N25Q128 Numonyx, N25Q128 Datasheet - Page 20

• Manufacturer Part Number: N25Q128
• Description: 128-mbit 3 V, Multiple I/o, 4-kbyte Subsector Erase On Boot Sectors, Xip Enabled, Serial Flash Memory With 108 Mhz Spi Bus Interface
• Manufacturer: Numonyx

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(C
master leaves the SPI bus in high impedance.
Example: C
master never leaves the SPI bus in the high impedance state for a time period shorter than
5 µs. The Write Protect (W) and Hold (HOLD) signals should be driven, High or Low as
appropriate.
Figure 6.
p
CPOL
0
1
= parasitic capacitance of the bus line) is shorter than the time during which the bus
CPHA
0
1
p
Extended SPI protocol example
DQ0
DQ1
= 50 pF, that is R*C
C
C
MSB
p
= 5 µs <=> the application must ensure that the bus
MSB
AI13730