AT45DB021B-RC Atmel, AT45DB021B-RC Datasheet - Page 23

• 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

14.3
14.4
15. Detailed Bit-level Read Timing – SPI Mode 3
15.1
1937J–DFLSH–9/05
SCK
SO
CS
SCK
SI
SCK
SO
CS
SO
CS
Buffer Read (Opcode: D4H or D6H)
Status Register Read (Opcode: D7H)
Continuous Array Read (Opcode: E8H)
SI
SI
t
SU
t
SU
t
SU
1
HIGH-IMPEDANCE
1
1
1
1
1
2
COMMAND OPCODE
2
1
1
HIGH-IMPEDANCE
2
1
COMMAND OPCODE
3
0
3
0
X
HIGH-IMPEDANCE
4
1
63
4
1
X
5
0
64
t
V
5
0
X
6
1
65
D 7
DATA OUT
7
1
66
36
X
D 6
t
V
67
8
1
37
X
D 5
MSB
D 7
9
38
X
10
D 6
D 2
39
X
STATUS REGISTER OUTPUT
t
V
11
D 5
D 1
BIT 2111
40
PAGE n
X
OF
LSB
12
D 4
D 0
MSB
41
D 7
MSB
D 7
PAGE n+1
DATA OUT
42
D 6
BIT 0
OF
AT45DB021B
D 1
16
D 6
43
D 5
LSB
D 5
D 0
17
D 4
MSB
D 7
23