at45db021b ATMEL Corporation, at45db021b Datasheet - Page 10

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at45db021b

Manufacturer Part Number
at45db021b
Description
At45db021b 2-megabit 2.7-volt Only Dataflash
Manufacturer
ATMEL Corporation
Datasheet

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Table 5-4.
Table 5-5.
Note:
10
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
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
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
Program and Erase Commands
Additional Commands
SCK Mode
SCK Mode
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Opcode
Opcode
84H
87H
83H
86H
88H
89H
81H
50H
82H
85H
53H
55H
60H
61H
58H
59H
1937J–DFLSH–9/05

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