AT45DB021B-RC Atmel, AT45DB021B-RC Datasheet - Page 2

• 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

2. Pin Configurations and Pinouts
2
AT45DB021B
Table 2-1.
Pin Name
CS
SCK
SI
SO
WP
RESET
RDY/BUSY
Figure 2-1.
Figure 2-3.
Note:
RDY/BUSY
1. This package is not recommended for new designs.
RESET
GND
VCC
SCK
WP
NC
NC
NC
NC
NC
SO
CS
SI
Pin Configurations
TSOP Top View, Type 1
28-SOIC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
GND
SCK
NC
NC
SO
NC
NC
NC
NC
NC
NC
NC
CS
SI
(1)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VCC
NC
NC
WP
RESET
RDY/BUSY
NC
NC
NC
NC
NC
NC
NC
NC
Function
Chip Select
Serial Clock
Serial Input
Serial Output
Hardware Page Write Protect Pin
Chip Reset
Ready/Busy
28
27
26
25
24
23
22
21
20
19
18
17
16
15
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
Figure 2-2.
Figure 2-4.
RESET
C
SCK
A
B
CS
SI
SCK
CS
SO
1
1
2
3
4
8-SOIC
CBGA Top View
through Package
RDY/BSY
GND
SI
2
1937J–DFLSH–9/05
RESET
VCC
8
7
6
5
WP
3
SO
GND
VCC
WP