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AT27C2048-90 Datasheet

  • AT27C2048-90

  • 2-Megabit 128K x 16 OTP EPROM

  • 9頁

  • ATMEL   ATMEL

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AT27C2048
Features
鈥?/div>
Fast Read Access Time - 55 ns
鈥?/div>
Low Power CMOS Operation
鈥?/div>
鈥?100
碌A(chǔ)
Maximum Standby
鈥?35 mA Maximum Active at 5 MHz
JEDEC Standard Packages
鈥?40-Lead 600 mil PDIP
鈥?44-Lead PLCC
鈥?40-Lead TSOP (10 mm X 14 mm)
Direct Upgrade from 512K bit and 1M bit
(AT27C516 and AT27C1024) EPROMs
5V
鹵
10% Power Supply
High Reliability CMOS Technology
鈥?2,000V ESD Protection
鈥?200 mA Latchup Immunity
Rapid
鈩?/div>
Programming Algorithm - 50
碌s/word
(typical)
CMOS and TTL Compatible Inputs and Outputs
Integrated Product Identification Code
Commercial and Industrial Temperature Ranges
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
2-Megabit
(128K x 16)
OTP EPROM
AT27C2048
Description
The AT27C2048 is a low-power, high performance 2,097,152-bit one-time program-
mable read only memory (OTP EPROM) organized 128K by 16 bits. It requires a sin-
gle 5V power supply in normal read mode operation. Any word can be accessed in
less than 55 ns, eliminating the need for speed-reducing WAIT states. The by-16
organization makes this part ideal for high-performance 16 and 32 bit microprocessor
systems.
(continued)
Pin Configurations
Pin Name
A0 - A16
O0 - O15
CE
OE
PGM
NC
Note:
PDIP Top View
VPP
CE
O15
O14
O13
O12
O11
O10
O9
O8
GND
O7
O6
O5
O4
O3
O2
O1
O0
OE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
VCC
PGM
A16
A15
A14
A13
A12
A11
A10
A9
GND
A8
A7
A6
A5
A4
A3
A2
A1
A0
Function
Addresses
Outputs
Chip Enable
Output Enable
Program
No Connect
Both GND pins must be con-
nected.
PLCC Top View
O13
O14
O15
CE
VPP
DC
VCC
PGM
A16
A15
A14
A9
A10
A11
A12
A13
A14
A15
A16
PGM
VCC
VPP
CE
O15
O14
O13
O12
O11
O10
O9
O8
TSOP Top View
Type 1
A13
A12
A11
A10
A9
GND
NC
A8
A7
A6
A5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
GND
A8
A7
A6
A5
A4
A3
A2
A1
A0
OE
O0
O1
O2
O3
O4
O5
O6
O7
GND
O3
O2
O1
O0
OE
DC
A0
A1
A2
A3
A4
18
19
20
21
22
23
24
25
26
27
28
O12
O11
O10
O9
O8
GND
NC
O7
O6
O5
O4
7
8
9
10
11
12
13
14
15
16
17
6
5
4
3
2
1
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
0632B-A鈥?6/97
Note:
PLCC package pins 1 and 23
are DON鈥橳 CONNECT.
1

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