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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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M25PE20 Arkusz danych(PDF) 23 Page - STMicroelectronics |
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M25PE20 Arkusz danych(HTML) 23 Page - STMicroelectronics |
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23 / 37 page  23/37 M25PE10, M25PE20 Release from Deep Power-down (RDP) Once the device has entered the Deep Power- down mode, all instructions are ignored except the Release from Deep Power-down (RDP) instruc- tion. Executing this instruction takes the device out of the Deep Power-down mode. The Release from Deep Power-down (RDP) in- struction is entered by driving Chip Select (S) Low, followed by the instruction code on Serial Data In- put (D). Chip Select (S) must be driven Low for the entire duration of the sequence. The instruction sequence is shown in Figure 19. The Release from Deep Power-down (RDP) in- struction is terminated by driving Chip Select (S) High. Sending additional clock cycles on Serial Clock (C), while Chip Select (S) is driven Low, cause the instruction to be rejected, and not exe- cuted. After Chip Select (S) has been driven High, followed by a delay, tRDP, the device is put in Standby Power mode. Chip Select (S) must remain High at least until this period is over. The device waits to be selected, so that it can receive, decode and execute instructions. Any Release from Deep Power-down (RDP) in- struction, while an Erase, Program or Write cycle is in progress, is rejected without having any ef- fects on the cycle that is in progress. Figure 19. Release from Deep Power-down (RDP) Instruction Sequence C D AI06807 S 2 1 34567 0 tRDP Standby Power Mode Deep Power-down Mode Q High Impedance Instruction |
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