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W25Q16JVSSIQ Datasheet(PDF) 45 Page - Winbond |
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W25Q16JVSSIQ Datasheet(HTML) 45 Page - Winbond |
45 / 75 page W25Q16JV Publication Release Date: March 22, 2018, 2018 - 44 - Revision G Read Manufacturer / Device ID Dual I/O (92h) The Read Manufacturer / Device ID Dual I/O instruction is an alternative to the Read Manufacturer / Device ID instruction that provides both the JEDEC assigned manufacturer ID and the specific device ID at 2x speed. The Read Manufacturer / Device ID Dual I/O instruction is similar to the Fast Read Dual I/O instruction. The instruction is initiated by driving the /CS pin low and shifting t he instruction code “92h” followed by a 24-bit address (A23-A0) of 000000h, but with the capability to input the Address bits two bits per clock. After which, the Manufacturer ID for Winbond (EFh) and the Device ID are shifted out 2 bits per clock on the falling edge of CLK with most significant bits (MSB) first as shown in Figure 40. The Device ID values for the W25Q16JV are listed in Manufacturer and Device Identification table. The Manufacturer and Device IDs can be read continuously, alternating from one to the other. The instruction is completed by driving /CS high. Figure 40. Read Manufacturer / Device ID Dual I/O Instruction Note: The “Continuous Read Mode” bits M(7-0) must be set to Fxh to be compatible with Fast Read Dual I/O instruction. /CS CLK DI (IO 0) DO (IO 1) Mode 0 Mode 3 0 1 2 3 4 5 6 7 Instruction (92h) High Impedance 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 7 5 3 1 * * 6 4 2 0 7 5 3 1 6 4 2 0 7 5 3 1 6 4 2 0 7 5 3 1 6 4 2 0 23 * * A23-16 A15-8 A7-0 (00h) M7-0 /CS CLK DI (IO 0) DO (IO 1) 24 25 26 27 28 29 30 31 32 33 34 36 37 38 35 23 0 Mode 0 Mode 3 7 5 3 1 6 4 2 0 7 5 3 1 6 4 2 0 7 5 3 1 6 4 2 0 7 5 3 6 4 2 1 0 1 MFR ID Device ID MFR ID (repeat) Device ID (repeat) IOs switch from Input to Output * * * * = MSB * |
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