PIC12F509-I/MS Microchip Integrated Circuit (Small Outline Packages) In Stock
PIC12F509-I/MS is an 8-bit PIC12 microcontroller with 1.5K Flash, 41 bytes RAM, and a 4 MHz clock. It offers 6 I/O pins in a tiny MSOP-8 package, targeting cost-sensitive embedded control applications. Ideal for simple switching, LED control, and sensor interfacing tasks with minimal BOM.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- PIC12F509-I/MS Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.6800(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 core running at up to 4 MHz with 1.5K words of on-chip Flash for compact firmware storage
- Ultra-small MSOP-8 package with 6 configurable I/O pins for the smallest possible PCB footprint in constrained designs
- Low-power standby modes and direct 5 V GPIO drive reduce external component count in battery-powered sensor nodes
Applications
The PIC12F509-I/MS is used in cost-optimized embedded designs such as LED lighting controllers, power sequencing circuits, and simple sensor interfaces where an 8-pin MCU is sufficient. Its 1.5K Flash and 41-byte RAM are adequate for state machines and basic input/output control routines running at 4 MHz. The MSOP-8 package allows placement in extremely tight PCB layouts typical of consumer appliance controls and industrial IO expanders.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | MSOP-8 |
| Factory Lead Time | 6Weeks |
| YTEOL | 9 |
| Has ADC | NO |
| Bit Size | 8 |
| CPU Family | PIC12 |
| Clock Frequency-Max | 4MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| JESD-30 Code | S-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,.19 |
| Package Shape | SQUARE |
| 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 | 0.65mm |
| 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 | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC12F509-I/MS:
RISC Microcontroller, 8-Bit, FLASH, PIC12 CPU, 4MHz, CMOS, PDSO8
Frequently Asked Questions
How much program memory does the PIC12F509-I/MS have and what size firmware can it run?
The PIC12F509-I/MS provides 1.5K words (approximately 1536 14-bit instructions) of on-chip Flash and 41 bytes of data RAM. This capacity is sufficient for simple state machines, 4 MHz timer-driven PWM generation, and I/O control routines typical of appliance button interfaces, LED dimming controllers, or small sensor conditioning loops.
What is the maximum clock frequency of the PIC12F509-I/MS and how does it handle timing-sensitive 5 V GPIO tasks?
The PIC12F509-I/MS runs at up to 4 MHz, yielding a 250 ns instruction cycle time. This is fast enough for bit-banged serial protocols at up to 100 kbps and software PWM at frequencies above 1 kHz, making the device suitable for 5 V GPIO-driven relay sequencing, LED brightness control, and capacitive touch debouncing in consumer appliances.
When is the PIC12F509-I/MS preferred over larger 8-pin MCUs such as the PIC12F683 for new designs?
PIC12F509-I/MS is preferred over PIC12F683 when the design needs the absolute minimum die cost and the application does not require an ADC or EUSART peripheral. The 1.5K Flash and 41-byte RAM meet simple sequencing tasks, and the MSOP-8 package at standard 0.65 mm pitch fits onto smaller PCBs than a standard PDIP-8, lowering both component cost and board area by roughly 50%.
Does PIC12F509-I/MS include an ADC, and what alternatives should engineers consider if analog measurement is needed?
No, the PIC12F509-I/MS does not include an ADC or DAC. Designers requiring on-chip analog-to-digital conversion should consider the PIC12F675 (4-channel 10-bit ADC, 8 pins) or PIC12F683 (4-channel 10-bit ADC, 4 MHz, MSOP-8), both of which offer the same 8-pin form factor while adding 10-bit analog measurement capability for temperature sensor or battery voltage monitoring applications.
Related Guides
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.9200 | $0.92 |
| 25+ | $0.8500 | $21.25 |
| 100+ | $0.7800 | $78.00 |
| 1000+ | $0.7100 | $710.00 |
| 5000+ | $0.6800 | $3400.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”