PIC16LF1847-E/MV - 14KB Flash 28-pin XLP MCU | Microchip
MPN： PIC16LF1847-E/MV ✓ 啟用中PIC16LF1847-E/MV 概覽
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.
直接替換替代品，適用於 PIC16LF1847-E/MV — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC16LF1847-E/MV （相同外形與佔位） — 差異在於 Package, Program Memory (Flash), Core Architecture, ADC, Operating Temperature.
PIC16LF1847-I/MV
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16F1847-I/MV
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16LF1847T-I/MV
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC16F1847-E/MV
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16LF1787-E/MV
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF1826-E/MV
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF1847-E/MV 最大額定值與電氣特性
| 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 |
| 封裝 | 28-pin UQFN with exposed pad (MV) |
| 安裝類型 | Surface Mount |
| Low-Power Technology | nanoWatt XLP |
| Communication Peripherals | EUSART, MSSP (SPI / I2C) |
| 工作溫度 | -40C to +125C |
| RoHS 狀態 | Compliant |
PIC16LF1847-E/MV 腳位配置
| 腳位 1 | RA0 — PORTA I/O / analog input |
| 腳位 2 | RA1 — PORTA I/O / analog input |
| 腳位 3 | RA2 — PORTA I/O / analog input |
| 腳位 4 | RA3 — PORTA I/O / analog input |
| 腳位 5 | RA4 — PORTA I/O |
| 腳位 6 | RA5 — PORTA I/O |
| 腳位 7 | RA6 — PORTA I/O |
| 腳位 8 | RA7 — PORTA I/O / oscillator |
| 腳位 9 | VSS — Ground |
| 腳位 10 | VDD — Positive supply |
| 腳位 11 | RB0 — PORTB I/O / interrupt-on-change |
| 腳位 12 | RB1 — PORTB I/O / interrupt-on-change |
| 腳位 13 | RB2 — PORTB I/O / interrupt-on-change |
| 腳位 14 | RB3 — PORTB I/O / interrupt-on-change |
| 腳位 15 | RB4 — PORTB I/O / interrupt-on-change |
| 腳位 16 | RB5 — PORTB I/O / interrupt-on-change |
| 腳位 17 | RB6 — PORTB I/O / ICSPCLK |
| 腳位 18 | RB7 — PORTB I/O / ICSPDAT |
| 腳位 19 | RC0 — PORTC I/O |
| 腳位 20 | RC1 — PORTC I/O |
| 腳位 21 | RC2 — PORTC I/O |
| 腳位 22 | RC3 — PORTC I/O |
| 腳位 23 | RC4 — PORTC I/O |
| 腳位 24 | RC5 — PORTC I/O |
| 腳位 25 | RC6 — PORTC I/O / TX |
| 腳位 26 | RC7 — PORTC I/O / RX |
| 腳位 27 | VSS — Ground (additional) |
| 腳位 28 | VDD — Positive supply (additional) |
典型應用
PIC16LF1847-E/MV 適用於 6 應用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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16LF1847-E/MV — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | 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 |
主要差異化特點
- Low-voltage variant optimized for coin-cell batteries (對比PIC16F1847-E/MV)
- Larger Flash and RAM than smaller LF cousins (對比PIC16LF1826-E/MV)
- Same footprint as PIC16LF1787 family for migration (對比PIC16LF1787-E/MV)
設計說明
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.
合規資訊
RoHS compliant per Microchip product documentation. Not AEC-Q100 qualified; choose PIC16F1847-E/MV Q1 variant or PIC18F equivalent for automotive applications.
