24LC22A-I/P Memory by Microchip Technology

2Kb I2C Serial EEPROM for DDC1™/DDC2™ Monitor Identification

Status: Active
Series: 24LC22A
RoHS: Compliant
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The Microchip Technology Inc. 24LC22A is a 256 x 8- bit dual-mode Electrically Erasable PROM. 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 I2C™Compatible 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 Transmit-Only mode after it receives 128 consecutive VCLK pulses while the SCL pin is idle. The 24LC22A is available in standard 8-pin PDIP and SOIC packages.

Where to Buy

Prices starting from US$0.50

Distributor Stock
Logo for Farnell
Farnell
from US$0.58
No stock
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Microchip Technology
from US$0.50
8,113
in stock
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Transfer Multisort Elektronik
from US$0.50
25
in stock
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Logo for Newark Electronics
Newark Electronics
from US$0.60
-
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Logo for Avnet America
Avnet America
from US$0.61
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RS Americas
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Features

Single Supply with Operation Down to 2.5V
Supports Enhanced EDID™ (E-EDID™) 1.3
Completely Implements DDC1™/DDC2™ Interface for Monitor Identification, Including Recovery to DDC1
2 Kbit Serial EEPROM Low-Power CMOS Technology:
2-Wire Serial Interface Bus, I2C™ Compatible
100 kHz (2.5V) and 400 kHz (5V) Compatibility
Self-Timed Write Cycle (including Auto-Erase)
Page-Write Buffer for up to Eight Bytes
1,000,000 Erase/Write Cycles
Data Retention >200 years

Specifications

Density (Organization) 2k bits (x8)
Operating Voltage Min. (V) 2.5
Oper Voltage Max (V) 5.5
Max. Clock Freq. 400 kHz
Page Size (bytes) 8
Write Protected True
Write Protect Scheme None
Endurance 1,000,000
Pins | Packaging 8 | PDIP
Temp Range -40C to +85C
Packing Media Tube (60)

Resources


Application Notes
AN974 - Interfacing I2C™ Serial EEPROMs to PICmicro® Microcontrollers
AN976 - Using the MSSP Module to Interface I2C? Serial EEPROMs with PIC16 Devices
AN979 - Interfacing I2C™ Serial EEPROMs to PIC18 Devices
AN982 - Interfacing I2C Serial EEPROMs to PIC10 and PIC12 Devices
AN989 - Using the MSSP Module to Interface I2C? Serial EEPROMs with PIC18 Devices
AN991 - Using the C18 Compiler and the MSSP to Interface I2C™ EEPROMs with PIC18 Devices
AN997 - Using the C18 Compiler to Interface I2C? Serial EEPROMs with PIC18 Devices
AN1019 - EEPROM Endurance Tutorial
AN1028 - Recommended Usage of Microchip I2C? Serial EEPROM Devices
AN1079 - Using the C30 Compiler and the I2C? Peripheral to Interface Serial EEPROMs with dsPIC33F
AN1100 - Using the C30 Compiler to Interface Serial EEPROMs with dsPIC33F
AN1113 - Using C and a Hardware Module to Interface 8051 MCUs with I2C Serial EEPROMs
AN1147 - Interfacing 8051 MCUs with I2C Serial EEPROMs
AN1190 - Using ASM and a Hardware Module to Interface 8051 MCUs with I2C(TM) Serial EEPROMs
AN1195 - Using C to Interface 8051 MCUs with I2C(TM) Serial EEPROMs
AN1418 - Adding Flexibility by Using Multiple Footprints for I2C Serial EEPROMs



Environmental Information

JEDEC Indicator e3
ROHS Compliant
China EFUP Compliant
Device Weight (g) 0.4867
Shipping Weight (kg) 0.9
Lead Count 8
Package Type PDIP
Package Width or Size .300in
Soldering Composition Matte Tin

Alternative Descriptions

2K VESA E-EDID SERIAL EEPROM, IND | Microchip Technology
IC: EEPROM memory | Transfer Multisort Elektronik
Serial Eeprom, 2Kbit, 400Khz, Dip-8 | Newark Electronics
EEPROM Serial-I2C 2K-bit 256 x 8 3.3V/5V 8-Pin PDIP | Avnet America
Microchip 24LC22A-I/P EEPROM Memory, 2kbit, 3500ns, 4.5 to 5.5 V 8-Pin PDIP | Microchip Technology Inc. 24LC22A-I/P | RS Americas
EEPROM, 2KBIT, -40 TO 85DEG C | Farnell


Frequently Asked Questions

Where can I find additional details, specifications and documents for a 24LC22A-I/P?

Additional datasheets, footprints and schematics for 24LC22A-I/P are listed on our Part Details page. You can also find images and similar parts to 24LC22A-I/P on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for 24LC22A-I/P on our Product Comparison page. Access via the 'View Pricing & Stock' button to view 24LC22A-I/P price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does 24LC22A-I/P fall under?

The 24LC22A-I/P is listed under Semiconductors - ICs > Memory > EEPROM.

Can I view similar or alternative parts?

You can view similar parts to 24LC22A-I/P when available in the EEPROM range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the 24LC22A-I/P you can contact the distributor directly for product support, shipping queries etc.

Is the 24LC22A-I/P RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Microchip Technology.

Which authorised distributors for 24LC22A-I/P have stock available?

Authorised distributors including Microchip Technology, Transfer Multisort Elektronik, Newark Electronics, Avnet America and RS Americas have stock available or on a lead time for 24LC22A-I/P.

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