PIC16LF1903-E/SO Microchip Integrated Circuit (Small Outline Packages) In Stock
The PIC16LF1903-E/SO is an 8-bit PIC microcontroller from Microchip featuring 7 KB Flash, 256 B RAM, integrated LCD driver, and ADC with nanoWatt XLP low-power technology. It operates at up to 20 MHz and down to 1.8 V supply, making it ideal for battery-powered consumer and industrial applications. Available in SOIC package with extended temperature range.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- PIC16LF1903-E/SO Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.3800(MOQ 594)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PIC16LF1903-E/SO?
- 8-bit PIC core running up to 20 MHz with 1.8 V to 3.6 V supply
- 7 KB Flash program memory and 256 B RAM for compact embedded firmware
- Integrated LCD driver supporting up to 4x8 segments for display applications
- nanoWatt XLP technology enabling sub-µA sleep current for long battery life
- Built-in ADC and boundary scan for sensor acquisition and board-level testing
What is PIC16LF1903-E/SO used for?
The PIC16LF1903-E/SO is well suited for battery-operated consumer products such as portable meters, remote controls, and wearable sensors that require an integrated LCD display and low standby current. Its nanoWatt XLP technology keeps sleep current under 1 µA, extending battery life in energy-harvesting or coin-cell designs. Industrial applications including smart utility meters and HVAC controllers benefit from its extended temperature range and integrated ADC.
What are the specifications of PIC16LF1903-E/SO?
| Pbfree Code | Yes |
| YTEOL | 4.5 |
| Has ADC | YES |
| Additional Feature | ALSO OPERATES AT 16MHZ WITH SUPPLY OF 1.8 V |
| Bit Size | 8 |
| Boundary Scan | YES |
| CPU Family | PIC |
| Clock Frequency-Max | 20MHz |
| DAC Channels | YES |
| DMA Channels | NO |
| JESD-30 Code | R-PDSO-G28 |
| JESD-609 Code | e3 |
| Number of I/O Lines | 25 |
| On Chip Program ROM Width | 8 |
| PWM Channels | NO |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP28,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 256 |
| ROM (words) | 7168 |
| ROM Programmability | FLASH |
| Screening Level | AEC-Q100; TS 16949 |
| Speed | 20MHz |
| Supply Current-Max | 3mA |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 2.3V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.31.00.15 |
| Country of Origin | Thailand |
Where can I find the PIC16LF1903-E/SO datasheet?
PIC16LF1903-E/SO Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for PIC16LF1903-E/SO?
Compatible alternatives and drop-in replacements for PIC16LF1903-E/SO:
RISC Microcontroller, 8-Bit, FLASH, PIC CPU, 20MHz, CMOS, PDSO28
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 32MHz, CMOS, PDSO28
28-pin, 7KB Flash, 256B RAM, 256B EEPROM, LCD,1.8-3.6V, Low Power
Frequently Asked Questions
What is the maximum clock frequency and minimum supply voltage for the PIC16LF1903-E/SO?
The PIC16LF1903-E/SO operates at up to 20 MHz clock frequency and can run from a supply voltage as low as 1.8 V. This combination allows designers to balance performance and power consumption, making the device suitable for battery-powered products that run from a single Li-ion or two AA cells while still achieving responsive 20 MHz execution speed.
How many LCD segments can the PIC16LF1903-E/SO drive directly, and what display topologies does it support?
The PIC16LF1903-E/SO integrates an LCD driver capable of controlling up to 4 commons by 8 segments, supporting static, 1/2, 1/3, and 1/4 duty cycle multiplex configurations. This eliminates the need for an external LCD controller, reducing BOM cost and board space in metering and instrumentation designs that require a 32-segment or smaller alphanumeric or icon-based display.
When would a designer choose the PIC16LF1903-E/SO over a PIC16F1903 without the LF prefix?
The LF variant operates down to 1.8 V versus the standard 2.0 V minimum, which is critical for designs powered by nearly depleted lithium coin cells or energy-harvesting circuits. Both share the same 7 KB Flash and 256 B RAM, but the LF's nanoWatt XLP sleep current below 1 µA gives it a decisive advantage in any application where the MCU spends most of its time sleeping between 20 MHz active bursts.
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About Microchip
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 594+ | $2.7100 | $1609.74 |
| 2970+ | $2.4900 | $7395.30 |
| 5940+ | $2.3800 | $14137.20 |
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