AT45DB021B-TI【PDF 10/32 页】IC FLASH 2MBIT 20MHZ 28TSOP

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Table 5-4.

Program and Erase Commands

Command

Buffer 1 Write

Buffer 2 Write

Buffer 1 to Main Memory Page Program with Built-in Erase

Buffer 2 to Main Memory Page Program with Built-in Erase

Buffer 1 to Main Memory Page Program without Built-in Erase

Buffer 2 to Main Memory Page Program without Built-in Erase

Page Erase

Block Erase

Main Memory Page Program through Buffer 1

Main Memory Page Program through Buffer 2

Table 5-5.

Additional Commands

Command

Main Memory Page to Buffer 1 Transfer

Main Memory Page to Buffer 2 Transfer

Main Memory Page to Buffer 1 Compare

Main Memory Page to Buffer 2 Compare

Auto Page Rewrite through Buffer 1

Auto Page Rewrite through Buffer 2

SCK Mode

Any

Any

Any

Any

Any

Any

Any

Any

Any

Any

SCK Mode

Any

Any

Any

Any

Any

Any

Opcode

84H

87H

83H

86H

88H

89H

81H

50H

82H

85H

Opcode

53H

55H

60H

61H

58H

59H

Note:

10

In Tables 2 and 3, an SCK mode designation of “Any” denotes any one of the four modes of operation (Inactive Clock Polarity

Low, Inactive Clock Polarity High, SPI Mode 0, or SPI Mode 3).

AT45DB021B

1937J–DFLSH–9/05

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