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Manual EPROM Programmer

Manual EPROM Programmer

24 PIN

ZIF SOCKET

20

24

17

16

15

14

11

10

9

23

22

19

12

8

7

6

5

4

3

2

1

18

21

13

7

3

6

2

1

8

IC2

NE555

5

4

+

COM

IC1

7805

1

3

OUT

2

IN

+

+

230V AC

50HZ

X1

D1

1N4001

C1

1000μ

50V

ZD1

12.5V

1W

ZD2

9.1V

1W

ZD3

3.6V

1W

R1

33Ω

1W

J1

JUMPER

25V

R123

10Ω, 1W

12.5V

X1 = 230V AC PRIMARY

TO 15, 250mA

SECONDRY TRANSFORMER

R2

A7

A0

A8

A9

A10

D7

R10

R17

OFF

SW2

ON

S2

SLIDE

SWITCH

R25

4.7K

T1

BC547

OFF

R9

ON

R2-R17 = 10K

SW1-SW2 = 8-WAY DIP SWITCH

R18

1M

R19

2.2K

R20

10K

S1

TACTILE

SWITCH

C5

10μ

10V

R21

10K

D2

1N4001

C2

0.047μ

C3

0.01μ

LED1

D3

1N4001

R22

330Ω

R24

2.2K

SELECTION

2732

C4

100μ

10V

21V

D0

8

7

6

5

4

3

2

1

8

7

6

5

4

3

2

1

2716

PROGRAM

Manual EPROM Programmer

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publish time: 2020-09-28
Circuit Everyday

Programmable read-only memory (EPROM) is usually expensive. This is a low-cost circuit for programming binary data, put in 2716 and 2732 EPROM.

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