tc500a Microchip Technology Inc., tc500a Datasheet - Page 18

• Manufacturer Part Number: tc500a
• Description: Precision Analog Front Ends
• Manufacturer: Microchip Technology Inc.

TC500/A/510/514
FIGURE 9-4:
DS21428D-page 18
Mux Control Logic
Printer Port
Analog
0378
IBM
Port
Hex
®
Input 1
Input 2
Input 3
Input 4
TC514 To IBM
+
–
+
–
+
–
+
–
2
3
10
+5V
18
13
17
12
16
11
15
10
20
19
22
21
23
CH1+
CH1–
CH2+
CH2–
CH3+
CH3–
CH4+
CH4–
A0
A1
A
B
CMPTR
®
Compatible Printer Port.
V
25
DD
TC514
DGND
V
1
OUT
27
ACOM
C
V
CAP–
CAP+
C
V
REF
REF
C
BUF
REF
REF
C
INT
AZ
+
+
-
-
28
26
7
6
9
8
4
3
2
5
0.22 F
100 k
0.01 F
1 F
0.22 F
1 F
0.33 F
10 k
10 k
© 2006 Microchip Technology Inc.
MCP1525
10 k