MX25R8035F datasheet(36/89 Pages) MCNIX

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ADVANCED INFORMATION

REV. 0.01, JAN. 06, 2015

MX25R8035F

P/N: PM2164

9-11. Read Data Bytes at Higher Speed (FAST_READ)

The FAST_READ instruction is for quickly reading data out. The address is latched on rising edge of SCLK, and

data of each bit shifts out on the falling edge of SCLK at a maximum frequency fC. The first address byte can be at

any location. The address is automatically increased to the next higher address after each byte data is shifted out,

so the whole memory can be read out at a single FAST_READ instruction. The address counter rolls over to 0 when

the highest address has been reached.

The sequence of issuing FAST_READ instruction is: CS# goes low→ sending FAST_READ instruction code→

3-byte address on SI→1-dummy byte (default) address on SI→ data out on SO→ to end FAST_READ operation

can use CS# to high at any time during data out.

While Program/Erase/Write Status Register cycle is in progress, FAST_READ instruction is rejected without any

impact on the Program/Erase/Write Status Register current cycle.

Figure 17. Read at Higher Speed (FAST_READ) Sequence

345678 9 10

28 29 30 31

22 21

3210

High-Z

32 33 34

36 37 38 39 40 41 42 43 44 45 46

76543 2

DATA OUT 1

Dummy Cycle

MSB

7 6543210

DATA OUT 2

MSB

76543 2

SCLK

CS#

SCLK

CS#

0Bh

Command

Mode 3

Mode 0

24-Bit Address

MX25R8035F Scheda tecnica(PDF) 36 Page - Macronix International