P89LPC921 datasheet(1/45 Pages) PHILIPS

Part #	P89LPC921

Description	8-bit microcontrollers with two-clock 80C51 core 2 kB/4 kB/8 kB 3 V low-power Flash with 256-byte data RAM

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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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

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

page size, and single byte erase.

s 256-byte RAM data memory.

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

upon timer overﬂow or to become a PWM output.

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

s Two analog comparators with selectable inputs and reference source.

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

detection, automatic address detection and versatile interrupt capabilities.

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

s 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.

s 2.4 V to 3.6 V VDD operating range. I/O pins are 5 V tolerant (may be pulled up or

driven to 5.5 V).

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

options.

2.2 Additional features

s 20-pin TSSOP and DIP packages.

s 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.

Similar Part No. - P89LPC921

Manufacturer	Part #	Datasheet	Description
NXP Semiconductors	P89LPC9211	335Kb / 74P	8-bit microcontroller with accelerated two-clock 80C51 core 2 kB/4 kB/8 kB 3 V byte-erasable flash with 8-bit ADC Rev. 01-16 April 2009
	P89LPC9211	1Mb / 75P	8-bit microcontroller with accelerated two-clock 80C51 core 2 kB/4 kB/8 kB 3 V byte-erasable flash with 8-bit ADC Rev. 2-1 December 2010
	P89LPC9211FDH	335Kb / 74P	8-bit microcontroller with accelerated two-clock 80C51 core 2 kB/4 kB/8 kB 3 V byte-erasable flash with 8-bit ADC Rev. 01-16 April 2009
	P89LPC9211FDH	1Mb / 75P	8-bit microcontroller with accelerated two-clock 80C51 core 2 kB/4 kB/8 kB 3 V byte-erasable flash with 8-bit ADC Rev. 2-1 December 2010
	P89LPC921FDH	238Kb / 46P	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. 08 - 15 December 2004

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Similar Description - P89LPC921

Manufacturer	Part #	Datasheet	Description
NXP Semiconductors	P89LPC920	238Kb / 46P	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. 08 - 15 December 2004
	P89LPC930	260Kb / 55P	8-bit microcontrollers with two-clock 80C51 core 4 kB/8 kB 3 V Flash with 256-byte data RAM Rev. 05-15 December 2004
	P89LPC930	277Kb / 55P	8-bit microcontrollers with two-clock 80C51 core 4 kB/8 kB 3 V Flash with 256-byte data RAM Rev. 05 - 15 December 2004
	P89LPC9201	335Kb / 74P	8-bit microcontroller with accelerated two-clock 80C51 core 2 kB/4 kB/8 kB 3 V byte-erasable flash with 8-bit ADC Rev. 01-16 April 2009
	P89LPC92X1	1Mb / 75P	8-bit microcontroller with accelerated two-clock 80C51 core 2 kB/4 kB/8 kB 3 V byte-erasable flash with 8-bit ADC Rev. 2-1 December 2010
	P89LPC912	326Kb / 66P	8-bit microcontrollers with two-clock 80C51 core, 1 kB 3 V flash with 128-byte RAM Rev. 05-28 September 2007
	P89LPC9301	312Kb / 65P	8-bit microcontroller with accelerated two-clock 80C51 core 4 kB/8 kB 3 V byte-erasable flash Rev. 01-9 April 2009
	P89LPC906	243Kb / 51P	8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM Rev. 05-17 December 2004
	P89LPC901	1Mb / 55P	8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM Rev. 04-21 November 2003
	P89LPC912	314Kb / 63P	8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM Rev. 03-17 December 2004

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