PIC18LF252-I/SO Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip PIC18LF252-I/SO is a low-power 8-bit PIC18 microcontroller with 32KB flash, 40MHz maximum clock, integrated ADC, and operation down to 2V at 4MHz, packaged in a 28-pin SOIC for battery-powered and general embedded control applications.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- PIC18LF252-I/SO Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $6.3800(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
- 32KB on-chip flash memory provides ample program storage for complex 8-bit firmware including communication stacks
- Low-voltage operation down to 2V at 4MHz enables direct use in single-cell lithium battery and 2xAA battery designs
- 40MHz maximum clock frequency delivers efficient instruction throughput for responsive real-time embedded control
- Integrated ADC enables direct analog signal sampling without external converter ICs, simplifying BOM
- PIC18 enhanced instruction set with hardware multiplier improves computational efficiency over PIC16 predecessors
Applications
The PIC18LF252-I/SO is designed for battery-operated embedded control systems where wide voltage operation from 2V to 5.5V is required, such as portable medical monitors, wireless sensor nodes, and handheld industrial tools. Its 32KB flash and 40MHz clock accommodate feature-rich firmware including sensor fusion algorithms, serial communication protocols like SPI and I2C, and real-time control loops. The 28-pin SOIC footprint integrates easily into standard PCB designs and legacy systems originally built around DIP-28 PIC microcontrollers requiring a surface-mount migration.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-28 |
| Factory Lead Time | 11Weeks |
| YTEOL | 3 |
| Has ADC | YES |
| Additional Feature | ALSO OPERATES AT 2V MINIMUM SUPPLY AT 4 MHZ |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC18 |
| Clock Frequency-Max | 40MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | R-PDSO-G28 |
| JESD-609 Code | e3 |
| Low Power Mode | NO |
| Number of External Interrupts | 3 |
| Number of I/O Lines | 23 |
| Number of Serial I/Os | 1 |
| Number of Timers | 4 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 16 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP28,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Qualification Status | Not Qualified |
| RAM (bytes) | 1536 |
| ROM (words) | 16384 |
| ROM Programmability | FLASH |
| Screening Level | TS 16949 |
| Speed | 40MHz |
| Supply Current-Max | 25mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 2V |
| Supply Voltage-Nom | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| 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 |
| ECCN | 3A991.A.2 |
| 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
Down to what supply voltage can the PIC18LF252-I/SO operate, and at what clock speed?
The PIC18LF252-I/SO operates at a minimum supply voltage of 2V when clocked at 4MHz, making it compatible with single-cell lithium batteries and dual-cell alkaline systems. At higher voltages up to 5.5V, the clock can scale up to 40MHz, offering a flexible trade-off between processing speed and power consumption.
How much flash memory does the PIC18LF252-I/SO provide compared to lower-end PIC16 devices?
The PIC18LF252-I/SO integrates 32KB of flash memory, which is significantly more than most 8-bit PIC16 devices that typically offer 4KB to 14KB. This larger flash capacity allows developers to implement more sophisticated firmware with TCP/IP, USB stacks, or multi-sensor algorithms while staying within the 8-bit PIC18 ecosystem.
Which serial interfaces are available on the PIC18LF252-I/SO for connecting sensors and peripherals?
The PIC18LF252-I/SO includes USART, SPI, and I2C (MSSP) hardware peripherals, enabling communication with a wide range of sensors, memory devices, and display controllers. These 3 interface types cover the most common embedded sensor bus protocols, allowing a single MCU to simultaneously manage multiple peripherals without bit-banging software overhead.
Is the PIC18LF252-I/SO a suitable drop-in replacement for a DIP-28 PIC18 MCU in a legacy hardware revision?
The PIC18LF252-I/SO uses a 28-pin SOIC surface-mount package rather than a through-hole DIP-28, so it is not a mechanical drop-in but is electrically pin-compatible with PIC18F252 DIP versions. A small PCB adapter or updated layout is needed, but the firmware, peripheral registers, and 40MHz clock specification remain identical, making migration straightforward.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $7.6900 | $7.69 |
| 4+ | $7.1775 | $28.71 |
| 25+ | $6.6500 | $166.25 |
| 50+ | $6.6100 | $330.50 |
| 100+ | $6.5300 | $653.00 |
| 5000+ | $6.3800 | $31900.00 |
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