鈥?/div>
Read Access Time 鈥?100 ns
Word-wide or Byte-wide Configurable
8-megabit Flash and Mask ROM Compatible
Low-power CMOS Operation
鈥?100 碌A Maximum Standby
鈥?50 mA Maximum Active at 5 MHz
Wide Selection of JEDEC Standard Packages
鈥?42-pin 600 mil PDIP
鈥?44-lead PLCC
鈥?44-lead SOIC (SOP)
鈥?48-lead TSOP (12 mm x 20 mm)
5V
鹵
10% Power Supply
High-reliability CMOS Technology
鈥?2,000 ESD Protection
鈥?200 mA Latch-up Immunity
Rapid鈩?Programming Algorithm 鈥?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>
8-megabit
(512K x 16 or
1024K x 8)
OTP EPROM
AT27C800
Not Recommended for
New Designs
Description
The AT27C800 is a low-power, high-performance, 8,388,608-bit, UV-erasable, pro-
grammable read-only memory (EPROM) organized as either 512K by 16 or 1024K by
(continued)
Pin Configurations
Pin Name
A0 - A18
O0 - O15
O15/A-1
BYTE/VPP
CE
OE
NC
Function
Addresses
Outputs
PDIP Top View
A18
A17
A7
A6
A5
A4
A3
A2
A1
A0
CE
GND
OE
O0
O8
O1
O9
O2
O10
O3
O11
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
NC
A8
A9
A10
A11
A12
A13
A14
A15
A16
BYTE/VPP
GND
O15/A-1
O7
O14
O6
O13
O5
O12
O4
VCC
SOIC (SOP)
NC
A18
A17
A7
A6
A5
A4
A3
A2
A1
A0
CE
GND
OE
O0
O8
O1
O9
O2
O10
O3
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
NC
NC
A8
A9
A10
A11
A12
A13
A14
A15
A16
BYTE/VPP
GND
O15/A-1
O7
O14
O6
O13
O5
O12
O4
VCC
Output/Address
Byte Mode/
Program Supply
Chip Enable
Output Enable
No Connect
TSOP
Type 1
PLCC Top View
A15
A14
A13
A12
A11
A10
A9
A8
NC
NC
NC
NC
NC
NC
NC
A18
A17
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
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/VPP
GND
O15/A-1
O7
O14
O6
O13
O5
O12
O4
VCC
O11
O3
O10
O2
O9
O1
O8
O0
OE
GND
CE
A0
Note: PLCC Package Pin 23 is
DON鈥橳 CONNECT.
O9
O2
O10
O3
O11
NC
VCC
O4
O12
O5
O13
18
19
20
21
22
23
24
25
26
27
28
A4
A3
A2
A1
A0
CE
GND
OE
O0
O8
O1
7
8
9
10
11
12
13
14
15
16
17
6
5
4
3
2
1
44
43
42
41
40
A5
A6
A7
A17
A18
NC
NC
A8
A9
A10
A11
39
38
37
36
35
34
33
32
31
30
29
A12
A13
A14
A15
A16
BYTE/VPP
GND
O15/A-1
O7
O14
O6
Rev. 0801C鈥?5/00
1
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