P87LPC768 NXP Semiconductors, P87LPC768 Datasheet - Page 16

• Manufacturer Part Number: P87LPC768
• Description: The P87LPC768 is a 20-pin single-chip microcontroller designed forlow pin count applications demanding high-integration, low costsolutions over a wide range of performance requirements
• Manufacturer: NXP Semiconductors

Philips Semiconductors
2002 Mar 12
Low power, low price, low pin count (20 pin) microcontroller
with 4 kB OTP 8-bit A/D, Pulse Width Modulator
(P0.5) CMPREF
(P0.4) CIN1A
(P0.3) CIN1B
(P0.2) CIN2A
(P0.1) CIN2B
CMPREF
CMPREF
Vref (1.23V)
V
ref
CINnA
CINnA
CINnB
CINnB
(1.23V)
CPn, CNn, OEn = 0 0 0
CPn, CNn, OEn = 0 1 0
CPn, CNn, OEn = 1 0 0
CPn, CNn, OEn = 1 1 0
V
ref
+
+
+
+
–
–
–
–
Figure 5. Comparator Input and Output Connections
CP1
CN1
CP2
CN2
COn
COn
COn
COn
Figure 6. Comparator Configurations
COMPARATOR 1
COMPARATOR 2
+
+
–
–
14
CO1
CO2
CHANGE DETECT
CHANGE DETECT
CMPREF
CMPREF
V
V
ref
ref
CINnA
CINnA
CINnB
CINnB
OE1
OE2
(1.23V)
(1.23V)
CPn, CNn, OEn = 0 0 1
CPn, CNn, OEn = 0 1 1
CPn, CNn, OEn = 1 0 1
CPn, CNn, OEn = 1 1 1
CMF2
CMF1
+
+
+
+
–
–
–
–
COn
COn
COn
COn
CMP1 (P0.6)
CMP2 (P0.0)
INTERRUPT
P87LPC768
INTERRUPT
SU01153
CMPn
CMPn
CMPn
CMPn
SU01154
Preliminary data