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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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IS25LP064A-RFLA1 датащи(PDF) 31 Page - Integrated Silicon Solution, Inc |
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IS25LP064A-RFLA1 датащи(HTML) 31 Page - Integrated Silicon Solution, Inc |
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31 / 99 page  IS25LP064A/032A Integrated Silicon Solution, Inc.- www.issi.com 31 Rev. A 11/06/2015 8.5 FAST READ DUAL OUTPUT OPERATION (FRDO, 3Bh) The FRDO instruction is used to read memory data on two output pins each at up to a 133MHz clock. The FRDO instruction code is followed by three address bytes (A23 – A0) and a dummy byte (8 clocks), transmitted via the IO0 line, with each bit latched-in during the rising edge of SCK. Then the first data byte addressed is shifted out on the IO1 and IO0 lines, with each pair of bits shifted out at a maximum frequency fCT, during the falling edge of SCK. The first bit (MSB) is output on IO1. Simultaneously the second bit is output on IO0. The first byte addressed can be at any memory location. The address is automatically incremented by one after each byte of data is shifted out. W hen the highest address is reached, the address counter will roll over to the 000000h address, allowing the entire memory to be read with a single FRDO instruction. The FRDO instruction is terminated by driving CE# high (VIH). If the FRDO instruction is issued while an Erase, Program or Write cycle is in process (BUSY=1) the instruction is ignored and will not have any effects on the current cycle. Figure 8.6 Fast Read Dual Output Sequence CE # SCK 7 5 Data Out 1 Instruction = 3Bh 23 CE # SCK 3 2 1 0 3-byte Address High Impedance 22 21 ... 0 1 2 3 4 5 6 7 8 9 10 ... 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 Mode 3 Mode 0 ... tV IO0 IO1 6 4 3 1 7 5 2 0 6 4 3 1 ... 2 0 ... Data Out 2 IO0 IO1 8 Dummy Cycles |
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