AT45DB021B-RC Atmel, AT45DB021B-RC Datasheet - Page 22

• Manufacturer Part Number: AT45DB021B-RC
• Description: IC FLASH 2MBIT 20MHZ 28SOIC
• Manufacturer: Atmel

Specifications of AT45DB021B-RC

• Format - Memory: FLASH
• Memory Type: DataFLASH
• Memory Size: 2M (1024 pages x 264 bytes)
• Speed: 20MHz
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

13.4
14. Detailed Bit-level Read Timing – SPI Mode 0
14.1
14.2
22
SCK
SO
CS
SCK
SCK
SI
SO
CS
SO
CS
Status Register Read (Opcode: 57H)
Continuous Array Read (Opcode: E8H)
Main Memory Page Read (Opcode: D2H)
SI
SI
AT45DB021B
t
SU
t
SU
t
SU
1
HIGH-IMPEDANCE
0
1
1
1
1
2
HIGH-IMPEDANCE
COMMAND OPCODE
1
2
1
2
1
3
COMMAND OPCODE
0
3
0
4
62
X
HIGH-IMPEDANCE
1
4
1
5
63
X
0
t
V
5
0
6
64
X
1
7
D 7
65
DATA OUT
1
60
X
D 6
8
66
t
V
1
61
X
D 5
67
9
MSB
D 7
62
X
10
D 6
D 2
STATUS REGISTER OUTPUT
63
X
11
t
D 5
V
D 1
BIT 2111
64
PAGE n
X
12
OF
D 4
LSB
D 0
MSB
65
D 7
MSB
D 7
PAGE n+1
DATA OUT
66
D 6
BIT 0
OF
LSB
D 0
D 6
67
D 5
17
MSB
D 5
D 7
D 4
18
1937J–DFLSH–9/05
D 6