RFID cards with EM4550 chips
(Product ID: 1445)

Documents:

Datasheet

The EM4550 is a 125 kHz read/write RFID chip with 1 Kb EEPROM memory, allowing data to be stored, updated, and password-protected.

It’s used for industrial tracking, access control, reusable ID tags, and smart logistics, offering reliable peformance.

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INFO

The EM4550 is a 125 kHz read/write RFID transponder IC designed for flexible and secure identification systems. It features 1 Kb of EEPROM memory, allowing data to be programmed, updated, and protected by password.

The chip supports ASK and FSK modulation, Manchester or biphase encoding, and offers excellent compatibility with EM Microelectronic’s EM4469/EM4569 family.

Key features:

125 kHz low-frequency operation
1 Kb reprogrammable EEPROM
Password protection and data locking
Long data retention and high endurance

Typical applications:

Industrial asset tracking and logistics
Access control and time-attendance systems
Reusable ID tags and key fobs
Sensor calibration data storage
Animal or product identification where rewritable memory is needed

Manufacturer:	EM
Chip:	EM4550
Frequency:	125 kHz
Memory:	1K bit - Read/write EEPROM memory
Modulation:	ASK
Reading distance:	2-3 cm
Dimensions:	CR80 (85,60 x 53,98 mm)
Thickness:	0,84 mm
Material:	PVC
Printing options:	offset, thermal re-transfer, thermal transfer