Moteur de recherche de fiches techniques de composants électroniques
  French  ▼
ALLDATASHEET.FR

X  

FM24VN10-GTR Fiches technique(PDF) 6 Page - Ramtron International Corporation

No de pièce FM24VN10-GTR
Description  1Mb Serial 3V F-RAM Memory
Download  15 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  RAMTRON [Ramtron International Corporation]
Site Internet  http://www.ramtron.com
Logo RAMTRON - Ramtron International Corporation

FM24VN10-GTR Fiches technique(HTML) 6 Page - Ramtron International Corporation

Back Button FM24VN10-GTR Datasheet HTML 2Page - Ramtron International Corporation FM24VN10-GTR Datasheet HTML 3Page - Ramtron International Corporation FM24VN10-GTR Datasheet HTML 4Page - Ramtron International Corporation FM24VN10-GTR Datasheet HTML 5Page - Ramtron International Corporation FM24VN10-GTR Datasheet HTML 6Page - Ramtron International Corporation FM24VN10-GTR Datasheet HTML 7Page - Ramtron International Corporation FM24VN10-GTR Datasheet HTML 8Page - Ramtron International Corporation FM24VN10-GTR Datasheet HTML 9Page - Ramtron International Corporation FM24VN10-GTR Datasheet HTML 10Page - Ramtron International Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 6 / 15 page
background image
FM24V10 - 1Mb I2C FRAM
Rev. 1.1
Feb. 2009
Page 6 of 15
S
A
Slave Address
0
Address MSB
A
Data Byte
A
P
By Master
By FM24V10
Start
Address & Data
Stop
Acknowledge
Address LSB
A
P
S
Figure 5. Single Byte Write
S
A
Slave Address
0
Address MSB
A
Data Byte
A
P
By Master
By FM24V10
Start
Address & Data
Stop
Acknowledge
Address LSB
A
Data Byte
A
P
S
Figure 6. Multiple Byte Write
Read Operation
There are two basic types of read operations. They
are current address read and selective address read. In
a current address read, the FM24V10 uses the
internal address latch to supply the address. In a
selective read, the user performs a procedure to set
the address to a specific value.
Current Address & Sequential Read
As mentioned above the FM24V10 uses an internal
latch to supply the address for a read operation. A
current address read uses the existing value in the
address latch as a starting place for the read
operation. The system reads from the address
immediately following that of the last operation.
To perform a current address read, the bus master
supplies a slave address with the LSB set to a ‘1’.
This indicates that a read operation is requested.
After receiving the complete slave address, the
FM24V10 will begin shifting out data from the
current address on the next clock. The current address
is the value held in the internal address latch.
Beginning with the current address, the bus master
can read any number of bytes. Thus, a sequential read
is simply a current address read with multiple byte
transfers. After each byte the internal address counter
will be incremented.
Each time the bus master acknowledges a byte,
this indicates that the FM24V10 should read out
the next sequential byte.
There are four ways to properly terminate a read
operation. Failing to properly terminate the read will
most likely create a bus contention as the FM24V10
attempts to read out additional data onto the bus. The
four valid methods are:
1. The bus master issues a no-acknowledge in the
9th clock cycle and a stop in the 10th clock cycle.
This is illustrated in the diagrams below. This is
preferred.
2. The bus master issues a no-acknowledge in the
9th clock cycle and a start in the 10th.
3. The bus master issues a stop in the 9th clock
cycle.
4. The bus master issues a start in the 9th clock
cycle.
If the internal address reaches 1FFFFh, it will wrap
around to 0000h on the next read cycle. Figures 7 and
8 below show the proper operation for current
address reads.
Selective (Random) Read
There is a simple technique that allows a user to
select a random address location as the starting point
for a read operation. This involves using the first
three bytes of a write operation to set the internal
address followed by subsequent read operations.
To perform a selective read, the bus master sends out
the slave address with the LSB set to 0. This specifies
a write operation. According to the write protocol,
the bus master then sends the address bytes that are
loaded into the internal address latch. After the
FM24V10 acknowledges the address, the bus master


Numéro de pièce similaire - FM24VN10-GTR

FabricantNo de pièceFiches techniqueDescription
logo
Ramtron International C...
FM24VN10-GTR RAMTRON-FM24VN10-GTR Datasheet
347Kb / 16P
   1Mb Serial 3V F-RAM Memory
logo
Cypress Semiconductor
FM24VN10-GTR CYPRESS-FM24VN10-GTR Datasheet
441Kb / 16P
   1Mb Serial 3V F-RAM Memory
FM24VN10-GTR CYPRESS-FM24VN10-GTR Datasheet
417Kb / 17P
   1Mb Serial 3V F-RAM Memory
More results

Description similaire - FM24VN10-GTR

FabricantNo de pièceFiches techniqueDescription
logo
Cypress Semiconductor
FM24V10 CYPRESS-FM24V10 Datasheet
441Kb / 16P
   1Mb Serial 3V F-RAM Memory
FM25V10 CYPRESS-FM25V10_13 Datasheet
484Kb / 17P
   1Mb Serial 3V F-RAM Memory
logo
Ramtron International C...
FM24V10 RAMTRON-FM24V10_10 Datasheet
347Kb / 16P
   1Mb Serial 3V F-RAM Memory
logo
Cypress Semiconductor
FM24V10 CYPRESS-FM24V10_13 Datasheet
417Kb / 17P
   1Mb Serial 3V F-RAM Memory
logo
Ramtron International C...
FM25V10 RAMTRON-FM25V10 Datasheet
333Kb / 16P
   1Mb Serial 3V F-RAM Memory
logo
Cypress Semiconductor
FM25V10 CYPRESS-FM25V10 Datasheet
531Kb / 16P
   1Mb Serial 3V F-RAM Memory
logo
Ramtron International C...
FM25V02 RAMTRON-FM25V02 Datasheet
343Kb / 17P
   256Kb Serial 3V F-RAM Memory
logo
Cypress Semiconductor
FM24CL64B CYPRESS-FM24CL64B Datasheet
354Kb / 13P
   64Kb Serial 3V F-RAM Memory
FM24V01 CYPRESS-FM24V01 Datasheet
378Kb / 14P
   128Kb Serial 3V F-RAM Memory
FM24V02 CYPRESS-FM24V02 Datasheet
401Kb / 16P
   256Kb Serial 3V F-RAM Memory
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15


Fiches technique Télécharger

Go To PDF Page


Lien URL




Politique de confidentialité
ALLDATASHEET.FR
ALLDATASHEET vous a-t-il été utile ?  [ DONATE ] 

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Echange de liens   |   Fabricants
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
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