Sensory Science 7405 User Manual
Page 7
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
A
A
B
B
C
C
D
D
ZERO REGISTER
MEM ADRS REG
STATE
REGISTER
ADDRESS
BOARD
SELECT
JUMPERS
INSTALL
FOR
CURRENT
OUTPUT
0500067S
B
MODEL 7405 STD 8-CHANNEL DAC
SENSORAY COMPANY, INCORPORATED
B
1
2
Monday, December 16, 1996
Title
Size
Document Number
Rev
Date:
Sheet
of
SHEET 2
500067S2
+12V
-12V
DGND
D[0..11]
AGND
SAMPLE*
A[1..3]
BUSY
S0*
S0
S1
S2
BUSY*
S3
CLK
SRST*
WSTATE*
IOEXP
AB1
GZERO*
AB2
AB3
AB4
AB5
AB6
GLO*
AB7
IORQ*
CLK
SRST*
DB0
BUSY
DB1
S0
WSTATE*
DB2
S1
SAMPLE*
DB3
BDSEL*
S2
GZERO*
DB4
S3
MARCNT
DB5
SYSRD*
ARST*
WMAR*
DB6
SYSWR*
WLO*
WRAM*
DB7
AB0
GSTAT*
GLO*
LBUSY*
GHI*
AB0
LBUSY
AB1
WHI*
AB2
AB3
S3
AB4
AB5
AB6
ARST*
AB7
GRAM*
S3
A0
CLK
DB7
BUSY*
XA0
A1
DB6
LBUSY*
XA1
A2
XA2
A3
GSTAT*
T0
T1
T0
CLK
T2
T1
WMAR*
T3
T2
DB0
D0
SRST*
T4
T3
DB1
D1
T5
T4
DB2
D2
T6
T5
DB3
D3
T7
T6
DB4
XA0
T7
DB5
XA1
A1
DB6
XA2
A2
DB7
A3
SAMPLE*
A0
T0
GHI*
T1
WHI*
T2
T3
T4
T5
A0
D0
T6
DB0
D0
A1
D1
T7
DB1
D1
A2
D2
DB2
D2
A3
D3
DB3
D3
D4
D0
DB4
D4
D5
D1
DB5
D5
D6
D2
DB6
D6
D7
D3
DB7
D7
D4
D0
D8
D5
D1
D9
GLO*
D6
D2
D10
WLO*
D7
D3
D11
GRAM*
A0
WRAM*
A[0..3]
T[0..7]
A[1..3]
D[0..11]
RCO
+5V
+5V
+5V
+5V
+5V
+12V
-12V
+5V
+12V
-12V
+5V
+12V
-12V
U26
74HCT374
3
4
7
8
13
14
17
18
1
11
2
5
6
9
12
15
16
19
D0
D1
D2
D3
D4
D5
D6
D7
OC
CLK
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
U23
74HCT374
3
4
7
8
13
14
17
18
1
11
2
5
6
9
12
15
16
19
D0
D1
D2
D3
D4
D5
D6
D7
OC
CLK
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
U17
74HCT138
1
2
3
6
4
5
15
14
13
12
11
10
9
7
A
B
C
G1
G2A
G2B
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
U13
74HC368
2
4
6
10
12
14
1
15
3
5
7
9
11
13
1A1
1A2
1A3
1A4
2A1
2A2
1G
2G
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
U27
74HCT688
2
4
6
8
11
13
15
17
3
5
7
9
12
14
16
18
1
19
P0
P1
P2
P3
P4
P5
P6
P7
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
G
P=Q
U21
8416
8
7
6
5
4
3
2
1
23
22
19
18
20
21
9
10
11
13
14
15
16
17
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
CE
OE
WE
D0
D1
D2
D3
D4
D5
D6
D7
U16
74HC174
3
4
6
11
13
14
9
1
2
5
7
10
12
15
D1
D2
D3
D4
D5
D6
CLK
CLR
Q1
Q2
Q3
Q4
Q5
Q6
U19
74HC151
4
3
2
1
15
14
13
12
11
10
9
7
6
5
D0
D1
D2
D3
D4
D5
D6
D7
A
B
C
G
W
Y
U22
74HC163
3
4
5
6
7
10
2
9
1
14
13
12
11
15
A
B
C
D
ENP
ENT
CLK
LOAD
CLR
QA
QB
QC
QD
RCO
U24
74HC163
3
4
5
6
7
10
2
9
1
14
13
12
11
15
A
B
C
D
ENP
ENT
CLK
LOAD
CLR
QA
QB
QC
QD
RCO
P2
*
1
2
3
4
5
13
11
9
7
14
12
10
8
29
27
25
23
21
19
17
15
30
28
26
24
22
20
18
16
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
6
+5V
+5V
DGND
DGND
VBB1
D0
D1
D2
D3
D4
D5
D6
D7
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
WR
RD
IORQ
MEMRQ
IOEXP
MEMEX
RFSH
MSYNC
STAT1
STAT0
BUSAK
BUSRQ
INTAK
INTRQ
WAITRQ
NMIRQ
SYSRESET
PBRESET
CLOCK
CNTRL
PCO
PCI
AGND
AGND
+12V
-12V
VBB2
U20
74HC244
2
4
6
8
11
13
15
17
1
19
18
16
14
12
9
7
5
3
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
1G
2G
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
RN1
10K-SIP
1
2
3
4
5
6
7
8
9
10
C55
C59
C50
C51
C56
C60
C53
C48
D1
D2
D3
D4
D5
D6
D7
D8
RN2
10K-SIP
1
2
3
4
5
6
7
8
9
10
C63
10uF,20V
C6
C25
C26
C7
C27
C8
C28
C42
C43
C64
10uF,20V
C5
0.1uF
C14
C33
C34
C15
C35
C16
C36
C49
C41
C13
0.1uF
C62
10uF,20V
U28
22V10
1
2
3
4
5
6
7
8
9
10
11
13
23
22
21
20
19
18
17
16
15
14
I1/CLK
I2
I3
I4
I5
I6
I7
I8
I9
I10
I11
I12
O1
O2
O3
O4
O5
O6
O7
O8
O9
O10
E8
E1
E2
E3
E4
E5
E6
E7
U25B
74HC00
4
5
6
U25A
74HC00
1
2
3
U25D
74HC00
12
13
11
U25C
74HC00
9
10
8
R77
1K
C47
3300pF
1
0400067
RevB
C52
C54
C57
C58
C61
1
EJECTOR