24LCS22AT-I/SN datasheet, PDF - EEWORLD Datasheet

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24LCS22AT-I/SN: Description256 X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8; Categorystorage storage; File Size347KB，26 Pages; ManufacturerMicrochip; Websitehttps://www.microchip.com; Environmental Compliance

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24LCS22AT-I/SN Overview

256 X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8

24LCS22AT-I/SN Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Parts packaging code	SOIC
package instruction	3.90 MM, ROHS COMPLIANT, PLASTIC, SOIC-8
Contacts	8
Reach Compliance Code	compli
ECCN code	EAR99
Factory Lead Time	12 weeks
Maximum clock frequency (fCLK)	0.1 MHz
Data retention time - minimum	200
Durability	1000000 Write/Erase Cycles
I2C control byte	1010000R
JESD-30 code	R-PDSO-G8
JESD-609 code	e3
length	4.9 mm
memory density	2048 bi
Memory IC Type	EEPROM
memory width	8
Humidity sensitivity level	3
Number of functions	1
Number of terminals	8
word count	256 words
character code	256
Operating mode	SYNCHRONOUS
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
organize	256X8
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Encapsulate equivalent code	SOP8,.25
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Parallel/Serial	SERIAL
Peak Reflow Temperature (Celsius)	260
power supply	3/5 V
Certification status	Not Qualified
Maximum seat height	1.75 mm
Serial bus type	I2C
Maximum standby current	0.00003 A
Maximum slew rate	0.003 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	Matte Tin (Sn)
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	40
width	3.9 mm
Maximum write cycle time (tWC)	10 ms
write protect	HARDWARE
Base Number Matches	1

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24LCS22A

2K VESA

E-EDID

™

Serial EEPROM

Features:

• Single Supply with Operation down to 2.5V

• Supports Enhanced EDID

™

(E-EDID

™

) 1.3

• Completely Implements DDC1

™

/DDC2

™

Inter-

face for Monitor Identification, including Recovery

to DDC1

• 2 Kbit Serial EEPROM Low-Power CMOS

Technology:

- 1 mA active current, typical

- 10

μA

standby current, typical at 5.5V

• 2-Wire Serial Interface Bus, I

™

Compatible

• 100 kHz (2.5V) and 400 kHz (5V) Compatibility

• Self-Timed Write Cycle (including Auto-Erase)

• Hardware Write-Protect Pin

• Page Write Buffer for up to Eight Bytes

• 1,000,000 Erase Write Cycles

• Data Retention >200 years

• ESD Protection >4000V

• 8-pin PDIP and SOIC Packages

• Available Temperature Ranges:

- Industrial (I)

-40°C to +85°C

• Pb-Free and RoHS Compliant

Package Types

PDIP/SOIC

*NC

24LCS22A

VCLK

SCL

SDA

* Pins labeled ‘NC’ have no internal connection

Block Diagram

HV Generator

I/O

Control

Logic

Memory

Control

Logic

XDEC

EEPROM

Array

Page Latches

Description:

The Microchip Technology Inc. 24LCS22A is a 256 x 8-bit

dual-mode Electrically Erasable PROM (EEPROM). This

device is designed for use in applications requiring

storage and serial transmission of configuration and

control information. Two modes of operation have been

implemented: Transmit-Only mode (1 Kbit) and

Bidirectional mode (2 Kbit). Upon power-up, the device

will be in the Transmit-Only mode, sending a serial bit

stream of the memory array from 00h to 7Fh, clocked by

the VCLK pin. A valid high-to-low transition on the SCL pin

will cause the device to enter the Transition mode, and

look for a valid control byte on the I

C bus. If it detects a

valid control byte from the master, it will switch into

Bidirectional mode, with byte selectable read/write

capability of the entire 2K memory array using SCL. If no

control byte is received, the device will revert to the Trans-

mit-Only mode after it receives 128 consecutive VCLK

pulses while the SCL pin is idle. The 24LCS22A is avail-

able in standard 8-pin PDIP and SOIC packages. The

24LCS22A features a flexible write-protect pin which is

enabled by writing to address 7Fh (usually the checksum

in VESA

applications.

SDA

SCL

YDEC

VCLK

Vcc

Vss

Sense Amp.

R/W Control

2009 Microchip Technology Inc.

DS21682E-page 1

24LCS22AT-I/SN Related Products

	24LCS22AT-I/SN	24LCS22AT-I/P	24LCS22A_09	24LCS22AT	24LCS22A	24LCS22A-I/P
Description	256 X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8	256 X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8	256 X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8	256 X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8	256 X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8	256 X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8
memory width	8	8	8	8	8	8
Number of functions	1	1	1	1	1	1
Number of terminals	8	8	8	8	8	8
Maximum operating temperature	85 °C	85 Cel	85 Cel	85 Cel	85 Cel	85 °C
Minimum operating temperature	-40 °C	-40 Cel	-40 Cel	-40 Cel	-40 Cel	-40 °C
organize	256X8	256 X 8	256 X 8	256 X 8	256 X 8	256X8
surface mount	YES	Yes	Yes	Yes	Yes	NO
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	THROUGH-HOLE
Terminal location	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
Maximum supply/operating voltage	-	5.5 V	5.5 V	5.5 V	5.5 V	-
Minimum supply/operating voltage	-	2.5 V	2.5 V	2.5 V	2.5 V	-
Rated supply voltage	-	3 V	3 V	3 V	3 V	-
maximum clock frequency	-	0.1000 MHz	0.1000 MHz	0.1000 MHz	0.1000 MHz	-
Processing package description	-	3.90 MM, ROHS COMPLIANT, PLASTIC, SOIC-8	3.90 MM, ROHS COMPLIANT, PLASTIC, SOIC-8	3.90 MM, ROHS COMPLIANT, PLASTIC, SOIC-8	3.90 MM, ROHS COMPLIANT, PLASTIC, SOIC-8	-
Lead-free	-	Yes	Yes	Yes	Yes	-
EU RoHS regulations	-	Yes	Yes	Yes	Yes	-
China RoHS regulations	-	Yes	Yes	Yes	Yes	-
state	-	ACTIVE	ACTIVE	ACTIVE	ACTIVE	-
Craftsmanship	-	CMOS	CMOS	CMOS	CMOS	-
packaging shape	-	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	-
Package Size	-	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	-
Terminal spacing	-	1.27 mm	1.27 mm	1.27 mm	1.27 mm	-
terminal coating	-	MATTE TIN	MATTE TIN	MATTE TIN	MATTE TIN	-
Packaging Materials	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	-
storage density	-	2048 deg	2048 deg	2048 deg	2048 deg	-
operating mode	-	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	-
Number of digits	-	256	256	256	256	-
Memory IC type	-	I2C/2-WIRE SERIAL EEPROM	I2C/2-WIRE SERIAL EEPROM	I2C/2-WIRE SERIAL EEPROM	I2C/2-WIRE SERIAL EEPROM	-
serial parallel	-	SERIAL	SERIAL	SERIAL	SERIAL	-
Maximum TWC of write cycle	-	10 ms	10 ms	10 ms	10 ms	-

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