P87LPC761BN NXP Semiconductors, P87LPC761BN Datasheet - Page 13

• Manufacturer Part Number: P87LPC761BN
• Description: IC, MCU 8BIT 80C51 2K OTP, DIP16
• Manufacturer: NXP Semiconductors

Specifications of P87LPC761BN

• Controller Family/series: (8051) 8052
• Core Size: 8bit
• No. Of I/o's: 14
• Program Memory Size: 2KB
• Ram Memory Size: 128Byte
• Cpu Speed: 20MHz
• Oscillator Type: External, Internal
• No. Of Timers: 2
• Digital: RoHS Compliant
• Package: 16PDIP
• Device Core: 80C51
• Family Name: 87LP
• Maximum Speed: 20 MHz
• Ram Size: 128 Byte
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Program Memory Type: EPROM
• Number Of Programmable I/os: 14
• Interface Type: I2C/UART
• Operating Temperature: 0 to 70 °C
• Number Of Timers: 2

1. Bit CP2 must be set to 1 to enable CIN2B.
Philips Semiconductors
2002 Mar 07
Low power, low price, low pin count (16 pin)
microcontroller with 2 kbyte OTP
(P0.5) CMPREF
(P0.4) CIN1A
(P0.3) CIN1B
(P0.1) CIN2B
CMPREF
CMPREF
Vref (1.23V)
V
ref
CIN1A
CIN1A
CINnB
CINnB
(1.23V)
CP1, CN1, OE1 = 0 0 0
CP1, CN1, OE1 = 0 1 0
CPn, CNn, OEn = 1 0 0
CPn, CNn, OEn = 1 1 0
V
ref
+
+
+
+
–
–
–
–
Figure 3. Comparator Input and Output Connections
CP1
CN1
CN2
CP2
CO1
CO1
COn
COn
Figure 4. Comparator Configurations
1
COMPARATOR 1
COMPARATOR 2
+
+
–
–
10
CO1
CO2
CHANGE DETECT
CHANGE DETECT
CMPREF
CMPREF
V
V
ref
ref
CIN1A
CIN1A
CINnB
CINnB
OE1
OE2
(1.23V)
(1.23V)
CP1, CN1, OE1 = 0 0 1
CP1, CN1, OE1 = 0 1 1
CPn, CNn, OEn = 1 0 1
CPn, CNn, OEn = 1 1 1
CMF2
CMF1
+
+
+
+
–
–
–
–
CO1
CO1
COn
COn
CMP1 (P0.6)
CMP2 (P0.0)
INTERRUPT
P87LPC761
INTERRUPT
SU01567
CMP1
CMP1
CMPn
CMPn
SU01568
Preliminary data