MR45V032A Datasheet, PDF (9/21 Pages) List of Unclassifed Manufacturers – 32k (4,096-Word x 8-Bit) FeRAM (Ferroelectric Random Access Memory) SPI

FEDR45V032A-01
MR45V032A
WRITE(Write to Memory Array）
Write command can be valid when CS# goes “L”,then the op-code and 16bit-adresses are inputted to serial
input”SI”. Writing is terminated when CS# goes high after data-input. If CS# will keep “L”,the internal adress
will be incresed automatically.When it reaches the most significant adress,the adress counter rolls over to
starting adress 0000h,and writing cycle(overwriting) can be continued infinitely.
WRITE(1Byte)
CS#
SCK
SI
0 1 2 3 4 5 6 7 8 9 10 11 12
21 22 23
15 14 13 12 11
X X X X A11
16bit Address An
210
A2 A1 A0
CS#
SCK
24 25 26 27 28 29 30 31
SI D7 D6 D5 D4 D3 D2 D1 D0
Data Byte 1
Note : WP# = Fixed ”H” , SO=High-Z
WRITE(Page)
CS#
0 1 2 3 4 5 6 7 8 9 10 11 12
21 22 23
SCK
SI
15 14 13 12 11
X X X X A11
210
A2 A1 A0
16bit Address An
CS#
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
SCK
SI
CS#
SCK
D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0
Data Byte 1
Data Byte 2
40 41 42 43 44 45 46 47
SI D7 D6 D5 D4 D3 D2 D1 D0
Data Byte 3
Note : WP# = Fixed ”H” , SO=High-Z
D7 D6 D5 D4 D3 D2 D1 D0
Data Byte N
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