©2011 Silicon Storage Technology, Inc.

S71296-05-000

02/11

10

8 Mbit SPI Serial Flash

SST25VF080B

Data Sheet

A Microchip Technology Company

Read (25/33 MHz)

The Read instruction, 03H, supports up to 25 MHz (for SST25VF080B-50-xx-xxxx) or 33 MHz (for

SST25VF080B-80-xx-xxxx) Read. The device outputs the data starting from the specified address

location. The data output stream is continuous through all addresses until terminated by a low to high

transition on CE#. The internal address pointer will automatically increment until the highest memory

address is reached. Once the highest memory address is reached, the address pointer will automati-

cally increment to the beginning (wrap-around) of the address space. Once the data from address

location 1FFFFFH has been read, the next output will be from address location 000000H.

The Read instruction is initiated by executing an 8-bit command, 03H, followed by address bits [A23-

A0]. CE# must remain active low for the duration of the Read cycle. See Figure 5 for the Read

sequence.

Figure 5: Read Sequence

6. To continue programming to the next sequential address location, enter the 8-bit command, ADH, followed by 2 bytes of

programmed into the

7. The Read-Status-Register is continuous with ongoing clock cycles until terminated by a low to high transition on CE#.

turer’s ID and device ID output stream is continuous until terminated by a low-to-high transition on CE#.

1296 ReadSeq 0.0

CE#

SO

SI

SCK

ADD.

01 2 3 4 5 6 7 8

ADD.

ADD.

03

HIGH IMPEDANCE

15 16

23 24

31 32

39 40

70

47

48

55 56

63 64

N+2

N+3

N+4

N

N+1

MSB

MSB

MSB

MODE 0

MODE 3