PIC16LF1508-E/SO - 7KB Flash 8-bit MCU 20MHz XLP SOIC-20 | Microchip
部品番号: PIC16LF1508-E/SO ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0.85 | $0.85 |
| 10 | $0.78 | $7.80 |
| 100 | $0.72 | $72.00 |
| 500 | $0.65 | $325.00 |
| 1,000 | $0.58 | $580.00 |
| 3,000 | $0.52 | $1,560.00 |
PIC16LF1508-E/SO 概要
An 8-bit microcontroller (MCU) is a small, self-contained computer-on-a-chip that combines a CPU, memory (Flash/ROM for program code, RAM for data, EEPROM for non-volatile storage), and programmable peripherals on a single silicon die. The 8-bit PIC® architecture belongs to the wider category of microcontrollers -> embedded processors -> semiconductors, and uses a RISC-based Harvard architecture that executes one instruction per clock cycle (200ns at 20MHz). The 'LF' suffix denotes a low-voltage process optimized for battery-powered designs where quiescent current, sleep current (down to 20 nA typical in XLP sleep), and active run current (typically <1 mA/MHz) drive the part selection.
Key features include 18 configurable I/O pins with interrupt-on-change, an on-chip 32kHz LFINTOSC plus 16MHz HFINTOSC with PLL support, an internal voltage reference for ADC, and a built-in temperature indicator. The device supports in-circuit serial programming (ICSP) via two pins, eliminating the need for an external programmer in production. Brown-out Reset (BOR), Power-on Reset (POR), and a Windowed Watchdog Timer (WWDT) provide robust fault recovery for unattended IoT nodes.
Technical depth comes from the integration of CLC and NCO blocks: the CLC allows combinational and sequential logic to be implemented in hardware using internal signal routing, replacing small glue-logic ICs; the NCO generates high-resolution frequencies (up to 20-bit step) for LED dimming, IR carrier synthesis, or low-jitter clock generation without consuming CPU cycles. The 10-bit ADC supports acquisition across multiple dedicated channels including an internal Fixed Voltage Reference (FVR).
Typical applications include battery-powered sensor nodes, LED lighting controls (the CWG module supports half-bridge/full-bridge topologies), consumer appliances with capacitive-touch user interfaces, and low-cost IoT endpoints. The wide 1.8V-3.6V range and ultra-low sleep current also suit energy-harvesting designs where coin-cell batteries must last the full product lifetime. The extended ('-E') temperature grade spans -40°C to +125°C, qualifying the part for industrial and certain automotive interior environments.
When designing with this MCU, reserve 2 of the 20 pins for ICSP (PGC/PGD) so in-system programming is possible without removing the device from the board. Decouple VDD with a 100nF ceramic capacitor as close to the pin as practical, and configure the unused I/O pins as outputs low to minimize current draw. According to the manufacturer datasheet, the LF variant should not be powered above 3.6V — use the PIC16F1508 family for 5V-only buses.
This page synthesizes distributor pricing, drop-in SOIC-20 alternatives, and practical design notes not found on a single manufacturer product page.
ドロップイン代替品: PIC16LF1508-E/SO — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: PIC16LF1508-E/SO （同一形状・フットプリント） — 相違点: Package, ADC, Operating Temperature, Timers, Core Architecture.
クイック比較ツール — 並列比較する代替部品を選択:
PIC16F1508-E/SO
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC16LF1508-I/SO
✅ ドロップイン✓ 在庫あり
$0.5 / 個
データシートを見る →PIC16F1508-I/SO
✅ ドロップイン✓ 在庫あり
$0.92 / 個
データシートを見る →PIC16LF1508-E/P
✅ ドロップイン✓ 在庫あり
$1.05 / 個
データシートを見る →PIC16LF1507-I/SO
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$0.78 / 個
データシートを見る →PIC16LF1508-E/SO 最大定格＆電気的特性
| Core Architecture | PIC 8-bit RISC (enhanced mid-range x14) |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data RAM | 256 bytes |
| Maximum CPU Speed | 20 MHz (200 ns instruction cycle) |
| Operating Voltage Range (PIC16LF1508) | 1.8 V to 3.6 V |
| 動作温度範囲 | -40 C to +125 C (Extended '-E' grade) |
| I/O Pins | 18 |
| ADC | 10-bit, up to 18 channels |
| Timers | Timer0, Timer1, Timer2 |
| Configurable Logic Cells (CLC) | Yes |
| Complementary Waveform Generator (CWG) | Yes |
| Numerically Controlled Oscillator (NCO) | Yes |
| Internal Oscillator | 32 kHz LFINTOSC + 16 MHz HFINTOSC with PLL |
| Brown-out Reset (BOR) | Yes |
| Windowed Watchdog Timer | Yes |
| In-Circuit Serial Programming (ICSP) | Yes (2-wire) |
| パッケージ | 20-pin SOIC (SO) - 300 mil |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant |
PIC16LF1508-E/SO ピン構成
| ピン 1 | RA3/AN3/C1IN+/T1G — Bidirectional I/O, ADC ch3, comparator input, Timer1 gate |
| ピン 2 | RA4/AN4/T1OSO — Bidirectional I/O, ADC ch4, Timer1 oscillator output |
| ピン 3 | RA5/MCLR/VPP — Bidirectional I/O, Master Clear (reset), ICSP programming voltage |
| ピン 4 | RA0/AN0/ICSPDAT — Bidirectional I/O, ADC ch0, ICSP data |
| ピン 5 | RA1/AN1/ICSPCLK — Bidirectional I/O, ADC ch1, ICSP clock |
| ピン 6 | RA2/AN2 — Bidirectional I/O, ADC ch2 |
| ピン 7 | RC0 — Bidirectional I/O (PORTC) |
| ピン 8 | RC1 — Bidirectional I/O (PORTC) |
| ピン 9 | RC2 — Bidirectional I/O (PORTC) |
| ピン 10 | RC3 — Bidirectional I/O (PORTC) |
| ピン 11 | RC4 — Bidirectional I/O (PORTC) |
| ピン 12 | RC5 — Bidirectional I/O (PORTC) |
| ピン 13 | VSS — Ground reference |
| ピン 14 | RC6 — Bidirectional I/O (PORTC) |
| ピン 15 | RC7 — Bidirectional I/O (PORTC) |
| ピン 16 | RB4 — Bidirectional I/O (PORTB) |
| ピン 17 | RB5 — Bidirectional I/O (PORTB) |
| ピン 18 | RB6/ICDCLK — Bidirectional I/O, ICD clock |
| ピン 19 | RB7/ICDDAT — Bidirectional I/O, ICD data |
| ピン 20 | VDD — Positive supply voltage (1.8V to 3.6V) |
主な用途
PIC16LF1508-E/SO の用途: 7 件s: Battery-Powered IoT Sensor Nodes, LED Lighting and Dimming Controllers, Consumer Appliance User Interfaces, Capacitive-Touch Control Panels, Low-Cost Motor Control (Brushed DC / Stepper), Industrial Sensor Transmitters (4-20mA / 0-10V), Hobby Electronics and Maker Projects.
Battery-Powered IoT Sensor Nodes
The PIC16LF1508-E/SO is well-suited to coin-cell-powered wireless sensor nodes because its XLP technology delivers nanoamp sleep current at 1.8V-3.6V, while the integrated 10-bit ADC with internal FVR handles thermistor, photodiode, and battery-voltage measurements without external signal conditioning. The NCO and CLC peripherals generate low-jitter clock or PWM signals during active sense windows, and the WWDT guards unattended deployments. Versus a discrete op-amp + supervisor solution, this 20-pin SOIC part replaces 2-3 ICs, shrinks the BOM and lets a CR2032 cell power a node for several years per Microchip XLP characterization data.
おすすめ
LED Lighting and Dimming Controllers
The PIC16LF1508-E/SO's Complementary Waveform Generator (CWG) drives half-bridge and full-bridge MOSFET topologies for LED string drivers, while the NCO and PWM/SCCP modules deliver high-resolution dimming without CPU cycles. Operating from 1.8V-3.6V lets the MCU run directly from a buck-converter output without an LDO. The 18 I/O pins easily accommodate multiple LED channels, a rotary encoder, and a capacitive-touch interface. The extended -40 C to +125 C temperature grade supports commercial and architectural luminaires where ambient temperature rises above 85 C inside the fixture housing.
おすすめ
Consumer Appliance User Interfaces
In washing machines, coffee makers, and small kitchen appliances, the PIC16LF1508-E/SO handles a 4-7 segment LCD or LED display, capacitive-touch buttons via the CLC, and rotary encoders via Timer1 capture. The 10-bit ADC reads NTC temperature sensors and potentiometers for variable-speed fans, while the PWM module drives solenoids and buzzers. The extended temperature grade supports appliance interiors where temperatures reach +105 C during operation. Compared to a 32-bit ARM Cortex-M0 alternative, this 8-bit PIC delivers lower active current, simpler toolchain (MPLAB X), and a smaller code footprint for state-machine-driven UIs.
おすすめ
Capacitive-Touch Control Panels
The PIC16LF1508-E/SO's Configurable Logic Cells (CLC) and 10-bit ADC enable hardware-based capacitive-touch sensing with wake-on-touch interrupt capability. The NCO drives the touch excitation frequency and the ADC samples the electrode response, all without CPU intervention, allowing the core to remain in XLP sleep until a finger is detected. The 1.8V-3.6V supply lets the part run from a coin-cell or 2xAA battery pack. According to Microchip application notes, mTouch implementations on this family can achieve sub-10uA average current on a multi-button control panel.
おすすめ
Low-Cost Motor Control (Brushed DC / Stepper)
For brushed DC and small stepper motor control, the PIC16LF1508-E/SO's CWG generates complementary PWM with dead-band control, while the ADC reads back-EMF or current-sense signals for closed-loop speed regulation. The 18 I/O pins easily handle two motor phases, an encoder input, and fault signals. The 20MHz instruction rate delivers a 200ns PID loop period, fast enough for hobby servo and small fan control. Industrial applications can leverage the -40 C to +125 C extended grade.
おすすめ
Industrial Sensor Transmitters (4-20mA / 0-10V)
The PIC16LF1508-E/SO is suitable for loop-powered industrial sensor transmitters because of its 1.8V minimum supply and ultra-low sleep current. The 10-bit ADC digitizes the sensor bridge output, the PWM drives a current-loop DAC via an external op-amp, and the WWDT detects firmware hangs. The extended -40 C to +125 C temperature grade supports process-industry environments. The internal FVR provides a ratiometric reference independent of supply, improving measurement accuracy across the loop-power voltage range.
おすすめ
Hobby Electronics and Maker Projects
Makers and students benefit from the PIC16LF1508-E/SO's small SOIC-20 footprint, free MPLAB X IDE, MPLAB Xpress cloud toolchain, and PICkit programmer support. The CLC and NCO peripherals are uncommon in low-cost MCUs, making this part a teaching platform for advanced digital logic and frequency synthesis concepts. With 7KB of flash it fits simple RTOS demos, USB HID bridges (when paired with PIC16LF1458), and sensor fusion prototypes. The 1.8V minimum supply makes it breadboard-friendly with 2xAA or 2xAAA battery packs.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: PIC16LF1508-E/SO — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | PIC16F1508-E/SO | PIC16LF1508-I/SO | PIC16F1508-I/SO | PIC16LF1507-I/SO |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-pin SOIC | 20-pin SOIC (same) | 20-pin SOIC (same) | 20-pin SOIC (same) | 20-pin SOIC (same) |
| Operating Voltage | 1.8V to 3.6V | 2.3V to 5.5V | 1.8V to 3.6V (same) | 2.3V to 5.5V | 1.8V to 3.6V (same) |
| Flash Memory | 7 KB | 7 KB (same) | 7 KB (same) | 7 KB (same) | 3.5 KB |
| Data RAM | 256 B | 256 B (same) | 256 B (same) | 256 B (same) | 128 B |
| Maximum CPU Clock | 20 MHz | 20 MHz (same) | 20 MHz (same) | 20 MHz (same) | 20 MHz (same) |
| Temperature Grade | -40 C to +125 C (Extended) | -40 C to +125 C (Extended, same) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
| ADC | 10-bit, 18 ch | 10-bit, 18 ch (same) | 10-bit, 18 ch (same) | 10-bit, 18 ch (same) | 10-bit, 12 ch |
| CLC / NCO / CWG | Yes / Yes / Yes | Yes / Yes / Yes (same) | Yes / Yes / Yes (same) | Yes / Yes / Yes (same) | Yes / Yes / Yes |
| Approx. Unit Price @ 1k (USD) | 0.58 | 0.62 | 0.55 | 0.59 | 0.50 |
主な差別化要因
- XLP nanoamp sleep current for coin-cell designs （vs PIC16F1508-E/SO)
- Extended temperature range for harsh environments （vs PIC16LF1508-I/SO)
- Integrated CLC/NCO/CWG peripherals reduce BOM （vs PIC16LF1507-I/SO)
設計ノート
PIC16LF1508-E/SO VDD must be regulated within 1.8V-3.6V. Place a 100nF decoupling capacitor as close to the VDD pin (pin 20) as possible, plus a 10uF bulk capacitor on the same rail. For battery-powered designs, use the LF process variant and put unused I/O pins in output-low state to minimize current. The device includes a Brown-out Reset (BOR) that holds the MCU in reset if VDD drops below threshold; configure BOR via configuration bits at programming time.
The 20-pin SOIC package has a low thermal resistance (theta_JA approx 70 C/W on a standard 2-layer JEDEC board). At 20MHz active with all peripherals running, active current is typically a few mA and self-heating is negligible (<5 C). However, designers should still avoid routing high-current traces under the SOIC-20 land pattern to keep the silicon die temperature uniform. The -40 C to +125 C extended grade covers most industrial enclosures without derating.
Reserve pins RA0 (ICSPDAT) and RA1 (ICSPCLK) for in-circuit serial programming by routing them to an ICSP header. Pin 1 / RA3 is not the ICSP clock; always consult the Microchip datasheet pinout diagram before laying out the PCB. The MCLR/RA5 pin (pin 3) requires a 10k pull-up to VDD for normal operation, unless the MCLR function is disabled in configuration bits. Add a 100nF cap on the VDD trace near the MCU and avoid placing traces that switch high-current near the ICSP lines to preserve programming margins.
Do not power the PIC16LF1508-E/SO above 3.6V - the LF process is not 5V tolerant and overvoltage can permanently damage the silicon. If your design requires 5V tolerance, switch to the PIC16F1508 (2.3V-5.5V). Configuration bits must be set correctly at programming time: enable the internal oscillator for stand-alone operation, disable the watchdog unless intentionally used, and configure the MCLR pin function. Finally, when migrating from PIC16F to PIC16LF, remember that the LF part's ADC reference and oscillator trim values differ slightly - do not reuse a PIC16F1508 configuration bit image.
コンプライアンス情報
RoHS compliant per Microchip product page; not AEC-Q100 qualified - choose PIC16F1508 or PIC16LF1508 automotive-grade variants (separate ordering codes) for AEC-Q100 requirements.
