27C080 8192K 100ns CMOS EPROM

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The AT27C080 chip is a low-power, high-performance 8,388,608-bit one-time programmable read-only memory (OTP 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.

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27C080 Pinout

27C080 Pin Configuration

Pin Number	Pin No	Description
1	A19	Address Input
2	A16	Address Input
3	A15	Address Input
4	A12	Address Input
5	A7	Address Input
6	A6	Address Input
7	A5	Address Input
8	A4	Address Input
9	A3	Address Input
10	A2	Address Input
11	A1	Address Input
12	A0	Address Input
13	O0	Data Input
14	O1	Data Input
15	O2	Data Input
16	VSS	Ground
17	O3	Data Input
18	O4	Data Input
19	O5	Data Input
20	O6	Data Input
21	O7	Data Input
22	CE’	Chip Enable
23	A10	Address Input
24	OE’	Output Enable/Program Supply
25	A11	Address Input
26	A9	Address Input
27	A8	Address Input
28	A13	Address Input
29	A14	Address Input
30	A17	Address Input
31	A18	Address Input
32	VCC	Positive Power Supply

27C080 Key Features

JEDEC Standard Packages
- 32-lead PLCC
- 32-lead 600-mil PDIP
- 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