PIC16LF1847-E/MV - 14KB Flash 28-pin XLP MCU | Microchip
料号： PIC16LF1847-E/MV ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.85 | $3.85 |
| 10 | $3.52 | $35.20 |
| 100 | $3.05 | $305.00 |
| 500 | $2.74 | $1,370.00 |
| 1,000 | $2.41 | $2,410.00 |
PIC16LF1847-E/MV 概述
An MCU (microcontroller unit) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile data memory, and peripherals such as timers, ADCs, and communication interfaces. The PIC16 (L)F1847 belongs to the nanoWatt XLP Technology family (XLP = eXtreme Low Power), which targets battery-powered and energy-harvesting applications through aggressive sleep-mode current reduction. Within Microchip's taxonomy, this places the part at the bottom of the PIC16 enhanced mid-range hierarchy, sitting above baseline PIC10/12/16 and below PIC18 and dsPIC architectures.
Key features include a wide 1.8V to 3.6V supply range (LF low-voltage variant), support for 16 I/O pins, integrated ADC, multiple timers, EUSART, MSSP (SPI/I2C), and on-chip voltage reference. NanoWatt XLP technology delivers sleep currents measured in the nanowatt range, enabling years of operation from a single coin cell. The 28-pin UQFN exposed-pad package provides a compact 4x4 mm footprint suitable for space-constrained designs while improving thermal dissipation through the EP.
Architecturally, the device uses a Harvard-style RISC core with separate program and data buses, two full 16-bit File Select Registers (FSRs) for indirect addressing, and a hardware-accumulative Multiply instruction. Compared with the older PIC16F1847 (5V) variant, the LF version trades the wider supply range for lower-voltage operation optimized for 2-cell battery or regulated 3.3V rails.
Typical applications include battery-powered sensor nodes, IoT edge devices, consumer remote controls, low-power industrial monitors, and battery-backed accessories such as wireless thermostats or wearables. Designers favor this part when program memory (14KB) exceeds simpler PIC12/16F alternatives but the full PIC18 footprint is unnecessary.
Design consideration: most PIC16 LF parts require careful oscillator configuration to balance wake-up time against quiescent draw; verify that LF (low-voltage) vs F (full-voltage) variants are not mixed on the same PCB, since 5V inputs will damage the LF device.
This page synthesizes distributor pricing, drop-in alternative MPNs, and practical engineering design notes that complement the manufacturer datasheet and accelerate component selection.
直接替换替代料： PIC16LF1847-E/MV ——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： PIC16LF1847-E/MV （相同外形与封装尺寸） ——差异在于 Package, Program Memory (Flash), Core Architecture, ADC, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
PIC16LF1847-I/MV
✅ 直接替换📋 参考替代料（不在目录中）
PIC16F1847-I/MV
✅ 直接替换📋 参考替代料（不在目录中）
PIC16LF1847T-I/MV
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$1.82 / 个
查看数据手册 →PIC16F1847-E/MV
✅ 直接替换📋 参考替代料（不在目录中）
PIC16LF1787-E/MV
✅ 直接替换✓ 有现货
$2.61 / 个
查看数据手册 →PIC16LF1826-E/MV
✅ 直接替换✓ 有现货
$0.95 / 个
查看数据手册 →PIC16LF1847-E/MV 最大额定值与电气特性
| Core Architecture | 8-bit PIC16 enhanced mid-range RISC |
| Instruction Set Size | 49 instructions |
| Stack Levels | 16 |
| Program Memory (Flash) | 14 KB |
| RAM | 1 KB |
| Maximum CPU Frequency | 32 MHz (internal oscillator) |
| Supply Voltage Range | 1.8 V to 3.6 V |
| I/O Pins | 16 |
| 封装 | 28-pin UQFN with exposed pad (MV) |
| 安装类型 | Surface Mount |
| Low-Power Technology | nanoWatt XLP |
| Communication Peripherals | EUSART, MSSP (SPI / I2C) |
| 工作温度 | -40C to +125C |
| RoHS 状态 | Compliant |
PIC16LF1847-E/MV 引脚配置
| 引脚 1 | RA0 — PORTA I/O / analog input |
| 引脚 2 | RA1 — PORTA I/O / analog input |
| 引脚 3 | RA2 — PORTA I/O / analog input |
| 引脚 4 | RA3 — PORTA I/O / analog input |
| 引脚 5 | RA4 — PORTA I/O |
| 引脚 6 | RA5 — PORTA I/O |
| 引脚 7 | RA6 — PORTA I/O |
| 引脚 8 | RA7 — PORTA I/O / oscillator |
| 引脚 9 | VSS — Ground |
| 引脚 10 | VDD — Positive supply |
| 引脚 11 | RB0 — PORTB I/O / interrupt-on-change |
| 引脚 12 | RB1 — PORTB I/O / interrupt-on-change |
| 引脚 13 | RB2 — PORTB I/O / interrupt-on-change |
| 引脚 14 | RB3 — PORTB I/O / interrupt-on-change |
| 引脚 15 | RB4 — PORTB I/O / interrupt-on-change |
| 引脚 16 | RB5 — PORTB I/O / interrupt-on-change |
| 引脚 17 | RB6 — PORTB I/O / ICSPCLK |
| 引脚 18 | RB7 — PORTB I/O / ICSPDAT |
| 引脚 19 | RC0 — PORTC I/O |
| 引脚 20 | RC1 — PORTC I/O |
| 引脚 21 | RC2 — PORTC I/O |
| 引脚 22 | RC3 — PORTC I/O |
| 引脚 23 | RC4 — PORTC I/O |
| 引脚 24 | RC5 — PORTC I/O |
| 引脚 25 | RC6 — PORTC I/O / TX |
| 引脚 26 | RC7 — PORTC I/O / RX |
| 引脚 27 | VSS — Ground (additional) |
| 引脚 28 | VDD — Positive supply (additional) |
典型应用
PIC16LF1847-E/MV 适用于 6 应用s: Battery-Powered Sensor Node, IoT Edge Device Controller, Consumer Remote Control, Low-Power Industrial Monitor, Wearable Health Accessory, Battery-Backed Wireless Thermostat.
Battery-Powered Sensor Node
The PIC16LF1847-E/MV is well suited to battery-powered sensor nodes because its nanoWatt XLP technology drives sleep-mode current down into the nanowatt range, enabling multi-year operation from a single CR2032 coin cell. The wide 1.8 V to 3.6 V supply range accommodates depleted-cell scenarios without brown-out resets. With 14 KB Flash and 1 KB RAM, the MCU comfortably fits a simple sensor driver plus a transmit-side protocol stack. Placed between the battery and the sensor/analog front-end, the MCU's ultra-low sleep current makes it ideal for periodic sampling and radio duty-cycling.
推荐
IoT Edge Device Controller
For IoT edge devices that need local control plus wireless handoff, the PIC16LF1847-E/MV offers 16 I/O pins, EUSART, and MSSP (SPI/I2C) to drive sensors and a low-power radio module. The 32 MHz internal oscillator provides enough headroom for protocol processing without an external crystal, lowering BOM cost. Its small UQFN-28 footprint fits inside wearables, smart-home sensor pads, and asset trackers. Pair with a sub-GHz or BLE module over UART for a complete edge node.
推荐
Consumer Remote Control
In battery-powered remote controls for consumer electronics, the PIC16LF1847-E/MV's low-voltage range (1.8 V to 3.6 V) supports direct 2xAAA or coin-cell operation. Its low sleep current preserves battery life between button presses, while the 32 MHz core wakes quickly for IR or RF transmit bursts. The UQFN-28 footprint allows slim-line PCB layouts for handheld form factors. Designers benefit from internal pull-ups and interrupt-on-change for matrix keypads.
推荐
Low-Power Industrial Monitor
Industrial monitoring applications such as battery-backed wireless transmitters for flow meters or temperature loggers benefit from the PIC16LF1847-E/MV's combination of XLP low-power mode, 14 KB Flash, and industrial-grade temperature range. The integrated ADC with on-chip voltage reference simplifies analog signal conditioning for sensor bridges. The UQFN-28 package withstands industrial vibration environments and reduces board area versus larger QFP options.
推荐
Wearable Health Accessory
For wearable health accessories like fitness bands, the PIC16LF1847-E/MV's nanoWatt XLP technology enables days-long battery life in a compact UQFN-28 footprint. Its 1.8 V minimum supply supports direct Li-ion battery operation without an additional LDO, and its ADC with on-chip voltage reference simplifies biometric sensor interfaces. The 16 I/O count accommodates low-density heart-rate or motion sensor integration.
推荐
Battery-Backed Wireless Thermostat
The PIC16LF1847-E/MV is a strong fit for battery-backed wireless thermostats where its low sleep current extends battery life across heating seasons. The internal 32 MHz oscillator eliminates an external crystal, and the integrated timers support accurate temperature sampling and duty-cycled radio transmission. The UQFN-28 EP provides thermal dissipation and a compact PCB area for wall-mount form factors. Combined with EUSART and SPI, the MCU interfaces easily with both temperature sensors and sub-GHz radios.
推荐
推荐产品汇总
工程参考数据： PIC16LF1847-E/MV ——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 | PIC16LF1847-I/MV | PIC16F1847-I/MV | PIC16LF1847T-I/MV | PIC16F1847-E/MV | PIC16LF1787-E/MV | PIC16LF1826-E/MV |
|---|---|---|---|---|---|---|---|
| Package | 28-pin UQFN EP (MV) | 28-pin UQFN EP (MV) - same | 28-pin UQFN EP (MV) - same | 28-pin UQFN EP (MV) - same | 28-pin UQFN EP (MV) - same | 28-pin UQFN EP (MV) - same | 28-pin UQFN EP (MV) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Supply Voltage Range | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Low-Power Technology | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP |
关键差异点
- Low-voltage variant optimized for coin-cell batteries （对比 PIC16F1847-E/MV)
- Larger Flash and RAM than smaller LF cousins （对比 PIC16LF1826-E/MV)
- Same footprint as PIC16LF1787 family for migration （对比 PIC16LF1787-E/MV)
设计说明
Brown-out detection (BOR) should be enabled when the device is powered from a battery whose voltage can sag under load. Disable BOR only in applications with external voltage supervision. Estimated: at 32 MHz active current draw of ~5 mA and a CR2030 coin cell rated 220 mAh, worst-case continuous-operation life is ~44 hours, justifying sleep-mode usage for any battery-powered design.
The 28-pin UQFN exposed pad must be soldered to a ground pad of at least 0.5 square inches on the top layer for thermal dissipation and electrical grounding. Place a single via array (4-9 vias) under the EP and stitch ground copper on both top and bottom layers to improve thermal performance and EMI.
Do not apply voltages above 3.6 V to the PIC16LF1847-E/MV (LF variant); the standard PIC16F1847 supports up to 5.5 V. Mixing LF and F variants on the same 5 V rail will damage the LF device. Always verify the voltage suffix before PCB assembly.
ICSP programming pins RB6/ICSPCLK and RB7/ICSPDAT must be accessible on the PCB even if not used in the final application. Include a 2x3 or 1x6 header footprint for in-circuit programming and debugging. Pull-up resistors on RB6/RB7 (~10 kohm) improve noise immunity in electrically noisy environments.
合规信息
RoHS compliant per Microchip product documentation. Not AEC-Q100 qualified; choose PIC16F1847-E/MV Q1 variant or PIC18F equivalent for automotive applications.
