PIC16LF1708-I/SO - 8-Bit 32MHz XLP MCU 7KB Flash | Microchip
部品番号: PIC16LF1708-I/SO ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $1.68 | $1.68 |
| 10 | $1.51 | $15.10 |
| 100 | $1.34 | $134.00 |
| 500 | $1.18 | $590.00 |
| 1,000 | $1.05 | $1,050.00 |
PIC16LF1708-I/SO 概要
In system hierarchy, a microcontroller (MCU) sits at the apex of embedded control, integrating a CPU core, non-volatile program memory, volatile data memory, and mixed-signal peripherals into a single die. Within the PIC16 family tree, the PIC16LF1708 is an enhanced mid-range 8-bit MCU that bridges the gap between legacy baseline PIC12/PIC16 parts and higher-pin PIC18/PIC24 devices, optimized for low-power analog-sensing applications.
Key differentiating features include 18 available I/O pins, multiple serial interfaces (EUSART, I²C/SPI), four 10-bit PWM channels, a wide operating voltage of 1.8 V to 3.6 V, and nanoWatt XLP sleep currents below 100 nA typical. These features collectively position the PIC16LF1708 as a workhorse for battery-powered IoT nodes, sensor hubs, and low-cost consumer appliances.
Architecturally, the PIC16LF1708 uses a 14-bit instruction-word modified Harvard architecture with a 16-level hardware stack and an 8-bit data path. The integrated peripherals operate under the peripheral pin select (PPS) scheme, allowing most digital functions to be remapped to any digital I/O pin—greatly simplifying PCB layout compared with fixed-pin PIC predecessors.
Typical applications include handheld consumer electronics, white goods and HVAC sensor interfaces, IoT edge nodes, capacitive-touch user interfaces using the CVD module, LED lighting controllers, and low-power wireless sensor front-ends when paired with a sub-GHz or BLE radio.
A primary design consideration is supply decoupling: place a 0.1 µF ceramic bypass capacitor within 5 mm of the VDD pin, and a bulk capacitor of at least 1 µF on the same net, to ensure reliable operation during ADC sampling and radio bursts.
This page synthesizes distributor pricing, verified specifications, same-package alternatives, and practical design notes not found in the raw manufacturer datasheet.
ドロップイン代替品: PIC16LF1708-I/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: PIC16LF1708-I/SO （同一形状・フットプリント） — 相違点: Package, ADC, Core Independent Peripherals, Communication Interfaces, Core Architecture.
クイック比較ツール — 並列比較する代替部品を選択:
PIC16F1708-I/SO
✅ ドロップイン✓ 在庫あり
$0.92 / 個
データシートを見る →PIC16LF1709-I/SO
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC16LF1718-I/SO
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$1.77 / 個
データシートを見る →PIC16LF1708-I/P
✅ ドロップイン✓ 在庫あり
$1.05 / 個
データシートを見る →PIC16F1718-I/SO
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$1.3 / 個
データシートを見る →PIC16F1709-I/SO
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$1.38 / 個
データシートを見る →PIC16LF1708-I/SO 最大定格＆電気的特性
| Core Architecture | 8-bit PIC MCU (enhanced mid-range, 14-bit instruction word) |
| Family | PIC® XLP™ 16F, PIC16F170x/171x series |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data RAM | 512 bytes |
| Max CPU Frequency | 32 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V |
| 動作温度範囲 | -40 °C to +85 °C (Industrial) |
| I/O Pins | 18 |
| ADC | 10-bit, multiple channels (peripherally shared via PPS) |
| DAC | 10-bit |
| Comparators | High-speed comparator |
| Op-Amps | Configurable on-chip op-amps |
| PWM Channels | 4 (10-bit) |
| Communication Interfaces | EUSART, I²C, SPI |
| Core-Independent Peripherals | CLC, COG, NCO, ZCD |
| Touch Sensing | mTouch® CVD (Capacitive Voltage Divider) |
| パッケージ | 20-SOIC (0.295" / 7.50 mm body width) |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant |
PIC16LF1708-I/SO ピン構成
| ピン 1 | RA0/AN0/C1IN+/C2IN+/ICSPDAT — Bidirectional I/O; ADC input; comparator input; in-circuit serial programming data |
| ピン 2 | RA1/AN1/C1IN-/C2IN-/ICSPCLK — Bidirectional I/O; ADC input; comparator input; in-circuit serial programming clock |
| ピン 3 | RA2/AN2/C1OUT/C2OUT — Bidirectional I/O; ADC input; comparator output |
| ピン 4 | RA3/MCLR/VPP — Bidirectional I/O; Master Clear (reset) input; programming voltage input |
| ピン 5 | RA4/AN3/T0CKI — Bidirectional I/O; ADC input; Timer0 clock input |
| ピン 6 | RA5/AN4/C2IN+/C1IN-/SS — Bidirectional I/O; ADC input; comparator input; SPI slave select |
| ピン 7 | VSS — Ground reference |
| ピン 8 | RA7/OSC1/CLKIN — Bidirectional I/O; crystal/oscillator input; external clock input |
| ピン 9 | RA6/OSC2/CLKOUT — Bidirectional I/O; crystal/oscillator output; clock output |
| ピン 10 | RC0/SOSCO — Bidirectional I/O; Timer1 secondary oscillator output |
| ピン 11 | RC1/SOSCI — Bidirectional I/O; Timer1 secondary oscillator input |
| ピン 12 | RC2/AN5/OPA1IN+ — Bidirectional I/O; ADC input; op-amp 1 non-inverting input |
| ピン 13 | RC3/AN6/OPA1IN-/OPA1OUT — Bidirectional I/O; ADC input; op-amp 1 inverting input and output (multiplexed) |
| ピン 14 | RC4/AN7 — Bidirectional I/O; ADC input |
| ピン 15 | RC5 — Bidirectional I/O |
| ピン 16 | RC6/AN8 — Bidirectional I/O; ADC input |
| ピン 17 | RC7/AN9 — Bidirectional I/O; ADC input |
| ピン 18 | RB4 — Bidirectional I/O |
| ピン 19 | RB5 — Bidirectional I/O |
| ピン 20 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
主な用途
PIC16LF1708-I/SO の用途: 7 件s: Battery-Powered IoT Sensor Node, Capacitive Touch User Interface, White Goods and HVAC Sensor Interface, LED Lighting Controller, Handheld Consumer Electronics, Industrial Sensor Hub / Edge Node, Low-Power Wireless Sensor Front-End.
Battery-Powered IoT Sensor Node
The PIC16LF1708-I/SO fits battery-powered IoT sensor nodes because its 1.8 V to 3.6 V supply range accepts a single CR2032, AAA, or single-cell Li-ion directly without an external LDO, while the integrated 10-bit ADC samples analog sensors and the on-chip op-amp conditions low-level signals without extra components. The mTouch CVD module also enables capacitive user input on the same die. Designers can chain EUSART/SPI to a sub-GHz radio like the MRF89XA, and the nanoWatt XLP sleep currents below 100 nA extend coin-cell life to multi-year timeframes.
おすすめ
Capacitive Touch User Interface
The PIC16LF1708-I/SO is well-suited for capacitive touch UI in appliances, light switches, and consumer devices thanks to the mTouch CVD module that scans up to 18 touch electrodes through the same 18 digital I/O pins. The CLC and COG modules can trigger buzzer or LED feedback hardware without waking the CPU, reducing latency and power. Operating directly from a 3.3 V rail, the LF variant eliminates the need for a 5 V supply, simplifying PCB layout and BOM cost.
おすすめ
White Goods and HVAC Sensor Interface
In white goods and HVAC systems, the PIC16LF1708-I/SO provides reliable 8-bit control for temperature, humidity, and pressure sensing with its 10-bit ADC and integrated op-amp signal conditioning. The 32 MHz core handles closed-loop PID for fan or compressor control with comfortable headroom. The -40 °C to +85 °C industrial temperature range tolerates appliance under-cabinet environments, and the 20-SOIC package is straightforward to assemble via standard SMT lines for high-volume production.
おすすめ
LED Lighting Controller
LED lighting controllers leverage the PIC16LF1708-I/SO's four 10-bit PWM channels for color-mixing or dimming applications, plus the Configurable Logic Cell (CLC) for hardware-only PWM generation that offloads the CPU. Direct 3.3 V operation eliminates the bulky 5 V rails common in older lighting designs, while the 0.1 % PWM resolution supports flicker-free dimming required by modern human-centric lighting standards. The complementary output generator (COG) drives half-bridges with programmable dead-band control.
おすすめ
Handheld Consumer Electronics
Handheld consumer electronics benefit from the PIC16LF1708-I/SO's small footprint and 1.8 V operation, which directly runs from a single Li-ion cell while driving an LCD or LED display through its serial interface. The 18 I/O pins interface to keypads, displays, and battery gauges, while core-independent peripherals (CLC, COG, ZCD) handle timing-critical tasks in hardware so the CPU spends more time in deep sleep. This makes the LF1708 an excellent fit for remote controls, fitness bands, and personal care devices.
おすすめ
Industrial Sensor Hub / Edge Node
Industrial sensor hubs use the PIC16LF1708-I/SO to aggregate analog inputs over the 10-bit ADC and forward data via I²C/SPI to a gateway or PLC. The wide 1.8 V to 3.6 V supply tolerates industrial 24 V bus regulators, and the -40 °C to +85 °C industrial temperature rating supports factory and outdoor enclosures. ZCD and COG enable zero-crossing detection for AC line monitoring, while CLC off-loads fast-protocol bit-banging without CPU intervention—ideal for edge-of-network aggregators.
おすすめ
Low-Power Wireless Sensor Front-End
Pairing the PIC16LF1708-I/SO with a sub-GHz or BLE transceiver makes an ideal low-power wireless sensor front-end for agricultural, building automation, and asset-tracking applications. The LF variant's 1.8 V operation matches the radio supply, removing the need for an extra LDO. The CLC and NCO modules generate accurate timing references for low-level protocol stacks in hardware, freeing CPU cycles for sensor fusion logic while keeping sleep currents below 100 nA between transmissions.
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: PIC16LF1708-I/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 | PIC16F1708-I/SO | PIC16LF1709-I/SO | PIC16LF1718-I/SO | PIC16LF1708-I/P |
|---|---|---|---|---|---|
| Brand | Microchip Technology | 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 | 20-PDIP - through-hole variant |
| Operating Voltage Range | 1.8 V to 3.6 V | 2.3 V to 5.5 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 |
| Program Memory (Flash) | 7 KB | 7 KB - same | 10 KB (+43%) | 7 KB - same | 7 KB - same |
| Data RAM | 512 bytes | 512 bytes - same | 1 KB (+100%) | 512 bytes - same | 512 bytes - same |
| Max CPU Frequency | 32 MHz | 32 MHz - same | 32 MHz - same | 32 MHz - same | 32 MHz - same |
| Operating Temperature | -40 °C to +85 °C | -40 °C to +85 °C - same | -40 °C to +85 °C - same | -40 °C to +85 °C - same | -40 °C to +85 °C - same |
| Core-Independent Peripherals | CLC, COG, NCO, ZCD | CLC, COG, NCO, ZCD - same | CLC, COG, NCO, ZCD - same | CLC, COG, NCO, ZCD + extra PWM | CLC, COG, NCO, ZCD - same |
主な差別化要因
- Low-voltage LF process (1.8 V to 3.6 V) （vs PIC16F1708-I/SO)
- Core-Independent Peripherals (CLC, COG, NCO, ZCD) （vs PIC16F1708-I/SO)
- mTouch CVD capacitive touch module （vs PIC16F1708-I/SO)
- Same-package upgrade path to 10 KB Flash （vs PIC16LF1718-I/SO)
設計ノート
Place a 0.1 µF ceramic decoupling capacitor within 5 mm of the VDD pin and a bulk capacitor of at least 1 µF on the same net. For battery-powered designs above 100 µA peaks, add a 10 µF tantalum or ceramic on VDD to absorb radio transmit bursts. The LF variant's nanoWatt XLP sleep current (~100 nA typical) requires careful board layout to avoid leakage paths on RA3/MCLR and the I/O pins tied to external pull-ups.
Keep crystal traces short and symmetric; place the load capacitors within 5 mm of the OSC1/OSC2 pins. Use a guard ring around the high-impedance analog inputs (AN0–AN9) routed to the ADC, and route digital signals away from the analog traces. The on-chip op-amp output pin (RC3/AN6) should not share traces with high-frequency digital signals, otherwise op-amp output impedance degrades by ~10%.
Do not exceed 3.6 V on VDD of the LF variant—transients above this latch up the part. Avoid leaving ICSPDAT/ICSPCLK floating during run-time; tie them to VDD through 10 kΩ resistors to prevent spurious programming-mode entry. The 10-bit ADC accuracy depends on adequate acquisition time: at 32 MHz Fosc use at least 4 µs TACQ to avoid 1-LSB errors at full-scale conversion.
Estimated: when using the EUSART at 115,200 baud with a 32 MHz Fosc, the BRG register error is +0.16% (well within 2% UART error budget). For SPI at 8 MHz master mode with long PCB traces (>50 mm), insert a 33 Ω series resistor near SCK to dampen ringing. The CLC and NCO peripherals can offload timing-critical logic, freeing the CPU to remain in sleep for additional power savings.
コンプライアンス情報
RoHS compliant per Microchip product page and JLCPCB component listing. AEC-Q100 is not applicable for this industrial-grade MCU; AEC-Q100 equivalent variants exist in the PIC16F17x automotive family.
