PIC16LF1704T-I/SL - 8-Bit 32MHz XLP MCU, 4KB Flash | Microchip
料号： PIC16LF1704T-I/SL ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.66 | $16.60 |
| 100 | $1.48 | $148.00 |
| 500 | $1.32 | $660.00 |
| 1,000 | $1.18 | $1,180.00 |
| 2,600 | $1.05 | $2,730.00 |
PIC16LF1704T-I/SL 概述
An 8-bit microcontroller is a single-chip computer built around an 8-bit data path, popular in embedded control because the architecture is simple, deterministic, and supported by extensive firmware libraries. Within the broader taxonomy, the PIC16LF1704 belongs to PIC microcontrollers -> 8-bit MCUs -> microcontrollers -> microprocessors and microcontrollers -> semiconductors. The 'LF' prefix denotes a wide-voltage 'F' core optimized for low-voltage operation, while XLP technology targets battery-powered products with nanoWatt sleep currents.
Key differentiating features include the integrated 8-bit DAC (rare on 14-pin MCUs), Core Independent Peripherals (CIPs) such as the Complementary Waveform Generator (CWG) and Configurable Logic Cell (CLC), 32 MHz operation with 125 ns instruction cycle, and an enhanced mid-range 14-bit instruction set that improves code density over legacy baseline PIC16 cores. The 14-pin SOIC package offers hand-solder-friendly leads while still fitting compact designs.
Typical applications include LED lighting controllers (using CWG and DAC for smooth dimming), sensor signal conditioning (using the on-chip op-amps and ADC), battery-powered IoT nodes (using XLP sleep modes), and consumer white-goods user interfaces. The combination of small footprint, on-board analog, and low-power modes makes the PIC16LF1704 particularly attractive for cost-sensitive analog/mixed-signal front-end designs.
When designing with this part, plan the oscillator configuration early (the internal 16 MHz HFINTOSC eliminates the need for external crystals in most cases) and reserve one DAC channel for reference generation if your analog signal chain needs a stable bias. The 14-pin SOIC package also requires careful PCB layout to route both analog and digital grounds separately.
This page synthesizes distributor pricing across multiple channels, drop-in alternative part numbers from the same PIC16LF1704 family, and practical design notes not consolidated in the manufacturer datasheet — helping procurement and engineering teams make faster, better-informed decisions.
直接替换替代料： PIC16LF1704T-I/SL ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC16LF1704T-I/SL （相同外形与封装尺寸） ——差异在于 Package, ADC, DAC, Comparators, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
PIC16LF1704-I/SL
✅ 直接替换✓ 有现货
$0.92 / 个
查看数据手册 →PIC16LF1704T-I/ML
✅ 直接替换✓ 有现货
$0.72 / 个
查看数据手册 →PIC16LF1704-E/SL
✅ 直接替换✓ 有现货
$0.82 / 个
查看数据手册 →PIC16LF1704-E/P
✅ 直接替换✓ 有现货
$0.79 / 个
查看数据手册 →PIC16LF1703-E/P
✅ 直接替换✓ 有现货
$0.65 / 个
查看数据手册 →PIC16LF1704-E/ML
✅ 直接替换✓ 有现货
$1.04 / 个
查看数据手册 →PIC16LF1704T-I/SL 最大额定值与电气特性
| Core Architecture | PIC 8-bit Enhanced Mid-Range |
| Family | PIC16F170x / PIC16LF170x (XLP) |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data SRAM | 512 B |
| Maximum CPU Clock | 32 MHz |
| Instruction Cycle | 125 ns (at 32 MHz) |
| Operating Voltage Range | 1.8 V to 3.6 V (LF variant) |
| I/O Pins | 12 |
| ADC | 10-bit, 8-channel |
| DAC | 8-bit, 1-channel |
| Comparators | Yes (high-speed) |
| Op-Amps | Yes (on-chip) |
| Timers | 8-bit and 16-bit (multiple) |
| CWG / CLC / PWM | Yes (CIP peripherals) |
| Communication | I2C, SPI, EUSART |
| 封装 | 14-SOIC (0.154", 3.90 mm width) |
| 工作温度 | -40C to +85C (Industrial) |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
PIC16LF1704T-I/SL 引脚配置
| 引脚 1 | VDD — Positive power supply |
| 引脚 2 | RA5 — GPIO / DAC output / CWG input |
| 引脚 3 | RA4 — GPIO / T0CKI / comparator output |
| 引脚 4 | RA3/MCLR/VPP — GPIO / Master Clear (Reset) / programming voltage |
| 引脚 5 | RC5 — GPIO / RX/DT (EUSART) / CCP1 |
| 引脚 6 | RC4 — GPIO / TX/CK (EUSART) / CWG output |
| 引脚 7 | RC3 — GPIO / SCL (I2C) / SCK (SPI) |
| 引脚 8 | RC2 — GPIO / SDA (I2C) / SDI (SPI) |
| 引脚 9 | RC1 — GPIO / SDO (SPI) / CCP2 |
| 引脚 10 | RC0 — GPIO / SOSCO / PWM |
| 引脚 11 | RA2 — GPIO / analog input AN2 / op-amp output |
| 引脚 12 | RA1 — GPIO / analog input AN1 / op-amp inverting input / ICSPCLK |
| 引脚 13 | RA0 — GPIO / analog input AN0 / ICSPDAT |
| 引脚 14 | VSS — Ground reference |
典型应用
PIC16LF1704T-I/SL 适用于 6 应用s: LED Lighting Dimming Controller, Battery-Powered Wireless Sensor Node, Sensor Signal Conditioning Front-End, Consumer Appliance User Interface, Hobbyist and Educational Development Platform, Industrial Control Module.
LED Lighting Dimming Controller
The PIC16LF1704T-I/SL is an ideal LED lighting dimming controller thanks to its integrated 8-bit DAC, Complementary Waveform Generator (CWG), and Configurable Logic Cell (CLC). The DAC generates smooth analog reference levels (0-255 steps) that feed the CWG to produce phase-correct PWM outputs with no CPU overhead. With 32 MHz operation, the PWM resolution can exceed 10 bits at 1 kHz refresh rate, eliminating visible flicker. The XLP nanoWatt sleep mode drops quiescent current below 1 uA between dim commands, perfect for battery-powered LED fixtures. Place the MCU on a 14-SOIC footprint with the DAC output driving the CWG, and route PWM outputs directly to MOSFET gate drivers.
推荐
Battery-Powered Wireless Sensor Node
For IoT wireless sensor nodes, the PIC16LF1704T-I/SL's XLP nanoWatt technology delivers sleep currents below 1 uA while preserving RAM, enabling multi-year battery life on a single coin cell. The 10-bit 8-channel ADC reads multiple sensors (temperature, light, motion) sequentially, while the on-chip op-amp conditions weak analog signals before digitization. SPI connects directly to a sub-GHz transceiver like the MRF89XA. The 14-SOIC package fits within 10x10 mm sensor node PCBs. Power dissipation peaks at 12 mW active; average around 5 uA in 1% duty-cycled operation.
推荐
Sensor Signal Conditioning Front-End
The PIC16LF1704T-I/SL excels at sensor signal conditioning with its on-chip operational amplifiers that buffer weak analog signals before the 10-bit ADC. A thermistor bridge can be amplified directly by the on-chip op-amp, with the ADC sampling at 100 kS/s and the DAC providing offset cancellation. The 14-SOIC package keeps the analog and digital grounds separate via split-pin layout. Compared to discrete op-amp + ADC + MCU solutions, this integrated approach reduces BOM cost by 30-40%. The LF variant operates from 1.8 V, ideal for 2-cell AA or single Li-ion battery powered instrumentation.
推荐
Consumer Appliance User Interface
The PIC16LF1704T-I/SL drives consumer appliance user interfaces using its CLC to debounce mechanical buttons in hardware, freeing the CPU to manage display refresh and serial communication. The 8-bit DAC controls indicator LED brightness via a single PWM channel, while the 10-bit ADC reads capacitive touch or potentiometer inputs. At $1.18 per unit in 1000-piece reels per 2026-09-23 pricing, it is cost-effective for high-volume white goods. The industrial -40C to +85C temperature range supports refrigerator, washing machine, and oven environments.
推荐
Hobbyist and Educational Development Platform
The PIC16LF1704T-I/SL is well-suited as a hobbyist and educational platform because it combines a 14-SOIC hand-solderable package with rich on-chip peripherals (DAC, op-amps, comparators) rarely found on entry-level MCUs. Students learn ADC, DAC, PWM, and CIP configuration without external components. The PICkit 5 in-circuit debugger/programmer supports it natively via the MPLAB X IDE ecosystem. Per distributor listings, single-unit pricing at $1.85 makes it accessible for classroom use; volume pricing drops below $1.20 per unit at 1000-piece reels.
推荐
Industrial Control Module
In industrial control modules, the PIC16LF1704T-I/SL's high-speed comparators and CWG peripherals enable motor control, over-current detection, and zero-cross switching without external logic ICs. The 32 MHz clock and 125 ns instruction cycle support real-time deterministic control loops. The on-chip DAC generates 0-3.3V reference voltages for 4-20 mA loop calibration. RS-485 communication via EUSART supports industrial networking protocols. At 1.8 V minimum supply, it operates from unregulated 24 V industrial bus via a small LDO; the -40C to +85C industrial temperature range supports most factory floor environments.
推荐
推荐产品汇总
工程参考数据： PIC16LF1704T-I/SL ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC16LF1704-I/SL | PIC16LF1704T-I/ML | PIC16LF1704-E/SL | PIC16LF1703-E/P |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-SOIC (SL) | 14-SOIC (SL) - same | QFN-16 (ML) - different footprint | 14-SOIC (SL) - same | PDIP-14 (P) - different footprint |
| Flash Memory | 7 KB (4K x 14) | 7 KB | 7 KB | 7 KB | 3.5 KB |
| SRAM | 512 B | 512 B | 512 B | 512 B | 256 B |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Temperature Grade | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) |
| ADC Channels | 8 | 8 | 8 | 8 | 8 |
| DAC | 8-bit, 1-channel | 8-bit, 1-channel | 8-bit, 1-channel | 8-bit, 1-channel | No DAC |
| Qty-1 Price (USD, as of 2026-09-23) | 1.85 | 1.85 | 1.95 | 2.10 | 1.50 |
关键差异点
- Integrated 8-bit DAC on a 14-pin 8-bit MCU （对比 PIC16LF1703-E/P)
- Wider low-voltage operating range (1.8 V vs 2.3 V) （对比 PIC16F1704 (standard F variant))
- Tape-and-reel packaging for automated SMT assembly （对比 PIC16LF1704-I/SL)
设计说明
The PIC16LF1704T-I/SL's XLP nanoWatt technology enables sleep currents below 1 uA when properly configured. To achieve this, disable all unused peripherals via PMD registers, set unused I/O pins to outputs driving low, and select the LFINTOSC low-power oscillator as the system clock during sleep. Place a 0.1 uF decoupling capacitor within 5 mm of the VDD pin and a 10 uF bulk capacitor near the regulator output. The internal 16 MHz HFINTOSC eliminates external crystal power draw for most designs.
For the 14-SOIC package, allocate at least 0.5 mm clearance between adjacent traces to maintain creepage, and use a 4-layer stackup with a dedicated ground plane for best analog performance. The exposed lead frame on SOIC packages can act as a thermal via array — connect pin 14 (VSS) to a 1 cm^2 ground pour for improved thermal dissipation. For mixed-signal designs, partition the PCB into analog (left of MCU) and digital (right of MCU) zones, joining ground planes only at the MCU VSS pin (single-point star ground).
Three common pitfalls to avoid: (1) Do not leave the MCLR/RAO pin unconnected — tie to VDD via a 10 kOhm pull-up, or to VDD directly if unused, to prevent spurious resets. (2) Do not skip the 0.1 uF bypass capacitor on VDD — the ADC accuracy degrades by 1-2 LSB without proper decoupling. (3) Do not exceed 32 MHz CPU clock — wait states are required above this frequency, but the LF variant is not specified for 5 V operation, so 3.3 V is the safe operating ceiling. Always read the PIC16F1704 errata sheet before designing production firmware.
合规信息
RoHS and REACH compliant per Microchip product page. Lead-free Pb-free assembly supported. AEC-Q100 not qualified — for automotive applications, use AEC-Q100-qualified variants from Microchip.
