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PDF CAV24C256 Data sheet ( Hoja de datos )
| Número de pieza | CAV24C256 | |
| Descripción | CMOS Serial EEPROM | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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CAV24C256
256-Kb I2C CMOS Serial
EEPROM
Description
The CAV24C256 is a 256−Kb Serial CMOS EEPROM, internally
organized as 32,768 words of 8 bits each.
It features a 64−byte page write buffer and supports the Standard
(100 kHz), Fast (400 kHz) and Fast−Plus (1 MHz) I2C protocol.
Write operations can be inhibited by taking the WP pin High (this
protects the entire memory).
External address pins make it possible to address up to eight
CAV24C256 devices on the same bus.
On−Chip ECC (Error Correction Code) makes the device suitable
for high reliability applications.
Features
• Automotive Temperature Grade 1 (−40°C to +125°C)
• Supports Standard, Fast and Fast−Plus I2C Protocol
• 2.5 V to 5.5 V Supply Voltage Range
• 64−Byte Page Write Buffer
• Hardware Write Protection for Entire Memory
• Schmitt Triggers and Noise Suppression Filters on I2C Bus Inputs
(SCL and SDA)
• Low Power CMOS Technology
• 1,000,000 Program/Erase Cycles
• 100 Year Data Retention
• 8−lead SOIC and TSSOP Packages
• This Device is Pb−Free, Halogen Free/BFR Free, and RoHS
Compliant
VCC
SCL
A2, A1, A0
WP
CAV24C256
SDA
VSS
Figure 1. Functional Symbol
http://onsemi.com
TSSOP−8
Y SUFFIX
CASE 948AL
SOIC−8
W SUFFIX
CASE 751BD
PIN CONFIGURATION
A0 1
A1
VCC
WP
A2 SCL
VSS SDA
SOIC (W), TSSOP (Y)
For the location of Pin 1, please consult the
corresponding package drawing.
Pin Name
A0, A1, A2
SDA
SCL
WP
VCC
VSS
PIN FUNCTION
Function
Device Address
Serial Data
Serial Clock
Write Protect
Power Supply
Ground
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
© Semiconductor Components Industries, LLC, 2012
November, 2012 − Rev. 0
1
Publication Order Number:
CAV24C256/D
Free Datasheet http://www.datasheet4u.com/
1 page  
CAV24C256
SCL
SDA
START
CONDITION
Figure 2. Start/Stop Timing
STOP
CONDITION
1 0 1 0 A2 A1 A0 R/W
DEVICE ADDRESS
Figure 3. Slave Address Bits
SCL FROM
MASTER
BUS RELEASE DELAY (TRANSMITTER)
18
BUS RELEASE DELAY (RECEIVER)
9
DATA OUTPUT
FROM TRANSMITTER
DATA OUTPUT
FROM RECEIVER
START
ACK DELAY (≤ tAA)
Figure 4. Acknowledge Timing
ACK SETUP (≥ tSU:DAT)
SCL
tSU:STA
SDA IN
tF tHIGH
tLOW
tLOW
tHD:STA
tHD:DAT
tR
tSU:DAT
SDA OUT
tAA tDH
Figure 5. Bus Timing
tSU:STO
tBUF
http://onsemi.com
5
Free Datasheet http://www.datasheet4u.com/
5 Page 
CAV24C256
EXAMPLE OF ORDERING INFORMATION (Notes 10−14)
Device Order Number
Specific
Device
Marking
Package
Type
Temperature Range Lead Finish
Shipping
CAV24C256WE−GT3
24256E
SOIC−8, JEDEC
E = Extended
(−40°C to +125°C)
NiPdAu
Tape & Reel,
3,000 Units / Reel
CAV24C256YE−GT3
C56E
TSSOP−8
E = Extended
(−40°C to +125°C)
NiPdAu
Tape & Reel,
3,000 Units / Reel
10. All packages are RoHS-compliant (Lead-free, Halogen-free).
11. The standard lead finish is NiPdAu.
12. For additional package and temperature options, please contact your nearest ON Semiconductor Sales office.
13. For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
14. For detailed information and a breakdown of device nomenclature and numbering systems, please see the ON Semiconductor Device
Nomenclature document, TND310/D, available at www.onsemi.com
ON Semiconductor is licensed by Philips Corporation to carry the I2C Bus Protocol.
ON Semiconductor and
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks,
copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. SCILLC
reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any
particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without
limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications
and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC
does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for
surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where
personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and
its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly,
any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture
of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT:
Literature Distribution Center for ON Semiconductor
P.O. Box 5163, Denver, Colorado 80217 USA
Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada
Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada
Email: [email protected]
N. American Technical Support: 800−282−9855 Toll Free
USA/Canada
Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81−3−5817−1050
http://onsemi.com
11
ON Semiconductor Website: www.onsemi.com
Order Literature: http://www.onsemi.com/orderlit
For additional information, please contact your local
Sales Representative
CAV24C256/D
Free Datasheet http://www.datasheet4u.com/
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