M95M01-DF datasheet(6/51 Pages) STMICROELECTRONICS

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Description

M95M01-DF M95M01-R

6/51

DocID13264 Rev 14

Description

The M95M01 devices are Electrically Erasable PROgrammable Memories (EEPROMs)

organized as 131072 x 8 bits, accessed through the SPI bus.

The M95M01-R can operate with a supply range from 1.8 V to 5.5 V, the M95M01-DF can

operate with a supply range from 1.7 V up to 5.5 V. These devices are guaranteed over the

-40 °C/+85 °C temperature range.

The M95M01-DF offers an additional page, named the Identification Page (256 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

The SPI bus signals are C, D and Q, as shown in Figure 1 and Table 1. The device is

selected when Chip Select (S) is driven low. Communications with the device can be

interrupted when the HOLD is driven low.

Table 1. Signal names

Signal name

Function

Direction

Serial Clock

Input

Serial Data Input

Input

Serial Data Output

Output

Chip Select

Input

Write Protect

Input

HOLD

Hold

Input

VCC

Supply voltage

VSS

Ground

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