A25LQ080 datasheet(21/58 Pages) AMICC

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A25LQ080 Series

(April, 2016, Version 1.0)

AMIC Technology Corp.

Read Data Bytes at Higher Speed by Dual Input and Dual Output (FAST_READ_DUAL_INPUT_OUTPUT)

The FAST_READ_DUAL_INPUT_OUTPUT (BBh) instruction

is similar to the FAST_READ (0Bh) instruction except the

data is input and output on two pins, IO0 and IO1, instead of

just DO. This allows data to be transferred from the

A25LQ080 at twice the rate of standard SPI devices.

Similar

the

FAST_READ

instruction,

the

FAST_READ_DUAL_INPUT_OUTPUT

instruction

can

operate at the highest possible frequency of fC (See AC

Characteristics).

Figure 10. FAST_READ_DUAL_INPUT_OUTPUT Instruction Sequence and Data-Out Sequence

Instruction (BBh)

High Impedance

MSB

810

01 2 3 4 5 6 7

24-Bit Address

16 17 18 19

22 20 18

6 42 0

IO0

IO1

20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35

Dummy

Byte

MSB

7 5 31 75 3

MSB

7 5 31 75 3 1

6 4 2 0 6 4 2 0 6 4 2 0 6 4 2 0

Data Out 2

Data Out 3

Data Out 4

Data Out 5

DIO switches from input to output

21 19

5 3 1

6 4 2 0

7 53 1

MSB

Data Out 1

IO0

IO1

7 5 3 1

Note: Address bits A23 to A20 are Don’t Care, for A25LQ080.

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