AT27C800
Features
•
•
•
•
•
Read Access Time - 100 ns
Word-wide or Byte-wide Configurable
8-Megabit Flash and Mask ROM Compatable
Low Power CMOS Operation
- 100
µ
A Maximum Standby
- 50 mA Maximum Active at 5 MHz
Wide Selection of JEDEC Standard Packages
- 42-Lead 600 mil Cerdip and PDIP
- 44-Lead SOIC (SOP)
- 48-Lead TSOP (12 mm x 20 mm)
5V
±
10% Power Supply
High Reliability CMOS Technology
- 2,000 ESD Protection
- 200 mA Latchup Immunity
Rapid
TM
Programming Algorithm - 50
µ
s/word (typical)
CMOS and TTL Compatible Inputs and Outputs
Integrated Product Identification Code
Commercial and Industrial Temperature Ranges
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•
Description
The AT27C800 is a low-power, high performance 8,388,608-bit UV erasable program-
mable read only memory (EPROM) organized as either 512K by 16 or 1024K by 8
bits. It requires a single 5V power supply in normal read mode operation. Any word
can be accessed in less than 100 ns, eliminating the need for speed-reducing WAIT
states. The x16 organization makes this part ideal for high-performance 16- and 32-bit
(continued)
microprocessor systems.
8-Megabit
(512K x 16 or
1024K x 8)
UV Erasable
EPROM
AT27C800
Preliminary
Pin Configurations
Pin Name
A0 - A18
O0 - O15
O15/A-1
BYTE/VPP
CE
OE
NC
Function
Addresses
Outputs
Output/Address
Byte Mode/
Program Supply
Chip Enable
Output Enable
No Connect
CDIP, 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
TSOP
Type 1
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
0801A-A
1
ATMEL [ ATMEL CORPORATION ]
