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ST1305 Fiches technique(PDF) 1 Page - STMicroelectronics |
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ST1305 Fiches technique(HTML) 1 Page - STMicroelectronics |
1 / 2 page 1/2 BD.05/9803V1 AI01032 RST VCC ST1305 GND I/O CLK Figure 1. Delivery Forms ST1305 High Endurance CMOS 192 bit EEPROM With Secure Logic Access Control BRIEF DATA s Single 5 V Supply Voltage s Programming Time: 5 ms s Memory Divided Into: – 16 bits of Circuit Identification – 48 bits of Card Identification – 48 bits of Count Data – 16 bits of Certificate – 48 bits of Transport Code – 64 bits of Issuer Data s Counting Capability up to 262,144 Units s Circuit Protected by Transport Code for Delivery from ST to the Customer s 5 External Contacts Only (ISO 7816 Compatible) s Answer to Reset (Fully Compatible with ISO 7816-3) s E.S.D. Protection Greater Than 4000 V s Power-On and Low VCC Reset s 10 Years Data Retention s 1 Million Erase/Write Cycles Endurance DESCRIPTION The ST1305 is a 192-bit EEPROM device with associat- ed security logic to control memory access. The circuit includes counting capabilities and thus is very well adapted to prepaid card applications. The ST1305 is protected by hard-wired security logic and special fuses. The memory is arranged as a matrix of 24x8 cells, accessed in a serial bit-wise fashion for reading and programming, and in a byte-wise fashion for internal erasing. The device recognises three commands issued via the RST and CLK pins (as described in the full data sheet): – RESET: to reset the internal address register to 00d – READ: to increment the internal address register, and read the data bit at that address – PROG: to program the bit at the current address. Figure 2. Pin Connection Table 1. Signal Names CLK Clock RST Reset I/O Serial Data Input/Output VCC Supply Voltage GND Ground Micromodule Wafer |
Numéro de pièce similaire - ST1305 |
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Description similaire - ST1305 |
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