System characteristics

EM 4450

EM 4200

Total memory [bit]

EEPROM: 1024

ROM: 128 or 96, 64

Memory organisation

32 blocks, 32 bits each

-

Usable memory [bit]

928

-

Data transfer

contactless

contactless

Frequency range [kHz]

100...150

100...150

Baudrate [KBd]

2 or 4

ca. 2

Write transfer speed [ms]

ca.25,6

N/A (read only)

Read distance [m]; depending on reader antenna geometry

up to 0,30 - 0,60

up to 0,80

Write distance [m]; depending on antenna geometry

up to 0,30 - 0,50

N/A

Write endurance [cycles]

100 000

N/A

Data retention [years]

10

N/A

Security features

32 bit password and control world

One-time serial ID Number (Fab programmed)

32 bit Device Serial Number (Read Only Laser ROM)

Parity bit and Customer Code

32 bit Device Identification Number (Read Only Laser ROM)

No data encryption