18LF6310T-I/PT requires decoupling within 1 cm of every VDD/VSS pin pair (pins 11/10, 24/23, 34/33, 44/43, 54/53). Use a 100 nF X7R ceramic per pair plus a single 10 uF tantalum or ceramic bulk cap on the main 3.3V rail. A separate AVDD/AVSS pair (pins 61/60) feeds the analog domain and should have its own 100 nF + 10 uF filter. Estimated total bulk capacitance for a clean LF core: 5x 100 nF + 1x 10 uF. Follow the layout pattern in the PIC18F6310 datasheet (DS39639) section 2.0 'Guidelines for Getting Started with PIC18'.

The 64-TQFP (10x10 mm) package has 0.5 mm pitch - use 0.25 mm trace/space with a 4-layer stack-up (signal/GND/power/signal) to escape the inner pins. Place the crystal or resonator within 5 mm of pins 13-14 (OSC1/OSC2) and surround the oscillator with a ground fence tied to the analog ground. Keep high-speed digital lines (PWM, SPI clocks) at least 5 mm away from the analog AVDD/AVSS pair. The exposed thermal pad on TQFP-64 is NOT present on this package - thermal dissipation is through the 64 perimeter leads only.

Three common PIC18LF6310T-I/PT design mistakes: (1) Forgetting to pull MCLR (pin 1) high through a 10 kOhm resistor - the part will not run otherwise; (2) Configuring the LF device at 5V - the LF core is rated 2.0V to 3.3V only, exceeding 3.6V will damage the silicon; (3) Driving a crystal without loading capacitors - use 22 pF to GND from each OSC pin per the crystal datasheet. Configuration word settings (4 MHz vs 8 MHz internal oscillator, WDT enable) must be reviewed against the actual hardware for first-time bring-up.

For designs that switch the 64-pin TQFP I/O at high frequency (e.g. SPI > 10 MHz or PWM > 50 kHz), series-terminate each output with 33 ohm to dampen reflections on long traces (> 50 mm). Keep the I/O supply (VDD pins 11/24/34/44/54) star-routed to a common ferrite bead from the 3.3V rail. The analog AVSS pin (60) MUST be tied to the same ground potential as VSS pins; floating AVSS causes ADC channel crosstalk and reference drift up to 5 LSB.

규정 준수 정보

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

RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - do not use in automotive safety-critical or under-hood applications. Pb-free (lead-free) and halogen-free per Microchip environmental certification.

데이터 검증일: 2026-09-29 — XAIPART 부품 엔지니어링 팀이 검증하고 관리한 데이터

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