PIC12F509-I/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
PIC12F509-I/SN is an 8-bit PIC microcontroller from Microchip in an SOIC-8 package with 1.5 KB Flash program memory and up to 4 MHz clock frequency. It offers 6 GPIO pins and on-chip oscillator for cost-sensitive embedded control. Available from stock worldwide with fast global shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- PIC12F509-I/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.6200(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 PIC12 CPU core with up to 4 MHz clock frequency
- 1.5 KB Flash program memory with 41 single-word instructions
- 6 general-purpose I/O pins in compact SOIC-8 8-pin package
- On-chip 4 MHz internal oscillator eliminates external crystal
- Wide supply voltage range from 2 V to 5.5 V for battery-powered applications
- Watchdog timer and power-on reset for reliable standalone operation
Applications
The PIC12F509-I/SN targets low-cost, space-constrained embedded control applications such as simple sensor interfaces, LED drivers, motor speed controllers, and home appliance timing circuits. Its 8-pin SOIC package and internal oscillator make it ideal for consumer electronics where board space and BOM cost must be minimized. Designers also use it in battery-powered remote sensors and white goods control where a full-featured MCU would be over-specified.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 7Weeks |
| YTEOL | 9 |
| Has ADC | NO |
| Bit Size | 8 |
| CPU Family | PIC12 |
| Clock Frequency-Max | 4MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of I/O Lines | 6 |
| On Chip Program ROM Width | 8 |
| PWM Channels | NO |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.23 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 41 |
| ROM (words) | 1536 |
| ROM Programmability | FLASH |
| Speed | 4MHz |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 2V |
| 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 | EAR99 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Mainland China, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC12F509-I/SN:
RISC Microcontroller, 8-Bit, FLASH, PIC12 CPU, 4MHz, CMOS, PDSO8
Frequently Asked Questions
How much program memory does the PIC12F509-I/SN have and what instruction set does it support?
The PIC12F509-I/SN includes 1.5 KB of Flash program memory supporting the 41-instruction PIC12 reduced instruction set. Each instruction executes in a single 250 ns cycle at the maximum 4 MHz clock, allowing efficient execution of simple control loops. This compact memory size suits one-time programmed or field-programmable low-cost embedded applications.
Can the PIC12F509-I/SN run without an external crystal, and what clock options are available?
Yes, the PIC12F509-I/SN includes an on-chip internal oscillator running at up to 4 MHz, eliminating the need for an external crystal or resonator. This saves 2 PCB components and reduces BOM cost. The device also supports external RC oscillator and external clock input modes for applications needing precise timing or frequency synchronization.
In a battery-powered sensor application running from two AA cells, how does the PIC12F509-I/SN fit the supply voltage requirement?
The PIC12F509-I/SN operates across a 2 V to 5.5 V supply range, making it compatible with two AA alkaline cells delivering approximately 3 V at mid-discharge. Its low-power sleep mode draws only a few microamps, extending battery life significantly. The 8-pin SOIC-8 package also minimizes PCB area and keeps the finished design compact.
When would PIC12F509-I/SN be preferred over PIC12F629 for a simple LED controller design?
For a purely digital LED controller not requiring ADC input, the PIC12F509-I/SN is a lower-cost alternative to the PIC12F629 because it omits the analog comparators and EEPROM data memory that the 629 adds. With 6 I/O pins and 1.5 KB Flash, it has sufficient resources to control up to 6 LED outputs with PWM implemented in firmware, at a reduced unit price. The identical 8-pin SOIC-8 package ensures pin-compatible board designs.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.8500 | $0.85 |
| 3+ | $0.6890 | $2.07 |
| 1000+ | $0.6600 | $660.00 |
| 5000+ | $0.6200 | $3100.00 |
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