SST25VF040B-50-4C-ZAE Microchip Technology, SST25VF040B-50-4C-ZAE Datasheet - Page 20

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SST25VF040B-50-4C-ZAE

Manufacturer Part Number
SST25VF040B-50-4C-ZAE
Description
2.7V To 3.6V 4Mbit SPI Serial Flash 8 CSP T/R
Manufacturer
Microchip Technology

Specifications of SST25VF040B-50-4C-ZAE

Format - Memory
FLASH
Memory Type
FLASH
Memory Size
4M (512K x 8)
Speed
50MHz
Interface
SPI Serial
Voltage - Supply
2.7 V ~ 3.6 V
Operating Temperature
0°C ~ 70°C
Package / Case
8-CSP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SST25VF040B-50-4C-ZAE
Manufacturer:
SST
Quantity:
20 000
Data Sheet
JEDEC Read-ID
The JEDEC Read-ID instruction identifies the device as
SST25VF040B and the manufacturer as SST. The device
information can be read from executing the 8-bit command,
9FH. Following the JEDEC Read-ID instruction, the 8-bit
manufacturer’s ID, BFH, is output from the device. After
that, a 16-bit device ID is shifted out on the SO pin. Byte 1,
TABLE 6: JEDEC Read-ID Data
©2009 Silicon Storage Technology, Inc.
Manufacturer’s ID
FIGURE 20: JEDEC Read-ID Sequence
Byte1
BFH
SCK
CE#
SO
SI
HIGH IMPEDANCE
MODE 3
MODE 0
Memory Type
0 1 2 3 4 5 6 7 8
Byte 2
25H
9F
Device ID
Memory Capacity
MSB
Byte 3
8DH
9 10 11 12 13
T6.0 1295
BF
14
20
15 16
MSB
BFH, identifies the manufacturer as SST. Byte 2, 25H, iden-
tifies the memory type as SPI Serial Flash. Byte 3, 8DH,
identifies the device as SST25VF040B. The instruction
sequence is shown in Figure 20. The JEDEC Read ID
instruction is terminated by a low to high transition on CE#
at any time during data output.
17 18
19 20 21 22 23
25
24 25 26 27
4 Mbit SPI Serial Flash
8D
1295 JEDECID.1
28 29 30 31
SST25VF040B
32
S71295-05-000
33
34
10/09

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