MC68HC705JP7 Datasheet, PDF (109/242 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
Analog Subsystem
Introduction
PORTB
LOGIC
PB0
AN0
PB3/AN3/TCAP
V_DD
I_CHG
V_DD
I_DISCHG
INTERNAL
TEMPERATURE
DIODE
V_DD
CHARGE
CURRENT
CONTROL
LOGIC
CP2EN
+
COMP2
–
INV
2 TO 1 _TCAP
MUX
CHG
ATD1
ATD2
ISEN
CP2EN
ICEN
CP1EN
CPIE
$001D
ANALOG
INTERRUPT
V_REF
PORTB
LOGIC
PB1
AN1
PORTB
LOGIC
PB2
AN2
PB3
AN3
TCAP
PORTB
LOGIC
PB4
AN4
TCMP
PORTB
LOGIC
V_AOFF
V_SS
–+
MUX1
MUX2
MUX3
MUX4
V_SS
AV_SS = V_SS = V_AOFF
80 kΩ
80 kΩ
SAMPLE
CAP
CPF2
CPF1
CMP2
CMP1
VOFF
100 MV
OFFSET
CP1EN
$001E
OPT (COPR)
+
COMP1
–
V_REF ^INV
OLVL ^{PORT B}
CONTROL
LOGIC
HOLD
DHOLD
INV
V_REF
MUX4
MUX3
MUX2
COE1
MUX1
OPT (COPR)
$0003
MUX4
MUX3
MUX2
MUX1
DENOTES
INTERNAL
ANALOG V_SS
Figure 8-1. Analog Subsystem Block Diagram
MC68HC705JJ7 • MC68HC705JP7 — REV 4
MOTOROLA
Analog Subsystem
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Advance Information
109