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P87LPC768FD

更新时间： 2024-10-26 21:54:03
品牌 Logo 应用领域
恩智浦 - NXP 光电二极管微控制器可编程只读存储器
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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中文翻译

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P87LPC768FD 数据手册

 浏览型号P87LPC768FD的Datasheet PDF文件第2页 
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  
•
•
2
— 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  
2
2
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  
–40 to +85  
12

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P87LPC768FD 替代型号

型号 品牌 替代类型 描述 数据表
P87LPC768BD NXP

功能相似

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