AT45DB321B-CI Atmel, AT45DB321B-CI Datasheet - Page 10

• Manufacturer Part Number: AT45DB321B-CI
• Description: IC FLASH 32MBIT 20MHZ 44CBGA
• Manufacturer: Atmel

Specifications of AT45DB321B-CI

• Format - Memory: FLASH
• Memory Type: DataFLASH
• Memory Size: 32M (8192 pages x 528 bytes)
• Speed: 20MHz
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-CBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Table 1. Read Commands
Table 2. Program and Erase Commands
Table 3. Additional Commands
Note:
10
Command
Continuous Array Read
Main Memory Page Read
Buffer 1 Read
Buffer 2 Read
Status Register Read
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).
AT45DB321B
SCK Mode
Inactive Clock Polarity Low or High
SPI Mode 0 or 3
Inactive Clock Polarity Low or High
SPI Mode 0 or 3
Inactive Clock Polarity Low or High
SPI Mode 0 or 3
Inactive Clock Polarity Low or High
SPI Mode 0 or 3
Inactive Clock Polarity Low or High
SPI Mode 0 or 3
SCK Mode
SCK Mode
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Opcode
Opcode
Opcode
E8H
D2H
D4H
D6H
D7H
84H
87H
83H
86H
88H
89H
81H
50H
82H
85H
68H
52H
54H
56H
57H
53H
55H
60H
61H
58H
59H
2223E–DFLASH–11//03