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

X  

FM24C16A データシート(PDF) 4 Page - Ramtron International Corporation

部品番号 FM24C16A
部品情報  16Kb FRAM Serial Memory
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
メーカー  RAMTRON [Ramtron International Corporation]
ホームページ  http://www.ramtron.com
Logo RAMTRON - Ramtron International Corporation

FM24C16A データシート(HTML) 4 Page - Ramtron International Corporation

  FM24C16A Datasheet HTML 1Page - Ramtron International Corporation FM24C16A Datasheet HTML 2Page - Ramtron International Corporation FM24C16A Datasheet HTML 3Page - Ramtron International Corporation FM24C16A Datasheet HTML 4Page - Ramtron International Corporation FM24C16A Datasheet HTML 5Page - Ramtron International Corporation FM24C16A Datasheet HTML 6Page - Ramtron International Corporation FM24C16A Datasheet HTML 7Page - Ramtron International Corporation FM24C16A Datasheet HTML 8Page - Ramtron International Corporation FM24C16A Datasheet HTML 9Page - Ramtron International Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 12 page
background image
FM24C16A
Rev 3.0
Mar. 2005
Page 4 of 12
Stop
(Master)
Start
(Master)
7
Data bits
(Transmitter)
6
0
Data bit
(Transmitter)
Acknowledge
(Receiver)
SCL
SDA
Figure 3. Data Transfer Protocol
Stop Condition
A stop condition is indicated when the bus master
drives SDA from low to high while the SCL signal is
high. All operations using the FM24C16A must end
with a Stop condition. If an operation is pending
when a Stop is asserted, the operation will be aborted.
The master must have control of SDA (not a memory
read) in order to assert a Stop condition.
Start Condition
A Start condition is indicated when the bus master
drives SDA from high to low while the SCL signal is
high. All read and write transactions begin with a
Start condition. An operation in progress can be
aborted by asserting a Start condition at any time.
Aborting an operation using the Start condition will
prepare the FM24C16A for a new operation.
If during operation the power supply drops below the
specified VDD minimum, the system should issue a
Start condition prior to performing another operation.
Data/Address Transfer
All data transfers (including addresses) take place
while the SCL signal is high. Except under the two
conditions described above, the SDA signal should
not change while SCL is high. For system design
considerations, keeping SCL in a low state while idle
improves robustness.
Acknowledge
The Acknowledge takes place after the 8
th data bit has
been transferred in any transaction. During this state,
the transmitter should release the SDA bus to allow
the receiver to drive it. The receiver drives the SDA
signal low to acknowledge receipt of the byte. If the
receiver does not drive SDA low, the condition is a
No-Acknowledge and the operation is aborted.
The receiver would fail to acknowledge for two
distinct reasons. First is that a byte transfer fails. In
this case, the No-Acknowledge ends the current
operation so that the part can be addressed again.
This allows the last byte to be recovered in the event
of a communication error.
Second and most common, the receiver does not
acknowledge to deliberately end an operation. For
example, during a read operation, the FM24C16A
will continue to place data onto the bus as long as the
receiver sends Acknowledges (and clocks). When a
read operation is complete and no more data is
needed, the receiver must not acknowledge the last
byte. If the receiver acknowledges the last byte, this
will cause the FM24C16A to attempt to drive the bus
on the next clock while the master is sending a new
command such as a Stop.
Slave Address
The first byte that the FM24C16A expects after a
Start condition is the slave address. As shown in
Figure 4, the slave address contains the device type,
the page of memory to be accessed, and a bit that
specifies if the transaction is a read or a write.
Bits 7-4 are the device type and should be set to
1010b for the FM24C16A. The device type allows
other types of functions to reside on the 2-wire bus
within an identical address range. Bits 3-1 are the
page select. They specify the 256-byte block of
memory that is targeted for the current operation. Bit
0 is the read/write bit. A 0 indicates a write operation.


同様の部品番号 - FM24C16A

メーカー部品番号データシート部品情報
logo
List of Unclassifed Man...
FM24C16A ETC1-FM24C16A Datasheet
93Kb / 13P
   16Kb FRAM Serial Memory
FM24C16A-S ETC1-FM24C16A-S Datasheet
93Kb / 13P
   16Kb FRAM Serial Memory
More results

同様の説明 - FM24C16A

メーカー部品番号データシート部品情報
logo
List of Unclassifed Man...
FM25160 ETC-FM25160 Datasheet
638Kb / 14P
   16Kb FRAM Serial Memory
FM24C16A ETC1-FM24C16A Datasheet
93Kb / 13P
   16Kb FRAM Serial Memory
FM25C160 ETC1-FM25C160 Datasheet
154Kb / 14P
   16Kb FRAM Serial Memory
logo
Ramtron International C...
FM25C160 RAMTRON-FM25C160 Datasheet
149Kb / 13P
   16Kb FRAM Serial Memory
logo
List of Unclassifed Man...
FM24CL16 ETC-FM24CL16 Datasheet
90Kb / 13P
   16Kb FRAM Serial 3V Memory
FM25L16 ETC-FM25L16 Datasheet
149Kb / 14P
   16Kb FRAM Serial 3V Memory
logo
Ramtron International C...
FM25L16 RAMTRON-FM25L16_06 Datasheet
146Kb / 14P
   16Kb FRAM Serial 3V Memory
FM24CL16 RAMTRON-FM24CL16_05 Datasheet
107Kb / 13P
   16Kb FRAM Se rial 3V Memory
FM24CL04 RAMTRON-FM24CL04_05 Datasheet
116Kb / 11P
   4Kb FRAM Serial Memory
FM25640 RAMTRON-FM25640 Datasheet
131Kb / 14P
   64Kb FRAM Serial 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