M24128-DF datasheet(6/40 Pages) STMICROELECTRONICS

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Description

M24128-BW M24128-BR M24128-BF M24128-DF

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DocID16892 Rev 23

Description

The M24128 is a 128-Kbit I2C-compatible EEPROM (Electrically Erasable PROgrammable

Memory) organized as 16 K × 8 bits.

The M24128-BW can operate with a supply voltage from 2.5 V to 5.5 V, the M24128-BR can

operate with a supply voltage from 1.8 V to 5.5 V, and the M24128-BF and M24128-DF can

operate with a supply voltage from 1.7 V to 5.5 V. All these devices operate with a clock

frequency of 1 MHz (or less), over an ambient temperature range of –40 °C / +85 °C. The

M24128-Dx offers an additional page, named the Identification Page (64 bytes). The

Identification Page can be used to store sensitive application parameters which can be

(later) permanently locked in Read-only mode.

Figure 1. Logic diagram

Figure 2. 8-pin package connections, top view

1. See Section 9: Package mechanical data for package dimensions, and how to identify pin 1.

Table 1. Signal names

Signal name

Function

Direction

E2, E1, E0

Chip Enable

Input

SDA

Serial Data

I/O

SCL

Serial Clock

Input

Write Control

Input

VCC

Supply voltage

VSS

Ground

AI01844f

E0-E2

SDA

VCC

M24xxx

SCL

VSS

SDA

VSS

SCL

VCC

AI01845f

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