AT49F2048A90TI ATMEL Corporation, AT49F2048A90TI Datasheet
AT49F2048A90TI
Manufacturer Part Number
AT49F2048A90TI
Description
TSOP48
Manufacturer
ATMEL Corporation
Datasheet
1.AT49F2048A90TI.pdf
(13 pages)
Specifications of AT49F2048A90TI
Date_code
04+
Features
•
•
•
•
•
•
•
•
•
•
Description
The AT49F2048A is a 5-volt-only, 2-megabit Flash memory organized as 262,144
words of 8 bits each or 128K words of 16 bits each. Manufactured with Atmel’s
Pin Configurations
Pin Name
A0 - A16
CE
OE
WE
RESET
I/O0 - I/O14
I/O15 (A-1)
BYTE
NC
Single-voltage Operation
Fast Read Access Time – 70 ns
Internal Erase/Program Control
Sector Architecture
Fast Sector Erase Time – 10 seconds
Byte-by-byte or Word-by-word Programming – 50 µs
Hardware Data Protection
Data Polling for End of Program Detection
Low Power Dissipation
Typical 10,000 Write Cycles
– 5V Read
– 5V Reprogramming
– One 8K Word (16K Bytes) Boot Block with Programming Lockout
– Two 4K Word (8K Bytes) Parameter Blocks
– One 112K Word (224K bytes) Main Memory Array Block
– 50 mA Active Current
– 100 µA CMOS Standby Current
I/O10
I/O11
GND
I/O0
I/O8
I/O1
I/O9
I/O2
I/O3
NC
NC
NC
CE
OE
A7
A6
A5
A4
A3
A2
A1
A0
SOIC (SOP)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
Function
Addresses
Chip Enable
Output Enable
Write Enable
Reset
Data Inputs/Outputs
I/O15 (Data Input/Output, Word Mode)
A-1 (LSB Address Input, Byte Mode)
Selects Byte or Word Mode
No Connect
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
RESET
WE
A8
A9
A10
A11
A12
A13
A14
A15
A16
BYTE
GND
I/O15/A-1
I/O7
I/O14
I/O6
I/O13
I/O5
I/O12
I/O4
VCC
Note:
RESET
A15
A14
A13
A12
A11
A10
WE
NC
NC
NC
NC
NC
NC
NC
A9
A8
A7
A6
A5
A4
A3
A2
A1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
“•” denotes a white dot marked on
the package.
TSOP Top View
Type 1
(continued)
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
A16
BYTE
GND
I/O15/A-1
I/O7
I/O14
I/O6
I/O13
I/O5
I/O12
I/O4
VCC
I/O11
I/O3
I/O10
I/O2
I/O9
I/O1
I/O8
I/O0
OE
GND
CE
A0
Not Recommended
for New Design
Contact Atmel to discuss
the latest design in trends
and options
2-megabit
(256K x 8/
128K x 16)
5-volt Only
CMOS Flash
Memory
AT49F2048A
Rev. 1159F–04/01
1
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