S25FL128SDPMFIG11 Spansion, S25FL128SDPMFIG11 Datasheet - Page 80

• Manufacturer Part Number: S25FL128SDPMFIG11
• Description: Flash 128Mb 3V 66MHz Serial NOR Flash
• Manufacturer: Spansion

Specifications of S25FL128SDPMFIG11

• Rohs: yes
• Data Bus Width: 1 bit
• Memory Type: Flash
• Memory Size: 128 Mbit
• Architecture: Uniform
• Timing Type: Asynchronous
• Interface Type: SPI
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 2.7 V
• Maximum Operating Current: 100 mA
• Operating Temperature: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SO-16

80
10.2.2
10.2.3
S C K
C S#
S O
S I
Read Identification (RDID 9Fh)
Read Electronic Signature (RES) (ABh)
The Read Identification (RDID) command provides read access to manufacturer identification, device
identification, and Common Flash Interface (CFI) information. The manufacturer identification is assigned by
JEDEC. The CFI structure is defined by JEDEC standard. The device identification and CFI values are
assigned by Spansion.
The JEDEC Common Flash Interface (CFI) specification defines a device information structure, which allows
a vendor-specified software flash management program (driver) to be used for entire families of flash devices.
Software support can then be device-independent, JEDEC manufacturer ID independent, forward and
backward-compatible for the specified flash device families. System vendors can standardize their flash
drivers for long-term software compatibility by using the CFI values to configure a family driver from the CFI
information of the device in use.
Any RDID command issued while a program, erase, or write cycle is in progress is ignored and has no effect
on execution of the program, erase, or write cycle that is in progress.
The RDID instruction is shifted on SI. After the last bit of the RDID instruction is shifted into the device, a byte
of manufacturer identification, two bytes of device identification, extended device identification, and CFI
information will be shifted sequentially out on SO. As a whole this information is referred to as ID-CFI. See
CFI Address Space on page 56
Continued shifting of output beyond the end of the defined ID-CFI address space will provide undefined data.
The RDID command sequence is terminated by driving CS# to the logic high state anytime during data
output.
The maximum clock frequency for the RDID command is 133 MHz.
The RES command is used to read a single byte Electronic Signature from SO. RES is only supported for
backward compatibility and should not be used for new software designs. New software designs should
instead make use of the RDID command.
The RES instruction is shifted in followed by three dummy bytes onto SI. After the last bit of the three dummy
bytes are shifted into the device, a byte of Electronic Signature will be shifted out of SO. Each bit is shifted out
by the falling edge of SCK. The maximum clock frequency for the RES command is 50 MHz.
The Electronic Signature can be read repeatedly by applying multiples of eight clock cycles.
The RES command sequence is terminated by driving CS# to the logic high state anytime during data output.
0
1
Figure 10.2 Read Identification (RDID) Command Sequence
High Impedance
2
Instruction
3
4
5
S25FL128S and S25FL256S
6
for the detail description of the ID-CFI contents.
7
0
Manufacturer / Device Identification
8
1
9
D a t a
2
10
20
28
S h e e t
21
29
22
30
23
31
24
32
S25FL128S_256S_00_05 July 12, 2012
Extended Device Information
25
33
26
34
644
652
645
653
646
654
1
647
655
ID-