PIC16LF1508-I/SO - 8-Bit 20MHz XLP MCU 7KB Flash | Microchip
부품 번호: PIC16LF1508-I/SO ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $0.85 | $0.85 |
| 10 | $0.72 | $7.20 |
| 100 | $0.61 | $61.00 |
| 500 | $0.55 | $275.00 |
| 1,000 | $0.5 | $500.00 |
PIC16LF1508-I/SO 개요
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (typically Flash), volatile data memory (SRAM), and peripheral functions such as ADCs, timers, communication interfaces, and I/O ports into one package. The PIC16F family sits within the broader PIC microcontroller hierarchy (8-bit PIC -> PIC16 enhanced mid-range -> PIC XLP low-power tier -> Microchip 8-bit MCU -> Microcontroller -> semiconductor). MCUs are the lowest-level processing units in embedded electronics, used wherever sensor reading, decision making, actuator control, or user-interface logic is required. Compared with 16-bit or 32-bit MCUs, 8-bit devices trade raw performance for deterministic behavior, low power, low cost, and code simplicity, making them dominant in cost-sensitive and battery-powered designs.
Key features of the PIC16LF1508-I/SO include 18 general-purpose I/O pins, an enhanced mid-range core with 49 instructions and 16 stack levels, an integrated 10-bit ADC with up to 12 channels, an on-chip temperature indicator, an 8-bit DAC with FVR (Fixed Voltage Reference) support, an Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART), and two MSSP modules that can each operate as SPI or I2C. The device supports both internal and external oscillator modes and includes a 4x PLL for 32 MHz operation from an 8 MHz internal source, giving designers flexibility to balance performance and BOM cost.
Architecturally, the PIC16LF1508 uses a Harvard bus with separate program and data paths, an instruction-pipelined core, and a wide variety of Core Independent Peripherals (CIPs) that execute logic without waking the CPU. The XLP nanoWatt sleep modes (down to 20 nA with RTCC, watchdog, and BOR disabled) and the IDLE/DOZE current-scaling modes make it suited for energy-harvesting and battery applications. Internal voltage reference, power-on reset, brown-out reset, and a windowed watchdog timer are all integrated, simplifying the bill of materials.
Typical applications include IoT sensor nodes, battery-powered remote controls, low-power wireless sensor interface boards, LED lighting controllers, small consumer appliances, hobby/STEM boards, and low-cost industrial control modules. The 18 I/O and 10-bit ADC allow it to read multiple analog sensors while driving PWM outputs or driving character displays. The wide 1.8V-3.6V operating range lets it run directly from a single Li-ion or two AA cells.
When designing with the PIC16LF1508-I/SO, ensure decoupling caps of 100 nF plus 10 uF are placed close to VDD/VCAP, follow Microchip's MSSP layout guidelines for I2C/SPI noise immunity, and configure unused pins as outputs low to minimize sleep current. The SOIC-20 footprint is friendly to hand-soldering and reflow, which is useful for prototypes and small production runs.
This page synthesizes distributor pricing, drop-in alternatives sourced from Microchip's own PIC16(L)F1508/9 datasheet family, and practical design notes not always collected in a single place on the manufacturer datasheet.
드롭인 대체품: PIC16LF1508-I/SO — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: PIC16LF1508-I/SO (동일 폼 팩터 및 풋프린트) — 차이점: Package, Program Memory (Flash), ADC, Timers, Core Architecture.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
PIC16F1508-I/SO
✅ 드롭인✓ 재고 있음
$0.92 / 개
데이터시트 보기 →PIC16LF1508-E/SO
✅ 드롭인✓ 재고 있음
$0.52 / 개
데이터시트 보기 →PIC16F1508-E/SO
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC16F1507-I/SO
✅ 드롭인✓ 재고 있음
$0.92 / 개
데이터시트 보기 →PIC16LF1508-I/SO 최대 정격 & 전기적 특성
| Core | PIC16 enhanced mid-range 8-bit |
| Family | PIC XLP 16F |
| Program Memory | 7 KB (4K x 14) Flash |
| Data Memory (SRAM) | 256 bytes |
| Maximum CPU Speed | 20 MHz (200 ns instruction cycle) |
| Operating Voltage | 1.8 V to 3.6 V |
| I/O Pins | 18 |
| ADC | 10-bit, up to 12 channels |
| DAC | 8-bit (with FVR) |
| Communication Interfaces | 1 x EUSART, 2 x MSSP (SPI / I2C) |
| Timers | 4 x 8-bit, 1 x 16-bit (per datasheet family) |
| 패키지 | 20-pin SOIC (SO, 0.295 in / 7.50 mm body) |
| 동작 온도 | -40 C to +85 C (industrial, -I suffix) |
| Self-Programming | Yes (in-circuit serial programming, ICSP) |
| 실장 유형 | Surface Mount |
| RoHS 상태 | Compliant (per distributor listing) |
PIC16LF1508-I/SO 핀 구성
| 핀 1 | RA5 — Digital I/O / analog input |
| 핀 2 | RA4 — Digital I/O / analog input |
| 핀 3 | RA3 — Digital I/O / analog input / MCLR (input only) |
| 핀 4 | RA2 — Digital I/O / analog input |
| 핀 5 | RA1 — Digital I/O / analog input |
| 핀 6 | RA0 — Digital I/O / analog input |
| 핀 7 | VSS — Ground reference |
| 핀 8 | RC7 — Digital I/O / RX/DT |
| 핀 9 | RC6 — Digital I/O / TX/CK |
| 핀 10 | RC5 — Digital I/O |
| 핀 11 | RC4 — Digital I/O |
| 핀 12 | RC3 — Digital I/O / SCL/MOSI |
| 핀 13 | RC2 — Digital I/O / SDA/MISO |
| 핀 14 | RC1 — Digital I/O / SCL/CCP |
| 핀 15 | RC0 — Digital I/O |
| 핀 16 | VSS — Ground reference |
| 핀 17 | RA7 — Digital I/O / OSC1 |
| 핀 18 | RA6 — Digital I/O / OSC2 |
| 핀 19 | VDD — Positive supply (1.8 V to 3.6 V) |
| 핀 20 | VDD — Positive supply (1.8 V to 3.6 V) |
일반적인 애플리케이션
PIC16LF1508-I/SO 적합 용도: 7 애플리케이션s: Battery-Powered IoT Sensor Node, LED Lighting Controller, Consumer Remote Control, Small Industrial Control Module, Hobby / STEM Educational Board, Battery-Powered Medical Accessory, Low-Cost Wireless Sensor Interface.
Battery-Powered IoT Sensor Node
The PIC16LF1508-I/SO is well suited to battery-powered IoT sensor nodes because its XLP technology pulls as little as 20 nA in sleep while retaining RAM, and its 1.8 V-3.6 V VDD range lets it run directly from a single CR2032 (3 V), a single Li-ion (3.0-4.2 V), or two AA cells. The 10-bit ADC with up to 12 channels is enough to read multiple environmental sensors (temperature, humidity, light) without an external mux, and the two MSSP modules can drive I2C sensors and an SPI radio. Using sleep between transmissions, an SOIC-20 board can run for years from a coin cell, which is the primary reason this PIC is a baseline 8-bit MCU in many low-power IoT reference designs.
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LED Lighting Controller
Lighting controllers benefit from the PIC16LF1508-I/SO's PWM-capable timers, 18 I/O, and 10-bit ADC, all delivered in a small SOIC-20 footprint. The PIC's PWM can drive MOSFETs or LED drivers for color mixing or dimming, while the ADC reads thermistors for thermal foldback - critical in lighting where the LED junction temperature determines lifetime. At 20 MHz the core is fast enough to manage DMX, DALI, or simple 0-10 V dimming protocols in real time, while XLP sleep keeps standby current below 1 mA, meeting Energy Star standby requirements. This is a typical application block in Microchip's PIC16F1508 application brief.
추천
Consumer Remote Control
IR remote controls are a classic PIC16LF1508-I/SO application: the XLP nanoWatt sleep (20 nA typical) lets a coin-cell-powered remote last for years, and the integrated EUSART plus MSSP modules can handle IR modulation through a timer/PWM while keeping firmware overhead low. The 20-pin SOIC package is small enough for slim handheld enclosures, and the 1.8-3.6 V VDD directly drives a CR2032 without a boost regulator. The 7 KB Flash comfortably holds button matrix scanning, IR protocol generation (NEC, RC5, SIRC), and pairing logic, while 256 B RAM handles key debouncing and TX buffers.
추천
Small Industrial Control Module
In small industrial control modules (sensor-conditioning boards, signal-conditioning blocks, and low-cost PLC daughter boards), the PIC16LF1508-I/SO offers a self-programmable Flash, a windowed watchdog timer, brown-out reset, and 18 I/O that can be routed as analog or digital - enough for digital inputs, relay drivers, and analog sensor readout. Its -40 C to +85 C industrial grade covers most factory-floor installations, and the SOIC-20 footprint is friendly to conformal coating and ruggedized PCB assemblies. Combined with an EUSART for RS-485 driver control, this PIC is a reliable workhorse for cost-optimized industrial node boards.
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Hobby / STEM Educational Board
The PIC16LF1508-I/SO is widely adopted in STEM kits and maker boards because the SOIC-20 package is hand-solderable, the enhanced mid-range core is supported by the free MPLAB X IDE and XC8 compiler, and the 18 I/O plus on-chip ADC let students build motor control, sensor reading, and PWM projects with no extra glue. The 7 KB Flash is sufficient for textbook examples and student projects, and the in-circuit serial programming (ICSP) interface makes re-flashing easy with a PICkit or Snap programmer. Microchip's Curiosity Development Board explicitly supports this family, which is why the PIC16F1508 is referenced in many tutorial kits.
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Battery-Powered Medical Accessory
Non-critical battery-powered medical accessories - pill dispensers, portable glucometer dongles, simple rehabilitation counters - use the PIC16LF1508-I/SO for its nanoWatt XLP sleep (20 nA typical), 10-bit ADC for sensor readout, and 1.8 V-3.6 V VDD that directly accepts Li-ion or alkaline chemistries. The self-programmable Flash also enables late-stage firmware updates for calibration revisions. The 20-pin SOIC package is small enough for hand-held enclosures, and the industrial -I temp grade covers most body-worn use cases. For higher-reliability or active implantable applications, Microchip recommends its PIC24 or dsPIC families instead.
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Low-Cost Wireless Sensor Interface
The PIC16LF1508-I/SO pairs naturally with sub-GHz or 2.4 GHz radio modules (MRF24XA, RN2483 LoRa, or ESP-based modules via MSSP) where the MCU hosts the protocol stack, manages the sensor side, and wakes the radio on a periodic interrupt. With 7 KB Flash and 256 B RAM, the PIC16LF1508 can host simple star-topology protocols or wake-on-button event handling for battery-powered sensors like soil-moisture or door/window sensors. The 1.8 V-3.6 V supply matches the radio modules, and XLP sleep minimizes idle drain between transmissions.
추천
추천 제품 요약
엔지니어링 참조 데이터: PIC16LF1508-I/SO — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | PIC16F1508-I/SO | PIC16LF1508-E/SO | PIC16F1508-E/SO | PIC16F1507-I/SO |
|---|---|---|---|---|---|
| Package | 20-pin SOIC (SO) | 20-pin SOIC (SO) - same | 20-pin SOIC (SO) - same | 20-pin SOIC (SO) - same | 20-pin SOIC (SO) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Operating Voltage | 1.8 V to 3.6 V (LF) | 2.3 V to 5.5 V (F) | 1.8 V to 3.6 V (LF) | 2.3 V to 5.5 V (F) | 1.8 V to 3.6 V (LF) |
| Flash Memory | 7 KB | 7 KB | 7 KB | 7 KB | 3.5 KB (-50%) |
| SRAM | 256 B | 256 B | 256 B | 256 B | 128 B (-50%) |
| Maximum Clock | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| I/O Pins | 18 | 18 | 18 | 18 | 18 |
| Temperature Range | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) | -40 C to +125 C (extended) | -40 C to +125 C (extended) | -40 C to +85 C (industrial) |
주요 차별점
- Lowest supply voltage range in the 7 KB Flash / 256 B RAM SO-20 class (vs PIC16F1508-I/SO)
- Full 7 KB Flash and 256 B RAM vs the half-spec F1507 (vs PIC16F1507-I/SO)
- XLP nanoWatt sleep - down to 20 nA typical (vs PIC16F1508-I/SO)
설계 노트
Place 100 nF and 10 uF decoupling capacitors on each VDD pair close to the IC pins to meet the PIC16LF1508 power-rail ripple requirements during ADC conversions. The LF variant operates from 1.8-3.6 V; do not apply 5 V to VDD, otherwise use the PIC16F1508 (F) variant. Decoupling must be tight because the internal ADC can inject brief transient currents during conversion that show up on VDD if the trace impedance is high. Estimated: at 20 MHz CPU with 18 I/O switching at 5 mA total, a 100 nF ceramic + 10 uF bulk pair keeps ripple below 50 mV on a 4-layer board.
Follow Microchip's PCB layout guidelines for the MSSP I2C/SPI lines - keep clock and data traces short, route ground alongside, and avoid parallel routing with high-current traces to prevent noise-induced MSSP errors. Add 4.7 kohm pull-ups on SDA/SCL (close to the PIC) for I2C stability above 100 kHz. Estimated: an SOIC-20 SO footprint needs at least 6 mil trace/space on a 2-layer board to keep the SOIC land pattern within IPC-7351 tolerances.
Do not leave unused pins floating - configure them as outputs low to minimize sleep current on this XLP PIC. The MCLR pin (RA3) must be pulled high through a 10 kohm resistor to VDD if not used, otherwise the device can spuriously reset during brown-out. Also note that RA0-RA5 are analog-capable but are NOT 5 V tolerant on the LF variant - any signal above VDD + 0.3 V will inject leakage. Estimated: leaving 4 pins floating adds roughly 1-2 uA to Iq in sleep mode.
규정 준수 정보
RoHS compliant per distributor listing. Industrial (-I) grade - not AEC-Q100 qualified. Lead-free reflow profile per JEDEC J-STD-020. Not halogen-free status not specified in web data; default to 'unknown'.
