PIC16LF1508-E/ML - 7KB Flash 8-Bit MCU, 20MHz, 20-QFN | Microchip
N.º da peça: PIC16LF1508-E/ML ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $1.95 | $1,95 |
| 10 | $1.78 | $17,80 |
| 100 | $1.52 | $152,00 |
| 500 | $1.34 | $670,00 |
| 1.000 | $1.18 | $1.180,00 |
PIC16LF1508-E/ML Visão geral
A PIC microcontroller (MCU) is a compact single-chip computer that combines an 8-bit CPU, non-volatile flash program memory, data RAM, EEPROM and a rich set of digital and analog peripherals around a RISC Harvard architecture. PIC16 mid-range devices use a 14-bit instruction word and a 16-level hardware stack, balancing deterministic real-time response with the simplicity and cost required for high-volume embedded designs. The PIC16LF1508 sits within Microchip's XLP product tree, which targets battery-powered IoT endpoints where active current, sleep current and wake-up time dominate the energy budget.
Key features of the PIC16LF1508 include self-programmability under software control, power-on reset (POR), brown-out reset (BOR), an extended watchdog timer (WDT), an in-circuit serial programming (ICSP) interface, and a 10-bit ADC with hardware acquisition. The CLC peripheral allows digital logic to be wired inside the chip, eliminating external gates, while the NCO and PWM modules support precision frequency and waveform synthesis.
Architecturally the part uses a RISC core with a 200 ns instruction cycle (at 20 MHz) and an 8-bit data path, paired with a 14-bit program bus. This yields compact code density while leaving headroom for an interrupt controller with hardware context save and fast interrupt response. The 1.8 V minimum supply voltage enables direct connection to single-cell Li-coin or 2 × AA battery stacks without boost conversion.
Typical applications include low-power IoT sensor nodes, consumer handheld accessories, LED lighting controllers with smooth dimming, capacitive-touch user interfaces, battery-powered industrial meters, and compact HMI front panels. The combination of QFN footprint, eXtreme Low Power sleep current and rich analog peripherals makes the PIC16LF1508-E/ML especially attractive where PCB area and energy budget are constrained.
When designing with this device, choose decoupling capacitors (100 nF ceramic plus 1 µF bulk) within a few millimeters of VDD and place the ICSP programming header on the production PCB for in-field firmware updates. Programmer/debugger support is provided through MPLAB® X IDE and the PICkit™ 4 or Snap tools. Designers migrating from PIC16F1508 (5 V) parts must confirm peripheral operation at 1.8 V, particularly the ADC and BOR thresholds.
This page synthesizes distributor pricing, drop-in package alternatives and practical engineering guidance not assembled in the standalone datasheet, helping engineers shorten part selection, BOM validation and PCB re-use decisions.
Alternativas drop-in para PIC16LF1508-E/ML — 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 PIC16LF1508-E/ML (mesmo formato e footprint) — diferindo em Package, Program Memory (Flash), ADC, I/O Pins, Operating Temperature.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC16LF1508-I/ML
✅ Drop-In✓ Em estoque
$0.86 / unidade
Ver ficha técnica →PIC16LF1509-E/ML
✅ Drop-In✓ Em estoque
$1.4 / unidade
Ver ficha técnica →PIC16LF1508T-I/ML
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC16LF1507-E/ML
✅ Drop-In✓ Em estoque
$0.55 / unidade
Ver ficha técnica →PIC16LF1454-I/ML
✅ Drop-In✓ Em estoque
$1.42 / unidade
Ver ficha técnica →PIC16LF1508-E/ML Classificações máximas e características elétricas
| Core Architecture | PIC16 enhanced mid-range 8-bit RISC |
| Instruction Set | 14-bit, 200 ns instruction cycle at 20 MHz |
| Program Memory (Flash) | 7 KB (4K × 14 words) |
| Data RAM | 256 bytes |
| Data EEPROM | 128 bytes |
| CPU Speed | Up to 20 MHz (DC – 20 MHz oscillator) |
| Supply Voltage (Vdd) | 1.8 V to 3.6 V (LF variant) |
| I/O Pins | 17 |
| ADC | 10-bit, up to 12 channels |
| Timers | Two 8-bit, one 16-bit |
| Enhanced Peripherals | CLC, NCO, complementary waveform generator, PWM |
| Encapsulamento | 20-pin QFN (4 × 4 mm) |
| Tipo de montagem | Surface Mount |
| Temperatura de operação | -40 °C to +125 °C (E = extended) |
| Self-Programming | Yes, under software control (ICSP) |
| Reset Features | POR, BOR, WDT, Stack overflow/underflow |
| Status RoHS | Compliant |
Configuração de pinos do PIC16LF1508-E/ML
| Pino 1 | RA5 — GPIO / ADC channel / ICSPDAT shared |
| Pino 2 | RA4 — GPIO / ADC channel |
| Pino 3 | RA3 — GPIO / MCLR shared input |
| Pino 4 | RC5 — GPIO / ADC channel |
| Pino 5 | RC4 — GPIO / ADC channel |
| Pino 6 | RC3 — GPIO / ADC channel / SCL |
| Pino 7 | RC2 — GPIO / ADC channel / SDA |
| Pino 8 | RC1 — GPIO / ADC channel |
| Pino 9 | RC0 — GPIO / ADC channel |
| Pino 10 | RA2 — GPIO / analog input |
| Pino 11 | RA1 — GPIO / ICSPCLK shared |
| Pino 12 | RA0 — GPIO / analog input |
| Pino 13 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
| Pino 14 | VSS — Ground reference |
| Pino 15 | RB7 — GPIO / ADC channel |
| Pino 16 | RB6 — GPIO / ADC channel |
| Pino 17 | RB5 — GPIO / ADC channel / PWM |
| Pino 18 | RB4 — GPIO / ADC channel / PWM |
| Pino 19 | RC7 — GPIO / ADC channel |
| Pino 20 | RC6 — GPIO / ADC channel |
Aplicações típicas
PIC16LF1508-E/ML é adequado para 6 aplicaçãos: Battery-Powered IoT Sensor Nodes, LED Lighting and Dimming Controllers, Capacitive-Touch User Interfaces, Consumer Handheld Accessories, Battery-Powered Industrial Meters, Compact HMI Front Panels.
Battery-Powered IoT Sensor Nodes
The PIC16LF1508-E/ML fits IoT sensor nodes thanks to its 1.8 V–3.6 V XLP supply range, 7 KB flash and nanoWatt sleep currents documented in Microchip datasheet DS40001609. The 10-bit ADC with up to 12 channels directly digitizes temperature, light and motion sensors, while the CLC peripheral lets designers wire zero-crossing detectors and pulse counters without external logic. With a 200 ns instruction cycle at 20 MHz the core wakes quickly, takes a sensor reading, transmits via a low-power radio and returns to sleep, optimizing total energy per measurement. The 20-QFN 4 × 4 mm footprint keeps the BOM small enough to drop onto coin-cell powered boards without sacrificing analog accuracy.
Recomendado
LED Lighting and Dimming Controllers
The PIC16LF1508-E/ML is well suited to LED lighting controllers because its complementary waveform generator and PWM modules produce smooth dimming ramps at frequencies that avoid visible flicker. The 17 GPIOs drive multiple LED strings or RGB channels, while the 10-bit ADC samples ambient light feedback for closed-loop brightness control. Operating from 1.8 V to 3.6 V supports direct connection to battery-backed emergency fixtures, and the CLC peripheral combines PWM outputs and zero-current detect signals inside the MCU, removing external gates. The 20-QFN package dissipates LED driver switching losses through its exposed pad, simplifying thermal layout in compact lamps.
Recomendado
Capacitive-Touch User Interfaces
PIC16LF1508-E/ML supports capacitive-touch keypads and sliders because its CLC and NCO peripherals generate the touch-excitation waveforms in hardware, freeing the CPU for response logic. The 7 KB flash holds capacitive-touch libraries and gesture state machines, while the 10-bit ADC plus comparators measure charge-transfer responses with adequate resolution. The 1.8 V minimum supply lets the design run from a small LDO on USB or 2 × AA, and the 20-QFN 4 × 4 mm footprint keeps touch electrode traces short for noise-immune sensing. The extended -40 °C to +125 °C temperature range ensures consistent touch performance over automotive and appliance operating conditions.
Recomendado
Consumer Handheld Accessories
Consumer handheld accessories benefit from the PIC16LF1508-E/ML's combination of low cost, tiny 4 × 4 mm QFN package and XLP nanoWatt sleep currents, as documented in Microchip datasheet DS40001609. The 256-byte RAM plus 128-byte EEPROM handle user settings and calibration constants, while the 7 KB flash stores the device firmware. With 17 GPIOs the MCU drives buttons, status LEDs and IR or BLE companion modules. The 200 ns instruction cycle keeps UI response snappy, and the 1.8 V minimum supply enables single Li-coin cells to power the accessory for years of standby time.
Recomendado
Battery-Powered Industrial Meters
The PIC16LF1508-E/ML is an excellent fit for battery-powered industrial meters because its 1.8 V–3.6 V XLP supply and extended -40 °C to +125 °C range tolerate harsh factory floors. The 10-bit ADC with up to 12 channels digitizes voltage, current and temperature inputs simultaneously, while the CLC and NCO support tamper detection and pulse generation for utility metering. The 7 KB flash and self-programmability allow field firmware updates without removing the meter from service, and the 20-QFN 4 × 4 mm package fits inside slim meter enclosures. The 128-byte EEPROM retains metrology constants across power cycles.
Recomendado
Compact HMI Front Panels
Compact HMI front panels can be built around the PIC16LF1508-E/ML because the device drives small TFT or character displays with its PWM and SPI peripherals, while the CLC accelerates keypad scan logic without CPU intervention. The 7 KB flash holds graphical menus and alarm pages, and the 256-byte RAM is sufficient for screen buffers when paired with an external display controller. The 1.8 V to 3.6 V supply supports direct operation from a regulated 3.3 V rail, and the 20-pin QFN footprint reduces PCB area for slim panel designs. The extended temperature grade ensures operation inside enclosures that heat up under continuous backlight use.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC16LF1508-E/ML — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC16LF1508-I/ML | PIC16LF1509-E/ML | PIC16LF1508T-I/ML | PIC16LF1507-E/ML | PIC16LF1454-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-QFN (4 × 4 mm) | 20-QFN (4 × 4 mm) - same | 20-QFN (4 × 4 mm) - same | 20-QFN (4 × 4 mm) - same | 20-QFN (4 × 4 mm) - same | 20-QFN (4 × 4 mm) - same |
| Program Flash | 7 KB (4K × 14) | 7 KB (same) | 14 KB (+100%) | 7 KB (same) | 3.5 KB (-50%) | 14 KB (+100%) |
| Data RAM | 256 bytes | 256 bytes (same) | 512 bytes (+100%) | 256 bytes (same) | 128 bytes (-50%) | 1024 bytes (+300%) |
| Supply Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V (same) | 1.8 V to 3.6 V (same) | 1.8 V to 3.6 V (same) | 1.8 V to 3.6 V (same) | 1.8 V to 3.6 V (same) |
| CPU Speed | 20 MHz | 20 MHz (same) | 20 MHz (same) | 20 MHz (same) | 20 MHz (same) | 48 MHz (USB-capable, +140%) |
| ADC Channels | Up to 12 (10-bit) | Up to 12 (same) | Up to 12 (same) | Up to 12 (same) | Up to 12 (same) | Up to 9 (10-bit, USB shared) |
| USB Support | No | No | No | No | No | Yes (USB 2.0 FS) |
Principais diferenciais
- Same-family drop-in upgrade path with double flash and RAM (vs PIC16LF1507-E/ML)
- Same-footprint family member with extended industrial range (vs PIC16LF1508-I/ML)
- Lower-voltage LF variant compared with PIC16F1508 (vs PIC16F1508-I/ML)
Notas de projeto
Place a 100 nF decoupling capacitor within 2 mm of the VDD pin and a bulk 1 µF to 10 µF ceramic close to the QFN exposed pad. For XLP sleep-mode designs use a low-leakage LDO such as MCP1700 to retain nanoWatt sleep current. Avoid long VDD traces that add series inductance; the CLC and NCO peripherals can switch edges at tens of megahertz and inject noise onto VDD.
The 20-QFN (4 × 4 mm) package has a center thermal/exposed pad that must be soldered to a copper pour with multiple thermal vias for heat sinking and ground reference. Do not route signal traces under the QFN pad. Keep the ICSP header (ICSPCLK and ICSPDAT) accessible on production boards so the PICkit™ 4 or MPLAB Snap can program the device without removing it from the assembly.
Migrating from PIC16F1508 (5 V) to PIC16LF1508 (3.6 V max) requires reviewing BOR thresholds and ADC reference voltage, since VREF must stay above 1.8 V for the ADC to meet its linearity spec. The MCLR pin must not float; tie it to VDD through a 10 kΩ resistor to avoid spurious resets. Watchdog timer postscaler must be cleared by CLRWDT before expiry in any long-delay loop or the MCU will reset unexpectedly.
For capacitive-touch electrodes keep traces short and shielded with a guard ring tied to the same drive phase. The CLC and NCO peripherals can generate excitation signals in hardware, but the I/O drive strength should be reduced to limit crosstalk to adjacent channels. Place a ferrite bead or 10 Ω resistor on the analog supply trace if the digital sections draw large transient currents during ADC sampling.
Informações de conformidade
RoHS compliant per Microchip product page. Lead-free and halogen-free per Microchip packaging materials declaration. AEC-Q100 not explicitly qualified per the verified data.
