SST25WF080_12 datasheet(26/33 Pages) MICROCHIP

26 / 33 page

DS25024C

10/12

8 Mbit 1.8V SPI Serial Flash

SST25WF080

Not Recommended for New Designs

Power-Up Specifications

All functionalities and DC specifications are specified for a VDD ramp rate of greater than 1V per 100

ms (0V to 1.8V in less than 180 ms). If the VDD ramp rate is slower than 1V/100 ms, a hardware reset

is required. The recommended VDD power-up to RESET# high time should be greater than 100 µs to

ensure a proper reset. See Table 11 and Figures 25 and 26 for more information.

Figure 25:Power-Up Reset Diagram

Figure 26:Power-up Timing Diagram

Table 11: Recommended System Power-up Timings

Symbol

Parameter

Minimum

Units

TPU-READ1

1. This parameter is measured only for initial qualification and after a design or process change that could affect this parameter.

VDD Min to Read Operation

100

µs

TPU-WRITE1

VDD Min to Write Operation

100

µs

T11.0 25024

1203 F37.0

VDD

RESET#

CE#

TPU-READ

VDD min

VIH

TRECR

Note: See Table 2 on page 7 for TRECR parameter.

Time

VDD Min

VDD Max

VDD

Device fully accessible

TPU-READ

TPU-WRITE

Chip selection is not allowed.

Commands may not be accepted or properly

interpreted by the device.

1203 F27.0

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