P87LPC768

更新时间： 2024-10-26 22:00:43

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
2页	97K
描述
Low Power, Low System Cost 80C51 MCU with ADC and PWM

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P87LPC768 数据手册

Low Power, Low System Cost

80C51 MCU with ADC and PW M

P87LPC768

As a member of the 51LPC microcontroller family, the 87LPC768

offers an 8-bit ADC with four multiplexed channels and an 8-bit

Pulse Width Modulator (PWM.) Further, the device provides 4K

of OTP code memory and 128 bytes of data SRAM, making it

suitable for high-level programming. The code memory is In-System

Programmable (ISP) through a serial interface. Other embedded

features that reduce the need for external components are brownout

detection, power-on reset and an on-chip RC oscillator that is very

stable over temperature and voltage.

The MCU core is fully compatible with the industry-standard C51

core, but features a 2X speed mode, where the CPU clock is divided

by 6 instead of 12. At 20 MHz, the 51LPC family devices provide

a throughput identical to a conventional C51 running at 40 MHz,

thus minimizing EMI and power consumption. The 87LPC768 is

manufactured in Philips Semiconductor’s low-power CMOS tech-

nology and is well suited for use in battery powered applications.

At 32kHz, the device consumes only 16µA and the operating volt-

age ranges from 2.7 – 6.0V (3.0 – 6.0V for analog peripherals). A

fixed-frequency oscillator running at 6 MHz can be used to clock

the device in applications that do not require the high accuracy of

a crystal. Regardless of the clock source used, the user can reduce

operating frequency down to as much 1/512 of the source frequen-

cy, allowing the user to optimize performance and power consump-

tion on-the-fly. Use of the on-chip power-on reset and oscillator

makes up to 18 I/O pins available to the user, leaving only two

non-I/O pins for connection to power and ground.

The P87LPC768 is available in 20-pin SOIC and PDIP packages

Key Features

•

4-channel Pulse Width Modulator (PWM) generator

— Configurable resolution 1 – 10 bits

4-channel, 8-bit Analog-to-Digital Converter

— 9.3 microseconds conversion time at 20 MHz

— 100% accelerated C51 CPU core runs at 6 clocks

per instruction

•

Because the P87LPC768 combines an embedded ADC and PWM,

it is especially useful in applications that include dynamic position-

ing, speed and temperature control. The PWM provides very

high flexibility since the output resolution can be configured to

any number of bits up to 10.

•

20 MHz maximum operating frequency 4.5 – 6.0V and

10 MHz maximum operating frequency 2.7 – 6.0V

Configurable brownout reset detector

On-chip serial communications interfaces

— UART

•

— I C

The device comes with extensive serial communication capabilities.

On-chip UART provides serial communications for RS-232 and

•

Five I/O pin modes, individually selectable for each pin

— Quasi bi-directional

— Push-pull output

— Open drain output

— Input

RS-485. The I C interface provides interface to other I C units

such as serial EEPROMs, other MCUs and a variety of peripheral

devices. These communications interfaced in combination with

the analog capabilities makes the 87LPC768 ideal for a variety of

sensor applications.

— Schmitt trigger input

Up to 18 pins usable for general purpose I/O

O rdering Inform ation

Part Number

Temperature (C)

0 to +70

Package Description

Operating Frequency

All devices operate at

20MHz @ 4.5 to 6.0V

10MHz @ 2.7 to 6.0V

P87LPC768BN

P87LPC768BD

P87LPC768FN

P87LPC768FD

Plastic Dual In-Line [PDIP20]

Plastic Small Outline [SOIC20]

Plastic Dual In-Line [PDIP20]

Plastic Small Outline [SOIC20]

0 to +70

–40 to +85

中文翻译

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与P87LPC768相关器件

型号	品牌	获取价格	描述	数据表
P87LPC768BD	NXP	获取价格	Low Power, Low System Cost 80C51 MCU with ADC and PWM
P87LPC768BD,529	NXP	获取价格	P87LPC768 - Low power, low price, low pin count (20 pin) microcontroller with 4 kB OTP 8-b
P87LPC768BN	NXP	获取价格	Low Power, Low System Cost 80C51 MCU with ADC and PWM
P87LPC768FD	NXP	获取价格	Low Power, Low System Cost 80C51 MCU with ADC and PWM
P87LPC768FD,112	NXP	获取价格	P87LPC768 - Low power, low price, low pin count (20 pin) microcontroller with 4 kB OTP 8-b
P87LPC768FD,512	NXP	获取价格	P87LPC768 - Low power, low price, low pin count (20 pin) microcontroller with 4 kB OTP 8-b
P87LPC768FD,529	NXP	获取价格	P87LPC768 - Low power, low price, low pin count (20 pin) microcontroller with 4 kB OTP 8-b
P87LPC768FN	NXP	获取价格	Low power, low price, low pin count 20 pin microcontroller with 4 kB OTP 8-bit A/D,and Pul
P87LPC769	NXP	获取价格	Low power, low price, low pin count 20 pin microcontroller with 4 kB OTP 8-bit A/D, and DA
P87LPC769FD	PHILIPS	获取价格	Microcontroller, 8-Bit, UVPROM, 8051 CPU, 10MHz, CMOS, PDSO20

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