SST25VF020B-80-4C-SAE-T Microchip Technology, SST25VF020B-80-4C-SAE-T Datasheet - Page 24

• Manufacturer Part Number: SST25VF020B-80-4C-SAE-T
• Description: 2.7V To 3.6V 2Mbit SPI Serial Flash 8 SOIC 3.90mm (.150") T/R
• Manufacturer: Microchip Technology

Specifications of SST25VF020B-80-4C-SAE-T

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 2M (256K x 8)
• Speed: 80MHz
• Interface: SPI Serial
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

A Microchip Technology Company
©2011 Silicon Storage Technology, Inc.
Read-ID (RDID)
The Read-ID instruction (RDID) identifies the devices as SST25VF020B and manufacturer as SST. The
device information can be read from executing an 8-bit command, 90H or ABH, followed by address
bits [A
and the device ID is located in address 00001H. Once the device is in Read-ID mode, the manufac-
turer’s and device ID output data toggles between address 00000H and 00001H until terminated by a
low to high transition on CE#.
Refer to Tables 7 and 8 for device identification data.
Figure 23:Read-ID Sequence
Table 8: Product Identification
Manufacturer’s ID
Device ID
SCK
CE#
SO
SI
SST25VF020B
23
Note: The manufacturer's and device ID output stream is continuous until terminated by a low to high transition on CE#.
MODE 3
MODE 0
-A
1. 00H will output the manfacturer's ID first and 01H will output device ID first before toggling between the two.
0
]. Following the Read-ID instruction, the manufacturer’s ID is located in address 00000H
Device ID = 8CH for SST25VF020B
MSB
0 1 2 3 4 5 6 7 8
90 or AB
HIGH IMPEDANCE
00
15 16
24
00
23 24
MSB
ADD
31 32
1
MSB
2 Mbit SPI Serial Flash
BF
39 40
Device ID
Address
00000H
00001H
47 48
BF
SST25VF020B
55 56
Device ID
S71417-03-000
63
IMPEDANCE
Data
BFH
8CH
Data Sheet
HIGH
1417 RdID.0
T8.0 1417
02/11