PIC16LF1937-I/ML Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
Microchip PIC16LF1937-I/ML is a low-power 8-bit microcontroller with 14 kB Flash, 512 B RAM, 256 B EEPROM, integrated ADC, and LCD driver operating from 1.8 V to 5.5 V. It runs at up to 32 MHz and is housed in a 44-pin QFN package. Ideal for metering, display-driven, and portable embedded applications.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 44
- Lifecycle
- ACTIVE
- Datasheet
- PIC16LF1937-I/ML Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.1000(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit PIC16 CPU at 32 MHz with 14 kB Flash and 512 B RAM
- Integrated LCD driver and 256 B EEPROM for display and non-volatile storage
- Ultra-low 1.8 V minimum supply operation at 16 MHz for battery applications
- 44-pin QFN package with ADC for multichannel analog sensing
Applications
The PIC16LF1937-I/ML targets consumer and industrial applications requiring LCD display drive, analog sensing, and non-volatile data storage within a single microcontroller. Its integrated LCD driver reduces external component count in energy meters, thermostats, and handheld measurement instruments where a segmented display must coexist with sensor acquisition and data logging. The 1.8 V to 5.5 V supply range enables seamless operation across alkaline battery packs, rechargeable Li-ion cells, and regulated 3.3 V or 5 V system rails.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | QFN-44 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Has ADC | YES |
| Additional Feature | ALSO OPERATES AT 1.8V MINIMUM SUPPLY FOR 16 MHZ |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC16 |
| Clock Frequency-Max | 32MHz |
| DAC Channels | YES |
| DMA Channels | NO |
| JESD-30 Code | S-PQCC-N44 |
| JESD-609 Code | e3 |
| Number of I/O Lines | 36 |
| On Chip Program ROM Width | 14 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC44,.31SQ,25 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 512 |
| ROM (words) | 8192 |
| ROM Programmability | FLASH |
| Speed | 32MHz |
| Supply Current-Max | 8mA |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 3.3V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.65mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What memory resources does the PIC16LF1937-I/ML provide for embedded firmware and data storage?
The PIC16LF1937-I/ML includes 14 kB of Flash program memory for firmware, 512 B of SRAM for runtime variables, and 256 B of EEPROM for non-volatile data such as calibration constants, user settings, or logged measurements. This combination allows moderate-complexity applications like energy meter firmware or thermostat programs to store both executable code and persistent configuration data entirely on-chip without external memory ICs.
How does the integrated LCD driver in the PIC16LF1937-I/ML simplify display-enabled designs?
The on-chip LCD driver eliminates the need for a separate LCD controller IC, directly driving multiplexed segmented LCD panels of up to 128 segments. For meter displays, point-of-sale terminals, or appliance panels using 4-character numeric LCD modules, this integration reduces BOM count by at least 1 IC and saves the I2C or SPI bus bandwidth that an external driver would otherwise consume, while operating correctly at supply voltages from 1.8 V to 5.5 V.
At what supply voltage and clock speed can the PIC16LF1937-I/ML run in low-power battery mode?
The PIC16LF1937-I/ML operates at a minimum supply of 1.8 V while maintaining 16 MHz clock speed, enabling reliable operation from a single lithium coin cell or deeply discharged alkaline battery. At full 32 MHz operation a higher supply voltage is required, but the 1.8 V at 16 MHz capability covers most battery-powered meter and wearable sensor scenarios where both display and ADC functions must remain active between 1.8 V and 5.5 V.
How does the QFN-44 package of PIC16LF1937-I/ML compare to a DIP package for a metering application?
The 44-pin QFN footprint is significantly smaller than a comparable 44-pin DIP package, occupying roughly 7 mm x 7 mm versus over 55 mm length for a DIP-40. For residential energy meter PCBs where 3 to 5 voltage and current sense inputs must connect to ADC channels, the QFN-44 fits within tight form factor constraints while exposing all 44 pins including LCD segment drive lines. Surface-mount assembly is also compatible with high-volume automated pick-and-place lines.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.6300 | $2.63 |
| 90+ | $2.6200 | $235.80 |
| 100+ | $2.4200 | $242.00 |
| 180+ | $2.2700 | $408.60 |
| 1000+ | $2.2300 | $2230.00 |
| 5000+ | $2.1000 | $10500.00 |
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