3/3

ST1335, ST1336, ST1355

card is unexpectedly extracted, while an operation

is underway, in an open reader.

EXTERNAL COMMANDS

CLK, RST. Four commands distinct can be

composed using these external pins:

– RESET: to reset the internal address register to

000d

– READ: to increment the internal address

register and read the data bit at the new address

– COMPARE:

to

allow

comparison

of

the

presented code against the internal transport

code

– PROGRAM: to program the bit at the current

address

CONFIGURATIONS

The device works in two distinct configurations:

– Issuer Configuration: for the card manufacturer.

Customized data can be written to the chip, to

initialize it before release to the end user.

– User Configuration: for use by the end user of

the card, but with restricted access.

OPTIONS

Three options can be chosen on ordering the

device:

– The

anti-tearing

mechanism

can

be

disconnected. In this case, the anti-tearing flag

area from bit 288d to bit 319d is unused (Figure

2).

– The user area, from bit 320d to bit 375d, can be

defined

as

“not

erasable”

in

the

User

Configuration.

– The reload mechanism can be activated. In this

case, erasing a bit in the reload counter

refreshes the certificate (CER). At this time, the

certificate can be programmed with a new

value.

ORDERING INFORMATION

The notation used for the device number is as

shown in Table 2. For a list of available options

(speed, package, etc.) or for further information on

any aspect of this device, please contact your

nearest ST Sales Office.

Table 2. Ordering Information Scheme

Note: 1. Please contact your nearest ST Sales Office to check on availability

Example:

ST1335

–C

W4

/

XX

YY

Product

Transport Code

35

Active Authentication Function

Given by ST

36

Issuer Area

55

Cipher Block Chaining

Authentication Function

Customer Code

Given by the Issuer

Fuse Blow Voltage

Delivery Form

D10

Micromodule on reel

C

D15

Micromodule on reel

W4

Wafer (180

µm thickness)

W2

Wafer (280

µm thickness)