©2011 Silicon Storage Technology, Inc. DS25078A 11/11
22
2 Mbit SPI Serial Flash
SST25VF020
Not Recommended for New Designs
A
Microchip Technology Company
Figure 18:Hold Timing Diagram
Figure 19:Power-up Timing Diagram
T
HZ
T
LZ
T
HHH
T
HLS
T
HLH
T
HHS
1231 F17.0
HOLD#
CE#
SCK
SO
SI
Time
V
DD
Min
V
DD
Max
V
DD
Device fully accessible
T
PU-READ
T
PU-WRITE
Chip selection is not allowed.
All commands are rejected by the device.
1231 F18.0
©2011 Silicon Storage Technology, Inc. DS25078A 11/11
23
2 Mbit SPI Serial Flash
SST25VF020
Not Recommended for New Designs
A
Microchip Technology Company
Figure 20:AC Input/Output Reference Waveforms
Figure 21:A Test Load Example
1231 F19.1
REFERENCE POINTS OUTPUTINPUT
V
HT
V
LT
V
HT
V
LT
V
IHT
V
ILT
AC test inputs are driven at V
IHT
(0.9V
DD
) for a logic “1” and V
ILT
(0.1V
DD
) for a logic “0”. Measure-
ment reference points for inputs and outputs are V
HT
(0.7V
DD
) and V
LT
(0.3V
DD
). Input rise and fall
times (10% 90%) are <5 ns.
Note: V
HT
-V
HIGH
Test
V
LT
-V
LOW
Test
V
IHT
-V
INPUT
HIGH Test
V
ILT
-V
INPUT
LOW Test
1231 F20.0
TO TESTER
TO DUT
C
L
©2011 Silicon Storage Technology, Inc. DS25078A 11/11
24
2 Mbit SPI Serial Flash
SST25VF020
Not Recommended for New Designs
A
Microchip Technology Company
Product Ordering Information
Valid combinations for SST25VF020
SST25VF020-20-4C-SAE SST25VF020-20-4C-QAE
SST25VF020-20-4I-SAE SST25VF020-20-4I-QAE
SST25VF020-20-4E-SAE SST25VF020-20-4E-QAE
Note:Valid combinations are those products in mass production or will be in mass production. Consult your SST
sales representative to confirm availability of valid combinations and to determine availability of new combi-
nations.
SST 25 VF 020 - 20 - 4I - QAE
XX XX XXX - XX - XX
-
XXX
Environmental Attribute
E
1
= non-Pb
Package Modifier
A = 8 leads or contacts
Package Type
S = SOIC 150 mil body width
Q = WSON
Temperature Range
C = Commercial = 0°C to +70°C
I = Industrial = -40°C to +85°C
E = Extended = -20°C to +85°C
Minimum Endurance
4 = 10,000 cycles
Operating Frequency
20 = 20 MHz
Device Density
020 = 2 Mbit
Voltage
V = 2.7-3.6V
Product Series
25 = Serial Peripheral Interface
flash memory
1. Environmental suffix “E” denotes non-Pb sol-
der. SST non-Pb solder devices are “RoHS
Compliant”.

SST25VF020-20-4C-SAE-T

Mfr. #:
Manufacturer:
Microchip Technology
Description:
NOR Flash 2M (256Kx8) 20MHz 2.7-3.6V Commercial
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union