AT45DB021D-SSU ATMEL Corporation, AT45DB021D-SSU Datasheet
AT45DB021D-SSU
Manufacturer Part Number
AT45DB021D-SSU
Description
Manufacturer
ATMEL Corporation
Datasheets
1.AT45DB021D-SSU.pdf
(52 pages)
2.AT45DB021D-SSU.pdf
(52 pages)
3.AT45DB011D-SSU.pdf
(21 pages)
Specifications of AT45DB021D-SSU
Case
SOP
Date_code
07+
Features
•
•
•
•
•
•
•
•
•
•
•
•
•
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Description
The AT45DB161 is a 2.7-volt only, serial interface Flash memory suitable for
in-system reprogramming. Its 17,301,504 bits of memory are organized as 4096
pages of 528 bytes each. In addition to the main memory, the AT45DB161 also con-
tains two SRAM data buffers of 528 bytes each. The buffers allow receiving of data
Pin Configurations
Note: PLCC package pins 16
and 17 are DON’T CONNECT
Pin Name
CS
SCK
SI
SO
WP
RESET
RDY/BUSY
Single 2.7V - 3.6V Supply
Serial Interface Architecture
Page Program Operation
Optional Page and Block Erase Operations
Two 528-byte SRAM Data Buffers – Allows Receiving of Data
while Reprogramming of Nonvolatile Memory
Internal Program and Control Timer
Fast Page Program Time – 7 ms Typical
120 µs Typical Page to Buffer Transfer Time
Low Power Dissipation
13 MHz Max Clock Frequency
Hardware Data Protection Feature
Serial Peripheral Interface (SPI) Compatible – Modes 0 and 3
CMOS and TTL Compatible Inputs and Outputs
Commercial and Industrial Temperature Ranges
SCK
SO
NC
NC
NC
NC
NC
NC
– Single Cycle Reprogram (Erase and Program)
– 4096 Pages (528 Bytes/Page) Main Memory
– 4 mA Active Read Current Typical
– 3 µA CMOS Standby Current Typical
SI
5
6
7
8
9
10
11
12
13
PLCC
Chip Select
Hardware Page
Write Protect Pin
Chip Reset
Ready/Busy
Function
Serial Clock
Serial Input
Serial Output
29
28
27
26
25
24
23
22
21
WP
RESET
RDY/BUSY
NC
NC
NC
NC
NC
NC
RDY/BUSY
GND
SCK
RESET
NC
NC
SO
NC
NC
NC
NC
NC
NC
NC
CS
SI
GND
VCC
SCK
WP
NC
NC
NC
NC
NC
CS
SO
SI
1
2
3
4
5
6
7
8
9
10
11
12
13
14
SOIC
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
TSOP Top View
VCC
NC
NC
WP
RESET
RDY/BUSY
NC
NC
NC
NC
NC
NC
NC
NC
Type 1
A
B
C
D
E
through Package
CBGA Top View
NC
NC
NC
NC
1
SCK
NC
SO
NC
CS
2
(continued)
RDY/BSY
28
27
26
25
24
23
22
21
20
19
18
17
16
15
GND
NC
NC
3
SI
RESET
VCC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
WP
NC
4
NC
NC
NC
NC
NC
5
16-megabit
2.7-volt Only
Serial
DataFlash
AT45DB161
Recommend using
AT45DB161B for new
designs.
Rev. 0807E–01/01
®
1
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