ST1355 ST Microelectronics, ST1355 Datasheet - Page 2

• Manufacturer Part Number: ST1355
• Description: (ST1335/13361355) 5-Contact Memory Card IC 272-bit EEPROM with Advanced Security Mechanisms
• Manufacturer: ST Microelectronics

ST1335, ST1336, ST1355
Figure 2. Memory Map
Note: 1. The write-only RAM area (RN) is applicable only for the User Configuration.
address counter provides an internal address
space of up to 512 bits.
Each member of the ST1335/1336/1355 family
has an identification data area, unit-counters (with
an anti-tearing mechanism for reliable usage in
open readers), a post validation certificate, an
issuer area (ST1336) or an authentication secret
2/3
16 masked bits
24 bits
48 bits
40 bits
32 bits
56 bits
16 bits
64 bits
4 bits
8 bits
4 bits
Reserved Area (RA)
Issuer-Defined Area
Card Identification
(ST1335, ST1355)
User-Defined Area
Identification Area
Anti-Tearing Flags
Certificate (CER)
Transport Code)
Secret Key (SK)
Data Area (CD)
Reserved Area
(Counters and
Authentication
Area (ID)
(ST1336)
Signature
Unused
Circuit
Fuses
(RA)
0
64
104
112
128
256
260
264
288
320
376
16
192
key area (ST1335/1355), and a user area. This is
summarized in Figure 2.
The validation certificate allows the recognition of
the device by the appropriate security module.
The anti-tearing mechanism guards against extra,
spurious count signals being executed when the
32 bits
RAM 1 (Write-Only)
(ST1335, ST1355)
(RN)
AI03385
0
32