EEWORLDEEWORLDEEWORLD

Part Number

Search

CAT24C21WITE13

Description
0.5 BTB STR REC HSG 529910708 RoHS Compliant: Yes
File Size66KB,12 Pages
ManufacturerCatalyst
Websitehttp://www.catalyst-semiconductor.com/
Download Datasheet View All

CAT24C21WITE13 Overview

0.5 BTB STR REC HSG 529910708 RoHS Compliant: Yes

CAT24C21
1-kb Dual Mode Serial EEPROM for VESA™ "Plug-and-Play"
FEATURES
s
DDC1
TM
/DDC2
TM
interface compliant for
s
Low power CMOS technology
s
1,000,000 program/erase cycles
s
100 year data retention
H
GEN
FR
ALO
EE
LE
A
D
F
R
E
E
TM
monitor identification
s
400 kHz I C bus compatible*
s
2.5 to 5.5 volt operation
s
16-byte page write buffer
s
Hardware write protect
2
s
8-pin DIP, SOIC, TSSOP, MSOP or TDFN
packages
s
Industrial temperature range
DESCRIPTION
The CAT24C21 is a 1-kb Serial CMOS EEPROM
internally organized as 128 words of 8 bits each. The
device complies with the Video Electronics Standard
Association's (VESA™), Display Data Channel (DDC™)
standards for "Plug-and-Play" monitors. The "transmit-
only" mode (DDC1™) is controlled by the VCLK clock
input and the "bi-directional" mode (DDC2™) is controlled
by the SCL clock input, with both modes sharing a
common SDA input/output (I/O). The transmit-only mode
is a read-only mode, while the bi-directional mode is a
read and write mode following the I
2
C protocol. In write
mode the CAT24C21 features a 16-byte page write
buffer. The device is available in 8-in DIP, SOIC, TSSOP,
MSOP and TDFN packages.
PIN CONFIGURATION
DIP Package (P, L)
NC
NC
NC
VSS
1
2
3
4
8
7
6
5
VCC
VCLK
SCL
SDA
FUNCTIONAL SYMBOL
SOIC Package (J, W)
NC
NC
NC
VSS
1
2
3
4
8
7
6
5
VCC
VCLK
SCL
SDA
SCL
VCC
CAT24C21
SDA
MSOP Package (R, Z)
NC
NC
NC
VSS
1
2
3
4
8
7
6
5
VCC
VCLK
SCL
SDA
TDFN Package (RD4, ZD4)
VCLK
NC
1
NC
2
NC
3
VSS
4
8
VCC
7
VCLK
6
SCL
5
SDA
VSS
3 mm x 3 mm
Top View
PIN FUNCTIONS
Pin Name
NC
SDA
SCL
VCLK
V
CC
Function
No Connect
Serial Data/Address
Serial Clock (bi-directional mode)
Serial Clock (transmit-only mode)
Power Supply
Ground
TSSOP Package (U, Y)
NC
NC
NC
VSS
1
2
3
4
8
7
6
5
VCC
VCLK
SCL
SDA
* Catalyst Semiconductor is licensed by Philips Corporation to carry the I
2
C Bus
Protocol.
V
SS
© 2004 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 1032, Rev. O
About MCU Review
Teacher, I have some questions for you in the microcontroller review. For an 8051 microcontroller application system, its clock frequency is known to be 6MHz. It is necessary to set the internal timer...
ydq15075019 MCU
Why programmers always get shot
As title...
白丁 Talking
Can the arm9 development board access the Internet using a wireless network card?
I have an arm9 development board but it doesn't have a 3g module integrated, but it has a USB interface. Can I connect it to the wireless network card through USB and then I can access the Internet? D...
evinsheng ARM Technology
After FPGA synthesis, a fatal warning appeared:
Timing requirements for slow timing model timing analysis were not met The minimum slack time is a negative value. How can I change it?...
shumin748646 FPGA/CPLD
Circuit diagram help
Hi guys, I want to ask, DB0~DB7 of the microcontroller is connected to the buffer from the decimal counter output Q0`Q7 and then input to the microcontroller, and on the other hand, the output of an A...
小可姐 51mcu
My little sister is waiting online, and she will give me points
Hey guys, I'm a newbie, I'm new here, please help me!! Woo~~~~~~~~~~~~~I have a paper with a small program that needs to run on VXWORKS, I just installed TORNADO2.2, how can I use VXSIM simulator to d...
sspoqss Embedded System

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 1469  2777  2252  2265  2810  30  56  46  57  22 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号