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M95M04-DR Datasheet(PDF) 6 Page - STMicroelectronics |
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M95M04-DR Datasheet(HTML) 6 Page - STMicroelectronics |
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6 / 46 page  Description M95M04-DR 6/46 DS12179 Rev 1 1 Description The M95M04 devices are electrically erasable programmable memories (EEPROMs) organized as 524288 x 8 bits, accessed through the SPI bus. The M95M04 can operate with a supply range from 1.8 to 5.5 V, and is guaranteed over the -40 °C/+85 °C temperature range. The M95M04 offer an additional page, named the Identification page (512 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 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 S Chip select Input W Write protect Input HOLD Hold Input VCC Supply voltage - VSS Ground - |
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