AT27C080
1
0360F-B–7/97
8-Megabit
(1M x 8)
UV Erasable
CMOS EPROM
AT27C080
Features
• Fast Read Access Time - 90 ns
• Low Power CMOS Operation
- 100 µA max. Standby
- 40 mA max. Active at 5 MHz
• JEDEC Standard Packages
- 32 Lead PLCC
- 32-Lead 600-mil PDIP and Cerdip
- 32-Lead 450-mil SOIC (SOP)
- 32-Lead TSOP
• 5V ± 10% Supply
• High-Reliability CMOS Technology
- 2,000V ESD Protection
- 200 mA Latchup Immunity
• Rapid
™
Programming Algorithm - 50 µs/byte (typical)
• CMOS and TTL Compatible Inputs and Outputs
• Integrated Product Identification Code
• Industrial and Commercial Temperature Ranges
Description
The AT27C080 chip is a low-power, high-performance 8,388,608-bit ultraviolet eras-
able programmable read only memory (EPROM) organized as 1M by 8 bits. The
AT27C080 requires only one 5V power supply in normal read mode operation. Any
byte can be accessed in less than 90 ns, eliminating the need for speed reducing
WAIT states on high-performance microprocessor systems.
Atmel’s scaled CMOS technology provides low active power consumption and fast
programming. Power consumption is typically 10 mA in active mode and less than 10
µA in standby mode.
(continued)
Pin Configurations
Pin Name Function
A0 - A19 Addresses
O0 - O7 Outputs
CE Chip Enable
OE Output Enable
PLCC Top View
5
6
7
8
9
10
11
12
13
29
28
27
26
25
24
23
22
21
A7
A6
A5
A4
A3
A2
A1
A0
O0
A14
A13
A8
A9
A11
OE/VPP
A10
CE
07
4 3 2 1
32 31 30
14 15 16 17 18 19 20
01 02
GND
03 04 05 06
A12 A15 A16 A19 VCC A18 A17
CDIP, PDIP, SOIC Top View
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
A19
A16
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
O0
O1
O2
GND
VCC
A18
A17
A14
A13
A8
A9
A11
OE/VPP
A10
CE
07
06
05
04
03
TSOP Top View
Type 1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
A11
A9
A8
A13
A14
A17
A18
VCC
A19
A16
A15
A12
A7
A6
A5
OE/VPP
A10
CE
07
06
05
04
03
GND
02
01
O0
A0
A1
A2
A3A4