PIC16LF1934-I/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
Microchip PIC16LF1934-I/P is an 8-bit PIC microcontroller with 7 KB Flash, 256 bytes RAM, 256 bytes EEPROM, and an integrated LCD driver, operating from 1.8 V to 5.5 V at up to 32 MHz. It includes onboard ADC and supports low-voltage operation down to 1.8 V at 16 MHz in a 40-pin PDIP package for embedded control and display applications.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 40
- Lifecycle
- ACTIVE
- Datasheet
- PIC16LF1934-I/P Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.0520(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
- Integrated LCD driver eliminating external display controller ICs for segment display applications in meters and appliances
- Wide 1.8 V to 5.5 V supply range enabling direct battery-powered operation from single-cell Li-ion or 4× AA alkaline sources
- 32 MHz maximum clock with low-power operation at 16 MHz from 1.8 V for energy-efficient embedded control
- 7 KB Flash and 256 bytes EEPROM providing non-volatile storage for firmware and user-configurable parameters without external memory
- 40-pin PDIP through-hole package supporting rapid prototyping on breadboards and hand-soldered development boards
Applications
The PIC16LF1934-I/P is used in battery-powered metering and display products such as energy monitors, digital panel meters, and water quality sensors where the integrated LCD driver reduces component count and board area. Its 1.8 V minimum supply and 32 MHz performance allow it to serve as the primary controller in portable instruments that run from 2× AAA batteries while updating an LCD display and sampling analog inputs via the built-in ADC. Home appliance control boards, HVAC controllers, and industrial panel indicators also deploy this MCU for its combination of display driving, analog sensing, and non-volatile EEPROM storage in a single through-hole device.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-40 |
| Factory Lead Time | 1Week |
| 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 | R-PDIP-T40 |
| JESD-609 Code | e3 |
| Number of I/O Lines | 35 |
| On Chip Program ROM Width | 14 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP40,.6 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| RAM (bytes) | 256 |
| ROM (words) | 4096 |
| 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 | NO |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC16LF1934-I/P:
44-pin, 7KB Flash, 256B RAM, 256B EEPROM, LCD, 1.8-3.6V, LOW POWER
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 32MHz, CMOS, PDIP40
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 32MHz, CMOS, PQFP44
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 32MHz, CMOS, PDIP40
Frequently Asked Questions
What is the minimum supply voltage for the PIC16LF1934-I/P, and how does low-voltage operation affect clock speed?
The PIC16LF1934-I/P operates down to 1.8 V minimum supply, supporting up to 16 MHz clock frequency at that voltage, while reaching its full 32 MHz maximum speed at supply voltages of 2.7 V and above. This voltage-frequency scaling allows designers to prioritize low-power operation in battery-powered products—running at 1.8 V and 16 MHz extends battery life significantly compared to full-speed 5 V operation while still providing enough throughput for LCD refresh and ADC sampling tasks.
How does the integrated LCD driver in the PIC16LF1934-I/P reduce BOM cost compared to MCUs without display control?
The built-in LCD driver in the PIC16LF1934-I/P can directly multiplex up to 4 commons and 8 segment lines, supporting displays with up to 32 segments without any external LCD controller IC. Eliminating a dedicated LCD driver chip typically saves 1–3 USD per board in component cost and removes 1–2 IC footprints from the PCB layout, reducing board area by approximately 30–50 mm² in compact meter designs while simplifying the firmware interface to direct SFR register writes.
For a portable water quality sensor running on 2× AA batteries, how long can the PIC16LF1934-I/P sustain operation in low-power mode?
In sleep mode the PIC16LF1934-I/P draws approximately 20 nA from the supply rail at 1.8 V, meaning a 2500 mAh AA alkaline pair could theoretically sustain standby for decades, with the practical limit set by battery self-discharge. In a typical duty-cycled design where the MCU wakes every 1 second for a 10 ms ADC sample and LCD update at 32 MHz from 3 V, average current drops to roughly 50–100 µA, giving 2–4 years of field operation from 2× AA batteries between replacements.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.2400 | $3.24 |
| 5+ | $2.9200 | $14.60 |
| 20+ | $2.2800 | $45.60 |
| 50+ | $2.1432 | $107.16 |
| 150+ | $2.0520 | $307.80 |
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