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CAT24C02TDI-GT3A

2Kbit I2C EEPROM, 400kHz, TSOT-23-5

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جزء الشركة المصنعة ： جزء الشركة المصنعة

CAT24C02TDI-GT3A

الحزمة ： الحزمة

TSOT-23-5 (2.9 x 1.6 x 0.87 mm, 0.95mm pitch)

الوصف

نظرة عامة على المنتج

The CAT24C02TDI-GT3A from onsemi is a 2Kbit I2C serial EEPROM with 256×8 organization, 400kHz clock, and TSOT-23-5 package.

المواصفات الرئيسية

النوع	2Kbit I2C Serial EEPROM
الكثافة	2 Kbit (256 x 8 bits)
Organization	256 bytes x 8 bits
الواجهة	I2C (Standard 100kHz / Fast 400kHz)
Page Size	16 bytes
جهد الإمداد	1.7V to 5.5V
Write Cycle Time	5 ms (max, page write)
Access Time	900 ns (max)
Endurance	1,000,000 write cycles
الاحتفاظ بالبيانات	100 years
التيار الاحتياطي	3 uA (max)
الحزمة	TSOT-23-5 (2.9 x 1.6 x 0.87 mm)
درجة حرارة التشغيل	-40C to +85C

الميزات

2Kbit (256 bytes) I2C EEPROM
400kHz Fast-mode I2C support
1.7V to 5.5V wide operating voltage
16-byte page write buffer
Hardware write protection (WP pin)
Schmitt triggers and noise suppression on SCL/SDA
Power-on reset (POR) circuit
1M write cycle endurance, 100-year retention

التطبيقات

Configuration storage
Calibration data storage
Sensor offset storage
Small parameter storage

مقدمة المنتج:CAT24C02TDI-GT3A مقدمة المنتج

The CAT24C02TDI-GT3A from onsemi is a 2Kbit (256 bytes) serial I2C EEPROM in an ultra-compact TSOT-23-5 package. The device supports both Standard (100kHz) and Fast (400kHz) I2C modes, providing flexible data rates for various MCU I2C peripherals. The 1.7V to 5.5V supply voltage range allows operation from low-voltage 1.8V MCUs up to 5V systems without level translation. The 16-byte page write buffer allows up to 16 bytes to be written in a single internal write cycle, reducing overall write time for multi-byte data structures. The hardware write protection (WP) pin can prevent inadvertent writes to the entire memory array. Schmitt trigger inputs on SCL and SDA provide improved noise immunity in electrically noisy environments. The internal power-on reset (POR) circuit ensures the EEPROM is in a known state after power-up, preventing data corruption during brown-out conditions. The 1 million write cycle endurance and 100-year data retention provide exceptional reliability for configuration and calibration data storage. The GT3A suffix indicates tape and reel packaging with 3000 units per reel.

مبدأ العمل:CAT24C02TDI-GT3A مبدأ العمل

The CAT24C02TDI-GT3A uses a floating-gate CMOS EEPROM cell array to store data. Each byte consists of 8 floating-gate transistors that can hold charge indefinitely (100-year retention) when no power is applied. Writing data involves tunneling electrons onto the floating gate through Fowler-Nordheim tunneling, which requires approximately 14V generated by an internal charge pump from the 1.7-5.5V supply. The write operation is initiated by sending an I2C START condition, the device address byte (1010A2A1A0R/W#), the word address byte, and up to 16 data bytes, followed by a STOP condition. The internal write cycle takes up to 5ms, during which the device does not acknowledge I2C bus requests (ACK polling can be used to detect completion). Reading data is non-destructive: after sending the device address and word address, the master issues a repeated START with the R/W# bit set to 1, and the EEPROM shifts out data bytes while incrementing the internal address counter. The Schmitt triggers on SCL and SDA inputs convert slowly-rising or noisy signals into clean digital edges, preventing false clock or data detection. The WP pin, when tied HIGH, prevents write operations to the entire memory array while still allowing reads.

وصف الدبوس:CAT24C02TDI-GT3A تعريف الدبوس ووظائفه

دبوس	الاسم	النوع	الوظيفة
1	SCL	المدخلات	I2C serial clock (Schmitt trigger)
2	SDA	الإدخال/الإخراج	I2C serial data (open-drain, Schmitt trigger)
3	A0	المدخلات	Address bit 0 (connect to VCC or GND)
4	VSS	الطاقة	أرضي
5	VCC	الطاقة	Supply voltage (1.7V-5.5V)

Application Scenarios:In which products and applications isCAT24C02TDI-GT3A مستعمل

Sensor calibration offset storage with 2Kbit capacity, 100-year retention, and 1.8V operation from low-power MCU
Device configuration parameter storage with 16-byte page write and WP hardware protection against accidental overwrite
Small form-factor TSOT-23-5 EEPROM for space-constrained IoT node with 400kHz I2C fast-mode readback

Alternative Models:What chips are recommended as replacements for CAT24C02TDI-GT3A

الشركة المصنعة	رقم الجزء	الحزمة	الملاحظات
أونسمي	CAT24C02WI-GT3	SOIC-8	Same function, larger package
الرقاقة الدقيقة	AT24C02DN-SH-B	TSSOP-8	2Kbit, similar spec
ST	M24C02-WMN6TP	SOIC-8	2Kbit, SOIC-8
أونسمي	CAT24C04TDI-GT3A	TSOT-23-5	4Kbit, same package
أونسمي	CAT24C01TDI-GT3A	TSOT-23-5	1Kbit, smaller capacity