P89LPC921BDH

更新时间： 2024-10-27 13:12:11

品牌	Logo	应用领域
恩智浦 - NXP		微控制器
页数	文件大小	规格书
45页	801K
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P89LPC921BDH 数据手册

P89LPC920/921/922

8-bit microcontrollers with two-clock 80C51 core

2 kB/4 kB/8 kB 3 V low-power Flash with 256-byte data RAM

Rev. 06 — 21 November 2003

Product data

1. General description

The P89LPC920/921/922 are single-chip microcontrollers designed for applications

demanding high-integration, low cost solutions over a wide range of performance

requirements. The P89LPC920/921/922 is based on a high performance processor

architecture that executes instructions in two to four clocks, six times the rate of

standard 80C51 devices. Many system-level functions have been incorporated into

the P89LPC920/921/922 in order to reduce component count, board space, and

system cost.

2. Features

2.1 Principal features

■ 2 kB/4 kB/8 kB Flash code memory with 1 kB erasable sectors, 64-byte erasable

page size, and single byte erase.

■ 256-byte RAM data memory.

■ Two 16-bit counter/timers. Each timer may be conﬁgured to toggle a port output

upon timer overﬂow or to become a PWM output.

■ Real-Time clock that can also be used as a system timer.

■ Two analog comparators with selectable inputs and reference source.

■ Enhanced UART with fractional baud rate generator, break detect, framing error

detection, automatic address detection and versatile interrupt capabilities.

■ 400 kHz byte-wide I²C-bus communication port.

■ Conﬁgurable on-chip oscillator with frequency range and RC oscillator options

(selected by user programmed Flash conﬁguration bits). The RC oscillator option

allows operation without external oscillator components. Oscillator options

support frequencies from 20 kHz to the maximum operating frequency of 12 MHz.

The RC oscillator option is selectable and ﬁne tunable.

■ 2.4 V to 3.6 V V_DDoperating range. I/O pins are 5 V tolerant (may be pulled up or

driven to 5.5 V).

■ 15 I/O pins minimum. Up to 18 I/O pins while using on-chip oscillator and reset

options.

2.2 Additional features

■ 20-pin TSSOP and DIP packages.

■ A high performance 80C51 CPU provides instruction cycle times of 167 ns to

333 ns for all instructions except multiply and divide when executing at 12 MHz.

This is 6 times the performance of the standard 80C51 running at the same clock

frequency. A lower clock frequency for the same performance results in power

savings and reduced EMI.

12 3 4 5 6 7...45

中文翻译

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与P89LPC921BDH相关器件

型号	品牌	获取价格	描述	数据表
P89LPC921FDH	NXP	获取价格	8-bit microcontrollers with two-clock 80C51 core 2 kB/4 kB/8 kB 3 V low-power Flash with 2
P89LPC921FDH,129	NXP	获取价格	P89LPC920/921/922/9221 - 8-bit microcontrollers with two-clock 80C51 core 2 kB/4 kB/8 kB 3
P89LPC921FDH,512	NXP	获取价格	P89LPC920/921/922/9221 - 8-bit microcontrollers with two-clock 80C51 core 2 kB/4 kB/8 kB 3
P89LPC921FDH,518	NXP	获取价格	P89LPC920/921/922/9221 - 8-bit microcontrollers with two-clock 80C51 core 2 kB/4 kB/8 kB 3
P89LPC921FDH,529	NXP	获取价格	P89LPC920/921/922/9221 - 8-bit microcontrollers with two-clock 80C51 core 2 kB/4 kB/8 kB 3
P89LPC922	NXP	获取价格	8-bit microcontrollers with two-clock 80C51 core 2 kB/4 kB/8 kB 3 V low-power Flash with 2
P89LPC9221FDH	PHILIPS	获取价格	Microcontroller, 8-Bit, FLASH, 8051 CPU, 12MHz, CMOS, PDSO20,
P89LPC9221FDH,512	NXP	获取价格	IC 8-BIT, FLASH, 18 MHz, MICROCONTROLLER, PDSO20, 4.40 MM, PLASTIC, MO-153, SOT-360-1, TSS
P89LPC9221FDH,518	NXP	获取价格	IC,MICROCONTROLLER,8-BIT,8051 CPU,CMOS,TSSOP,20PIN,PLASTIC
P89LPC9221FN	NXP	获取价格	IC 8-BIT, FLASH, 18 MHz, MICROCONTROLLER, PDIP20, 0.300 INCH, PLASTIC, MS-001, SOT-146-1,

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