PIC16LF1847T-I/SO - 8-bit MCU, 14KB Flash, 32MHz | Microchip
MPN: PIC16LF1847T-I/SO ✓ Hoạt độngPIC16LF1847T-I/SO Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash), volatile data memory (RAM), and a rich set of peripheral blocks. The PIC16 family is part of Microchip's legacy 8-bit portfolio, sitting between the baseline PIC10/12/16 families and the higher-performance PIC18 line, and is widely used in cost-sensitive, low-power, and mixed-signal embedded designs. PIC MCUs use a Harvard RISC architecture with a small, deterministic instruction set optimized for compact code generation and predictable interrupt latency.
The device operates from a wide 1.8V to 3.6V supply, supports internal oscillator frequencies up to 32 MHz, and includes integrated mTouch capacitive-touch sensing, a 12-channel 10-bit ADC, two comparators, a DAC, PWM, UART/I2C/SPI, and 16 enhanced I/O pins. The 'LF' prefix denotes the low-voltage variant; the 'T' suffix denotes tape-and-reel packaging; 'I' indicates the industrial -40C to +85C temperature range.
Key features include 49 instructions, a 16-level hardware stack with overflow/underflow reset, automatic context saving on interrupts, and on-board debug via PICkit 3 / MPLAB ICD 3. Typical applications include capacitive-touch user interfaces, sensor signal conditioning, low-power battery monitoring, and small home-appliance control boards.
Bộ thay thế dễ dàng lắp đặt cho PIC16LF1847T-I/SO — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16LF1847T-I/SO (cùng hình factor và footprint) — khác nhau ở Package, Program Memory (Flash), I/O Pins, Operating Temperature, ADC.
PIC16LF1847-I/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F1847T-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1827T-I/SO
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16LF1829T-I/SO
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF1847T-I/SO Tỷ lệ tối đa & tính chất điện
| Family | PIC16F/LF184x |
| Core | PIC16 enhanced mid-range 8-bit |
| Instruction Set | 49 instructions |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data RAM | 1 KB |
| Data EEPROM | 256 bytes |
| Max CPU Frequency | 32 MHz |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| I/O Pins | 16 |
| ADC | 12-channel, 10-bit |
| Comparators | 2 |
| Hộp | 18-pin SOIC (SOIC-18, 7.50 mm width) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| Technology | nanoWatt XLP (eXtreme Low Power) |
| Cấp MSL | 1 |
| Trạng thái RoHS | Compliant |
| Packaging | Tape & Reel |
Cấu hình chân PIC16LF1847T-I/SO
| Chân 1 | RA3/MCLR/VPP — Digital I/O / Master Clear (reset) / Programming voltage |
| Chân 2 | RA4/AN3/C1OUT — Digital I/O / Analog input 3 / Comparator 1 output |
| Chân 3 | RA5/AN4/SS/HLVDIN — Digital I/O / Analog input 4 / SPI slave select / HLVD input |
| Chân 4 | RA6/OSC2/CLKOUT — Digital I/O / Crystal oscillator output / CLKOUT |
| Chân 5 | RA7/OSC1/CLKIN — Digital I/O / Crystal oscillator input / CLKIN |
| Chân 6 | VSS — Ground reference |
| Chân 7 | RA0/AN0/C12IN0+ — Digital I/O / Analog input 0 / Comparator 1/2 positive input 0 |
| Chân 8 | RA1/AN1/C12IN1- — Digital I/O / Analog input 1 / Comparator 1/2 negative input 1 |
| Chân 9 | RA2/AN2/C2OUT — Digital I/O / Analog input 2 / Comparator 2 output |
| Chân 10 | RC0/SOSCO/T1CKI — Digital I/O / Secondary oscillator output / Timer1 clock input |
| Chân 11 | RC1/SOSCI/CCP2 — Digital I/O / Secondary oscillator input / Capture/Compare/PWM 2 |
| Chân 12 | RC2/AN6/CCP1 — Digital I/O / Analog input 6 / Capture/Compare/PWM 1 |
| Chân 13 | RC3/AN7/SEG7 — Digital I/O / Analog input 7 / LCD segment 7 |
| Chân 14 | RC4/AN8/SDA/SDI — Digital I/O / Analog input 8 / I2C data / SPI data in |
| Chân 15 | RC5/AN9/SCL/SCK — Digital I/O / Analog input 9 / I2C clock / SPI clock |
| Chân 16 | RC6/AN10/TX/CK — Digital I/O / Analog input 10 / USART TX / USART clock |
| Chân 17 | RC7/AN11/RX/DT — Digital I/O / Analog input 11 / USART RX / USART data |
| Chân 18 | VDD — Positive supply voltage (1.8V to 3.6V) |
Ứng dụng tiêu biểu
PIC16LF1847T-I/SO phù hợp cho 6 Áp dụngs: Capacitive Touch HMI, Battery-Powered Sensor Node, Home Appliance Control Board, LED Lighting Driver Controller, Industrial Sensor Conditioning, Consumer Remote Control.
Capacitive Touch HMI
The PIC16LF1847T-I/SO is well suited for low-power capacitive-touch human-machine interfaces because of its integrated mTouch peripheral, 12-channel 10-bit ADC, and nanoWatt XLP technology. The CVD-based touch acquisition runs through standard I/O pins, allowing up to 16 touch electrodes without external touch ICs, lowering BOM cost. Its 1.8V-3.6V operation makes it ideal for battery-powered remote controls, smart locks, and wearable touch panels. The 14 KB Flash and 1 KB RAM comfortably host a touch-scanning state machine plus simple debounce and gesture logic. Estimated: at 32 MHz active / 1.8V, the device draws ~3 mA, while XLP sleep drops below 1 uA, enabling weeks of standby on a CR2032 coin cell.
Được đề xuất
Battery-Powered Sensor Node
For wireless or wired sensor nodes on coin-cell or 2xAA batteries, the PIC16LF1847T-I/SO offers a sub-3.6V supply range and nanoWatt XLP sleep currents under 1 uA. The integrated 10-bit ADC, two comparators, and 256-byte EEPROM allow direct connection to thermistors, photodiodes, or 4-20 mA loop sensors. With 14 KB Flash and 1 KB RAM, the MCU runs small scheduling loops and stores calibration in EEPROM. Recommended companion ICs include low-power op-amps for signal conditioning and sub-GHz RF transceivers for wireless uplink; the PIC's UART/SPI/I2C peripherals interoperate with all common sensor and radio ICs. Estimated: at 1 sample/second duty cycle, average current is dominated by sensor excitation, not MCU.
Được đề xuất
Home Appliance Control Board
Small home appliances such as coffee makers, air purifiers, and countertop ovens benefit from the PIC16LF1847T-I/SO's robust 16 I/O pins, 32 MHz speed, and PWM/CCP peripherals. The MCU directly drives triac-gate optocouplers, MOSFET gate drivers, and relay coils, while its ADC samples thermistor or pressure-sensor feedback for closed-loop control. With 14 KB Flash, designers can implement PID loops, EEPROM-stored user presets, and simple UI logic on character LCDs or LED ring indicators. The -40C to +85C industrial temperature range supports under-cabinet kitchen environments. Recommended companion ICs include zero-cross triac drivers and isolated AC mains sensing.
Được đề xuất
LED Lighting Driver Controller
The PIC16LF1847T-I/SO suits cost-sensitive LED drivers in architectural, accent, and decorative luminaires. Its PWM module with multiple channels enables smooth dimming via analog or PWM dimming standards, while the 10-bit ADC reads ambient light sensors and potentiometer dim controls. With 14 KB Flash, the device implements dimming curves, color-mixing logic, and DALI or 0-10V protocol handling for commercial fixtures. The wide 1.8V-3.6V supply allows direct operation from a small switching supply or even battery backup. Estimated: at 32 MHz / 3.3V, the MCU easily handles 8+ PWM channels simultaneously. Recommended companions: constant-current LED drivers and I2C-controlled RGB color sensors.
Được đề xuất
Industrial Sensor Conditioning
Factory-floor sensors measuring pressure, flow, or position benefit from the PIC16LF1847T-I/SO's 12-channel 10-bit ADC, two comparators, and hardware-capable PWM for excitation signals. Its 1.8V-3.6V operation tolerates 4-20 mA loop power arrangements when paired with an external LDO or shunt regulator. With 14 KB Flash and 1 KB RAM, the MCU runs moving-average filters, linearization math, and HART or Modbus slave stacks. The -40C to +85C industrial temperature rating ensures operation inside sealed sensor housings. Recommended companions: 4-20 mA loop transmitters, RS-485 transceivers, and precision op-amps for thermocouple/bridge excitation.
Được đề xuất
Consumer Remote Control
IR/RF remote controls for TVs, set-top boxes, and smart-home hubs use the PIC16LF1847T-I/SO because of its nanoWatt XLP technology (sub-uA standby), low-voltage 1.8V-3.6V operation from a single CR2032 or 2xAAA, and small SOIC-18 footprint. The 14 KB Flash supports multiple IR protocols (RC5, NEC, SIRC) or simple RF pairing stacks, while the 1 KB RAM handles button debouncing and rolling-code buffers. The 16 I/O pins accommodate full keypads plus status indicators. Estimated: a remote transmitting a few keystrokes per day can operate 1-3 years on a CR2032 thanks to XLP sleep. Recommended companions: IR emitters, sub-GHz RF transmitters, and piezoelectric buzzers.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LF1847T-I/SO — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC16LF1847-I/SO | PIC16F1847T-I/SO | PIC16LF1827T-I/SO | PIC16LF1829T-I/SO |
|---|---|---|---|---|---|
| Package | SOIC-18 (7.50 mm) | SOIC-18 (7.50 mm) - same | SOIC-18 (7.50 mm) - same | SOIC-18 (7.50 mm) - same | SOIC-18 (7.50 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 14 KB | 14 KB | 14 KB | 7 KB | 14 KB |
| Data RAM | 1 KB | 1 KB | 1 KB | 384 bytes | 1 KB |
| Data EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| Max CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Supply Voltage (VDD) | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 5.5V | 1.8V to 3.6V | 1.8V to 3.6V |
| I/O Pins | 16 | 16 | 16 | 16 | 16 |
| ADC | 12-channel, 10-bit | 12-channel, 10-bit | 12-channel, 10-bit | 12-channel, 10-bit | 12-channel, 10-bit |
Bảo phân biệt quan trọng
- Lowest voltage range with mTouch + 12-bit ADC compatibility (vsPIC16F1847T-I/SO)
- Larger Flash than nearest-cost reduced variant (vsPIC16LF1827T-I/SO)
- mTouch-capable while staying in same SOIC-18 footprint (vsPIC16LF1829T-I/SO)
Ghi chú thiết kế
The PIC16LF1847T-I/SO operates from 1.8V to 3.6V. Add a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 18) and a bulk 10 uF tantalum or ceramic capacitor at the supply rail entry. For battery applications, a series ferrite bead between battery and VDD reduces inrush transients; the nanoWatt XLP technology allows the MCU to enter sleep mode below 1 uA typical when the WDT is disabled.
Pin 1 (RA3/MCLR/VPP) is shared between digital I/O, external reset, and ICSP voltage. If left as digital I/O without configuring MCLRE=0 in configuration words, the device will not start without a proper MCLR pull-up. For low-power applications where MCLR is disabled, ensure configuration word MCLRE=0 is set in code to avoid a floating reset pin. Estimated: an unconfigured MCLR pin can pull >50 uA continuously through internal weak pull-up.
Place the 32.768 kHz crystal (if used for RTCC) within 5 mm of pins 10 (SOSCO) and 11 (SOSCI). Keep high-current switching traces (PWM, LED drivers) away from analog ADC traces (RC2-RC7 in analog mode). Use a ground plane on the bottom layer and route the VDD/VSS traces as wide as possible; the SOIC-18 package has adequate thermal performance for normal MCU operation but no heatsinking is required.
For mTouch capacitive-sensing applications, route the touch electrode traces as short, narrow traces with a ground pour around them; minimize trace-to-trace coupling. Add a 1-2 mm keep-out zone around each touch pad. Per Microchip application notes, ground-fill hatching (rather than solid pour) beneath touch electrodes improves sensitivity consistency across the PCB. Series resistors (1-10 kohm) on touch pins reduce EMI susceptibility.
Thông tin tuân thủ
RoHS compliant per Microchip product page and DigiKey listing. Not AEC-Q100 qualified; choose PIC16F1847-E/SO or PIC16LF1847T-I/SO automotive-grade variants for automotive designs. Industrial temperature grade -40C to +85C.
