AN1740 Freescale Semiconductor / Motorola, AN1740 Datasheet - Page 13

• Manufacturer Part Number: AN1740
• Description: Applications Using the Analog Subsystem on MC68HC05JJ/JP Series Microcontrollers
• Manufacturer: Freescale Semiconductor / Motorola

AN1740
MOTOROLA
DIODE = (HOLD) • (DHOLD)
CAN ALSO USE
PB2, PB3, OR PB4
WITH REQUIRED MUX
V
REF
V
V
X
Figure 5. Additional Comparator 2 Configurations
X
PB0
PB1
PB0
V
REF
V
Freescale Semiconductor, Inc.
V
X
Y
For More Information On This Product,
MUX1
60 k
PB0
PB2
PB3
V
DD
Go to: www.freescale.com
60 k
MUX2
SAMPLE
SAMPLE
SAMPLE
(10 PF)
(10 PF)
(10 PF)
CAP
DIODE
CAP
CAP
DHOLD
HOLD
+
+
+
–
–
–
+
–
COMP2
COMP2
COMP2
COMP1
CP2EN
CP2EN
CP2EN
CP1EN
INV
INV
INV
INV
V
V
V
V
DD
DD
DD
DD
D
C
D
C
D
C
CPFR2
CPFR2
CPFR2
D
C
CPFR1
R
R
R
R
Q
Q
Q
Q
CPF2
CPF2
CPF2
CMP2
CMP2
CMP2
CPF1
CMP1
Voltage Comparators
Application Note
CASE 6
CASE 8
CASE 7
13