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CAT24C21UE

Description
EEPROM, 128X8, Serial, CMOS, PDSO8, TSSOP-8
Categorystorage    storage   
File Size78KB,11 Pages
ManufacturerCatalyst
Websitehttp://www.catalyst-semiconductor.com/
Download Datasheet Parametric Compare View All

CAT24C21UE Overview

EEPROM, 128X8, Serial, CMOS, PDSO8, TSSOP-8

CAT24C21UE Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerCatalyst
Parts packaging codeSOIC
package instructionTSSOP, TSSOP8,.25
Contacts8
Reach Compliance Codeunknown
ECCN codeEAR99
Maximum clock frequency (fCLK)0.4 MHz
Data retention time - minimum100
Durability1000000 Write/Erase Cycles
I2C control byte1010XXXR
JESD-30 codeR-PDSO-G8
JESD-609 codee0
length4.4 mm
memory density1024 bit
Memory IC TypeEEPROM
memory width8
Humidity sensitivity level1
Number of functions1
Number of terminals8
word count128 words
character code128
Operating modeSYNCHRONOUS
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
organize128X8
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Encapsulate equivalent codeTSSOP8,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Parallel/SerialSERIAL
Peak Reflow Temperature (Celsius)240
power supply3/5 V
Certification statusNot Qualified
Maximum seat height1.1 mm
Serial bus typeI2C
Maximum standby current0.00001 A
Maximum slew rate0.002 mA
Maximum supply voltage (Vsup)5.5 V
Minimum supply voltage (Vsup)2.5 V
Nominal supply voltage (Vsup)3 V
surface mountYES
technologyCMOS
Temperature levelAUTOMOTIVE
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width3 mm
Maximum write cycle time (tWC)10 ms
Base Number Matches1
Preliminary Information
CAT24C21
1K (128 x 8) -Bit Dual Mode Serial EEPROM for VESA™ "Plug-and-Play"
FEATURES
s
400 kHz I
2
C bus compatible*
s
DDC1
TM
/DDC2
TM
interface compliant for
s
16-byte page write buffer
H
GEN
FR
ALO
EE
LE
A
D
F
R
E
E
TM
s
Self-timed write cycle with auto-clear
s
1,000,000 program/erase cycles
s
100 year data retention
s
8-pin DIP, SOIC, TSSOP or MSOP packages
s
Industrial and extended temperature ranges
monitor identification
s
2.5 to 5.5 volt operation
s
Low power CMOS technology
s
Write protect feature
— Entire array protected when VCLK at V
IL
DESCRIPTION
The CAT24C21 is a 1k-bit Serial CMOS EEPROM
internally organized as 128 words of 8 bits each. The
CAT24C21 can operate in two modes compliant to the
VESA™, DDC1™ and DDC2™ standards for "Plug-
and- Play" monitors. The Transmit-only Mode controlled
by the VCLK input and the bi-directional Mode where the
memories content is controlled by the I
2
C bus, SCL
input. Catalyst’s advanced CMOS technology
substantially reduces device power requirements. The
CAT24C21 features a 16-byte page write buffer. The
device operates via the I
2
C bus serial interface, has a
special write protection feature, and is available in 8-pin
DIP, SOIC, TSSOP and MSOP packages.
PIN CONFIGURATION
DIP Package (P, L)
NC
NC
NC
VSS
1
2
3
4
8
7
6
5
VCC
VCLK
SCL
SDA
BLOCK DIAGRAM
SOIC Package (J, W)
NC
NC
NC
VSS
1
2
3
4
8
7
6
5
VCC
VCLK
SCL
SDA
EXTERNAL LOAD
DOUT
ACK
VCC
VSS
WORD ADDRESS
BUFFERS
COLUMN
DECODERS
SENSE AMPS
SHIFT REGISTERS
MSOP Package (R, Z)
NC
NC
NC
VSS
1
2
3
4
8
7
6
5
VCC
VCLK
SCL
SDA
TSSOP Package (U, Y)
SDA
NC
NC
NC
VSS
1
2
3
4
8
7
6
5
VCC
VCLK
SCL
SDA
START/STOP
LOGIC
XDEC
SCL
CONTROL
LOGIC
EEPROM
PIN FUNCTIONS
Pin Name
NC
SDA
SCL
VCLK
V
CC
V
SS
Function
No Connect
Serial Data/Address
Serial Clock (Bidirectional Mode)
Serial Clock (Transmit only Mode)
+2.5V to +5.5V Power Supply
Ground
VCLK
DATA IN STORAGE
HIGH VOLTAGE/
TIMING CONTROL
* Catalyst Semiconductor is licensed by Philips Corporation to carry the I
2
C Bus Protocol.
© 2003 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 1032, Rev. G

CAT24C21UE Related Products

CAT24C21UE CAT24C21YE CAT24C21JI CAT24C21RI CAT24C21UI CAT24C21RE CAT24C21ZE CAT24C21WE CAT24C21JE
Description EEPROM, 128X8, Serial, CMOS, PDSO8, TSSOP-8 EEPROM, 128X8, Serial, CMOS, PDSO8, LEAD AND HALOGEN FREE, TSSOP-8 EEPROM, 128X8, Serial, CMOS, PDSO8, SOIC-8 EEPROM, 128X8, Serial, CMOS, PDSO8, MSOP-8 EEPROM, 128X8, Serial, CMOS, PDSO8, TSSOP-8 EEPROM, 128X8, Serial, CMOS, PDSO8, MSOP-8 EEPROM, 128X8, Serial, CMOS, PDSO8, LEAD AND HALOGEN FREE, MSOP-8 EEPROM, 128X8, Serial, CMOS, PDSO8, LEAD AND HALOGEN FREE, SOIC-8 EEPROM, 128X8, Serial, CMOS, PDSO8, SOIC-8
Is it lead-free? Contains lead Lead free Contains lead Contains lead Contains lead Contains lead Lead free Lead free Contains lead
Is it Rohs certified? incompatible conform to incompatible incompatible incompatible incompatible conform to conform to incompatible
Parts packaging code SOIC SOIC SOIC MSOP SOIC MSOP MSOP SOIC SOIC
package instruction TSSOP, TSSOP8,.25 TSSOP, TSSOP8,.25 SOP, SOP8,.25 TSSOP, TSSOP8,.19 TSSOP, TSSOP8,.25 TSSOP, TSSOP8,.19 TSSOP, TSSOP8,.19 SOP, SOP8,.25 SOP, SOP8,.25
Contacts 8 8 8 8 8 8 8 8 8
Reach Compliance Code unknown unknow unknow unknown unknown unknown unknown unknown unknown
ECCN code EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Maximum clock frequency (fCLK) 0.4 MHz 0.4 MHz 0.4 MHz 0.4 MHz 0.4 MHz 0.4 MHz 0.4 MHz 0.4 MHz 0.4 MHz
Data retention time - minimum 100 100 100 100 100 100 100 100 100
Durability 1000000 Write/Erase Cycles 1000000 Write/Erase Cycles 1000000 Write/Erase Cycles 1000000 Write/Erase Cycles 1000000 Write/Erase Cycles 1000000 Write/Erase Cycles 1000000 Write/Erase Cycles 1000000 Write/Erase Cycles 1000000 Write/Erase Cycles
I2C control byte 1010XXXR 1010XXXR 1010XXXR 1010XXXR 1010XXXR 1010XXXR 1010XXXR 1010XXXR 1010XXXR
JESD-30 code R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 S-PDSO-G8 R-PDSO-G8 S-PDSO-G8 S-PDSO-G8 R-PDSO-G8 R-PDSO-G8
JESD-609 code e0 e3 e0 e0 e0 e0 e3 e3 e0
length 4.4 mm 4.4 mm 4.9 mm 3 mm 4.4 mm 3 mm 3 mm 4.9 mm 4.9 mm
memory density 1024 bit 1024 bi 1024 bi 1024 bit 1024 bit 1024 bit 1024 bit 1024 bit 1024 bit
Memory IC Type EEPROM EEPROM EEPROM EEPROM EEPROM EEPROM EEPROM EEPROM EEPROM
memory width 8 8 8 8 8 8 8 8 8
Number of functions 1 1 1 1 1 1 1 1 1
Number of terminals 8 8 8 8 8 8 8 8 8
word count 128 words 128 words 128 words 128 words 128 words 128 words 128 words 128 words 128 words
character code 128 128 128 128 128 128 128 128 128
Operating mode SYNCHRONOUS SYNCHRONOUS SYNCHRONOUS SYNCHRONOUS SYNCHRONOUS SYNCHRONOUS SYNCHRONOUS SYNCHRONOUS SYNCHRONOUS
Maximum operating temperature 125 °C 125 °C 85 °C 85 °C 85 °C 125 °C 125 °C 125 °C 125 °C
Minimum operating temperature -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C
organize 128X8 128X8 128X8 128X8 128X8 128X8 128X8 128X8 128X8
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code TSSOP TSSOP SOP TSSOP TSSOP TSSOP TSSOP SOP SOP
Encapsulate equivalent code TSSOP8,.25 TSSOP8,.25 SOP8,.25 TSSOP8,.19 TSSOP8,.25 TSSOP8,.19 TSSOP8,.19 SOP8,.25 SOP8,.25
Package shape RECTANGULAR RECTANGULAR RECTANGULAR SQUARE RECTANGULAR SQUARE SQUARE RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE SMALL OUTLINE
Parallel/Serial SERIAL SERIAL SERIAL SERIAL SERIAL SERIAL SERIAL SERIAL SERIAL
Peak Reflow Temperature (Celsius) 240 260 240 240 240 240 260 260 240
power supply 3/5 V 3/5 V 3/5 V 3/5 V 3/5 V 3/5 V 3/5 V 3/5 V 3/5 V
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height 1.1 mm 1.1 mm 1.75 mm 1.1 mm 1.1 mm 1.1 mm 1.1 mm 1.75 mm 1.75 mm
Serial bus type I2C I2C I2C I2C I2C I2C I2C I2C I2C
Maximum standby current 0.00001 A 0.00001 A 0.000001 A 0.000001 A 0.000001 A 0.00001 A 0.00001 A 0.00001 A 0.00001 A
Maximum slew rate 0.002 mA 0.002 mA 0.002 mA 0.002 mA 0.002 mA 0.002 mA 0.002 mA 0.002 mA 0.002 mA
Maximum supply voltage (Vsup) 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V
Minimum supply voltage (Vsup) 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V
Nominal supply voltage (Vsup) 3 V 3 V 3 V 3 V 3 V 3 V 3 V 3 V 3 V
surface mount YES YES YES YES YES YES YES YES YES
technology CMOS CMOS CMOS CMOS CMOS CMOS CMOS CMOS CMOS
Temperature level AUTOMOTIVE AUTOMOTIVE INDUSTRIAL INDUSTRIAL INDUSTRIAL AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE
Terminal surface Tin/Lead (Sn/Pb) MATTE TIN Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) MATTE TIN MATTE TIN Tin/Lead (Sn/Pb)
Terminal form GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING
Terminal pitch 0.65 mm 0.65 mm 1.27 mm 0.65 mm 0.65 mm 0.65 mm 0.65 mm 1.27 mm 1.27 mm
Terminal location DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature 30 40 30 30 30 30 40 40 30
width 3 mm 3 mm 3.9 mm 3 mm 3 mm 3 mm 3 mm 3.9 mm 3.9 mm
Maximum write cycle time (tWC) 10 ms 10 ms 10 ms 10 ms 10 ms 10 ms 10 ms 10 ms 10 ms
Maker Catalyst Catalyst - Catalyst Catalyst Catalyst Catalyst Catalyst Catalyst
Humidity sensitivity level 1 1 - 1 1 1 1 - -
Base Number Matches 1 1 1 1 1 - - - -
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