PIC16LF18345T-I/SO - 32MHz 8-bit MCU, 14KB Flash, 20-SOIC | Microchip
N.º da peça: PIC16LF18345T-I/SO ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $1.78 | $1,78 |
| 10 | $1.62 | $16,20 |
| 100 | $1.45 | $145,00 |
| 500 | $1.31 | $655,00 |
| 1.000 | $1.18 | $1.180,00 |
| 2.500 | $1.06 | $2.650,00 |
PIC16LF18345T-I/SO Visão geral
An 8-bit microcontroller (MCU) is a single-chip computer that combines a CPU, non-volatile program memory, working RAM, EEPROM and configurable peripherals on one die. The PIC16F family uses a Harvard-architecture RISC core with 14-bit instruction words and a deep instruction pipeline, providing deterministic interrupt latency in the order of 100 nanoseconds. Within the broader taxonomy, the PIC16LF18345 is a member of the PIC16F1 8-bit lineup -> PIC16 family -> 8-bit PIC microcontrollers -> microcontrollers -> embedded semiconductors. The LF silicon revision targets battery-powered edge-node applications where nanoWatt XLP sleep currents extend operating life.
Key features include Peripheral Pin Select (PPS) for remapping digital peripherals to almost any I/O, Core Independent Peripherals (CLC, NCO, CWG) that operate without CPU intervention, an internal 32MHz oscillator with ±1% accuracy after calibration, and a 10-bit ADC with up to 17 channels. The device also offers 256B of EEPROM for non-volatile user data, an Enhanced Universal Synchronization Process (EUSART), MSSP (SPI/I2C), and four 10-bit PWM outputs. The 20-SOIC (300mil, 7.5mm body width) package supports industrial temperature ranges from -40C to +85C.
Typical applications include IoT sensor nodes, low-power remote controls, battery-operated medical monitoring peripherals, industrial sensor interfaces, and small consumer devices requiring peripheral-rich 8-bit processing. The XLP technology makes it well-suited for energy-harvesting designs where shutdown current must remain below 100nA. Compared with ARM Cortex-M0+ parts, this PIC offers fixed-cycle deterministic execution, simpler toolchains and smaller code footprints for bit-banging and interrupt-driven control loops.
When designing with this device, allocate sufficient Flash for the MPLAB X stack and bootloader region, and follow the recommended 0.1uF decoupling on VDD with a 10uF bulk capacitor on AVDD. Engineers migrating from older PIC16F1xxx parts should verify PPS register mappings because pin functions are remapped on this family.
Alternativas drop-in para PIC16LF18345T-I/SO — 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 PIC16LF18345T-I/SO (mesmo formato e footprint) — diferindo em ADC, Package, Comparators, Core Architecture, DAC.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC16LF18345-I/SO
✅ Drop-In✓ Em estoque
$1.02 / unidade
Ver ficha técnica →PIC16LF18345-I/SS
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$1.18 / unidade
Ver ficha técnica →PIC16F18345T-I/SO
✅ Drop-In✓ Em estoque
$0.55 / unidade
Ver ficha técnica →PIC16LF18344T-I/SO
✅ Drop-In✓ Em estoque
$1.05 / unidade
Ver ficha técnica →PIC16LF18345T-I/SO Classificações máximas e características elétricas
| Core Architecture | PIC 8-bit RISC (Harvard, 14-bit instruction word) |
| Family | PIC16F (XLP series) |
| Maximum CPU Frequency | 32 MHz |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data RAM | 1 KB |
| Data EEPROM | 256 B |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| ADC | 10-bit, up to 17 channels |
| DAC | 5-bit |
| PWM Channels | 10-bit, 4 outputs |
| Comparators | Yes |
| Communication Peripherals | EUSART, MSSP (SPI / I2C) |
| Core Independent Peripherals | CLC, NCO, CWG, CCP, PPS |
| Faixa de temperatura de operação | -40 C to +85 C (Industrial) |
| Encapsulamento | 20-SOIC (0.295", 7.50 mm body width) |
| Tipo de montagem | Surface Mount |
| Status RoHS | Compliant |
| Nível MSL | MSL 1 |
Configuração de pinos do PIC16LF18345T-I/SO
| Pino 1 | RA5 — Bidirectional I/O / ICSPCLK |
| Pino 2 | RA4 — Bidirectional I/O |
| Pino 3 | RA3 — Bidirectional I/O / MCLR |
| Pino 4 | RA2 — Bidirectional I/O |
| Pino 5 | RA1 — Bidirectional I/O / ICSPDAT |
| Pino 6 | RA0 — Bidirectional I/O |
| Pino 7 | VSS — Ground reference |
| Pino 8 | VDD — Positive supply (1.8 V to 3.6 V) |
| Pino 9 | RB7 — Bidirectional I/O |
| Pino 10 | RB6 — Bidirectional I/O |
| Pino 11 | RB5 — Bidirectional I/O |
| Pino 12 | RB4 — Bidirectional I/O |
| Pino 13 | RC0 — Bidirectional I/O / PPS-mappable |
| Pino 14 | RC1 — Bidirectional I/O / PPS-mappable |
| Pino 15 | RC2 — Bidirectional I/O / PPS-mappable |
| Pino 16 | RC3 — Bidirectional I/O / PPS-mappable |
| Pino 17 | RC4 — Bidirectional I/O / PPS-mappable |
| Pino 18 | RC5 — Bidirectional I/O / PPS-mappable |
| Pino 19 | RC6 — Bidirectional I/O / PPS-mappable |
| Pino 20 | RC7 — Bidirectional I/O / PPS-mappable |
Aplicações típicas
PIC16LF18345T-I/SO é adequado para 6 aplicaçãos: Battery-Powered IoT Sensor Node, IR Remote Control Transmitter, Industrial Sensor Signal Conditioning, Portable Medical Monitoring Device, LED Lighting and PWM Controller, Low-Power Fan / Motor Speed Controller.
Battery-Powered IoT Sensor Node
The PIC16LF18345T-I/SO suits battery-powered IoT sensor nodes because its XLP nanoWatt technology delivers sleep currents below 100 nA with 1.8-3.6 V VDD support. The 14 KB Flash hosts a sensor reading + LoRa/BLE driver, while the 10-bit ADC with up to 17 channels directly interfaces analog temperature, humidity or gas sensors without external components. The integrated EUSART drives a wireless module, and PPS remaps the SPI to any free pin for an external accelerometer. Compared to a Cortex-M0+, this PIC consumes an order of magnitude less sleep current.
Recomendado
IR Remote Control Transmitter
The PIC16LF18345T-I/SO fits IR remote control designs because its Core Independent Peripherals (CLC and NCO) generate 38 kHz carrier waveforms without CPU intervention, freeing the core for button scanning. PPS remaps the carrier output to any I/O pin, simplifying mechanical design. The 10-bit PWM with four outputs can additionally control LED indicators, and the 1.8 V minimum VDD lets the MCU run directly from a single alkaline cell. Battery life can exceed three years on a CR2032 thanks to the XLP sleep current.
Recomendado
Industrial Sensor Signal Conditioning
The PIC16LF18345T-I/SO works in industrial sensor signal conditioning because its 10-bit ADC, two comparators, 5-bit DAC and op-amp modules replace a discrete analog front end. The EUSART outputs a 4-20 mA or RS-485 signal while MSSP drives SPI sensors. The -40 C to +85 C industrial temperature range and 20-SOIC package with 7.5 mm body fit tight DIN-rail enclosures. PPS allows the same PCB design to be reused across product variants with different peripheral mixes.
Recomendado
Portable Medical Monitoring Device
The PIC16LF18345T-I/SO suits portable medical peripherals because its deterministic 8-bit core provides predictable interrupt latency needed for ECG, glucose and pulse-oximetry acquisition. The 1 KB RAM buffers sensor data before Bluetooth transmission, and the 256 B EEPROM stores calibration values that persist through battery swaps. Operating at 1.8 V lets it run directly from a single Li coin cell, while the integrated 10-bit ADC and op-amp reduce BOM cost in medical-grade designs.
Recomendado
LED Lighting and PWM Controller
The PIC16LF18345T-I/SO controls LED lighting and PWM dimming because its four 10-bit PWM outputs can drive RGB + white channels with 1024-step resolution each. The 32 MHz core and 8 MIPS throughput handle DMX100Klogy or DALI protocol stacks. CWG generates complementary MOSFET drive signals for high-efficiency buck or boost LED drivers, while the integrated op-amp closes the current-sense feedback loop. The 1.8-3.6 V range matches battery-powered LED fixtures.
Recomendado
Low-Power Fan / Motor Speed Controller
The PIC16LF18345T-I/SO fits low-power fan and motor speed controllers because its CWG peripheral generates anti-phase MOSFET drive signals up to 32 kHz with hardware dead-band insertion, freeing the CPU for closed-loop PID. The 10-bit ADC samples back-EMF or current-sense signals, while the comparators trigger hardware overcurrent protection without latency. XLP technology keeps standby power below regulatory limits for always-on appliances, and PPS allows the same firmware to support BLDC, brushed-PDC and stepper topologies.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC16LF18345T-I/SO — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC16LF18345-I/SO | PIC16F18345T-I/SO | PIC16LF18344T-I/SO |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SOIC (7.50 mm) | 20-SOIC (7.50 mm) - same | 20-SOIC (7.50 mm) - same | 20-SOIC (7.50 mm) - same |
| Program Memory (Flash) | 14 KB | 14 KB | 14 KB | 7 KB (-50%) |
| Data RAM | 1 KB | 1 KB | 1 KB | 1 KB |
| Supply Voltage (VDD) | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V |
| Maximum Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| EEPROM | 256 B | 256 B | 256 B | 256 B |
| ADC | 10-bit, 17 ch | 10-bit, 17 ch | 10-bit, 17 ch | 10-bit, 17 ch |
| AEC-Q100 Automotive | No (Industrial grade) | No | No | No |
Principais diferenciais
- Lowest voltage operation in PIC16F1 20-SOIC family (vs PIC16F18345T-I/SO)
- Peripheral Pin Select (PPS) flexibility (vs PIC16LF1829-I/SO)
- Core Independent Peripherals (CLC + NCO + CWG) (vs PIC16LF18344T-I/SO)
Notas de projeto
Place a 0.1 uF ceramic decoupling capacitor within 3 mm of the VDD pin (pin 8) and a 10 uF bulk capacitor on the same net near the supply via. The AVDD pin (when bonded out) requires a separate 0.1 uF cap to AVSS. Do not exceed 3.6 V on VDD; the LF die is not 5 V tolerant. Enable the internal voltage regulator (if used in PPS) before applying VDD > 1.8 V.
Keep the 32 MHz trace from the internal oscillator short. Use a 4-layer PCB with a dedicated ground plane for low-EMI analog measurements. Route the ICSP signals (ICSPCLK on RA5 and ICSPDAT on RA1) directly to a 2x3 header for programming without interfering with peripheral I/O. Allow guard traces or ground shielding around analog ADC inputs to suppress digital switching noise.
PPS pin mapping is unlocked after a one-time configuration sequence; missing this step causes peripherals to default to fixed pins. Do not configure MCLR as an input without a 10 kohm pull-up or the device will fail to start. The LF silicon variant operates only to 3.6 V; connecting 5 V to any I/O will damage the device. EEPROM writes take 4 ms and block code execution; use interrupts sparingly during EEPROM operations.
When using the ADC with high-impedance sensors, enable the ADC dedicated FRC oscillator and add 1 uF reservoir capacitors at analog sensor outputs to drive the 10-bit sample-and-hold accurately. The internal 1.024 V voltage reference improves ADC absolute accuracy over VDD-referenced conversions. Use the comparators instead of the ADC for fast threshold detection to avoid ADC latency.
Informações de conformidade
RoHS and REACH compliant per Microchip product page. Industrial temperature grade only - not AEC-Q100 qualified; automotive designers should choose PIC16F18345T-I/SOVAO or PIC16LF18345-E/SOVAO.
