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Part Name(s) : AK6003A AK6003AV AKM
Asahi Kasei Microdevices
Description : Software Write Protect I2C bus 2Kbit EEPROM View

General Description
The AK6003A is a 2048-bit serial CMOS E2PROM divided into 256 registers of 8 bits each. The AK6003A can operate full function under wide operating voltage range from 1.8V to 5.5V. The charge up circuit is integrated for high voltage generation that is used for Write operation.

Features
□ ADVANCED CMOS EEPROM TECHNOLOGY
□ READ/Write NON-VOLATILE MEMORY
□ WIDE VCC OPERATION ... Vcc = 1.8V  5.5V
□ 2048 bits, 256x8 organization
I2CTM SERIAL INTERFACE
□ LOW POWER CONSUMPTION
    - 0.8μA Max. Standby
□ HIGH RELIABILITY
    - Endurance : 100K cycles
    - Data Retention : 10 years
□ 16 byte page Write mode
Software Write Protection (lower 128 bytes)
    Hardware Write Protection (entire array)
□ Automatic Write cycle time-out with auto-ERASE
□ IDEAL FOR LOW DENSITY DATA STORAGE
    - Low cost, space saving, 8-pin package (TSSOP)

Part Name(s) : BR34L02-W BR34L02FV-WE2 BR34L02FVT-WE2 ROHM
ROHM Semiconductor
Description : 2Kbit Serial I2C bus EEPROM For SPD DRAM Memory Module View

●DESCRIPTION

BR34L02-W is 2Kbit Serial I2C bus Electrically Erasable PROM (based on Serial Presence Detect) for DRAM Memory Module





●FEATURES

256×8 bit architecture serial EEPROM

Wide operating voltage range (1.7V~5.5V)

Two wire serial interface

High reliability connection of Au pad and Au wire

Self-Timed Erase and Write Cycle

Page Write Function(16byte)

Write Protect Mode

  Write Protect 1(Onetime Rom)  : 00h~7Fh

  Write Protect 2(Hardwire WP PIN)    :   00h~FFh

Low Power consumption

   Write  ( 5V )  :  1.2mA (Typ.)

   Read  ( 5V )  :  0.2mA(Typ.)

   Standby   ( 5V )  :  0.1μA(Typ.)

DATA security

  Write Protect feature (WP pin)

  Inhibit to Write at low VCC

Small package ------ SSOP-B8/TSSOP-B8

High reliability fine pattern CMOS technology

Endurance : 1,000,000 erase / Write cycles

Data retention : 40 years

Filtered inputs in SCL / SDA for noise suppression

Initial data FFh in all address


Part Name(s) : AT34C02B AT34C02BN-10SU-1.7 AT34C02B-10TU-1.7 AT34C02BY6-10YH-1.7 AT34C02BU3-10UU-1.7 Atmel
Atmel Corporation
Description : Two-wire Serial EEPROM with Permanent and Reversible Software Write Protect View

Description
The AT34C02B provides 2048 bits of serial electrically-erasable and programmable read only memory (EEPROM) organized as 256 words of 8 bits each. The first-half of the device incorporates a permanent and a reversible Software Write Protection feature while hardware Write Protection for the entire array is available via an external pin. Once the permanent Software Write Protection is enabled, by sending a special command to the device, it cannot be reversed. However, the reversible Software Write Protection is enabled and can be reversed by sending a special command. The hard ware Write Protection is controlled with the WP pin and can be used to Protect the entire array, whether or not the Software Write Protection has been enabled. This allows the user to Protect none, first-half, or all of the array depending on the application. The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operations are essential. The AT34C02B is available in space saving 8-lead JEDEC SOIC, 8-lead Ultra Thin Mini-MAP (MLP 2x3), 8-lead TSSOP, and 8-ball dBGA2 packages and is accessed via a Two-wire serial interface. It is available in 1.7V (1.7V to 3.6V).

Features
• Permanent and Reversible Software Write Protection for the First-half of the Array
   – Software Procedure to Verify Write Protect Status
• Hardware Write Protection for the Entire Array
• Low-voltage and Standard-voltage Operation
   – 1.7 (VCC = 1.7V to 3.6V)
• Internally Organized 256 x 8
• Two-wire Serial Interface
• Schmitt Trigger, Filtered Inputs for Noise Suppression
• Bidirectional Data Transfer Protocol
• 100 kHz (1.7V) and 400 kHz (2.7V and 3.6V) Compatibility
• 16-byte Page Write Modes
• Partial Page Writes Are Allowed
• Self-timed Write Cycle (5 ms max)
• High-reliability
   – Endurance: 1 Million Write CycleLButtons
   – Data Retention: 100 Years
• 8-lead JEDEC SOIC, 8-lead Ultra Thin Mini-MAP (MLP 2x3), 8-lead TSSOP, and 8-ball dBGA2 Packages

Part Name(s) : AT34C02C AT34C02CN-SP25-B AT34C02CN-SP25-T AT34C02C-TP25-B AT34C02C-TP25-T Atmel
Atmel Corporation
Description : Two-wire Automotive Temperature Serial EEPROM with Permanent and Reversible Software Write Protect View

Description
The AT34C02C provides 2048 bits of serial electrically-erasable and programmable read only memory (EEPROM) organized as 256 words of 8 bits each. The first-half of the device incorporates a permanent and a reversible Software Write Protection feature while hardware Write Protection for the entire array is available via an external pin. Once the permanent Software Write Protection is enabled, by sending a special command to the device, it cannot be reversed. However, the reversible Software Write Protection is enabled and can be reversed by sending a special command. The hardware Write Protection is controlled with the WP pin and can be used to Protect the entire array, whether or not the Software Write Protection has been enabled. This allows the user to Protect none, first-half, or all of the array depending on the application. The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operations are essential. The AT34C02C is available in space saving 8-lead JEDEC SOIC and 8-lead TSSOP packages and is accessed via a Two-wire serial interface. It is available in 2.5V (2.5V to 5.5V).

Features
• Permanent and Reversible Software Write Protection for the First-half of the Array
   – Software Procedure to Verify Write Protect Status
• Hardware Write Protection for the Entire Array
• Standard-voltage Operation
   – 2.5 (VCC = 2.5V to 5.5V)
• Internally Organized 256 x 8
• Two-wire Serial Interface
• Schmitt Trigger, Filtered Inputs for Noise Suppression
• Bidirectional Data Transfer Protocol
• 400 kHz (2.5V and 5.5V) Compatibility
• 16-byte Page Write Modes
• Partial Page Writes Are Allowed
• Self-timed Write Cycle (5 ms max)
• High-reliability
   – Endurance: 1 Million Write Cycles
   – Data Retention: 100 Years
• 8-lead JEDEC SOIC and 8-lead TSSOP Packages


Part Name(s) : AT34C02C-TH-B AT34C02C-TH-T AT34C02CN-SH-B AT34C02CN-SH-T AT34C02CU3-UU-T AT34C02CY6-YH-T AT34C02C_06 AT34C02C_08 AT34C02CN-SH-B AT34C02CN-SH-T Atmel
Atmel Corporation
Description : Two-wire Serial EEPROM with Permanent and Reversible Software Write Protect View

Description
The AT34C02C provides 2048 bits of serial electrically-erasable and programmable read only memory (EEPROM) organized as 256 words of 8 bits each. The first-half of the device incorporates a permanent and a reversible Software Write Protection feature while hardware Write Protection for the entire array is available via an external pin. Once the permanent Software Write Protection is enabled, by sending a special command to the device, it cannot be reversed. However, the reversible Software Write Protection is enabled and can be reversed by sending a special command. The hardware Write Protection is controlled with the WP pin and can be used to Protect the entire array, whether or not the Software Write Protection has been enabled. This allows the user to Protect none, first-half, or all of the array depending on the application. The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operations are essential. The AT34C02C is available in space saving 8-lead JEDEC SOIC, 8-lead Ultra Thin Mini-MAP (MLP 2x3), 8-lead TSSOP, and 8-ball dBGA2 packages and is accessed via a Two-wire serial interface.
It is available in 1.7V (1.7V to 5.5V).

Features
• Permanent and Reversible Software Write Protection for the First-half of the Array
   – Software Procedure to Verify Write Protect Status
• Hardware Write Protection for the Entire Array
• Low-voltage and Standard-voltage Operation
   – 1.7 (VCC = 1.7V to 3.6V)
• Internally Organized 256 x 8
• Two-wire Serial Interface
• Schmitt Trigger, Filtered Inputs for Noise Suppression
• Bidirectional Data Transfer Protocol
• 100 kHz (1.7V) and 400 kHz (2.7V and 3.6V) Compatibility
• 16-byte Page Write Modes
• Partial Page Writes Are Allowed
• Self-timed Write Cycle (5 ms max)
• High-reliability
   – Endurance: 1 Million Write Cycles
   – Data Retention: 100 Years
• 8-lead JEDEC SOIC, 8-lead Ultra Thin Mini-MAP (MLP 2x3), 8-lead TSSOP, and 8-ball
   dBGA2 Packages

Part Name(s) : 24C256 Fairchild
Fairchild Semiconductor
Description : 256 KBit 2-Wire bus Interface Serial EEPROM with Write Protect View

General Description

The FM24C256/C256L/C256LZ devices are 256 Kbits CMOS nonvolatile electrically erasable memory. These devices offer the designer different low voltage and low power options. They conform to all requirements in the Extended IIC 2-wire protocol. Furthermore, they are designed to minimize device pin count and simplify PC board layout requirements.



Features

• Extended Operating Voltages

— C256: 4.5V - 5.5V

— C256L: 2.7V - 5.5V

— C256LZ: 2.7V - 5.5V

• Low Power CMOS

— 1mA active current typical

— C256/C256L: 10µA standby current typical

— C256LZ: less than 1µA standby current

• 2-wire IIC serial interface

• 64 byte page Write mode

• Max Write cycle time of 6ms byte/page

• 40 years data retention

• Endurance: 100,000 data changes

• Hardware Write Protect for entire array

• Schmitt trigger inputs for noise suppression

• Electrostatic discharge Protection > 4000V

• 8-pin DIP and 8-pin SO (150 mil) packages. Contact factory for CSP package availability


Part Name(s) : FM34W02U FM34W02UE FM34W02UL FM34W02ULZ FM34W02UM8 FM34W02UMT8 FM34W02UEM8 FM34W02UEMT8 FM34W02ULM8 FM34W02ULMT8 Fairchild
Fairchild Semiconductor
Description : 2K-Bit Standard 2-Wire bus Interface Serial EEPROM with Full Array Write Protect View

General Description
The FM34W02U is 2048 bits of CMOS non-volatile electrically erasable memory. This device is specifically designed to support Serial Presence Detect circuitry in memory modules. This communications protocol uses CLOCK (SCL) and DATA I/O (SDA) lines to synchronously clock data between the master (for example a microprocessor) and the slave EEPROM device(s).

Features
■ PC100/PC133 Compliant
■ Extended Operating Voltage: 2.7V-5.5V
Software Write-Protection for first 128 bytes
■ Hardware Write-Protection for entire memory array
■ 200 µA active current typical
    – 1.0 µA standby current typical (L)
    – 0.1 µA standby current typical (LZ)
■ IIC compatible interface
    – Provides bidirectional data transfer protocol
■ Sixteen byte page Write mode
    – Minimizes total Write time per byte
■ Self timed Write cycle
    - Typical Write cycle time of 6ms
■ Endurance: 1,000,000 data changes
■ Data retention greater than 40 years
■ Packages available: 8-pin TSSOP and 8-pin SO
■ Temperature Ranges: Commercial and Extended

Part Name(s) : AT34C02 AT34C02-10PC AT34C02N-10SC AT34C02-10TC AT34C02-10PI AT34C02N-10SI AT34C02-10TI AT34C02-10PC-2.7 AT34C02N-10SC-2.7 AT34C02-10TC-2.7 Atmel
Atmel Corporation
Description : 2-Wire Serial EEPROM with Permanent Software Write Protect View

Description
The AT34C02 provides 2048 bits of serial electrically erasable and programmable read only memory (EEPROM) organized as 256 words of 8 bits each. The first-half of the device incorporates a Software Write Protection feature while hardware Write Protection for the entire array is available via an external pin as well. Once the Software Write Protection is enabled, by sending a special command to the device, it cannot be reversed. The hardware Write Protection is controlled with the WP pin and can be used to Protect the entire array, whether or not the Software Write Protection has been enabled. This allows the user to Protect none, first-half, or all of the array depending on the application. The device is optimized for use in many industrial and commercial applications where low power and low voltage operations are essential. The AT34C02 is available in space saving 8-pin PDIP, 8-pin JEDEC SOIC, and 8-pin TSSOP packages and is accessed via a 2-wire serial interface. In addition, it is available in 5.0V (4.5V to 5.5V), 2.7V (2.7V to 5.5V), and 1.8V (1.8V to 5.5V) versions.

Features
• Permanent Software Write Protection for the First-Half of the Array
   – Software Procedure to Verify Write Protect Status
• Hardware Write Protection for the Entire Array
• Low Voltage and Standard Voltage Operation
   – 5.0 (VCC = 4.5V to 5.5V)
   – 2.7 (VCC = 2.7V to 5.5V)
   – 1.8 (VCC = 1.8V to 5.5V)
• Internally Organized 256 x 8
• 2-Wire Serial Interface
• Schmitt Trigger, Filtered Inputs for Noise Suppression
• Bidirectional Data Transfer Protocol
• 100 KHz (1.8V and 2.7V) and 400 KHz (5.0V) Compatibility
• 16-Byte Page Write Modes
• Partial Page Writes Are Allowed
• Self-Timed Write Cycle (10 ms max)
• High Reliability
   – Endurance: 1 Million Write Cycles
   – Data Retention: 100 Years
   – ESD Protection: >3,000V
• Automotive Grade and Extended Temperature Devices Available
• 8-Pin PDIP, 8-Pin JEDEC SOIC and 8-Pin TSSOP Packages

Part Name(s) : 24AA52 24AA52-/MC 24AA52-/MNY 24AA52-/MS 24AA52-/P 24AA52-/SN 24AA52-/ST 24AA52-I/MC 24AA52-I/MNY 24AA52-I/MS Microchip
Microchip Technology
Description : 2K 2.2V I2C™ Serial EEPROM with Software Write-Protect View

Description:

The Microchip Technology Inc. 24AA52/24LCS52 (24XXX52*) is a 2 Kbit Electrically Erasable PROM capable of operation across a broad voltage range (1.8V to 5.5V). This device has a Software Write-Protect feature for the lower half of the array, as well as an external pin that can be used to Write-Protect the entire array. The Software Write-Protect feature is enabled by sending the device a special command. Once this feature has been enabled, it cannot be reversed. In addition to the Software Protect feature, there is a WP pin that can be used to Write-Protect the entire array, regardless of whether the Software Write-Protect register has been written or not. This allows the system designer to Protect none, half, or all of the array, depending on the application.



Features:

• Single Supply with Operation Down to 1.8V

• Low-Power CMOS Technology:

   - 1 mA active current, typical

   - 1 μA standby current, typical (I-temp)

• Organized as 1 Block of 256 Bytes (256 x 8)

Software Write Protection for Lower 128 Bytes

• Hardware Write Protection for Entire Array

• 2-Wire Serial Interface bus, I2C™ Compatible

• Schmitt Trigger Inputs for Noise Suppression

• Output Slope Control to Eliminate Ground Bounce

• 100 kHz (24AA52) and 400 kHz (24LCS52) Compatibility

• Self-Timed Write Cycle (including auto-erase)

• Page Write Buffer for up to 16 Bytes

• ESD Protection > 4,000V

• 1,000,000 Erase/Write Cycles

• Data Retention > 200 Years

• 8-Lead PDIP, SOIC, TSSOP, MSOP, DFN and TDFN Packages

• Pb-Free Finishes Available

• Available for Extended Temperature Ranges:

   - Industrial (I): -40°C to +85°C



 


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