AT45DB011-XI

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P20

AT45DB011

13

Detailed Bit-level Read Timing – Inactive Clock Polarity High

Main Memory Page Read

Buffer Read

Status Register Read

SI

0

1

0

10

XXX

CS

SO

SCK

12345 61 62 63 64 65 66 67

XX

HIGH-IMPEDANCE

D

7

D

6

D

5

DATA OUT

COMMAND OPCODE

MSB

tSU

tV

D

4

68

SI

0

1

0

10

XXX

CS

SO

SCK

12345 37 38 39 40 41 42 43

XX

HIGH-IMPEDANCE

D

7

D

6

D

5

DATA OUT

COMMAND OPCODE

MSB

tSU

tV

D

4

44

SI

0

1

0

10

111

CS

SO

SCK

12345 7891011 12 17 18

HIGH-IMPEDANCE

D

7

D

6

D

5

STATUS REGISTER OUTPUT

COMMAND OPCODE

MSB

tSU

tV

6

D

4

D

0

D

7

LSB MSB

D

6

AT45DB011

14

Table 1.

Main Memory

Page Read

Buffer

Read

Main Memory Page

to Buffer Transfer

Main Memory Page

to Buffer Compare

Buffer

Write

Opcode

52H 54H 53H 60H 84H

00001

11110

00010

11100

00000

01001

10100

00100

rXr rX

rXr rX

rXr rX

rXr rX

rXr rX

rXr rX

PA8 X PA8 PA8 X

PA7 X PA7 PA7 X

PA6 X PA6 PA6 X

PA5 X PA5 PA5 X

PA4 X PA4 PA4 X

PA3 X PA3 PA3 X

PA2 X PA2 PA2 X

PA1 X PA1 PA1 X

PA0 X PA0 PA0 X

BA8 BFA8 X X BFA8

BA7 BFA7 X X BFA7

BA6 BFA6 X X BFA6

BA5 BFA5 X X BFA5

BA4 BFA4 X X BFA4

BA3 BFA3 X X BFA3

BA2 BFA2 X X BFA2

BA1 BFA1 X X BFA1

BA0 BFA0 X X BFA0

XX

XX

XX

XX

XX

XX

XX

XX

•

•

•

X (64th bit)

X (Don’t Care)

r (reserved bits)

AT45DB011

15

X (Don’t Care)

r (reserved bits)

Table 2.

Buffer to

Main Memory

Page Program

with Built-in Erase

Buffer to

Main Memory

Page Program

without Built-in

Erase

Page

Erase

Block

Erase

Main Memory

Page Program

through Buffer

Auto Page

Rewrite

through Buffer

Status

Register

Opcode

83H 88H 81H 50H 82H 58H 57H

111 0100

000 1011

000 0000

000 1011

010 0010

000 0001

100 0101

101 0001

rrr rrr

rrr rrr

rrr rrr

rrr rrr

rrr rrr

rrr rrr

PA8 PA8 PA8 PA8 PA8 PA8

PA7 PA7 PA7 PA7 PA7 PA7

PA6 PA6 PA6 PA6 PA6 PA6

PA5 PA5 PA5 PA5 PA5 PA5

PA4 PA4 PA4 PA4 PA4 PA4

PA3 PA3 PA3 PA3 PA3 PA3

PA2 PA2 PA2 X PA2 PA2

PA1 PA1 PA1 X PA1 PA1

PA0 PA0 PA0 X PA0 PA0

X X X X BFA8 X

X X X X BFA7 X

X X X X BFA6 X

X X X X BFA5 X

X X X X BFA4 X

X X X X BFA3 X

X X X X BFA2 X

X X X X BFA1 X

X X X X BFA0 X

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P20

AT45DB011-XI

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IC FLASH 1M SPI 15MHZ 14TSSOP

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