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W25Q16JVSSIQ Datasheet(PDF) 35 Page - Winbond |
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W25Q16JVSSIQ Datasheet(HTML) 35 Page - Winbond |
35 / 75 page W25Q16JV Publication Release Date: March 22, 2018, 2018 - 34 - Revision G Quad Input Page Program (32h) The Quad Page Program instruction allows up to 256 bytes of data to be programmed at previously erased (FFh) memory locations using four pins: IO0, IO1, IO2, and IO3. The Quad Page Program can improve performance for PROM Programmer and applications that have slow clock speeds <5MHz. Systems with faster clock speed will not realize much benefit for the Quad Page Program instruction since the inherent page program time is much greater than the time it take to clock-in the data. To use Quad Page Program the Quad Enable (QE) bit in Status Register-2 must be set to 1. A Write Enable instruction must be executed before the device will accept the Quad Page Program instruction (Status Register-1, WEL=1). The instruction is initiated by driving the /CS pin low then shifting the instruction code “32h” followed by a 24-bit address (A23-A0) and at least one data byte, into the IO pins. The /CS pin must be held low for the entire length of the instruction while data is being sent to the device. All other functions of Quad Page Program are identical to standard Page Program. The Quad Page Program instruction sequence is shown in Figure 30. Figure 30. Quad Input Page Program Instruction /CS CLK Mode 0 Mode 3 0 1 2 3 4 5 6 7 Instruction (32h) 8 9 10 28 29 30 32 33 34 35 36 37 4 0 24-Bit Address 23 22 21 3 2 1 0 * 31 31 /CS CLK 5 1 Byte 1 6 2 7 3 4 0 5 1 6 2 7 3 4 0 5 1 6 2 7 3 4 0 5 1 6 2 7 3 Byte 2 Byte 3 Byte 256 0 4 0 5 1 6 2 7 3 4 0 5 1 6 2 7 3 4 0 5 1 6 2 7 3 Mode 0 Mode 3 Byte 253 Byte 254 Byte 255 IO 0 IO 1 IO 2 IO 3 IO 0 IO 1 IO 2 IO 3 * * * * * * * = MSB * |
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