Zakładka z wyszukiwarką danych komponentów
  Polish  ▼
ALLDATASHEET.PL

X  

FM24V05 Arkusz danych(PDF) 3 Page - Cypress Semiconductor

Numer części FM24V05
Szczegółowy opis  512Kb Serial 3V F-RAM Memory
Download  17 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Producent  CYPRESS [Cypress Semiconductor]
Strona internetowa  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

FM24V05 Arkusz danych(HTML) 3 Page - Cypress Semiconductor

  FM24V05_13 Datasheet HTML 1Page - Cypress Semiconductor FM24V05_13 Datasheet HTML 2Page - Cypress Semiconductor FM24V05_13 Datasheet HTML 3Page - Cypress Semiconductor FM24V05_13 Datasheet HTML 4Page - Cypress Semiconductor FM24V05_13 Datasheet HTML 5Page - Cypress Semiconductor FM24V05_13 Datasheet HTML 6Page - Cypress Semiconductor FM24V05_13 Datasheet HTML 7Page - Cypress Semiconductor FM24V05_13 Datasheet HTML 8Page - Cypress Semiconductor FM24V05_13 Datasheet HTML 9Page - Cypress Semiconductor Next Button
Zoom Inzoom in Zoom Outzoom out
 3 / 17 page
background image
FM24V05 - 512Kb I2C FRAM
Document Number: 001-84462 Rev. *B
Page 3 of 17
Overview
The FM24V05 is a family of serial F-RAM memory
devices. The memory array is logically organized as a
65,536 x 8 bit memory array and is accessed using an
industry standard two-wire (I
2C) interface. Functional
operation of the F-RAM
is similar to serial
EEPROM.
The
major
difference
between
the
FM24V05 and serial EEPROM is F-RAM‟s superior
write performance.
Memory Architecture
When accessing the FM24V05, the user addresses
65,536 locations each with 8 data bits. These data bits
are shifted serially. The 65,536 addresses are
accessed using the two-wire protocol, which includes
a slave address (to distinguish other non-memory
devices) and a 2-byte address. All 16 address bits are
used by the decoder for accessing the memory.
The access time for memory operation is essentially
zero beyond the time needed for the serial protocol.
That is, the memory is read or written at the speed of
the two-wire bus. Unlike an EEPROM, it is not
necessary to poll the device for a ready condition
since writes occur at bus speed. That is, by the time a
new bus transaction can be shifted into the part, a
write operation will be complete. This is explained in
more detail in the interface section below.
Users expect several obvious system benefits from
the FM24V05 due to its fast write cycle and high
endurance as compared with EEPROM. However
there are less obvious benefits as well. For example
in a high noise environment, the fast-write operation
is less susceptible to corruption than an EEPROM
since it is completed quickly. By contrast, an
EEPROM
requiring
milliseconds
to
write
is
vulnerable to noise during much of the cycle.
Note that it is the user‟s responsibility to ensure that
VDD is within datasheet tolerances to prevent
incorrect operation.
Two-wire Interface
The FM24V05 employs a bi-directional two-wire bus
protocol using few pins or board space. Figure 2
illustrates a typical system configuration using the
FM24V05 in a microcontroller-based system. The
industry standard two-wire bus is familiar to many
users but is described in this section.
By convention, any device that is sending data onto
the bus is the transmitter while the target device for
this data is the receiver. The device that is controlling
the bus is the master. The master is responsible for
generating the clock signal for all operations. Any
device on the bus that is being controlled is a slave.
The FM24V05 always is a slave device.
The bus protocol is controlled by transition states in
the SDA and SCL signals. There are four conditions
including start, stop, data bit, or acknowledge. Figure
3 illustrates the signal conditions that specify the four
states. Detailed timing diagrams are shown in the
electrical specifications section.
Microcontroller
SDA
SCL
FM24V05
A0 A1 A2
SDA
SCL
FM24V05
A0 A1 A2
VDD
Rmin = 1.1 Kohm
Rmax = tR/Cbus
Figure 2. Typical System Configuration


Podobny numer części - FM24V05_13

ProducentNumer częściArkusz danychSzczegółowy opis
logo
Ramtron International C...
FM24V05 RAMTRON-FM24V05_10 Datasheet
347Kb / 16P
   512Kb Serial 3V F-RAM Memory
More results

Podobny opis - FM24V05_13

ProducentNumer częściArkusz danychSzczegółowy opis
logo
Ramtron International C...
FM25V05 RAMTRON-FM25V05 Datasheet
334Kb / 16P
   512Kb Serial 3V F-RAM Memory
FM24V05 RAMTRON-FM24V05_10 Datasheet
347Kb / 16P
   512Kb Serial 3V F-RAM Memory
logo
Cypress Semiconductor
FM25V05 CYPRESS-FM25V05 Datasheet
532Kb / 16P
   512Kb Serial 3V F-RAM Memory
FM25V05 CYPRESS-FM25V05_13 Datasheet
486Kb / 17P
   512Kb Serial 3V F-RAM Memory
logo
Ramtron International C...
FM24V05 RAMTRON-FM24V05 Datasheet
200Kb / 15P
   512Kb Serial 3V F-RAM Memory
logo
Cypress Semiconductor
FM24V05 CYPRESS-FM24V05 Datasheet
403Kb / 16P
   512Kb Serial 3V F-RAM Memory
logo
Ramtron International C...
FM25V02 RAMTRON-FM25V02 Datasheet
343Kb / 17P
   256Kb Serial 3V F-RAM Memory
FM25V10 RAMTRON-FM25V10 Datasheet
333Kb / 16P
   1Mb 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
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17


Arkusz danych Pobierz

Go To PDF Page


Link URL




Polityka prywatności
ALLDATASHEET.PL
Czy Alldatasheet okazała się pomocna?  [ DONATE ] 

O Alldatasheet   |   Reklama   |   Kontakt   |   Polityka prywatności   |   Linki   |   Lista producentów
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