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ST1335 Datasheet PDF

STMicroelectronics ST1335

the ST1335/1336/1355 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 bitwise fashion for reading and programming, and in a byte-wise fashion for internal erasing.
Part No. ST1335
Datasheet ST1335 Download
Manufacturer
STMicroelectronics
Description 5-Contact Memory Card IC 272-bit EEPROM
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ST1335 datasheet page 1 preview

DESCRIPTION

The members of An on-chip Figure 1. Logic Diagram VCC RST Table 1. Signal Names CLK RST I/O VCC GND Clock Reset Data Input / Output Supply Voltage ST1335 ST1336 ST1355 CLK I/O GND Ground AI03106b October 1999 Complete data available under NDA. 1/3 ST1335, ST1336, ST1355 Figure 2. Memory Map 0 16 Physical EEPROM Cells 32 bits 0 16 masked bits Circuit Identification Area Card Identification Area (ID) RAM1 (Write-Only) (RN) (ST1335, ST1355) 32 48 bits Data Area (CD) 40 bits 8 bits 16 bits (Counters and Transport Code) Reserved Area (RA) Certificate (CER) Issuer-Defined Area (ST1336) 64 bits Authentication Secret Key (SK) (ST1335, ST1355) 64 104 112 128 Physical EEPROM Cells 192 Reserved Area (RA) 256 260 264 288 Physical EEPROM Cells 32 bits Anti-Tearing Flags 320 4 bits 4 bits 24 bits Signature Fuses Unused 56 bits User-Defined Area 376 AI03385 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.
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