P87LPC760BDH NXP Semiconductors, P87LPC760BDH Datasheet - Page 8

• Manufacturer Part Number: P87LPC760BDH
• Description: MCU 8-Bit 87LP 80C51 CISC 1KB EPROM 5V 14-Pin TSSOP Tube
• Manufacturer: NXP Semiconductors

Specifications of P87LPC760BDH

• Package: 14TSSOP
• Device Core: 80C51
• Family Name: 87LP
• Maximum Speed: 20 MHz
• Ram Size: 128 Byte
• Program Memory Size: 1 KB
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Program Memory Type: EPROM
• Number Of Programmable I/os: 12
• Interface Type: I2C/UART
• Operating Temperature: 0 to 70 °C
• Number Of Timers: 2

Philips Semiconductors
PIN DESCRIPTIONS
2002 Mar 07
P0.3–P0.6
P1.0–P1.3
P1.5, P1.7
P2.0–P2.1
V
V
Low power, low price, low pin count (14 pin)
microcontroller with 1 kbyte OTP
SS
DD
MNEMONIC
10, 12–14
PIN NO.
1–2
6–9
4, 5
14
13
12
10
11
9
8
7
6
2
5
4
3
TYPE
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
I
I
I
I
I
I
I
I
I
Port 0: Port 0 is an 4-bit I/O port with a user-configurable output type. Port 0 latches are
configured in the quasi-bidirectional mode and have either ones or zeros written to them
during reset, as determined by the PRHI bit in the UCFG1 configuration byte. The operation
of port 0 pins as inputs and outputs depends upon the port configuration selected. Each port
pin is configured independently. Refer to the section on I/O port configuration and the DC
Electrical Characteristics for details.
The Keyboard Interrupt feature operates with port 0 pins.
Port 0 also provides various special functions as described below.
Port 1: Port 1 is an 6-bit I/O port with a user-configurable output type, except for three pins
as noted below. Port 1 latches are configured in the quasi-bidirectional mode and have ei-
ther ones or zeros written to them during reset, as determined by the PRHI bit in the UCFG1
configuration byte. The operation of the configurable port 1 pins as inputs and outputs de-
pends upon the port configuration selected. Each of the configurable port pins are pro-
grammed independently. Refer to the section on I/O port configuration and the DC Electrical
Characteristics for details.
Port 1 also provides various special functions as described below.
Port 2: Port 2 is a 2-bit I/O port with a user-configurable output type. Port 2 latches are con-
figured in the quasi-bidirectional mode and have either ones or zeros written to them during
reset, as determined by the PRHI bit in the UCFG1 configuration byte. The operation of port
2 pins as inputs and outputs depends upon the port configuration selected. Each port pin is
configured independently. Refer to the section on I/O port configuration and the DC Electri-
cal Characteristics for details.
Port 2 also provides various special functions as described below.
Ground: 0 V reference.
Power Supply: This is the power supply voltage for normal operation as well as Idle and
Power Down modes.
P0.3
P0.4
P0.5
P0.6
P1.0
P1.1
P1.2
P1.3
P1.5
P2.0
P2.1
CIN1B
CIN1A
CMPREF
CMP1
TxD
RxD
T0
SCL
INT0
SDA
RST
X2
CLKOUT
X1
5
Comparator 1 positive input B.
Comparator 1 positive input A
Comparator reference (negative) input.
Comparator 1 output
Transmitter output for the serial port.
Receiver input for the serial port.
Timer/counter 0 external count input or overflow output.
I
P1.2 is open drain, in order to conform to I
External interrupt 0 input.
I
is open drain, in order to conform to I
External Reset input (if selected via EPROM configuration). A
low on this pin resets the microcontroller, causing I/O ports and
peripherals to take on their default states, and the processor
begins execution at address 0. When used as a port pin, P1.5 is
a Schmitt trigger input only.
Output from the oscillator amplifier (when a crystal oscillator
option is selected via the EPROM configuration).
CPU clock divided by 6 clock output when enabled via SFR bit
and in conjunction with internal RC oscillator or external clock
input.
Input to the oscillator circuit and internal clock generator circuits
(when selected via the EPROM configuration).
2
2
C serial clock input/output. When configured as an output,
C serial data input/output. When configured as an output, P1.3
NAME AND FUNCTION
2
C specifications.
P87LPC760
2
C specifications.
Preliminary data