ATA5577M3
The Microchip ATA5577M3 is an LF 125 kHz RFID tag IC, with 363 bits total (330 bits user programmable), operating at 125 kHz, under EM4100, EM4102, T5557, Hitag, Indala and other LF formats.
Multi-protocol LF RFID read/write tag IC supporting multiple data formats with password protection
Full Specifications
| Manufacturer | Microchip |
|---|---|
| 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
Standards & Compliance
Frequently Asked Questions
What protocols does the ATA5577M3 support?
The ATA5577M3 supports multiple LF RFID protocols including EM4100, EM4102, T5557, Hitag, and Indala formats through configurable emulation, enabling backward compatibility with legacy 125 kHz systems.
How much memory does the ATA5577M3 have?
The ATA5577M3 has 363 bits total memory, with 330 bits available for user programming. The remaining bits are used for configuration and control functions.
Does the ATA5577M3 have password protection?
Yes, the ATA5577M3 features 32-bit password protection for both read and write operations, providing security against unauthorized access and data modification.
What operating frequency does the ATA5577M3 use?
The ATA5577M3 operates at 125 kHz, making it compatible with standard low-frequency RFID readers and existing LF infrastructure.
Can the ATA5577M3 emulate EM4100 cards?
Yes, the ATA5577M3 can be configured to emulate EM4100 and EM4102 cards along with other legacy LF formats, making it suitable for retrofitting existing access control systems.
Is the ATA5577M3 a read-only or read-write chip?
The ATA5577M3 is a read-write chip with user-programmable memory, allowing data to be written, modified, and locked with password protection as needed.
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