Electronic Components Datasheet Search |
|
AT88SC1608-10SI-00 Datasheet(PDF) 3 Page - ATMEL Corporation |
|
AT88SC1608-10SI-00 Datasheet(HTML) 3 Page - ATMEL Corporation |
3 / 25 page 3 AT88SC1608 0971G–SMEM–04/04 Memory Access Depending on the device configuration, the host might carry out the authentication pro- tocol and/or present different passwords for each operation, read or write. Each user zone may be configured for free access for read and write or for password-restricted access. To insure security between the different user zones (multiapplication card), each zone can use a different set of passwords. A specific AAC for each password and for the authentication provides protection against “systematic attacks.” When the mem- ory is unlocked, the two-wire serial protocol is effective, using SDA and SCL. The memory includes a specific register providing a 32-bit data stream conforming to the ISO 7816-10 synchronous answer-to-reset. Figure 2. Block Diagram Pin Descriptions Supply Voltage (VCC) The V CC input is a 2.7V-to-5.5V positive voltage, supplied by the host. Serial Clock (SCL) The SCL input is used to positive edge clock data into the device and negative edge clock data out of the device. Serial Data (SDA) The SDA pin is bidirectional for serial data transfer. This pin is open-drain driven and may be wire-ORed with any number of other open drain or open collector devices. An external pull-up resistor should be connected between SDA and VCC. The value of this resistor and the system capacitance loading the SDA bus will determine the rise time of SDA. This rise time will determine the maximum frequency during read operations. Low value pull-up resistors will allow higher frequency operations while drawing higher aver- age power supply current. Reset (RST) When the RST input is pulsed high, the device will output the data programmed into the 32-bit answer-to-reset register. All password and authentication access will be reset. Following a reset, device authentication and password verification sequences must be presented to re-establish user access. VCC GND SCL SDA RST ISO Interface Power Mgt. Authentication Unit Data Transfer Password Verification Answer To Reset EEPROM Random Generator |
Similar Part No. - AT88SC1608-10SI-00 |
|
Similar Description - AT88SC1608-10SI-00 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |