CAT24C21UI datasheet, PDF - EEWORLD Datasheet

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CAT24C21UI: DescriptionEEPROM, 128X8, Serial, CMOS, PDSO8, TSSOP-8; Categorystorage storage; File Size78KB，11 Pages; ManufacturerCatalyst; Websitehttp://www.catalyst-semiconductor.com/

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CAT24C21UI Overview

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

CAT24C21UI Parametric

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

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Preliminary Information

CAT24C21

1K (128 x 8) -Bit Dual Mode Serial EEPROM for VESA™ "Plug-and-Play"

FEATURES

400 kHz I

C bus compatible*

DDC1

/DDC2

interface compliant for

16-byte page write buffer

GEN

ALO

Self-timed write cycle with auto-clear

1,000,000 program/erase cycles

100 year data retention

8-pin DIP, SOIC, TSSOP or MSOP packages

Industrial and extended temperature ranges

monitor identification

2.5 to 5.5 volt operation

Low power CMOS technology

Write protect feature

— Entire array protected when VCLK at V

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

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

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)

VSS

VCC

VCLK

SCL

SDA

BLOCK DIAGRAM

SOIC Package (J, W)

VSS

VCC

VCLK

SCL

SDA

EXTERNAL LOAD

DOUT

ACK

VCC

VSS

WORD ADDRESS

BUFFERS

COLUMN

DECODERS

SENSE AMPS

SHIFT REGISTERS

MSOP Package (R, Z)

VSS

VCC

VCLK

SCL

SDA

TSSOP Package (U, Y)

SDA

VSS

VCC

VCLK

SCL

SDA

START/STOP

LOGIC

XDEC

SCL

CONTROL

LOGIC

EEPROM

PIN FUNCTIONS

Pin Name

SDA

SCL

VCLK

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

C Bus Protocol.

Characteristics subject to change without notice

Doc. No. 1032, Rev. G

CAT24C21UI Related Products

	CAT24C21UI	CAT24C21YE	CAT24C21JI	CAT24C21RI	CAT24C21UE	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	85 °C	125 °C	85 °C	85 °C	125 °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	0.000001 A	0.00001 A	0.000001 A	0.000001 A	0.00001 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	INDUSTRIAL	AUTOMOTIVE	INDUSTRIAL	INDUSTRIAL	AUTOMOTIVE	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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