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STMicroelectronics M24C01-WBN6 — Memory (DRAM / SRAM / Flash / EEPROM)

STMicroelectronics M24C01-WBN6 EEPROM, 1Kbit I²C 400kHz

MPNM24C01-WBN6
Obsolete

STMicroelectronics M24C01-WBN6 serial EEPROM, 1Kbit (128 x 8), I²C interface, 400 kHz clock, 900 ns access time, 2.5V to 5.5V supply, -40°C to 85°C, 8-DIP through-hole package, Bulk.

STMicroelectronics M24C01-WBN6 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

M24C01-WBN6 specifications
ParameterValue
Memory typeNon-Volatile
MountingThrough Hole
Supply voltage2.5V ~ 5.5V
Clock frequency400 kHz
Memory interfaceI²C
Operating temperature-40°C ~ 85°C (TA)
PackageBulk
TechnologyEEPROM
Access time900 ns
Memory size1Kbit
Memory formatEEPROM
Case8-DIP (0.300\", 7.62mm)
Memory organization128 x 8
Write cycle time - word, page5ms

Product details

The STMicroelectronics M24C01-WBN6 is a 1Kbit serial EEPROM organized as 128 x 8 bits, communicating over an I²C bus at up to 400 kHz.

900 ns access time — timing margin for the I²C bus

The 900 ns access time is the window from a valid address match to data appearing on the bus. At 400 kHz I²C, that 900 ns leaves margin for the rest of the bus transaction.

Pin-compatible replacement planning

The M24C01 family shares the same I²C interface, 1Kbit density, and 8-pin DIP footprint across density variants. For a new design or a BOM refresh, a current-production I²C EEPROM in the same 8-DIP package from ST or a second-source vendor would be the natural cross-shop — same pinout, same supply range, same bus speed.

Frequently asked questions

What is the replacement for the M24C01-WBN6?

No official replacement order code is published by STMicroelectronics. Verify write cycle time and page size against your firmware.

Is the M24C01-WBN6 compatible with 5V?

Yes, the M24C01-WBN6 operates from 2.5V to 5.5V, so it works directly on both 3.3V and 5V buses without a level shifter.