ATA5577M3
Multi-protocol LF RFID read/write tag IC supporting multiple data formats with password protection
Full Specifications
| Manufacturer | Microchip Technology |
|---|---|
| Frequency Category | LF 125 kHz |
| Frequency | 125 kHz |
| Protocol | EM4100, EM4102, T5557, Hitag, Indala, and other LF formats |
| Memory | 363 bits total (330 bits user programmable) |
| Interface | RF (contactless) |
| Temperature Range | -40°C to +85°C |
| Form Factor | Wafer, SO8, TSSOP8 |
| Security | 32-bit password protection for read/write operations |
Engineering Brief
The ATA5577M3 is a highly versatile 125 kHz LF RFID transponder IC featuring configurable modulation schemes and data rates. It supports emulation of multiple legacy LF RFID protocols including EM41xx, Hitag, and T5557 formats, making it ideal for backward-compatible deployments. With 330 bits of user-programmable memory and password-protected read/write operations, it provides flexible security for access control, asset tracking, and identification applications. The chip operates across an industrial temperature range and is available in multiple package options for both card and tag implementations.
Typical Applications
- Access control systems
- Animal identification and tracking
- Automotive immobilizer systems
- Industrial identification and asset tracking
- Loyalty and membership cards
- Consumable authentication
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