AT45DB321B-CI Atmel, AT45DB321B-CI Datasheet - Page 20

• 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

Detailed Bit-level Read Timing – Inactive Clock Polarity High
Continuous Array Read (Opcode: 68H)
Main Memory Page Read (Opcode: 52H)
20
SCK
SCK
SO
CS
SO
CS
SI
SI
AT45DB321B
t
SU
t
SU
1
HIGH-IMPEDANCE
1
0
0
2
COMMAND OPCODE
2
1
1
3
0
HIGH-IMPEDANCE
X
4
63
1
X
5
64
t
V
0
X
65
D 7
DATA OUT
66
X
D 6
61
67
X
D 5
62
X
63
D 2
X
64
t
V
D 1
BIT 4223
PAGE n
X
OF
65
LSB
D 0
MSB
D 7
66
MSB
D 7
PAGE n+1
DATA OUT
D 6
BIT 0
OF
67
D 6
D 5
68
D 5
2223E–DFLASH–11//03
D 4