This is revision A of the EPROM 128K-5122K Plug and it is currently a work in progress.

EMDP1 EPROM 128K-512K Plug (Rev. A)

Table of Contents
Introduction
Schematic
Printed Circuit Board
Tables
Issues

Introduction

The EMDP1 EPROM 128K-512K plug is used to program the 27C010 (128K×8), 27C020 (256K×8), and 27C040 (512K×8).

Schematic

The schematic for this revision is shown below:

Printed Circuit Board

The following printed circuit board files exist:

plug128_512k_artwork.png: The artwork layer picture (PNG).
plug128_512k_back.png: The back layer picture (PNG).
plug128_512k_front.png: The front layer picture (PNG).
plug128_512k.gal: The artwork Gerber (RS274X) file.
plug128_512k.gbl: The back (solder side) Gerber (RS274X) file
plug128_512k.gtl: The front (component side) Gerber (RS274X) file.
plug128_512k.gml: The mask (both sides) Gerber RS274X) file.
plug128_512k.drl: The drill (Excellon) file.
plug128_512k.tol: The tool file that lists hole counts.

Tables

The table below shows were each of the BD signals winds up:

Pin EMDP1 Name Connected To Chip Name Chip Pin
1 SCL U1-SCL
2 GND Ground GND 16
3 SDA U1-SDA
4
5
6 +5V Vcc
7
8 BD0 ZIF40 Pin 25 O3 17
9 BD1 ZIF40 Pin 27 O5 19
10 BD2 ZIF40 Pin 26 O4 18
11 BD3 ZIF40 Pin 28 O6 20
12 BD4 Strobe A6-A11
13 BD5 ZIF40 Pin 15; U2-A4; U3-A10 O2, A6 (via U2-A4) 15, 6
14 BD6 ZIF40 Pin 30 CE 22
15 BD7 ZIF40 Pin 13; U2-A3; U3-A9 O0, A7 (via U2-A3), A4 (via U3-A9) 13, 5, 8
16 BD8 ZIF40 Pin 31 A10 23
17 BD9 ZIF40 Pin 29; U2-A5; U3-A11 O7, A5 (via U2-A5), A9 (via U3-A11) 21, 7, 26
18 BD10 Strobe U2-(A0-A5)
19 BD11 ZIF40 Pin 11; U2-A2; U3-A8 A1, A12 (via U2-A2), A8 (via U3-A8) 11, 4, 27
20 BD12 Plug BD12 O1 14
21 BD13 ZIF40 Pin 10; U2-A1; U3-A7 A2, A15 (via U2-A1), A17 (via U3-A7) 10, 3, 30
22 BD14 Plug BD14 OE 24
23 BD15 ZIF40 Pin 9; U2-A0; U3-A6 A3, A16 (via U2-A0), A0 (via U3-A6) 9, 2, 12
24 BD16 Plug BD16 A13 28
25 BD17 Program LED
26 BD18 Plug BD18 A14 29
27 BD19 ZIF40 Pin 39 PGM/A18 31
28 BD20 ZIF40 Pin 33 A11 25
29 BD21 Plug ID0
30 BD22 Plug ID1
31 BD23 Plug ID2
32 BD24 Plug ID3
33 BD25 Ground
34 BD26 Ground
35 BD27
36 VAR1 Plug V1 VPP 1
37 VAR2 ZIF40 Pin 40 VCC 32
38
39
40

Pin	EMDP1 Name	Connected To	Chip Name	Chip Pin
1	SCL	U1-SCL
2	GND	Ground	GND	16
3	SDA	U1-SDA
4
5
6	+5V	Vcc
7
8	BD0	ZIF40 Pin 25	O3	17
9	BD1	ZIF40 Pin 27	O5	19
10	BD2	ZIF40 Pin 26	O4	18
11	BD3	ZIF40 Pin 28	O6	20
12	BD4	Strobe A6-A11
13	BD5	ZIF40 Pin 15; U2-A4; U3-A10	O2, A6 (via U2-A4)	15, 6
14	BD6	ZIF40 Pin 30	CE	22
15	BD7	ZIF40 Pin 13; U2-A3; U3-A9	O0, A7 (via U2-A3), A4 (via U3-A9)	13, 5, 8
16	BD8	ZIF40 Pin 31	A10	23
17	BD9	ZIF40 Pin 29; U2-A5; U3-A11	O7, A5 (via U2-A5), A9 (via U3-A11)	21, 7, 26
18	BD10	Strobe U2-(A0-A5)
19	BD11	ZIF40 Pin 11; U2-A2; U3-A8	A1, A12 (via U2-A2), A8 (via U3-A8)	11, 4, 27
20	BD12	Plug BD12	O1	14
21	BD13	ZIF40 Pin 10; U2-A1; U3-A7	A2, A15 (via U2-A1), A17 (via U3-A7)	10, 3, 30
22	BD14	Plug BD14	OE	24
23	BD15	ZIF40 Pin 9; U2-A0; U3-A6	A3, A16 (via U2-A0), A0 (via U3-A6)	9, 2, 12
24	BD16	Plug BD16	A13	28
25	BD17	Program LED
26	BD18	Plug BD18	A14	29
27	BD19	ZIF40 Pin 39	PGM/A18	31
28	BD20	ZIF40 Pin 33	A11	25
29	BD21	Plug ID0
30	BD22	Plug ID1
31	BD23	Plug ID2
32	BD24	Plug ID3
33	BD25	Ground
34	BD26	Ground
35	BD27
36	VAR1	Plug V1	VPP	1
37	VAR2	ZIF40 Pin 40	VCC	32
38
39
40

The table below shows were each of the pins goes:

Pin Name BDx

1 VPP VAR1

2 A16 (via U2-A0) BD15

3 A15 (via U2-A1) BD13

4 A12 (via U2-A2) BD11

5 A7 (via U2-A3) BD7

6 A6 (via U2-A4) BD5

7 A5 (via U2-A5) BD9

8 A4 (via U3-A9) BD9

9 A3 BD15

10 A2 BD13

11 A1 BD11

12 A0 (via U3-A6) BD15

13 O0 BD7

14 O1 BD12

15 O2 BD5

16 GND GND

17 O3 BD0

18 O4 BD2

19 O5 BD1

20 O6 BD3

21 O7 BD9

22 CE BD6

23 A10 BD8

24 OE BD14

25 A11 BD20

26 A9 (via U3-A11) BD9

27 A8 (via U3-A8) BD11

28 A13 BD16

29 A14 BD18

30 A17 (via U3-A7) BD13

31 PGM/A18 BD19

32 VCC VAR2

Pin	Name	BDx
1	VPP	VAR1
2	A16 (via U2-A0)	BD15
3	A15 (via U2-A1)	BD13
4	A12 (via U2-A2)	BD11
5	A7 (via U2-A3)	BD7
6	A6 (via U2-A4)	BD5
7	A5 (via U2-A5)	BD9
8	A4 (via U3-A9)	BD9
9	A3	BD15
10	A2	BD13
11	A1	BD11
12	A0 (via U3-A6)	BD15
13	O0	BD7
14	O1	BD12
15	O2	BD5
16	GND	GND
17	O3	BD0
18	O4	BD2
19	O5	BD1
20	O6	BD3
21	O7	BD9
22	CE	BD6
23	A10	BD8
24	OE	BD14
25	A11	BD20
26	A9 (via U3-A11)	BD9
27	A8 (via U3-A8)	BD11
28	A13	BD16
29	A14	BD18
30	A17 (via U3-A7)	BD13
31	PGM/A18	BD19
32	VCC	VAR2

Issues