Model No: CAT24C16WI-GT3

onsemi CAT24C16WI-GT3

Manufacturer: onsemi
SEMICON NO.: CAT24C16WI-GT3
Package: SOIC-8
Stock: In stock
Description: EEPROM Memory IC 16Kbit I2C 400kHz 900ns
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 Mfr       onsemi 
 Device Type    16-Kb I²C CMOS Serial EEPROM
 Memory Density   16 Kb (2,048 × 8)
 Organization     2K × 8
 Interface  I²C(2-Wire)
 Page Write Buffer   16 Bit
 Max Clock Frequency     400 kHz
 Supply Voltage   1.7 V to 5.5 V
 Nominal Supply     3.3 V
 Standby Current     1 µA / 5 µA
 Operating Temperature    –40°C to 85°C
 Package SOIC-8
 Mounting Type
 Surface Mount
 Compliance    
 RoHS Compliant
 
CAT24C16WI-GT3 | onsemi EEPROM | 16Kb I2C memory | SOIC-8 EEPROM chip
The CAT24C16WI-GT3 is a 16-Kbit I2C serial EEPROM from onsemi, organized internally as 2K x 8 bits across 128 pages of 16 bytes each, supporting both Standard (100kHz) and Fast (400kHz) I2C protocol modes. This CMOS non-volatile memory operates from a wide 1.7V to 5.5V supply range with a 16-byte page write buffer and 5ms write cycle time, achieving more than 1,000,000 program/erase cycles endurance with 100-year data retention. The device features hardware write protection for the entire memory via the WP pin, Schmitt triggers and noise suppression filters on the SCL and SDA bus inputs, and 900ns maximum access time.
Applications
● Consumer electronics storing user preferences, channel settings, and device configuration data across TVs, appliances, and audio equipment.
● Industrial controllers retaining calibration constants, PID parameters, and setpoint values through power cycles.
● Networking equipment including routers and modems storing MAC addresses, configuration registers, and boot parameters.
● Automotive systems (non-Q100 variants) preserving trip meters, seat/mirror positions, and radio presets in body electronics.
● Medical devices and instrumentation holding serial numbers, usage counters, and calibration tables requiring long-term non-volatile retention.
● Telecommunication terminals and smart meters logging operational data and event histories in remote monitoring nodes.
FAQs
Q: How is the CAT24C16 addressed on the I2C bus? A: The CAT24C16 uses all three address pins (A0, A1, A2) as memory address bits since 16Kb requires an 11-bit word address, allowing only one CAT24C16 device per I2C bus. 
Q: What is the write cycle time? A: 5ms maximum for both word and page write operations, with the page buffer accepting 1 to 16 contiguous bytes per cycle. 
Q: What is the endurance rating? A: More than 1,000,000 program/erase cycles in page mode at VCC = 5V and 25°C, with 100-year data retention guaranteed.
Alternative Models
1. CAT24C16YI-GT3: The TSSOP-8 packaged sibling with identical 16Kb density in a thinner 4.40mm-wide body for height-constrained assemblies.
2. CAT24C16TDI-GT3: The ultra-compact TSOT-23-5 variant offering the same 16Kb memory in a 5-pin small-outline transistor footprint.
3. CAT24C08WI-GT3: The 8Kb half-density alternative sharing identical timing and protocol specifications for smaller storage needs.
4. CAT24C32WI-GT3: The 32Kb density upgrade doubling capacity while maintaining the same SOIC-8 footprint and I2C command set.