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UX-258TH
FO-475TH
8 – 4
[2] IC signal name
CONTROL PWB UNIT
IC13: VHiULN2003AN/ (ULN2003A)
IC3: VHiMC74HCU04F(MC74HCU04F)
IC7: VHiW24257S7LL (W24257S-70LLT)
IC6, 10: VHiHCF4053M1T (HCF4053B)
16 15 14 13 12 11 10 9
12345678
1B 2B 3B 4B 5B 6B 7B E
1C 2C 3C 4C 5C 6C 7C COM
Signal
A0~A12
CE1/CE2
WE
OE
I/O1~I/O8
VCC
GND
N.C.
Address input
Chip enable
Write enable
Write enable
Data I/O
Power source
Ground
No connection
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ1
DQ2
DQ3
GND
28
27
26
25
24
23
22
21
20
19
18
17
DQ5
DQ6
DQ7
DQ8
S1
A10
S2
A11
A9
A8
A13
W
VCC
(TOP VIEW)
16
15 DQ4
Pin name
6
11
10
9
12
13
2
1
Inhibit
Controls
14
15
Common
Out/In
5
Switches
In/Out
4
3
A
B
C
X0
X1
Y0
Y1
Z0
Z1
X
Y
Z
VDD: Pin 16
VSS: Pin 8
VEE: Pin7
14 13 12 11 10 9
123456
1A 1Y 2A 2Y 3A 3Y
VCC 6A 6Y 5A 5Y 4A
8
4Y
7
GND