AT45DB041B View Datasheet(PDF) - Atmel Corporation

Part Name

Description

MFG CO.

AT45DB041B

4-megabit 2.5-volt or 2.7-volt DataFlash®

Atmel Corporation 

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17. Detailed Bit-level Read Timing – SPI Mode 3

17.1 Continuous Array Read (Opcode: E8H)

CS

AT45DB041B

SCK

SI

SO

1

2

63 64 65 66 67

tSU

1

1

X

HIGH-IMPEDANCE

X

X

tV

DATA OUT

D7 D6 D5

17.2 Main Memory Page Read (Opcode: D2H)

CS

LSB MSB

D2 D1 D0 D7 D6 D5

BIT 2111

OF

PAGE n

BIT 0

OF

PAGE n+1

SCK

SI

SO

1

2

3

4

5

61 62 63 64 65 66 67 68

tSU

COMMAND OPCODE

1

1

0

1

0

X

X

X

X

X

HIGH-IMPEDANCE

tV

DATA OUT

D7 D6 D5 D4

MSB

17.3 Buffer Read (Opcode: D4H or D6H)

CS

SCK

SI

SO

1

2

3

4

5

37 38 39 40 41 42 43 44

tSU

COMMAND OPCODE

1

1

0

1

0

X

X

X

X

X

HIGH-IMPEDANCE

tV

DATA OUT

D7 D6 D5 D4

MSB

25

3443C–DFLSH–5/05

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