鈥?/div>
鈥?5V Read
鈥?5V Reprogramming
Fast Read Access Time 鈥?70 ns
Internal Erase/Program Control
Sector Architecture
鈥?One 8K Word (16K Bytes) Boot Block with Programming Lockout
鈥?Two 4K Word (8K Bytes) Parameter Blocks
鈥?One 112K Word (224K bytes) Main Memory Array Block
Fast Sector Erase Time 鈥?10 seconds
Byte-by-byte or Word-by-word Programming 鈥?50 碌s
Hardware Data Protection
Data Polling for End of Program Detection
Low Power Dissipation
鈥?50 mA Active Current
鈥?100 碌A(chǔ) CMOS Standby Current
Typical 10,000 Write Cycles
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
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鈥檚
(continued)
2-megabit
(256K x 8/
128K x 16)
5-volt Only
CMOS Flash
Memory
AT49F2048A
Pin Configurations
Pin Name
A0 - A16
CE
OE
WE
RESET
I/O0 - I/O14
I/O15 (A-1)
BYTE
NC
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
SOIC (SOP)
NC
NC
NC
A7
A6
A5
A4
A3
A2
A1
A0
CE
GND
OE
I/O0
I/O8
I/O1
I/O9
I/O2
I/O10
I/O3
I/O11
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
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
A15
A14
A13
A12
A11
A10
A9
A8
NC
NC
WE
RESET
NC
NC
NC
NC
NC
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
TSOP Top View
Type 1
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
Rev. 1159F鈥?4/01
Note:
鈥溾€⑩€?denotes a white dot marked on
the package.
1
next
AT49F2048A-90TI 產(chǎn)品屬性
Atmel
閃存
8 bit, 16 bit
NOR
2 Mbit
Sectored
Parallel
90 ns
5.5 V
4.5 V
50 mA
+ 85 C
SMD/SMT
TSOP-48
128 KB x 16
AT49F2048A-90TI相關(guān)型號PDF文件下載
-
型號
版本
描述
廠商
下載
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英文版
PROTECTIVE GUARD KB SER SQ&RND
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英文版
COVER DUST POLY FOR KB SERIES
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英文版
CENTER BARRIER BLACK POLY LB SER
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英文版
PROTECTIVE GUARD FOR LB SER SQ
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英文版
Round Pushbutton Switch Cap Black Slip On
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英文版
Round Pushbutton Switch Cap Red Slip On
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ATMEL Corporation [2-Megabit 256K x 8 5-volt Only CMOS Flas...
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