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AT24C256W-10SC-1.8 其他数据使用手册 - Microchip(微芯)
制造商:
Microchip(微芯)
分类:
存储芯片
封装:
SOIC-8
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AT24C256W-10SC-1.8数据手册
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© Semiconductor Components Industries, LLC, 2014
January, 2014 − Rev. 14
1 Publication Order Number:
CAT24C256/D
CAT24C256
256 kb I
2
C CMOS Serial
EEPROM
Description
The CAT24C256 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) I
2
C 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
CAT24C256 devices on the same bus.
On−Chip ECC (Error Correction Code) makes the device suitable
for high reliability applications.*
Features
• Supports Standard, Fast and Fast−Plus I
2
C Protocol
• 1.8 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 I
2
C Bus Inputs
(SCL and SDA)
• Low Power CMOS Technology
• 1,000,000 Program/Erase Cycles
• 100 Year Data Retention
• Industrial and Extended Temperature Range
• PDIP, SOIC, TSSOP, MSOP 8−Lead and
TDFN, UDFN 8−Pad Packages
• This Device is Pb−Free, Halogen Free/BFR Free, and RoHS
Compliant
Figure 1. Functional Symbol
SDA
SCL
WP
CAT24C256
V
CC
V
SS
A
2
, A
1
, A
0
* Available for New Product (Rev. E)
http://onsemi.com
PIN CONFIGURATION
SDA
WP
V
CC
V
SS
A
2
A
1
A
0
1
See detailed ordering and shipping information in the package
dimensions section on page 18 of this data sheet.
ORDERING INFORMATION
SOIC−8
W SUFFIX
CASE 751BD
SOIC−8
X SUFFIX
CASE 751BE
SCL
PDIP (L), SOIC (W, X), TSSOP (Y),
TDFN (ZD2)**, UDFN (HU4), MSOP (Z)
PDIP−8
L SUFFIX
CASE 646AA
TSSOP−8
Y SUFFIX
CASE 948AL
Device AddressA
0
, A
1
, A
2
Serial DataSDA
Serial ClockSCL
Write ProtectWP
Power SupplyV
CC
GroundV
SS
FunctionPin Name
†
PIN FUNCTION
For the location of Pin 1, please consult the
corresponding package drawing.
TDFN−8**
ZD2 SUFFIX
CASE 511AM
UDFN−8
HU4 SUFFIX
CASE 517AZ
** Not recommended for new designs
MSOP−8
Z SUFFIX
CASE 846AD
†The exposed pad for the TDFN/UDFN packages can
be left floating or connected to Ground.
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