1 / 4 da t a b r ief june 2000 complete data available under nda . ST1335D, st1336d st1355d 5-contact memory card ic 272-bit eeprom with advanced security mechanisms and inlock system 5 v single supply voltage counting capability (two options) ? up to 32767 (8 5 -1) ? 8 times reloadable, up to 4095 (8 4 -1) active authentication function (ST1335D/55d) cipher block chaining function (st1355d) memory divided into : ? 16 bits of circuit identification ? 48 bits of card identification ? 40 bits of count data ? 16 bits for validation certificate ? 24 bits of transport code ? 64 bits of issuer data (st1336d) or authentication secret key (ST1335D/55d) ? 32 bits of anti-tearing flags (optional) ? 56 bits of user data (optionally not erasable) more than 500,000 erase/write cycles more than 10 years data retention 3.5 ms programming time at 5 v (typical) 500 a supply current at 5 v (typical) 250 a stand-by current at 5 v (typical) description the members of the ST1335D/36d/55d family are principally designed for use in prepaid phonecard applications. each is a 272-bit eeprom device, with associated security logic and special fuses to control memory access. the memory is arranged as a matrix of 34 x 8 cells, accessed in a serial bit- wise fashion for reading and programming, and in a byte-wise fashion for internal erasing. an on-chip figure 1. logic diagram ai03729 rst v cc ST1335D st1336d st1355d gnd i/o clk table 1. signal names clk clock rst reset i/o serial data input / output v cc supply voltage gnd ground wafer micromodule (d15)
ST1335D, st1336d, st1355d 2/ 4 the anti-tearing mechanism guards against mis- counts occurring when the card is prematurely extracted, while an operation is underway, in an open reader. modes the device works in two distinct modes of operation: ? issuer mode: for the card manufacturer. allowing custom data to be written to the device, to initialize it before release to the end user. ? user mode: for the end user of the card, with restricted, and controlled access to the device. before delivery, from st to the card issuer, the device is placed in the issuer mode. this operation is performed by blowing the ? test fuse ? . options three options are available when 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 3). ? the user area, from bit 320d to bit 375d, can be defined as ? not erasable ? in the user mode. ? 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. address counter provides an internal address space of up to 512 bits. each member of the ST1335D/36d/55d 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 (st1336d) or an authentication secret key area (ST1335D/55d), and a user area. this is summarized in figure 3. the validation certificate allows the recognition of the device by the appropriate security module. when the 8 times reloadable option is activated, the certificate and the reload counter (address 64d to 71d) can be used to allow the recognition of the circuit by the appropriate security module. this will allow the development of a reloadable card as the certificate value is refreshed each time the reload counter is incremented. figure 2. d15 contact connections v cc gnd clk i/o rst ai03732 ST1335D st1336d st1355d table 2. ordering information scheme note: 1. please contact your nearest st sales office to check on availability example: st1335 d 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 revision delivery form d 5 v supply voltage, fuse blow and inlock system d15 micromodule on reel w4 wafer (180 m thickness)
3 / 4 ST1335D, st1336d, st1355d figure 3. memory map note: 1. the write-only ram area (rn) is applicable only for the user mode. ai03385c anti-tearing flags user-defined area signature (s) fuses unused reserved area (ra) reserved area (ra) certificate (cer) data area (cd) (counters and transport code) issuer-defined area (st1336d) authentication secret key (sk) (ST1335D, st1355d) card identification area (id) circuit identification area 0 16 64 104 112 128 192 256 260 264 288 320 376 56 bits 4 bits 4 bits 24 bits 32 bits 64 bits 16 bits 8 bits 40 bits 48 bits 16 masked bits physical eeprom cells physical eeprom cellsphysical eeprom cells ram 1 (write-only) (rn) (ST1335D, st1355d) 0 32 32 bits 64 bits
ST1335D, st1336d, st1355d 4 / 4 information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsibility for the co nsequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specifications mentioned in this publicati on are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectronics prod ucts are not authorized for use as critical components in life support devices or systems without express written approval of stmicroelectro nics. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners ? 2 0 0 0 s t m i c r oe l e c t r o n i c s - a l l r i gh t s r e s e r v ed bull cp8 patents stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - italy - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - united states www.st.com
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