Datasheet

Description M95080-W M95080-R M95080-DF

6/44 DocID022540 Rev 2

1 Description

The M95080 devices are Electrically Erasable PROgrammable Memories (EEPROMs)

organized as 1024 x 8 bits, accessed through the SPI bus.

The M95080-W can operate with a supply voltage from 2.5 V to 5.5 V, the M95080-R can

operate with a supply voltage from 1.8 V to 5.5 V, and the M95080-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 M95080-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

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

C Serial Clock Input

D Serial Data Input Input

Q Serial Data Output Output

Chip Select Input

W Write Protect Input

HOLD Hold Input

Supply voltage -

Ground -

AI01789C

M95xxx

HOLD