PIC16LF1937-I/PT - 8-bit XLP MCU, 14KB Flash, LCD, 44-TQFP
部品番号: PIC16LF1937-I/PT ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.07 | $30.70 |
| 100 | $2.74 | $274.00 |
| 500 | $2.46 | $1,230.00 |
| 1,000 | $2.21 | $2,210.00 |
PIC16LF1937-I/PT 概要
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, peripherals such as ADC, timers, communication interfaces, and I/O pins on one die. Within the broader semiconductor taxonomy, this PIC16LF1937 sits in the hierarchy of 8-bit microcontroller -> RISC microcontroller -> embedded controller -> integrated circuit. The "LF" prefix denotes the low-voltage (1.8-3.6V F-range) variant optimized for battery-powered designs, while the non-LF PIC16F1937 operates from 2.3-5.5V. Microchip's XLP technology enables sleep currents in the nanoamp range, making this MCU suited to always-on applications.
Key features of the PIC16LF1937-I/PT include an integrated LCD driver capable of driving segment displays up to a defined common/segment configuration, an enhanced 14-channel 10-bit ADC, multiple Enhanced USART, SPI, and I2C interfaces, Capture/Compare/PWM modules, and 36 digital I/O pins. The Instruction Set Architecture (ISA) is the standard PIC mid-range 14-bit core, supported by Microchip's MPLAB X IDE, XC8 compiler, and a broad ecosystem of programmers/debuggers including PICkit and ICD.
Architecturally, the device uses a Harvard bus (separate program and data paths) and a RISC-style 49-instruction set, which keeps interrupt latency deterministic and code execution efficient. The integrated LCD driver supports up to 96 segments, allowing direct connection of glass displays without external charge-pump components. On-chip CTMU (Charge Time Measurement Unit) enables touch and proximity sensing applications without external analog front-ends.
Typical applications include low-power battery sensor nodes, medical glucose and portable diagnostic meters, consumer appliances with LCD user interfaces (microwave ovens, washing machines), industrial HMI panels, e-meter and instrumentation clusters, and remote controls. The wide peripheral set and segment-LCD integration reduce BOM cost by eliminating external drivers.
When designing with the PIC16LF1937-I/PT, ensure the 1.8-3.6V supply rail stays within regulation at peak load transients. Decouple VDD with 100nF plus 10uF bulk capacitors placed within a few millimeters of the pins. Use the ICD3 or PICkit 4 for in-circuit debug; both the ICSP PGC/PGD and the dedicated ICSPCLK/ICSPDAT lines are multiplexed on PORTB.
This page combines distributor pricing, drop-in same-package alternatives from Microchip's PIC16 family, design notes, and an AI-optimized FAQ not found in the manufacturer datasheet alone.
ドロップイン代替品: PIC16LF1937-I/PT — 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: PIC16LF1937-I/PT （同一形状・フットプリント） — 相違点: Package, Timers, LCD Driver, Operating Temperature, Program Memory (Flash).
クイック比較ツール — 並列比較する代替部品を選択:
PIC16F1937-I/PT
✅ ドロップイン✓ 在庫あり
$3.1 / 個
データシートを見る →PIC16F1937-E/PT
✅ ドロップイン✓ 在庫あり
$6.0137 / 個
データシートを見る →PIC16LF1936-I/PT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC16LF1934-I/PT
✅ ドロップイン✓ 在庫あり
$2.41 / 個
データシートを見る →PIC16F946-I/PT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC16LF1937-I/PT 最大定格＆電気的特性
| Family | PIC16F |
| Core | 8-bit PIC16 (14-bit instruction word) |
| CPU Speed | 32 MHz |
| Program Memory | 14 KB Flash (8K x 14 words) |
| RAM | 512 bytes |
| EEPROM | 256 bytes |
| I/O Pins | 36 |
| 電源電圧 | 1.8 V to 3.6 V |
| パッケージ | 44-pin TQFP (10 x 10 mm, PT suffix) |
| 実装タイプ | Surface Mount |
| 動作温度 | -40 C to +85 C (Industrial, "I" grade) |
| ADC | 10-bit, 14 channels |
| LCD Driver | Yes, integrated segment driver up to 96 segments |
| Communication | EUSART, I2C, SPI |
| Timers | 4 x 8-bit, 1 x 16-bit |
| PWM Modules | Enhanced CCP, multiple PWM outputs |
| CTMU | Charge Time Measurement Unit (touch/proximity) |
| XLP Technology | nanoWatt eXtreme Low Power |
| RoHS ステータス | Compliant |
PIC16LF1937-I/PT ピン構成
| ピン 1 | RE3/MCLR/VPP — Input only; Master Clear (reset) / programming voltage |
| ピン 2 | RA0 — PORTA bit 0 / AN0 / SEG12 |
| ピン 3 | RA1 — PORTA bit 1 / AN1 / SEG7 |
| ピン 4 | RA2 — PORTA bit 2 / AN2 / VREF- |
| ピン 5 | RA3 — PORTA bit 3 / AN3 / VREF+ / SEG15 |
| ピン 6 | RA4 — PORTA bit 4 / AN4 / T0CKI / SEG4 |
| ピン 7 | RA5 — PORTA bit 5 / AN5 / SEG5 |
| ピン 8 | RA6 — PORTA bit 6 / OSCCLKOUT / SEG1 |
| ピン 9 | RA7 — PORTA bit 7 / OSC1 / CLKIN / SEG2 |
| ピン 10 | OSC2/RA8 — PORTA bit 8 / OSC2 / CLKOUT / SEG0 |
| ピン 11 | VDD — Positive supply voltage |
| ピン 12 | VSS — Ground reference |
| ピン 13 | RB0 — PORTB bit 0 / AN12 / INT0 / SEG30 |
| ピン 14 | RB1 — PORTB bit 1 / AN10 / SEG8 |
| ピン 15 | RB2 — PORTB bit 2 / AN8 / SEG9 |
| ピン 16 | RB3 — PORTB bit 3 / AN9 / SEG10 / CCP2 |
| ピン 17 | RB4 — PORTB bit 4 / AN11 / SEG11 / KBI0 |
| ピン 18 | RB5 — PORTB bit 5 / SEG28 / KBI1 |
| ピン 19 | RB6 — PORTB bit 6 / ICSPCLK / SEG29 / KBI2 |
| ピン 20 | RB7 — PORTB bit 7 / ICSPDAT / SEG3 / KBI3 |
| ピン 21 | RC0 — PORTC bit 0 / AN16 / SEG32 |
| ピン 22 | RC1 — PORTC bit 1 / AN17 / SEG24 |
| ピン 23 | RC2 — PORTC bit 2 / AN13 / CCP1 / SEG13 |
| ピン 24 | RC3 — PORTC bit 3 / AN14 / SEG17 / SCL |
| ピン 25 | RC4 — PORTC bit 4 / AN15 / SDA / SEG16 |
| ピン 26 | RC5 — PORTC bit 5 / SEG12 |
| ピン 27 | RC6 — PORTC bit 6 / AN18 / TX/CK / SEG27 |
| ピン 28 | RC7 — PORTC bit 7 / AN19 / RX/DT / SEG26 |
| ピン 29 | RD0 — PORTD bit 0 / SEG0 |
| ピン 30 | RD1 — PORTD bit 1 / SEG1 |
| ピン 31 | VSS — Ground reference |
| ピン 32 | VDD — Positive supply voltage |
| ピン 33 | RD2 — PORTD bit 2 / SEG2 |
| ピン 34 | RD3 — PORTD bit 3 / SEG3 |
| ピン 35 | RD4 — PORTD bit 4 / SEG4 |
| ピン 36 | RD5 — PORTD bit 5 / SEG5 |
| ピン 37 | RD6 — PORTD bit 6 / SEG6 |
| ピン 38 | RD7 — PORTD bit 7 / SEG7 |
| ピン 39 | RE0 — PORTE bit 0 / AN5 / SEG21 |
| ピン 40 | RE1 — PORTE bit 1 / AN6 / SEG22 |
| ピン 41 | RE2 — PORTE bit 2 / AN7 / SEG23 |
| ピン 42 | SEG31 — LCD segment 31 drive output |
| ピン 43 | VLCD1 — LCD bias voltage 1 |
| ピン 44 | VLCD2 — LCD bias voltage 2 / COM0 |
主な用途
PIC16LF1937-I/PT の用途: 6 件s: Battery-Powered Sensor Nodes, Medical Glucose and Portable Diagnostic Meters, Consumer Appliances with LCD UI (Microwave, Washing Machine), Industrial HMI Panels and E-Meter Clusters, Remote Controls and IR/RF Handsets, Small Appliance Control and Toy Electronics.
Battery-Powered Sensor Nodes
The PIC16LF1937-I/PT fits battery-powered wireless sensor nodes because of its 1.8-3.6V nanoWatt XLP operation, which keeps sleep current in the nanoamp range and extends coin-cell life beyond a year. With 14KB Flash it can host a Zigbee or LoRa MAC stack, and its integrated 10-bit ADC plus CTMU enable temperature, humidity, and capacitive-touch measurements without an external analog front-end. The 36 I/O pins comfortably accommodate SPI/ I2C sensor buses and GPIO-driven LEDs while keeping the design single-layer.
おすすめ
Medical Glucose and Portable Diagnostic Meters
Glucose meters and portable diagnostic devices benefit from the PIC16LF1937-I/PT's low 1.8V operation that runs on two AAA cells, plus the integrated LCD driver that eliminates an external segment driver. Its 14KB Flash handles a complete electrochemical sensing algorithm with calibration tables, and 512B RAM buffers multiple readings before transmission. The enhanced CCP/PWM drives audible buzzer feedback. The extended -40C to +85C industrial grade supports home and clinical environments with the same BOM.
おすすめ
Consumer Appliances with LCD UI (Microwave, Washing Machine)
Microwave ovens, washing machines and other white goods use the PIC16LF1937-I/PT because the integrated segment LCD driver can directly drive the 4-mux 16-segment display showing time, status icons, and mode indicators. The 32MHz core plus 14KB Flash run a state-machine UI with up to 16 segmented icons and rotary encoder input on PORTB interrupts. EUSART links to the motor inverter for bidirectional feedback, and the CTMU detects keypad touches without mechanical switches.
おすすめ
Industrial HMI Panels and E-Meter Clusters
Industrial HMI panels and electricity-meter front panels use the PIC16LF1937-I/PT because the integrated LCD driver supports up to 96 segments, ideal for displaying cumulative kWh, voltage, and tariff indicators on low-cost glass LCDs. The 10-bit ADC with 14 channels digitizes current transformers, voltage dividers, and temperature sensors in the same die. The 44-TQFP footprint simplifies the meter PCB and the 1.8-3.6V range allows direct battery backup during line-power outage.
おすすめ
Remote Controls and IR/RF Handsets
TV remote controls and RF handsets adopt the PIC16LF1937-I/PT because its nanoWatt XLP sleep current in the tens of nanoamps means a coin-cell can last 5+ years. The integrated CTMU enables cap-touch buttons, replacing mechanical switches and improving reliability. 14KB Flash holds vendor IR protocols (RC5/RC6/ NEC) and pairing sequences, while the 32MHz core delivers accurate carrier frequencies without external crystals. The 44-TQFP keeps the BOM small.
おすすめ
Small Appliance Control and Toy Electronics
Small appliances, electronic toys, and educational kits use the PIC16LF1937-I/PT because the 14KB Flash and 32MHz CPU run PWM-driven motor control, audio playback, and capacitive sensing in one chip. The 1.8-3.6V range works directly from 2x AA batteries, while the integrated LCD driver supports low-cost segmented display modules. The 36 I/O pins give designers ample headroom for LEDs, buttons, I2C sensors, and motor bridges on the same PCB without expanding the BOM.
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: PIC16LF1937-I/PT — 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 | PIC16F1937-I/PT | PIC16F1937-E/PT | PIC16LF1936-I/PT | PIC16LF1934-I/PT | PIC16F946-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin TQFP (10x10 mm, PT suffix) | 44-pin TQFP - same | 44-pin TQFP - same | 44-pin TQFP - same | 44-pin TQFP - same | 44-pin TQFP - same |
| Supply Voltage | 1.8 V to 3.6 V (LF) | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V |
| Flash | 14 KB | 14 KB | 14 KB | 7 KB | 7 KB | 28 KB |
| RAM | 512 bytes | 512 bytes | 512 bytes | 256 bytes | 256 bytes | 1 KB |
| EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Temperature Grade | -40C to +85C (Industrial) | -40C to +85C | -40C to +125C (Extended) | -40C to +85C | -40C to +85C | -40C to +85C |
主な差別化要因
- Lowest operating voltage in the family for 2x AA battery designs （vs PIC16F1937-I/PT)
- Higher Flash/RAM density vs lower-cost family siblings （vs PIC16LF1936-I/PT)
- Industrial temperature grade matches most consumer/medical designs （vs PIC16F1937-E/PT)
- Smaller RAM vs larger-memory PIC16F946-I/PT for cost-sensitive UI panels （vs PIC16F946-I/PT)
設計ノート
The PIC16LF1937-I/PT integrates a low-power voltage regulator (LPBOR) and an Ultra-Low-Power Wake (ULPWU) module that lets you wake from sleep using a slowly-charging RC network on RA0. For battery life, ensure Sleep is entered with the LFINTOSC selected (default 31 kHz internal RC) and all unused peripherals disabled. Bulk-decouple VDD (pins 11, 32) with a 10uF ceramic plus 100nF placed within 5 mm of the MCU to suppress switching transients.
The 44-pin TQFP (10x10mm body, 0.8mm pitch) requires 0.3mm-wide traces and 0.4mm-pitch vias for fan-out under the package. Place the ICSP header (PGECX/PGEDX) on a 0.1-inch header so PICkit 4 can connect without disassembly. Route the analog AVCC/AVSS pins separately from digital VDD/VSS, and use a star-ground topology if you have analog sensors in your design. Keep the VLCD1/VLCD2 traces short to avoid leakage on segment lines.
Never drive an LED directly from any PIC16 I/O pin when the pin's source/sink current exceeds 25 mA per pin or 200 mA total VDD budget. Use a current-limiting resistor and a transistor if the load requires more current. Note that RE3 (pin 1) is input-only - it cannot drive output. When migrating code from PIC16F1937 to PIC16LF1937, verify LFINTOSC startup time is acceptable for your application - the LF variant takes slightly longer to stabilize from POR.
For EUSART at 115200 baud, ensure the system clock (HFINTOSC or HS crystal) is accurate to within +/-2% to keep baud error below the asynchronous receiver's tolerance. The integrated CTMU is sensitive to leakage - keep the CTMU charge/discharge traces short and surrounded by ground pours to avoid temperature drift. According to Microchip's TB3065 application note, calibrate CTMU readings against an internal band-gap reference once per second for best accuracy.
コンプライアンス情報
RoHS compliant and lead-free per Microchip product page. No AEC-Q100 qualification - select PIC16F1937-E/PT only for non-automotive extended temperature. Pin-paste finish: Matte Tin (Sn).
