2 Mbit SPI Serial Flash
SST25VF020
SST25VF020 / 0402Mb / 4Mb Serial Peripheral Interface (SPI) flash memory
Data Sheet
FEATURES:
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Single 2.7-3.6V Read and Write Operations
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End-of-Write Detection
– Software Status
Hold Pin (HOLD#)
– Suspends a serial sequence to the memory
without deselecting the device
Write Protection (WP#)
– Enables/Disables the Lock-Down function of the
status register
Software Write Protection
– Write protection through Block-Protection bits in
status register
Serial Interface Architecture
– SPI Compatible: Mode 0 and Mode 3
20 MHz Max Clock Frequency
Superior Reliability
– Endurance: 100,000 Cycles (typical)
– Greater than 100 years Data Retention
Low Power Consumption:
– Active Read Current: 7 mA (typical)
– Standby Current: 8 µA (typical)
Flexible Erase Capability
– Uniform 4 KByte sectors
– Uniform 32 KByte overlay blocks
Fast Erase and Byte-Program:
– Chip-Erase Time: 70 ms (typical)
– Sector- or Block-Erase Time: 18 ms (typical)
– Byte-Program Time: 14 µs (typical)
Auto Address Increment (AAI) Programming
– Decrease total chip programming time over
Byte-Program operations
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Temperature Range
– Commercial: 0°C to +70°C
– Industrial: -40°C to +85°C
– Extended: -20°C to +85°C
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Packages Available
– 8-lead SOIC 150 mil body width
– 8-contact WSON (5mm x 6mm)
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All non-Pb (lead-free) devices are RoHS compliant
PRODUCT DESCRIPTION
The SST serial flash family features a four-wire, SPI-
compatible interface that allows for a low pin-count pack-
age occupying less board space and ultimately lowering
total system costs. SST25VF020 SPI serial flash memo-
ries are manufactured with SST’s proprietary, high perfor-
mance CMOS SuperFlash Technology. The split-gate
cell design and thick-oxide tunneling injector attain better
reliability and manufacturability compared with alternate
approaches.
rent, and time of application. Since for any given voltage
range, the SuperFlash technology uses less current to
program and has a shorter erase time, the total energy
consumed during any Erase or Program operation is less
than alternative flash memory technologies. The
SST25VF020 device operates with a single 2.7-3.6V
power supply.
The SST25VF020 device is offered in an 8-lead SOIC 150
mil body width (SA) package, and in an 8-contact WSON
package. See Figure 2 for the pin assignments.
The SST25VF020 device significantly improves perfor-
mance, while lowering power consumption. The total
energy consumed is a function of the applied voltage, cur-
©2006 Silicon Storage Technology, Inc.
The SST logo and SuperFlash are registered Trademarks of Silicon Storage Technology, Inc.
These specifications are subject to change without notice.
S71231-07-000
1
10/06