
Chapter 4. Additional Usage Notes
4-4
Ÿ
Comparator port
The P7.0 and P7.1 pins in the ML63512/514 can be used as input ports or comparators. The Dr.63514
implements the input port block with discrete components and the comparator block with an ML63514
itself. However, the discrete components (circuits) in the input block influence the characteristics of the
comparator. Therefore, be sure to disconnect the port circuit connection with the CMP switch when
using the comparator. This will achieve comparator characteristics identical to those of the
ML63512/514.
VDD
MAX901
operational amplifier
10k
Ω
30k
Ω
10k
Ω
MAX901
AD826
port hysteresis circuit
port7.0, 7.1
port (LCA)
150k
Ω
D
CLK
Q
analog input
(ML63514)
C
I/O I/O
+5V
VDD
+5V
CMP
ON
OFF
150k
Ω
HC4066
HC4066
HC4066
C
I/O I/O
C
I/O
I/O
+
-
+
-
+
-
+
-
+
-
Figure 4-3 P7.0, P7.1
n
Note 2
n
_____________________________________________________________________________________________________
Since the P7.0 and P7.1 pin input port circuits are not connected when the comparator
usage is set (i.e. when the CMP switch is on), they cannot be used as input ports in this
mode.
_____________________________________________________________________________________________________________________
n
Note 3
n
_____________________________________________________________________________________________________
Содержание Dr.63514
Страница 4: ...Table of Contents...
Страница 7: ...Preface...
Страница 15: ...Chapter 1 Overview...
Страница 22: ...Chapter 2 Functions...
Страница 69: ...Chapter 3 Setting Up and Starting Up...
Страница 76: ...Chapter 4 Additional Usage Notes...
Страница 88: ...Appendices...
Страница 94: ...Appendices A 7 black brown red orange yellow green blue purple Figure A 4 Probe cable layout...