PIC18LF65K40-E/PT - 64MHz 8-bit XLP MCU, 32KB Flash | Microchip
N.º da peça: PIC18LF65K40-E/PT ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $4.5 | $4,50 |
| 10 | $4.05 | $40,50 |
| 100 | $3.6 | $360,00 |
| 500 | $3.2 | $1.600,00 |
| 1.000 | $2.85 | $2.850,00 |
PIC18LF65K40-E/PT Visão geral
An 8-bit microcontroller (MCU) is a single-chip computer based on an 8-bit data bus architecture, integrating a CPU, memory, and peripherals into one package. The PIC18LF family sits within Microchip's 8-bit PIC hierarchy: PIC18 -> PIC18F (Flash) / PIC18LF (low-voltage Flash) -> 8-bit PIC MCU -> Microcontroller -> Integrated Circuit. The 'LF' prefix denotes low-voltage operation (down to 1.8 V) suited for battery-powered and energy-harvesting applications, while XLP technology minimizes sleep current for ultra-low standby power.
Key features of the PIC18LF65K40 include Core Independent Peripherals (CWG, NCO, CLC) that offload tasks from the CPU, an IDLE/DOZE/PMD power management block, hardware CRC/SCAN for memory integrity, and Peripheral Pin Select (PPS) for flexible signal routing. The integrated ECAN module and dual EUSART enable robust wired communication for industrial networking, while the 5-bit DAC and zero-crossing detector (ZCD) simplify analog control loops without external components.
The architecture combines a RISC Harvard-bus CPU with hardware multiply and a 31-level interrupt vector table, giving deterministic real-time response. The 64-pin TQFP package offers ample I/O (up to 60 GPIO) while keeping the board footprint compact at 10x10 mm with 0.5 mm pitch. ECC Flash and RAM support data retention and resilience against soft errors for industrial control, sensor hubs, and HMI applications.
Typical applications include industrial control and automation, automotive body and sensor nodes, low-power IoT sensor nodes, HMI/keypad controllers, and consumer electronics with touch/proximity sensing. The wide 1.8 V-5.5 V supply allows direct Li-ion battery operation without external regulation, while 5 V tolerance on digital I/O simplifies interfacing to legacy 5 V logic.
When designing with this MCU, plan for an external decoupling network of 100 nF and 10 uF near VDD pins, route the analog AVSS/AVDD pair separately from digital supplies, and use the PPS feature to remap peripheral pins without re-spinning the PCB. Choose PIC18F65K40 (non-LF) only if you do not need 1.8 V operation, otherwise the LF variant preserves battery life and BOM cost in low-voltage designs.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Alternativas drop-in para PIC18LF65K40-E/PT — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC18LF65K40-E/PT (mesmo formato e footprint) — diferindo em ADC, Family, Package, Core, I/O Pins.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC18LF66K40-E/PT
✅ Drop-In✓ Em estoque
$2.4 / unidade
Ver ficha técnica →PIC18LF67K40-E/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18LF65K40-I/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18F65K40-E/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18LF65K40-E/MR
✅ Drop-In✓ Em estoque
$2.55 / unidade
Ver ficha técnica →PIC18LF65K40-E/PT Classificações máximas e características elétricas
| Product Type | 8-bit Microcontroller (MCU) |
| Family | PIC18LF65K40 / PIC18LF66K40 |
| Core | PIC RISC 8-bit |
| Program Memory (Flash) | 32 KB (16K x 16) |
| RAM | 2 KB |
| EEPROM | 256 B |
| Maximum CPU Frequency | 64 MHz |
| Operating Voltage Range | 1.8 V to 5.5 V |
| I/O Pins | Up to 60 |
| ADC | 10-bit ADC2 (with Computation) |
| DAC | 5-bit DAC |
| Comparators | Yes |
| PWM / CCP / CWG | Yes (PWM, CCP, CWG peripherals) |
| Timers | Integrated Timers and Capture/Compare/PWM |
| Communication | ECAN, EUSART, SPI, I2C |
| Special Peripherals | ZCD, PPS, WWDT, SCAN/CRC, HLT, IDLE/DOZE/PMD |
| Encapsulamento | 64-pin TQFP (PT), 10x10 mm, 0.5 mm pitch |
| Tipo de montagem | Surface Mount |
| Temperatura de operação | -40 C to +125 C (E = extended) |
| Status RoHS | Compliant |
Configuração de pinos do PIC18LF65K40-E/PT
| Pino 1 | MCLR — Master Clear (Reset) input, active-low |
| Pino 2 | RA0 — PORTA0 / analog input |
| Pino 3 | RA1 — PORTA1 / analog input |
| Pino 4 | RA2 — PORTA2 / analog input |
| Pino 5 | RA3 — PORTA3 / analog input |
| Pino 6 | RA4 — PORTA4 / analog input |
| Pino 7 | RA5 — PORTA5 / analog input |
| Pino 8 | RA6 — PORTA6 / analog input |
| Pino 9 | RA7 — PORTA7 / analog input |
| Pino 10 | VSS — Ground |
| Pino 11 | VDD — Positive supply |
| Pino 12 | RB0 — PORTB0 / IOC |
| Pino 13 | RB1 — PORTB1 / IOC |
| Pino 14 | RB2 — PORTB2 / IOC |
| Pino 15 | RB3 — PORTB3 / IOC |
| Pino 16 | RB4 — PORTB4 / IOC |
| Pino 17 | RB5 — PORTB5 / IOC / PWM |
| Pino 18 | RB6 — PORTB6 / IOC / PGC |
| Pino 19 | RB7 — PORTB7 / IOC / PGD |
| Pino 20 | VSS — Ground |
| Pino 21 | VDD — Positive supply |
| Pino 22 | RC0 — PORTC0 |
| Pino 23 | RC1 — PORTC1 |
| Pino 24 | RC2 — PORTC2 |
| Pino 25 | RC3 — PORTC3 |
| Pino 26 | RC4 — PORTC4 |
| Pino 27 | RC5 — PORTC5 |
| Pino 28 | RC6 — PORTC6 / TX |
| Pino 29 | RC7 — PORTC7 / RX |
| Pino 30 | VSS — Ground |
| Pino 31 | VDD — Positive supply |
| Pino 32 | RD0 — PORTD0 |
| Pino 33 | RD1 — PORTD1 |
| Pino 34 | RD2 — PORTD2 |
| Pino 35 | RD3 — PORTD3 |
| Pino 36 | RD4 — PORTD4 |
| Pino 37 | RD5 — PORTD5 / PWM |
| Pino 38 | RD6 — PORTD6 / PWM |
| Pino 39 | RD7 — PORTD7 / PWM |
| Pino 40 | VSS — Ground |
| Pino 41 | VDD — Positive supply |
| Pino 42 | RE0 — PORTE0 / analog |
| Pino 43 | RE1 — PORTE1 / analog |
| Pino 44 | RE2 — PORTE2 / analog |
| Pino 45 | RE3 — PORTE3 / analog |
| Pino 46 | AVSS — Analog ground |
| Pino 47 | AVDD — Analog positive supply |
| Pino 48 | OSC1 — Crystal/oscillator input |
| Pino 49 | OSC2 — Crystal/oscillator output |
| Pino 50 | RF0 — PORTF0 |
| Pino 51 | RF1 — PORTF1 |
| Pino 52 | RF2 — PORTF2 |
| Pino 53 | RF3 — PORTF3 |
| Pino 54 | RF4 — PORTF4 |
| Pino 55 | RF5 — PORTF5 |
| Pino 56 | RF6 — PORTF6 |
| Pino 57 | RF7 — PORTF7 |
| Pino 58 | RG0 — PORTG0 |
| Pino 59 | RG1 — PORTG1 |
| Pino 60 | RG2 — PORTG2 |
| Pino 61 | RG3 — PORTG3 |
| Pino 62 | RG4 — PORTG4 |
| Pino 63 | VSS — Ground |
| Pino 64 | VDD — Positive supply |
Aplicações típicas
PIC18LF65K40-E/PT é adequado para 6 aplicaçãos: Industrial Sensor Node / 4-20 mA Transmitter, Automotive Body Control Module, Low-Power IoT / Battery Sensor Hub, HMI / Keypad / Small Touch Controller, Consumer Appliance Control Board, Portable / Wearable Medical Devices.
Industrial Sensor Node / 4-20 mA Transmitter
The PIC18LF65K40-E/PT's 1.8 V-5.5 V supply range, XLP sleep current under 1 uA, and integrated 10-bit ADC2 with Computation enable direct battery-powered sensor conditioning for industrial 4-20 mA transmitters and process-control nodes. The ECAN module supports DeviceNet and CANopen protocols commonly used in factory automation, while the dual EUSART and SPI/I2C ports interface to digital sensors and HMI displays. At full 64 MHz the 16 MIPS throughput handles filtering, linearization, and HART-style modulation on-chip. PPS remaps peripheral pins without board rework.
Recomendado
Automotive Body Control Module
The PIC18LF65K40-E/PT's integrated ECAN and wide 1.8 V-5.5 V supply tolerance with -40 C to +125 C extended temperature grade make it suitable for automotive body and convenience modules (window lifters, mirror controllers, HVAC flap actuators). The PIC18LF65K40 family supports CAN 2.0B active, removing the need for a separate CAN controller IC. The 5-bit DAC drives analog actuator setpoints, while PWM/CWG generates motor control signals. PPS and Core Independent Peripherals offload timing-critical tasks from the CPU, freeing MIPS for diagnostics and OBD-II signaling.
Recomendado
Low-Power IoT / Battery Sensor Hub
XLP technology and 1.8 V minimum supply give the PIC18LF65K40-E/PT ultra-low sleep current (under 1 uA typical), enabling years of operation from a single CR2032 coin cell or two AA alkaline cells. The MCU wakes on ADC2 threshold triggers, ZCD events, or interrupt-on-change pins, samples sensors via SPI/I2C, transmits over EUSART or ECAN, and returns to sleep without CPU intervention. Hardware CRC/SCAN protects Flash integrity while in the field. ZCD enables zero-crossing power metering for AC mains-powered IoT energy monitors with no external detection circuitry.
Recomendado
HMI / Keypad / Small Touch Controller
With up to 60 GPIO and Peripheral Pin Select, the PIC18LF65K40-E/PT can directly scan 8x8 matrix keypads, drive character or graphic LCDs, and read capacitive-touch sensors via the integrated comparators and PWM/CWG. The 5-bit DAC generates contrast voltages for legacy LCDs without a charge pump. ADC2 with Computation scans multiple touch pads in software while the CWG outputs the excitation waveform, eliminating dedicated touch ICs. PPS remaps touch channels to spare pins for layout flexibility in space-constrained HMI front panels.
Recomendado
Consumer Appliance Control Board
White goods and small appliances benefit from the PIC18LF65K40-E/PT's integrated motor-control peripherals (PWM/CCP/CWG), ZCD for AC zero-crossing detection, and 5-bit DAC for analog trim. The 64-pin TQFP exposes enough GPIO to drive triac-based heater control, relays, and user displays while the ECAN interface supports appliance network buses. XLP enables standby power below 100 mW to meet global energy regulations, and the extended -40 C to +125 C temperature grade handles the thermal environment behind a refrigerator compressor or oven fascia.
Recomendado
Portable / Wearable Medical Devices
For portable medical peripherals (pulse-oximeter probes, handheld spirometers, blood-pressure monitors) the PIC18LF65K40-E/PT's 1.8 V operation, XLP sleep, and integrated ADC2/DAC/Comparators minimize external components and battery count. The ECAN or EUSART link to a host controller while the SPI/I2C ports read sensor front-ends. Hardware CRC and SCAN protect Flash against soft errors in long-term deployments. The wide 1.8 V-5.5 V supply lets designers reuse a single-cell Li-ion or two AAA cells without a boost converter, shrinking the bill of materials.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC18LF65K40-E/PT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC18LF66K40-E/PT | PIC18LF67K40-E/PT | PIC18LF65K40-I/PT | PIC18F65K40-E/PT | PIC18LF65K40-E/MR |
|---|---|---|---|---|---|---|
| Package | 64-pin TQFP (PT), 10x10 mm | 64-pin TQFP (PT), 10x10 mm - same | 64-pin TQFP (PT), 10x10 mm - same | 64-pin TQFP (PT), 10x10 mm - same | 64-pin TQFP (PT), 10x10 mm - same | 64-pin TQFP (PT), 10x10 mm - same |
| 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 | 32 KB |
| RAM | 2 KB | 4 KB | 8 KB | 2 KB | 2 KB | 2 KB |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| Operating Voltage Range | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 2.3 V to 5.5 V | 1.8 V to 5.5 V |
| Operating Temperature | -40 C to +125 C (E = extended) | -40 C to +125 C | -40 C to +125 C | -40 C to +85 C (industrial) | -40 C to +125 C | -40 C to +125 C |
| Max CPU Frequency | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) |
Principais diferenciais
- Lowest-Voltage Operation in the Family (vs PIC18F65K40-E/PT)
- Extended Temperature Grade (-40C to +125C) (vs PIC18LF65K40-I/PT)
- Same 64-pin TQFP Pinout Across the Family (vs PIC18LF66K40-E/PT)
Notas de projeto
Place 100 nF ceramic decoupling capacitors within 3 mm of every VDD pin and a single 10 uF bulk capacitor on the supply rail. For PIC18LF65K40-E/PT designs that use ADC2, add a separate 100 nF + 10 uF pair on AVDD to keep analog and digital noise isolated. The wide 1.8 V-5.5 V input range means you can power the part directly from a single-cell Li-ion battery (3.0 V-4.2 V) or two AA cells without an LDO, saving BOM cost in low-power designs.
Route the MCLR pin to a dedicated reset button with a 10 kohm pull-up to VDD; adding a 100 nF capacitor from MCLR to VSS provides noise immunity in noisy industrial environments. For in-circuit serial programming (ICSP), dedicate pins RB6 (PGC) and RB7 (PGD) - do not share them with high-impedance analog signals that could disturb programming. The 64-pin TQFP (PT) at 0.5 mm pitch requires fine-pitch PCB layout: use 0.2 mm traces between pads and 0.5 mm via-in-pad for reliable manufacturing.
Do not assume the PIC18F65K40 and PIC18LF65K40 are interchangeable - the F variant requires VIN >= 2.3 V and will brown-out below that, while the LF variant operates to 1.8 V. Estimated: at 3.3 V supply with 64 MHz CPU, core current is around 10 mA but XLP sleep drops to under 1 uA; verify that peripheral pins are configured as digital (ANSELx cleared) before using them as GPIO, otherwise the input buffer is disabled. Use the PPS Unlock sequence before remapping peripheral outputs to avoid an inadvertent lock condition.
Informações de conformidade
RoHS compliant per Microchip product page. Lead-free matte-tin finish. AEC-Q100 not qualified (this is a general-purpose MCU; automotive customers should evaluate the Automotive Portfolio for Q-graded variants).
