ATA5577M2
The Microchip ATA5577M2 is an LF 125 kHz RFID tag IC, with 363 bits total (10 blocks of 33 bits each, 330 bits user configurable), operating at 125 kHz, under Proprietary LF RFID, compatible with EM4100/EM4102, HID, AWID Indala formats via emulation.
Contactless read/write identification IC for 125 kHz RFID applications with enhanced security
Full Specifications
| Manufacturer | Microchip |
|---|---|
| Frequency Category | LF 125 kHz |
| Frequency | 125 kHz |
| Protocol | Proprietary LF RFID, compatible with EM4100/EM4102, HID, AWID, Indala formats via emulation |
| Memory | 363 bits total (10 blocks of 33 bits each, 330 bits user configurable) |
| Interface | RF (contactless) |
| Temperature Range | -40°C to +85°C |
| Form Factor | Wafer (die), SOT23-6, TSSOP8 |
| Security | 32-bit password protection, programmable write/read lock bits, configurable modulation and data rate |
Engineering Brief
The ATA5577M2 is a highly configurable 125 kHz LF RFID transponder IC with 363 bits of memory organized in 10 data blocks and 2 configuration blocks. It features password-protected memory access and programmable lock bits for enhanced security against unauthorized cloning or modification. The chip supports multiple emulation modes and configurable modulation schemes (ASK/FSK/PSK), making it compatible with various legacy RFID reader infrastructures while offering improved security features over standard read-only LF tags.
Typical Applications
Standards & Compliance
Frequently Asked Questions
What is the Microchip ATA5577M2 RFID chip?
The ATA5577M2 is a configurable 125 kHz LF RFID transponder IC with 363 bits of memory and password protection. It supports multiple emulation modes including EM4100/4102, HID, AWID, and Indala formats for compatibility with existing reader infrastructures.
How much memory does the ATA5577M2 have?
The ATA5577M2 has 363 bits total memory organized in 10 data blocks of 33 bits each, with 330 bits available for user configuration. Additional configuration blocks control modulation, data rate, and security settings.
Does the ATA5577M2 support password protection?
Yes, the ATA5577M2 features 32-bit password protection for memory access control and programmable write/read lock bits to prevent unauthorized cloning or modification of stored data.
What modulation types does the ATA5577M2 support?
The ATA5577M2 supports configurable modulation schemes including ASK (Amplitude Shift Keying), FSK (Frequency Shift Keying), and PSK (Phase Shift Keying) to match different reader requirements.
Can the ATA5577M2 emulate EM4100 or HID cards?
Yes, the ATA5577M2 can emulate multiple LF RFID formats including EM4100/EM4102, HID, AWID, and Indala, making it suitable for retrofitting existing access control systems without reader replacement.
What is the difference between ATA5577M2 and T5577?
The ATA5577M2 is Microchip's version with enhanced security features including password protection and lock bits, while maintaining compatibility with standard T5577 configurations. Both operate at 125 kHz with similar memory organization.
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Cross-manufacturer alternatives
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