24LCS22A_09 datasheet, PDF - EEWORLD Datasheet

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24LCS22A_09: Description256 X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8; Categorystorage; File Size347KB，26 Pages; ManufacturerMicrochip; Websitehttps://www.microchip.com

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24LCS22A_09 Overview

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

24LCS22A_09 Parametric

Parameter Name	Attribute value
Number of functions	1
Number of terminals	8
Maximum operating temperature	85 Cel
Minimum operating temperature	-40 Cel
Maximum supply/operating voltage	5.5 V
Minimum supply/operating voltage	2.5 V
Rated supply voltage	3 V
maximum clock frequency	0.1000 MHz
Processing package description	3.90 MM, ROHS COMPLIANT, PLASTIC, SOIC-8
Lead-free	Yes
EU RoHS regulations	Yes
China RoHS regulations	Yes
state	ACTIVE
Craftsmanship	CMOS
packaging shape	RECTANGULAR
Package Size	SMALL OUTLINE
surface mount	Yes
Terminal form	GULL WING
Terminal spacing	1.27 mm
terminal coating	MATTE TIN
Terminal location	DUAL
Packaging Materials	PLASTIC/EPOXY
Temperature level	INDUSTRIAL
memory width	8
organize	256 X 8
storage density	2048 deg
operating mode	SYNCHRONOUS
Number of digits	256 words
Number of digits	256
Memory IC type	I2C/2-WIRE SERIAL EEPROM
serial parallel	SERIAL
Maximum TWC of write cycle	10 ms

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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

24LCS22A_09 Related Products

	24LCS22A_09	24LCS22AT-I/SN	24LCS22AT-I/P	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
Number of functions	1	1	1	1	1	1
Number of terminals	8	8	8	8	8	8
Maximum operating temperature	85 Cel	85 °C	85 Cel	85 Cel	85 Cel	85 °C
Minimum operating temperature	-40 Cel	-40 °C	-40 Cel	-40 Cel	-40 Cel	-40 °C
surface mount	Yes	YES	Yes	Yes	Yes	NO
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	THROUGH-HOLE
Terminal location	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
memory width	8	8	8	8	8	8
organize	256 X 8	256X8	256 X 8	256 X 8	256 X 8	256X8
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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