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M25PE40 Datasheet(PDF) 7 Page - STMicroelectronics |
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M25PE40 Datasheet(HTML) 7 Page - STMicroelectronics |
7 / 60 page M25PE40 Description 7/60 Figure 3. VFQFPN and SO connections 1. There is an exposed central pad on the underside of the VFQFPN package. This is pulled, internally, to VSS, and must not be allowed to be connected to any other voltage or signal line on the PCB. 2. See Section 12: Package mechanical for package dimensions, and how to identify pin-1. Figure 1. Logic diagram - previous T7X process Figure 2. Logic diagram - new T9HX process 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 TSL or W(1) 1. In the previous T7X process the pin is a Top Sector Lock input whereas in the new T9HX process, the pin is a Write Protect input (see Figure 1 and Figure 2). Top Sector Lock or Write Protect Input Reset Reset Input VCC Supply Voltage VSS Ground Reset AI09704C S VCC M25PE40 VSS TSL Q C D Reset AI13781 S VCC M25PE40 VSS W Q C D 1 AI09703d 2 3 4 8 7 6 5 D VSS C Reset Q SVCC TSL or W M25PE40 |
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