SLE4440 Datasheet, PDF (3/14 Pages) Siemens Semiconductor Group – ICs for Chip Cards / Intelligent 256/64/128-Byte EEPROM

SLE 4432
SLE 4442
SLE 4440
SLE 4441
Intelligent 256-Byte EEPROM with Write Protect Function
Intelligent 256-Byte EEPROM with Write Protect Function
and Programmable Security Code (PSC)
SLE 4432
SLE 4442
Features
• 256 x 8-bit EEPROM organization
• Byte-wise addressing
• Irreversible byte-wise protection of lowest 32 addresses
(Byte 0...31)
• 32 x 1-bit organization of protection memory
M3
• Two-wire link protocol
• End of processing indicated at data output
• Ambient temperature T_A -35... +80°C
• Supply voltage 5 V −5 / +10 %
• Supply current < 10 mA
• EEPROM programming time 5 ms
• ESD protection typical 4000 V
• Endurance minimum 10⁵ write/erase cycles / bit¹⁾
• Data retention for minimum of 10 years¹⁾
• Contact configuration and Answer-to-Reset (synchronous transmission) in accordance
to ISO standard 7816
Additional Feature of SLE 4442
• Data can only be changed after entry of the correct 3-byte programmable security code
Type
SLE 4432 M3
SLE 4432 C
SLE 4442 M3
SLE 4442 C
Ordering Code Package
on request
Wire-Bonded Module M3
on request
Chip
on request
Wire-Bonded Module M3
on request
Chip
1) _{Values are temperature dependent, for further information please refer to your Siemens Sales Office.}
Semiconductor Group
3
Data Sheet Extension 09.98