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SLE 4428 Memory Card
SLE 4428 Memory Card

IS23SC4428 offers all the features in IS23SC4418. In addition, it offers two bytes of Programmable Security Code (PSC) against unauthorized memory write/erase operations. All the memory, except for the PSC can always be read, but the memory can be written or erased only after PSC verification. If the user fails to enter the correct PSC in eight consecutive attempts, the device will block any further PSC entry attempts and the memory can

never be erased or written again. The PSC bytes are pre-programmed by the manufacturer with a code, which is specified for the customer for device transport security purposes, before the devices are shipped to the customer. The Error Counter will be pre-erased by the manufacturer to allow maximum attempts (maximum of eight) for PSC entry.




Order Information

Product Number: 2.1.0.SI.4428
Price per unit: 5.95 US $
3.95 £
4,95 €
10 units and more: 3.45 US $
2.45 £
3,45 €
100 units and more: 1.21 US $
0.88 £
1,1 €
1000 units and more: 0.97 US $
0.71 £
0,89 €
warranty:
3 months

Package of 100 pcs. availible at lowest price in the market. Email us your price-quote-request!

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Shipping-Info

higher volumes up on request
SLE 4428 Memory Card Alle Preise sind Netto-Preise. Verkauf nur an gewerbliche Abnehmer. Ask for project-pricing.



Product Information

This card also offers two bytes of Programmable Security Code (PSC) against unauthorized memory write/erase operations. All the memory, except for the PSC can always be read, but the memory can be written or erased only after PSC verification. If the user fails to enter the correct PSC in eight consecutive attempts, the device will block any further PSC entry attempts and the memory can never be erased or written again. The PSC bytes are pre-programmed by the manufacturer with a code, which is specified for the customer for device transport security purposes, before the devices are shipped to the customer. The Error Counter will be pre-erased by the manufacturer to allow maximum attempts (maximum of eight) for PSC entry.




Standard Features

Standard CMOS process 

1024 x 8 bits EEPROM organization 

Byte-wise addressing/erase/write 

Irreversible byte-wise write protection 

Single 5V power supply for read and write/erase 

Low power operation: – 3 mA typical active current 

5 ms programming time 

3-wire serial interface 

20 KHz serial clock rate 

ISO standard 7816 (Synchronous Transmission) compatible 

High ESD protection: > 4 KV 

 

 

High reliability: 

1,000,000 erase/write cycles guaranteed 

10 years data retention 

 

 

Wide operating temperature range: 

0 to +70°C Commercial; –40 to +85°C Industrial 

 

 

2-byte Programmable Security Code (PSC) for memory write/erase protection 




Technical Specifications

see Datasheet