Product Overview
STMicroelectronics ST24C16 I2C Serial EEPROM - DIP-8 Package, 16 Kbit Non-Volatile Memory for Embedded, Automotive, and Industrial Systems
Condition
Unused NOS sourced from an electronics distributor consolidating inventory. DIP-8 body is clean with straight leads, no bends or oxidation observed. Markings visible on the package: 24C16, CHN, K, 6, K0Z009. No function testing performed - part is unused and shows no physical defects.
Ships same business day from Idaho. Packed carefully.
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Product Overview
STMicroelectronics ST24C16 is a 16 Kbit (2 Kbyte) Serial I2C Bus EEPROM in a DIP-8 package. It stores data without power and supports repeated erase and rewrite cycles. Communication is over the two-wire I2C bus - it requires an I2C-compatible bus master and pull-up resistors on the SCL and SDA lines.
Key Features
- Memory: 16 Kbit (2 Kbyte)
- Interface: I2C serial bus (two-wire)
- Package: DIP-8 (confirmed by photo)
- Supply voltage: 4.5V to 5.5V - not confirmed, verify against datasheet before use
- Write endurance: 1 million erase/write cycles (not confirmed - verify against datasheet before use)
- Data retention: 40 years (not confirmed - verify against datasheet before use)
- Non-volatile: retains data without power
Applications
- Automotive ECUs and modules: storing engine management settings, fault logs, calibration data
- Microcontroller-based embedded systems: configuration storage and data logging
- Industrial control systems: PLC parameter storage, machine configurations
- Consumer electronics repair: TVs, audio equipment, set-top boxes
- Arduino and Raspberry Pi projects: persistent settings and sensor calibration data
- IoT and communication devices: network configuration and device parameters
Frequently Asked Questions
What interface does this chip require?
The ST24C16 uses the I2C (two-wire serial) bus. It requires an I2C-compatible bus master - typically a microcontroller - and pull-up resistors on both the SCL and SDA lines. It is not compatible with SPI or parallel bus systems.
What is the supply voltage for this part?
The ST24C16 typically operates on 4.5V to 5.5V. Not confirmed for this specific unit - verify against the ST24C16 datasheet before use. If your system runs at lower voltages (2.5V or below), review the ST25C16 or M24C16 variants instead.
What package is this and does it match my footprint?
DIP-8, confirmed by photo. If your design requires a surface-mount package (SO-8), this unit will not fit. Verify your PCB footprint before ordering.
Is the data on this chip blank or pre-programmed?
It is unused NOS - the data state is not confirmed. If you are replacing an EEPROM in a system like an automotive ECU, confirm you have a backup of the original data before installing a new chip, as the original programming will not be present.
A blank chip that remembers everything you write to it - that is the quiet promise of an EEPROM. This one has never been used. What it remembers next is up to you.
