M24C32-R_12 datasheet(6/40 Pages) STMICROELECTRONICS

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Description

M24C32-W M24C32-R M24C32-F M24C32-X M24C32-DF

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Doc ID 4578 Rev 21

Description

The M24C32 is a 32-Kbit I2C-compatible EEPROM (Electrically Erasable PROgrammable

Memory) organized as 4 K × 8 bits.

The M24C32-W can operate with a supply voltage from 2.5 V to 5.5 V, the M24C32-R can

operate with a supply voltage from 1.8 V to 5.5 V, and the M24C32-F and M24C32-DF can

operate with a supply voltage from 1.7 V to 5.5 V, over an ambient temperature range of

-40 °C / +85 °C; while the M24C32-X can operate with a supply voltage from 1.6 V to 5.5 V

over an ambient temperature range of -20 °C / +85 °C.

The M24C32-D offers an additional page, named the Identification Page (32 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

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

M24C32-R 데이터시트(PDF) 6 Page - STMicroelectronics