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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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M95512-DF датащи(PDF) 6 Page - STMicroelectronics |
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M95512-DF датащи(HTML) 6 Page - STMicroelectronics |
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6 / 50 page  Description M95512-W M95512-R M95512-DR M95512-DF 6/50 DocID11124 Rev 21 1 Description The M95512 devices are Electrically Erasable PROgrammable Memories (EEPROMs) organized as 65536 x 8 bits, accessed through the SPI bus. The M95512-W can operate with a supply voltage from 2.5 V to 5.5 V, the M95512-R and M95512-DR can operate with a supply voltage from 1.8 V to 5.5 V, and the M95512-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 M95512-D offers an additional page, named the Identification Page (128 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 S Chip Select Input W Write Protect Input HOLD Hold Input VCC Supply voltage - VSS Ground - AI01789C S VCC M95xxx HOLD VSS W Q C D |
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