SST25PF040C datasheet(4/47 Pages) MICROCHIP

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SST25PF040C

DS20005397F-page 4

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2.0

PIN ASSIGNMENTS

FIGURE 2-1:

PIN ASSIGNMENTS

TABLE 2-1:

PIN DESCRIPTION

Symbol

Pin Name

Functions

CE#

Chip Enable

The device is enabled by a high to low transition on CE#. CE# must remain low

for the duration of any command sequence. The device is deselected and

placed in Standby mode when CE# is high.

Serial Data Output

To transfer data serially out of the device.

Data is shifted out on the falling edge of the serial clock.

SIO[0:1]

Serial Data Input/

Output for Dual I/O

Mode

To transfer commands, addresses, or data serially into the device, or data out of

the device. Inputs are latched on the rising edge of the serial clock. Data is

shifted out on the falling edge of the serial clock. These pins are used in Dual

I/O mode

WP#

Write-Protect

The Write-Protect (WP#) pin is used to enable/disable BPL bit in the STATUS

VSS

Ground

VDD

Power Supply

To provide power supply voltage: 2.3V-3.6V

HOLD#

Hold

To temporarily stop serial communication with SPI Flash memory while device

is selected.

SCK

Serial Clock

To provide the input/output timing of the serial interface.

Commands, addresses, or input data are latched on the rising edge of the clock

input, while output data is shifted out on the falling edge of the clock input.

Serial Data Input

To transfer commands, addresses, or data serially into the device.

Inputs are latched on the rising edge of the serial clock.

8-Lead SOIC

8-Contact WDFN 5x6 mm

8-Contact USON 2x3 mm

CE#

SO/SIO1

WP#

VSS

VDD

HOLD#

SCK

SI/SIO0

CE#

SO/SIO1

WP#

VSS

VDD

HOLD#

SCK

SI/SIO0

Top View

CE#

SO/SIO1

WP#

VSS

Top View

VDD

HOLD#

SCK

SI/SIO0

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