Part: CAT24C02, CAT24C04, CAT24C08, CAT24C16 — onsemi

Type: I2C Serial EEPROM

Description: 2-Kb, 4-Kb, 8-Kb, and 16-Kb I2C Serial EEPROM devices with a 1.7 V to 5.5 V supply voltage range, supporting Standard (100 kHz) and Fast (400 kHz) I2C protocols, and featuring a 16-byte page write buffer.

Operating Conditions:

• Supply voltage: 1.7 V to 5.5 V
• Operating temperature: -40 °C to +125 °C (for VCC = 1.8 V to 5.5 V)
• Operating temperature: -40 °C to +85 °C (for VCC = 1.7 V to 5.5 V)

Absolute Maximum Ratings:

• Max supply voltage: +6.5 V (on any pin with respect to Ground)
• Max storage temperature: +150 °C

Key Specs:

• Read Current (ICCR): 1 mA max (fSCL = 400 kHz)
• Write Current (ICCW): 2 mA max (fSCL = 400 kHz)
• Standby Current (ISB): 1 mA max (TA = -40 °C to +85 °C, VCC ≤ 3.3 V)
• Endurance: 1,000,000 Program/Erase Cycles min
• Data Retention: 100 Years min
• Clock Frequency (FSCL): 400 kHz max (Fast mode)
• Write Cycle Time (tWR): 5 ms max

Features:

• 16-Byte Page Write Buffer
• Schmitt Triggers and Noise Suppression Filters on I2C Bus Inputs (SCL and SDA)
• Hardware Write Protection for Entire Memory
• Low power CMOS Technology
• Power-On Reset (POR) circuitry
• Pb-Free, Halogen Free/BFR Free and RoHS Compliant

Applications:

Package:

• TSSOP-8 (Y SUFFIX CASE 948AL)
• SOIC-8 (W SUFFIX CASE 751BD)
• WLCSP-5 (C5A SUFFIX CASE 567DD)
• WLCSP-4 (C4A SUFFIX CASE 567DC)
• WLCSP-4 (C4U SUFFIX CASE 567NX)

• 1.7 V to 5.5 V Supply Voltage Range
• Supports Standard and Fast I 2 C Protocol
• 16 -Byte Page Write Buffer
• Schmitt Triggers and Noise Suppression Filters on I 2 C Bus Inputs (SCL and SDA)
• Hardware Write Protection for Entire Memory
• Low power CMOS Technology
• 100 Year Data Retention
• More than 1,000,000 Program/Erase Cycles
• Industrial and Extended Temperature Range
• These Devices are Pb -Free, Halogen Free/BFR Free and are RoHS Compliant

This document contains information on some products that are still under development. onsemi reserves the right to change or discontinue these products without notice.

TSSOP -8 Y SUFFIX CASE 948AL

SOIC -8 W SUFFIX CASE 751BD

WLCSP -5** C5A SUFFIX CASE 567DD

WLCSP -4** C4A SUFFIX CASE 567DC

WLCSP -4** C4U SUFFIX CASE 567NX

** WLCSP are available for the CAT24C04, CAT24C08 and CAT24C16 only.

For serial EEPROM in the US8 package, please consult the N24C02 datasheet

CAT24Cxx TSOT-23-5 Pinout

Notes

• Part Number C242136: This pinout applies to the CAT24Cxx family in TSOT-23-5 package. The specific variant (CAT24C02/C04/C08/C16) shares the same 5-pin configuration; capacity differences are internal only.
• A2 pin: The functional symbol shows A2, A1, A0 as address inputs, but the TSOT-23-5 package has only 5 pins total. Pin 1 is A0; Pin 2 is A1. A2 is not present in this package variant (it is available in larger packages like DIP-8 or SOIC-8).
• VCC: Not explicitly numbered in the diagram but is shown as a supply input; it connects to the top of the functional block. In TSOT-23-5, VCC is typically on Pin 5 or integrated into the package design—verify against the actual pinout diagram if a separate VCC pin is required.
• WP (Write Protect): Shown in the functional symbol but not present in the TSOT-23-5 package (available in larger variants).

No ordering information found in the provided text. Please refer to page 10 of the datasheet as indicated.