AT45CS1282 datasheet(12/33 Pages) ATMEL

12 / 33 page

AT45CS1282 [Preliminary]

3447A–DFLSH–2/04

Note:

1. The Security Register Program command utilizes data stored in Buffer 1. Therefore,

this command must be used in conjunction with the Buffer 1 write command. See the

Security Register description for details.

Table 1. Read Commands

Command

Serial/8-bit

Opcode

Main Memory Page Read

Both

D2h

Continuous Array Read

Both

E8h

Buffer 1 Read

Serial

D4h

Buffer 2 Read

Serial

D6h

Buffer 1 Read

8-bit

54h

Buffer 2 Read

8-bit

56h

Table 2. Program and Erase Commands

Command

Serial/8-bit

Opcode

Buffer 1 Write

Both

84h

Buffer 2 Write

Both

87h

Buffer 1 to Main Memory Page Program

Both

88h

Buffer 1 to Main Memory Page Program,

Fast Program

Both

98h

Buffer 2 to Main Memory Page Program

Both

89h

Buffer 2 to Main Memory Page Program,

Fast Program

Both

99h

Sector 0a Erase

Both

50h

Sector 0b-63 Erase

Both

7Ch

Table 3. Additional Commands

Command

Serial/8-bit

Opcode

Main Memory Page to Buffer 1 Transfer

Both

53h

Main Memory Page to Buffer 2 Transfer

Both

55h

Main Memory Page to Buffer 1 Compare

Both

60h

Main Memory Page to Buffer 2 Compare

Both

61h

Status Register Read

Both

D7h

Manufacturer and Device ID Read

Serial

9Fh

Security Register Program

(1)

Both

9Ah

Security Register Read

Both

77h

AT45CS1282 Datasheet(PDF) 12 Page - ATMEL Corporation

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