27C1024 64Kx16 120ns CMOS EPROM

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The M27C1024 is a 1 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 data or program storage and is organized as 65,536 words of 16 bits. The FDIP40W (window ceramic frit-seal package) has a transparent lid that allows 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 M27C1024 is offered in PDIP40, PLCC44, and TSOP40 (10 x 14mm) packages.

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27C1024 Pinout

27C1024 Pin Configuration

Pin Number	Pin Name	Description
1	VPP	Programming Supply
2	E’	Enable Pin
3	Q15	Data Output
4	Q14	Data Output
5	Q13	Data Output
6	Q12	Data Output
7	Q11	Data Output
8	Q10	Data Output
9	Q9	Data Output
10	Q8	Data Output
11	VSS	Ground Pin
12	Q7	Data Output
13	Q6	Data Output
14	Q5	Data Output
15	Q4	Data Output
16	Q3	Data Output
17	Q2	Data Output
18	Q1	Data Output
19	Q0	Data Output
20	G’	Output Enable
21	A0	Data Input
22	A1	Chip Enable
23	A2	Address Input
24	A3	Output Enable
25	A4	Address Input
26	A5	Address Input
27	A6	Address Input
28	A7	Address Input
29	A8	Address Input
30	VSS	Ground Pin
31	A9	Address Input
32	A10	Address Input
33	A11	Address Input
34	A12	Address Input
35	A13	Address Input
36	A14	Address Input
37	A15	Address Input
38	NC	No Connection
39	P’	Programming Pin
40	Vcc	Positive Power Supply