27C020-100 2048K 100ns CMOS EPROM

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The M27C020 is a high-speed 2 Mbit EPROM offered in the two ranges UV (ultra violet erase) and OTP (one-time programmable). It is ideally suited for microprocessor systems requiring large programs and is organized as 262,144 by 8 bits. The FDIP32W (window ceramic frit-seal package) and LCCC32W (leadless chip carrier package) have transparent lids which allow the user to expose the chip to ultraviolet light to erase the bit pattern. A new pattern can then be written to the device by following the programming procedure. For applications where the content is programmed only one time and erasure is not required, the M27C020 is offered in PDIP32, PLCC32, and TSOP32 (8 x 20 mm) packages.

27C020 Pinout

27C020 Pin Configuration

Pin Number	Pin No	Description
1	VPP	Programming Supply
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	DQ0	Data Output
14	DQ1	Data Output
15	DQ2	Data Output
16	VSS	Ground
17	DQ3	Data Output
18	DQ4	Data Output
19	DQ5	Data Output
20	DQ6	Data Output
21	DQ7	Data Output
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	PGM	Programming Pin
32	VCC	Positive Power Supply