Why choose locally stocked communication ICs
When a project depends on reliable data transfer, being able to source communication ICs quickly and affordably from within South Africa reduces downtime and procurement risk. Communica carries a broad range of UART, I2C/SPI transceivers, CAN controllers, Ethernet PHYs, LoRa modules and Wi-Fi chips aimed at hobbyists, tertiary students, technicians and procurement teams who need parts today - not in weeks. Local pickup from our Samrand head office and Cape Town branch shortens lead times, and VAT invoices simplify college or departmental purchasing.
Fast availability and practical compatibility advice
We stock components suited for common use cases: TTL/CMOS UART transceivers for microcontroller serial links, level-shifting I2C buffers for mixed-voltage boards, and hardened CAN transceivers for vehicle/robotics projects. For each family you can choose parts with different package types, operating voltages and data rates - we highlight compatibility notes so you can match MCU voltage levels and required data throughput without guesswork.
See our Collections to browse categories and filter by interface and package https://www.communica.co.za/collections?utm_source=straider&utm_medium=referral&utm_campaign=prebo-digital.
Specification callouts that matter
- Operating voltage range - ensures direct connection to 3.3V or 5V logic.
- Data rate support - choose parts rated above your bus speed (e.g., 1 Mbps+ for CAN, 100 Mbps for Ethernet PHYs).
- Package and board-mounting - SOT-23 for prototyping, QFN for compact designs.
- ESD protection and fault handling - important for field equipment and development boards.
If you want targeted suggestions, use our Shop by Brand page to see stocked manufacturers and compare series https://www.communica.co.za/pages/shop-by-brand?utm_source=straider&utm_medium=referral&utm_campaign=prebo-digital.
Quick spec comparison table
| Type | Typical Data Rate | Common Packages | Notes |
|---|---|---|---|
| UART transceivers | Up to 5 Mbps | SOT-23, SOIC | Choose TTL/RS232 level shifting as needed |
| I2C/SPI buffers | I2C: 1 MHz, SPI: 50+ MHz | SOT-23, DFN | Look for voltage translation on mixed-voltage designs |
| CAN transceivers | 125 kbps - 1 Mbps | SOIC, VSON | Robust on-vehicle transceivers for noisy environments |
| Ethernet PHYs | 10/100/1000 Mbps | QFN, LQFP | Check MAC/PHY interface compatibility with your MCU |
For an inventory check before you order, Check Stock in Samrand via our Branches & Trading Hours page https://www.communica.co.za/pages/branches-trading-hours?utm_source=straider&utm_medium=referral&utm_campaign=prebo-digital. Availability and lead times are shown per branch so you can pick up the same day when stock is available.
