データシートサーチシステム
  Japanese  ▼
ALLDATASHEET.JP

X  

FM24C16B-GTR データシート(PDF) 5 Page - Cypress Semiconductor

部品番号 FM24C16B-GTR
部品情報  16Kb Serial 5V F-RAM Memory
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
メーカー  CYPRESS [Cypress Semiconductor]
ホームページ  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

FM24C16B-GTR データシート(HTML) 5 Page - Cypress Semiconductor

  FM24C16B-GTR Datasheet HTML 1Page - Cypress Semiconductor FM24C16B-GTR Datasheet HTML 2Page - Cypress Semiconductor FM24C16B-GTR Datasheet HTML 3Page - Cypress Semiconductor FM24C16B-GTR Datasheet HTML 4Page - Cypress Semiconductor FM24C16B-GTR Datasheet HTML 5Page - Cypress Semiconductor FM24C16B-GTR Datasheet HTML 6Page - Cypress Semiconductor FM24C16B-GTR Datasheet HTML 7Page - Cypress Semiconductor FM24C16B-GTR Datasheet HTML 8Page - Cypress Semiconductor FM24C16B-GTR Datasheet HTML 9Page - Cypress Semiconductor Next Button
Zoom Inzoom in Zoom Outzoom out
 5 / 12 page
background image
FM24C16B - 16Kb 5V I2C F-RAM
Rev. 3.0
Jan. 2012
Page 5 of 12
1
0
1
0
A2
A1
A0
R/W
Slave ID
Page
Select
Figure 4. Slave Address
Word Address
After the FM24C16B (as receiver) acknowledges the
slave ID, the master will place the word address on
the bus for a write operation. The word address is the
lower 8-bits of the address to be combined with the 3-
bits of the page select to specify the exact byte to be
written. The complete 11-bit address is latched
internally.
No word address occurs for a read operation, though
the 3-bit page select is latched internally. Reads
always use the lower 8-bits that are held internally in
the address latch. That is, reads always begin at the
address following the previous access. A random read
address can be loaded by doing a write operation as
explained below.
After transmission of each data byte, just prior to the
acknowledge, the FM24C16B increments the internal
address latch. This allows the next sequential byte to
be accessed with no additional addressing. After the
last address (7FFh) is reached, the address latch will
roll over to 000h. There is no limit on the number of
bytes that can be accessed with a single read or write
operation.
Data Transfer
After all address information has been transmitted,
data transfer between the bus master and the
FM24C16B can begin. For a read operation the
device will place 8 data bits on the bus then wait for
an acknowledge. If the acknowledge occurs, the next
sequential
byte
will
be
transferred.
If
the
acknowledge is not sent, the read operation is
concluded. For a write operation, the FM24C16B will
accept 8 data bits from the master then send an
acknowledge. All data transfer occurs MSB (most
significant bit) first.
Memory Operation
The FM24C16B is designed to operate in a manner
very similar to other 2-wire interface memory
products. The major differences result from the
higher
performance write capability of FRAM
technology. These improvements result in some
differences between the FM24C16B and a similar
configuration EEPROM during writes. The complete
operation for both writes and reads is explained
below.
Write Operation
All writes begin with a slave ID then a word address
as previously mentioned. The bus master indicates a
write operation by setting the LSB of the Slave
Address to a 0. After addressing, the bus master sends
each byte of data to the memory and the memory
generates an acknowledge condition. Any number of
sequential bytes may be written. If the end of the
address range is reached internally, the address
counter will wrap from 7FFh to 000h.
Unlike other nonvolatile memory technologies, there
is no write delay with FRAM. The entire memory
cycle occurs in less time than a single bus clock.
Therefore, any operation including read or write can
occur immediately following a write. Acknowledge
polling,
a
technique
used
with EEPROMs
to
determine if a write is complete is unnecessary and
will always return a ‘ready’ condition.
An actual memory array write occurs after the 8
th data
bit is transferred. It will be complete before the
acknowledge is sent. Therefore, if the user desires to
abort a write without altering the memory contents,
this should be done using start or stop condition prior
to the 8
th data bit. The FM24C16B needs no page
buffering.
The memory array can be write protected using the
WP pin. Pulling WP high will disable writes to the
entire array. The FM24C16B will not acknowledge
data bytes that are written to protected addresses. In
addition, the address counter will not increment if
writes are attempted to these addresses. Pulling WP
low (VSS) will deactivate this feature.
Figure 5 and 6 below illustrate both a single-byte and
multiple-byte write cases.


同様の部品番号 - FM24C16B-GTR

メーカー部品番号データシート部品情報
logo
Ramtron International C...
FM24C16B-GTR RAMTRON-FM24C16B-GTR Datasheet
225Kb / 12P
   16Kb Serial 5V F-RAM Memory
More results

同様の説明 - FM24C16B-GTR

メーカー部品番号データシート部品情報
logo
Cypress Semiconductor
FM25C160B CYPRESS-FM25C160B Datasheet
451Kb / 13P
   16Kb Serial 5V F-RAM Memory
logo
Ramtron International C...
FM25C160C RAMTRON-FM25C160C Datasheet
281Kb / 13P
   16Kb Serial 5V F-RAM Memory
FM24C16C RAMTRON-FM24C16C Datasheet
274Kb / 12P
   16Kb Serial 5V F-RAM Memory
logo
Cypress Semiconductor
FM25C160B CYPRESS-FM25C160B_13 Datasheet
408Kb / 14P
   16Kb Serial 5V F-RAM Memory
logo
Ramtron International C...
FM25C160B RAMTRON-FM25C160B Datasheet
171Kb / 13P
   16Kb Serial 5V F-RAM Memory
FM24C16B RAMTRON-FM24C16B Datasheet
225Kb / 12P
   16Kb Serial 5V F-RAM Memory
logo
Cypress Semiconductor
FM24C16B CYPRESS-FM24C16B_13 Datasheet
341Kb / 13P
   16Kb Serial 5V F-RAM Memory
FM25L16B CYPRESS-FM25L16B_13 Datasheet
432Kb / 15P
   16Kb Serial 3V F-RAM Memory
FM24CL16B CYPRESS-FM24CL16B Datasheet
363Kb / 13P
   16Kb Serial 3V F-RAM Memory
logo
Ramtron International C...
FM24CL16B RAMTRON-FM24CL16B Datasheet
287Kb / 13P
   16Kb Serial 3V F-RAM Memory
More results


Html Pages

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


データシート ダウンロード

Go To PDF Page


リンク URL




プライバシーポリシー
ALLDATASHEET.JP
ALLDATASHEETはお客様のビジネスに役立ちますか?  [ DONATE ] 

Alldatasheetは   |   広告   |   お問い合わせ   |   プライバシーポリシー   |   リンク交換   |   メーカーリスト
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