SST25WF512-40-5I-SAF datasheet(3/32 Pages) SST

Part #	SST25WF512-40-5I-SAF

Description	512 Kbit / 1 Mbit / 2 Mbit / 4Mbit 1.8V SPI Serial Flash

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Manufacturer	SST [Silicon Storage Technology, Inc]

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3 / 32 page

Data Sheet

512 Kbit / 1 Mbit / 2 Mbit / 4 Mbit 1.8V SPI Serial Flash

SST25WF512 / SST25WF010 / SST25WF020 / SST25WF040

3

S71328-08-000

11/09

PIN DESCRIPTION

FIGURE 2: Pin Assignment for 8-Lead SOIC and 8-Contact WSON

TABLE

1: Pin Description

Symbol

Pin Name

Functions

SCK

Serial Clock

To provide the 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.

SI

Serial Data Input

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

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

SO

Serial Data Output

To transfer data serially out of the device.

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

Flash busy status pin in AAI mode if SO is configured as a hardware RY/BY# pin. See

“End-of-Write Detection” on page 14 for more information.

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.

WP#

Write Protect

The Write Protect (WP#) pin is used to enable/disable BPL bit in the status register.

RST#/HOLD#

Reset

To reset the operation of the device and the internal logic. The device powers on with

RST# pin functionality as default.

Hold

To temporarily stop serial communication with SPI Flash memory while device is

selected. This is selected by an instruction sequence which is detailed in “Reset/Hold

Mode” on page 5.

VDD

Power Supply

To provide power supply voltage: 1.65-1.95V for SST25WF512/010/020/040

VSS

Ground

T1.0 1328

1

2

3

4

8

7

6

5

CE#

SO

WP#

VSS

VDD

RST#/HOLD#

SCK

SI

Top View

1328.25WF 08-soic-P0.0

1

2

3

4

8

7

6

5

CE#

SO

WP#

VSS

Top View

VDD

RST#/HOLD#

SCK

SI

1328 08-wson P2.0

8-Lead SOIC

8-Contact WSON

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