SST25VF020B-80-4C-SA View Datasheet(PDF) - Microchip Technology
Part Name
Description
Manufacturer
SST25VF020B-80-4C-SA Datasheet PDF : 35 Pages
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A Microchip Technology Company
Pin Description
2 Mbit SPI Serial Flash
SST25VF020B
Data Sheet
CE#
SO
WP#
VSS
1
8
2
7
Top View
3
6
4
5
VDD
HOLD#
SCK
SI
CE# 1
SO 2
WP# 3
VSS 4
Top View
8 VDD
7 HOLD#
6 SCK
5 SI
8-Lead SOIC
1417 08-soic S2A P1.0
Figure 2: Pin Assignments
8-Contact WSON
1417 08-wson QA P2.0
Table 1: Pin Description
Symbol
SCK
SI
SO
CE#
WP#
HOLD#
VDD
VSS
Pin Name
Functions
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.
Serial Data Input To transfer commands, addresses, or data serially into the device.
Inputs are latched on the rising edge of the serial clock.
Serial Data Output To transfer data serially out of the device.
Data is shifted out on the falling edge of the serial clock.
Outputs Flash busy status during AAI Programming when reconfigured as RY/
BY# pin. See “Hardware End-of-Write Detection” on page 14 for details.
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.
Write Protect
The Write Protect (WP#) pin is used to enable/disable BPL bit in the status reg-
ister.
Hold
To temporarily stop serial communication with SPI flash memory without reset-
ting the device.
Power Supply
To provide power supply voltage: 2.7-3.6V for SST25VF020B
Ground
T1.0 1417
©2011 Silicon Storage Technology, Inc.
4
S71417-03-000
02/11
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