PIC16LF19197-E/MR - 56KB Flash XLP LCD MCU | Microchip
MPN： PIC16LF19197-E/MR ✓ 啟用中PIC16LF19197-E/MR 概覽
A PIC (Peripheral Interface Controller) microcontroller is a compact, programmable computer-on-a-chip built on Harvard architecture. Within Microchip's portfolio, the PIC16 family sits between the PIC10/12/14 baseline line and the PIC18 performance line, targeting low-power embedded applications. The 'LF' prefix indicates a 1.8V-3.6V wide VDD range; 'XLP' denotes Microchip's eXtreme Low-Power technology for battery-driven designs, with sleep currents in the nanoamp range. This particular device family belongs to the hypernym chain: microcontroller -> 8-bit MCU -> PIC16 -> XLP LCD line -> integrated LCD driver MCU.
The PIC16LF19197 integrates a 12-bit ADC with Computation (ADC2), a 5-bit DAC, a low-power comparator, zero-cross detect (ZCD), PWM, CCP, CWG, SMT (Signal Measurement Timer), RTCC with Hardware RTCC, Windowed Watchdog Timer (WWDT), Peripheral Module Disable (PMD), and Peripheral Pin Select (PPS) for flexible I/O mapping. It provides up to 56 KB of self-programmable Flash, 4 KB of SRAM, and 256 bytes of EEPROM, enabling firmware field-updates and parameter storage.
In the PIC16F19197 family, the 'LF' low-voltage core pairs with a battery-friendly charge pump that keeps the LCD contrast supply stable even when VDD drops toward the brown-out threshold. PPS removes fixed peripheral-to-pin mappings, so engineers can route UART, PWM, and timers to any available I/O, simplifying PCB layout. The CWG (Complementary Waveform Generator) and SMT timers reduce CPU overhead for motor control and signal measurement tasks, while PMD allows unused peripherals to be fully powered down, cutting dynamic current.
Typical applications include battery-powered LCD thermostats, utility metering displays, medical glucose and infusion monitors, IoT sensor nodes with character LCDs, and industrial HMI panels. The XLP active current below 50 uA/MHz and the LCD charge pump keep total system current low enough that two AA alkaline cells can power the device for years. When designing with this MCU, ensure VDD decoupling uses a 100 nF ceramic capacitor placed within 5 mm of the VDD pin, route the charge-pump capacitor (LCD_PUMP) traces short and symmetric to minimize ripple on the LCD bias rails, and use PPS to keep high-speed signals away from analog ADC inputs.
直接替換替代品，適用於 PIC16LF19197-E/MR — 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： PIC16LF19197-E/MR （相同外形與佔位） — 差異在於 ADC, Package, Comparators, LCD Driver, Program Memory (Flash).
PIC16LF19196-E/MR
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF19195-E/MR
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF19176-E/MR
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC16LF18876-I/PT
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC16LF19197-E/MR 最大額定值與電氣特性
| Core Architecture | 8-bit PIC16 RISC (Harvard) |
| Family | PIC16F191xx XLP LCD |
| Program Memory (Flash) | 56 KB (32K x 14 words) |
| Data SRAM | 4 KB |
| Data EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage (VDD) | 1.8 V to 3.6 V |
| Temperature Grade | -40C to +125C (Industrial, 'E') |
| 封裝 | 64-pin QFN (9x9 mm) |
| ADC | 12-bit ADC2 with Computation |
| DAC | 5-bit DAC |
| Comparators | Low-power comparator with selectable reference |
| LCD Driver | Integrated LCD with charge pump |
| Timers | PWM, CCP, CWG, SMT, RTCC |
| Watchdog | WWDT (Windowed Watchdog Timer) |
| Peripheral Pin Select (PPS) | Yes |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
PIC16LF19197-E/MR 64-pin qfn (9x9 mm) 腳位配置指南
PIC16LF19197-E/MR（64-pin qfn (9x9 mm) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： PIC16LF19197-E/MR.
請參閱 資料表 以查看完整腳位配置。
典型應用
PIC16LF19197-E/MR 適用於 6 應用s: Battery-Powered Thermostat with LCD, Medical Glucose Meter with Segment LCD, Utility Meter with Multi-Segment LCD, Industrial HMI Control Panel, IoT Sensor Node with LCD Readout, Automotive Dashboard Segment Display.
Battery-Powered Thermostat with LCD
The PIC16LF19197-E/MR is a strong fit for battery-powered thermostats because its integrated LCD charge pump maintains display contrast down to 1.8V on VDD, while the LF core and XLP architecture keep idle current in the nanoamp range. With 56 KB of Flash, the MCU can store scheduling firmware, PID control loops, and a multilingual UI font table. Placed as the system master, it scans the segment LCD directly, samples a thermistor through the 12-bit ADC2, and drives a triac via PWM for HVAC load control, eliminating an external LCD driver IC and reducing BOM cost by roughly $0.50 per unit.
推薦
Medical Glucose Meter with Segment LCD
In a glucose meter, the PIC16LF19197-E/MR runs the strip-impedance measurement algorithm on the 12-bit ADC2 with computation, drives the segment LCD via the integrated charge pump, and logs readings to the 256-byte EEPROM. The XLP sleep current under 100 nA lets two CR2032 coin cells power the meter for over 1000 measurements. The 32 MHz core executes the electrochemical assay in under 2 seconds, keeping the user-facing latency low, and PPS allows flexible PCB routing of the test-strip analog front-end.
推薦
Utility Meter with Multi-Segment LCD
Smart electricity, water, and gas meters use the PIC16LF19197-E/MR to drive large multi-segment LCDs that show consumption and tariff data. The integrated charge pump supports up to 320 segments at low temperatures, and the RTCC with hardware calendar tracks time-of-use tariffs over the 10+ year meter lifetime. The LF core survives brownouts down to 1.8V, and the WWDT guards against firmware lockups. PPS lets the designer keep the metrology analog front-end isolated from the LCD drive traces.
推薦
Industrial HMI Control Panel
Factory HMI panels leverage the PIC16LF19197-E/MR's 56 KB Flash to store multilingual graphical menus on a character LCD and its 32 MHz core for responsive key scanning and Modbus RTU communications via the EUSART. PPS allows the RS-485 transceiver signals to be routed to any GPIO, simplifying PCB layout. The -E temperature grade (up to 125C) lets the MCU survive unheated enclosures. The CWG and SMT peripherals provide precise timing for motor-control feedback in attached servo drives.
推薦
IoT Sensor Node with LCD Readout
Wireless IoT sensor nodes (e.g., LoRa or Sub-GHz sensor boards) use the PIC16LF19197-E/MR as a low-power host that samples environmental sensors, drives a small character LCD for local readout, and forwards data over UART to a radio module. The XLP active current under 50 uA/MHz plus nanoamp sleep allows multi-year operation on two AA cells, while the 56 KB Flash stores over-the-air update staging and sensor calibration data. PPS simplifies PCB routing between the sensors, LCD, and radio.
推薦
Automotive Dashboard Segment Display
Automotive dashboard sub-displays for odometer, fuel, and trip information use the PIC16LF19197-E/MR with the -E (industrial -40C to 125C) temperature grade to drive a multi-segment LCD behind the cluster. The integrated LCD charge pump maintains contrast in cold-start conditions at 6V cranking transients when the supply is regulated down to 3.3V. The CWG peripheral drives LED backlight PWM, and the RTCC keeps accurate time for trip logging.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16LF19197-E/MR — 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 | PIC16LF19196-E/MR | PIC16LF19195-E/MR | PIC16LF19176-E/MR | PIC16LF18876-I/PT |
|---|---|---|---|---|---|
| Package | 64-QFN (9x9 mm) | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same | TQFP-64 - different |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 56 KB | 48 KB | 28 KB | 28 KB | 56 KB |
| SRAM | 4 KB | 4 KB | 4 KB | 2 KB | 4 KB |
| EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| 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 |
| Max CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| LCD Charge Pump | Yes (integrated) | Yes | Yes | No | No |
| ADC | 12-bit ADC2 with Computation | 12-bit ADC2 | 12-bit ADC2 | 12-bit ADC2 | 10-bit ADC |
主要差異化特點
- Highest Flash in the PIC16F19197 LCD family (對比PIC16LF19196-E/MR)
- Integrated LCD charge pump for low-voltage battery designs (對比PIC16LF18876-I/PT)
- Nanoamp XLP sleep current with RTCC running (對比PIC16LF19176-E/MR)
設計說明
Estimated: at VDD=3.3V and active mode @ 32 MHz the PIC16LF19197 draws roughly 8 mA peak; in XLP sleep with LCD disabled current drops below 100 nA. Always place a 100 nF 0402 ceramic decoupling capacitor within 5 mm of each VDD pin and a 10 uF bulk capacitor on the regulator output. Use the PMD (Peripheral Module Disable) registers to power down unused peripherals and the LCD charge pump during deep sleep to minimize quiescent draw in battery applications.
The 64-pin QFN (9x9 mm) package has a large center exposed pad (EP) that MUST be soldered to a ground plane for thermal dissipation and electrical reference. Use a thermal via array (9x9 grid of 0.3 mm drilled vias) under the EP to sink the ~0.6 W maximum dissipation. Keep all analog ADC traces short and away from PWM/CCP switching traces; use PPS to route noisy digital peripherals to GPIO pins on the opposite side of the QFN from the analog inputs.
Do not omit the LCD charge-pump flying capacitor (typically 1 uF X7R) on the LCD_PUMP pins; without it the LCD bias rails collapse and segments appear blank below 2.5V VDD. Configure PPS carefully - unlike older PIC16 devices, multiple peripherals can compete for the same pin and Microchip's code configurator (MCC) is the safest way to lock the assignments. Finally, ensure your programmer/debugger is the MPLAB PICkit 4 or Snap because legacy ICD2 does not support this family.
合規資訊
RoHS and REACH compliant per Microchip product page. Industrial temperature grade (-40C to +125C). Not AEC-Q100 qualified; for AEC-Q100 automotive applications use a -VAO suffix variant.
