SST25VF064C datasheet(13/37 Pages) MICROCHIP

13 / 37 page

DS20005036C

04/15

64 Mbit SPI Serial Dual I/O Flash

SST25VF064C

EOL Data Sheet

High-Speed Read (80 MHz)

The High-Speed Read instruction supporting up to 80 MHz Read is initiated by executing an 8-bit com-

mand, 0BH, followed by address bits A23-A0 and a dummy byte. CE# must remain active low for the

duration of the High-Speed Read cycle. See Figure 7 for the High-Speed Read sequence.

Following a dummy cycle, the High-Speed Read instruction 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

automatically increment to the beginning (wrap-around) of the address space. For example, once the

data from address location 7FFFFFH is read, the next output is from address location 000000H.

Figure 7: High-Speed Read Sequence

1392 F07.0

CE#

SCK

ADD.

012 34 5 6 7 8

ADD.

HIGH IMPEDANCE

15 16

23 24

31 32

39 40

47 48

55 56

63 64

N+2

N+3

N+4

N+1

MSB

MODE 0

MODE 3

DOUT

71 72

DOUT

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