M95128-DF datasheet(2/48 Pages) STMICROELECTRONICS

tên linh kiện	M95128-DF

Giải thích chi tiết về linh kiện	128-Kbit serial SPI bus EEPROM with high-speed clock

PDF	48 Pages

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nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

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Description

The M95128 devices are electrically erasable programmable memories (EEPROMs) organized as 16384 x 8 bits,

accessed through the SPI bus.

The M95128-W can operate with a supply voltage from 2.5 V to 5.5 V, the M95128-R can operate with a supply

voltage from 1.8 V to 5.5 V and the M95128-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.

The M95128-DF offers an additional page, named the Identification page (64 bytes). The Identification page can

be used to store sensitive application parameters that can be (later) permanently locked in read-only mode.

Figure 1. Logic diagram

VCC

HOLD

M95xxx

VSS

The SPI bus signals are C, D and Q, as shown in Figure 1. Logic diagram and Table 1. Signal names. 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

M95128-W M95128-R M95128-DF

Description

DS1356 - Rev 20

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