PIC18F2221-I/SS Microchip Integrated Circuit (Small Outline Packages) In Stock
PIC18F2221-I/SS is an 8-bit PIC18 microcontroller from Microchip with 4 KB Flash, 512 bytes RAM, a 10-channel 10-bit ADC, and a 40 MHz max clock in a SSOP-28 package. It supports I2C, SPI, and USART communication with a 2.0 V to 5.5 V operating range. Available from stock worldwide with competitive pricing.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- PIC18F2221-I/SS Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.6700(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 PIC18 core running up to 40 MHz with 4 KB Flash and 512 bytes RAM for cost-effective embedded control
- 10-channel 10-bit ADC enables direct connection to up to 10 analog sensors without external multiplexing
- Multi-protocol communication support including I2C, SPI, and USART in a compact SSOP-28 package
Applications
The PIC18F2221-I/SS suits a wide range of embedded control applications including industrial sensor nodes, HVAC controllers, and consumer appliance interfaces. Its 10-channel 10-bit ADC allows simultaneous monitoring of multiple analog inputs such as temperature, pressure, and current sensors. The SSOP-28 package and multi-protocol serial interfaces simplify PCB integration in space-constrained designs.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SSOP-28 |
| Factory Lead Time | 5Weeks |
| YTEOL | 9 |
| Has ADC | YES |
| 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 | YES |
| Number of External Interrupts | 3 |
| Number of I/O Lines | 25 |
| Number of Serial I/Os | 1 |
| Number of Timers | 6 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SSOP28,.3 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 512 |
| ROM (words) | 4096 |
| ROM Programmability | FLASH |
| Screening Level | TS 16949 |
| Speed | 40MHz |
| Supply Current-Max | 23mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 4.2V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| 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 2 |
| ECCN | 3A991.A.2 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Philippines, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC18F2221-I/SS:
RISC Microcontroller, 8-Bit, FLASH, PIC18 CPU, 40MHz, CMOS, PDSO28
Frequently Asked Questions
How much Flash and RAM does the PIC18F2221-I/SS provide, and is it sufficient for typical sensor applications?
The PIC18F2221-I/SS includes 4 KB of Flash program memory and 512 bytes of RAM, which is sufficient for simple sensor polling, data filtering, and communication tasks in embedded applications. For projects requiring more complex firmware, Microchip offers pin-compatible PIC18F family members with up to 128 KB Flash at the same SSOP-28 footprint.
What ADC capabilities does the PIC18F2221-I/SS offer for multi-sensor data acquisition?
The PIC18F2221-I/SS integrates a 10-channel 10-bit ADC capable of measuring up to 10 analog input signals at a conversion rate of approximately 100 kSPS. This allows direct monitoring of temperature sensors, potentiometers, current shunts, and other analog transducers without requiring an external ADC chip, reducing BOM cost in multi-sensor applications.
In which communication-intensive embedded designs is the PIC18F2221-I/SS SSOP-28 package a practical choice?
The SSOP-28 package provides 28 pins in a 5.3 mm wide body, making PIC18F2221-I/SS a practical choice for industrial RS-485 sensor transmitters, I2C-based display controllers, and SPI data loggers where moderate I/O count and compact board footprint are both required. Its 40 MHz clock enables USART baud rates up to 2.5 Mbps for high-speed serial communication links.
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+ | $3.7100 | $3.71 |
| 100+ | $3.0500 | $305.00 |
| 1000+ | $2.8000 | $2800.00 |
| 5000+ | $2.6700 | $13350.00 |
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.”