Datenblatt-Suchmaschine für elektronische Bauteile |
|
FM24C08 Datenblatt(PDF) 10 Page - Fairchild Semiconductor |
|
FM24C08 Datenblatt(HTML) 10 Page - Fairchild Semiconductor |
10 / 14 page 10 www.fairchildsemi.com FM24C08U/09U Rev. A.3 Acknowledge The FM24C08U/09U device will always respond with an acknowl- edge after recognition of a start condition and its slave address. If both the device and a write operation have been selected, the FM24C08U/09U will respond with an acknowledge after the receipt of each subsequent eight bit byte. In the read mode the FM24C08U/09U slave will transmit eight bits of data, release the SDA line and monitor the line for an acknowl- edge. If an acknowledge is detected, FM24C08U/09U will continue to transmit data. If an acknowledge is not detected,FM24C08U/09U will terminate further data transmissions and await the stop condi- tion to return to the standby power mode. Device Addressing Following a start condition the master must output the address of the slave it is accessing. The most significant four bits of the slave address are those of the device type identifier. This is fixed as 1010 for all EEPROM devices. Refer the following table for Slave Addresses string details: Device A0 A1 A2 Page Page Block Blocks Addresses FM24C08U/09U P P A 4 00, 01, 10, 11 A: Refers to a hardware configured Device Address pin. P: Refers to an internal PAGE BLOCK. All IIC EEPROMs use an internal protocol that defines a PAGE BLOCK size of 2K bits (for Word addresses 0x00 through 0xFF). Therefore, address bits A0, A1, or A2 (if designated 'P') are used to access a PAGE BLOCK in conjunction with the Word address used to access any individual data byte. The last bit of the slave address defines whether a write or read condition is requested by the master. A '1' indicates that a read operation is to be executed, and a '0' initiates the write mode. A simple review: After the FM24C08U/09U recognizes the start condition, the devices interfaced to the IIC bus wait for a slave address to be transmitted over the SDA line. If the transmitted slave address matches an address of one of the devices, the designated slave pulls the SDA line LOW with an acknowledge signal and awaits further transmissions. Device Type Identifier Device Address 1 0 1 0 A2 A1 A0 R/W (LSB) 24C08/09 Page Block Address |
Ähnliche Teilenummer - FM24C08 |
|
Ähnliche Beschreibung - FM24C08 |
|
|
Link URL |
Privatsphäre und Datenschutz |
ALLDATASHEETDE.COM |
War ALLDATASHEET hilfreich? [ DONATE ] |
Über Alldatasheet | Werbung | Kontakt | Privatsphäre und Datenschutz | Linktausch | Hersteller 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 |