AT88SC1003 View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT88SC1003

1K EEPROM–Security Logic with Three Application Zones

Atmel Corporation 

• Word

Sixteen consecutive data bits. A word boundary will begin on an address that is evenly

divisible by 16. The AT88SC1003 will allow words to be written to a “0” during personal-

ization (Security Level 1). Erase operations will always operate on 16-bit words when

applied to addresses outside the application zones.

• Blown

In reference to AT88SC1003 internal EEPROM fuses, the blown state is a logic “0”.

• Unblown

In reference to AT88SC1003 internal EEPROM fuses, the unblown state is a logic “1”.

• Verification

AT88SC1003 operations are controlled by the state of several internal flags. The flags

SV, E1, E2, and E3 are set after verification of an associated password (security code;

EZ1, EZ2, and EZ3 respectively). Verification is accomplished by executing an

INC/CMP operation, which correctly matches the password bit by bit as the CLK incre-

ments the address through the password memory addresses.

8 AT88SC1003

2035B–SMEM–08/03

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