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CAT24C21WI-TE13REVB

Description
EEPROM, 128X8, Serial, CMOS, PDSO8, LEAD AND HALOGEN FREE, SOIC-8
Categorystorage    storage   
File Size79KB,12 Pages
ManufacturerCatalyst
Websitehttp://www.catalyst-semiconductor.com/
Environmental Compliance
Download Datasheet Parametric View All

CAT24C21WI-TE13REVB Overview

EEPROM, 128X8, Serial, CMOS, PDSO8, LEAD AND HALOGEN FREE, SOIC-8

CAT24C21WI-TE13REVB Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerCatalyst
Parts packaging codeSOIC
package instructionSOP,
Contacts8
Reach Compliance Codeunknown
ECCN codeEAR99
Maximum clock frequency (fCLK)0.4 MHz
JESD-30 codeR-PDSO-G8
JESD-609 codee3
length4.9 mm
memory density1024 bit
Memory IC TypeEEPROM
memory width8
Number of functions1
Number of terminals8
word count128 words
character code128
Operating modeSYNCHRONOUS
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
organize128X8
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Parallel/SerialSERIAL
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height1.75 mm
Serial bus typeI2C
Maximum supply voltage (Vsup)5.5 V
Minimum supply voltage (Vsup)2.5 V
Nominal supply voltage (Vsup)3 V
surface mountYES
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceMATTE TIN
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperature40
width3.9 mm
Maximum write cycle time (tWC)5 ms
Base Number Matches1
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
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