P89LPC954FBD44 datasheet(1/69 Pages) NXP

Part #	P89LPC954FBD44

Description	8-bit microcontroller with accelerated two-clock 80C51 core 8 kB/16 kB 3 V byte-erasable flash with 10-bit ADC

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Manufacturer	NXP [NXP Semiconductors]

Direct Link	http://www.nxp.com

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1.

General description

The P89LPC952/954 is a single-chip microcontroller, available in low cost packages,

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 P89LPC952/954 in order to reduce component count,

board space, and system cost.

2.

Features

2.1 Principal features

I 8 kB/16 kB byte-erasable ﬂash code memory organized into 1 kB sectors and 64-byte

pages. Single-byte erasing allows any byte(s) to be used as non-volatile data storage.

I 256-byte RAM data memory and a 256-byte auxiliary on-chip RAM.

I 8-input multiplexed 10-bit ADC with window comparator that can generate an interrupt

for in or out of range results. Two analog comparators with selectable inputs and

reference source.

I Two 16-bit counter/timers (each may be conﬁgured to toggle a port output upon timer

overﬂow or to become a PWM output) and a 23-bit system timer that can also be used

as a RTC.

I Two enhanced UARTs with a fractional baud rate generator, break detect, framing

error detection, and automatic address detection; 400 kHz byte-wide I2C-bus

communication port and SPI communication port.

I High-accuracy internal RC oscillator option, with clock doubler option, allows operation

without external oscillator components. The RC oscillator option is selectable and ﬁne

tunable. Fast switching between the internal RC oscillator and any oscillator source

provides optimal support of minimal power active mode with fast switching to

maximum performance.

I 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).

I 44-pin and 48-pin packages with 40 and 42 I/O pins minimum while using on-chip

oscillator and reset options.

I Port 5 has high current sourcing/sinking (20 mA) for all Port 5 pins. All other port pins

have high sinking capability (20 mA). A maximum limit is speciﬁed for the entire chip.

I Watchdog timer with separate on-chip oscillator, requiring no external components.

The watchdog prescaler is selectable from eight values.

P89LPC952/954

8-bit microcontroller with accelerated two-clock 80C51 core

8 kB/16 kB 3 V byte-erasable ﬂash with 10-bit ADC

Rev. 04 — 24 July 2008

Product data sheet

Similar Part No. - P89LPC954FBD44

Manufacturer	Part #	Datasheet	Description
NXP Semiconductors	P89LPC952	307Kb / 66P	8-bit microcontroller with accelerated two-clock 80C51 core 8 kB 3 V byte-erasable flash with 10-bit ADC Rev. 01-16 September 2005
	P89LPC952FA	307Kb / 66P	8-bit microcontroller with accelerated two-clock 80C51 core 8 kB 3 V byte-erasable flash with 10-bit ADC Rev. 01-16 September 2005
	P89LPC952FBD	307Kb / 66P	8-bit microcontroller with accelerated two-clock 80C51 core 8 kB 3 V byte-erasable flash with 10-bit ADC Rev. 01-16 September 2005

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Similar Description - P89LPC954FBD44

Manufacturer	Part #	Datasheet	Description
NXP Semiconductors	P89LPC952	307Kb / 66P	8-bit microcontroller with accelerated two-clock 80C51 core 8 kB 3 V byte-erasable flash with 10-bit ADC Rev. 01-16 September 2005
	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
	P89LPC9351	341Kb / 74P	8-bit microcontroller with accelerated two-clock 80C51 core 8 kB 3 V byte-erasable flash with 8-bit ADC Rev. 01-19 November 2008
	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
	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
	P89LPC9331	650Kb / 94P	8-bit microcontroller with accelerated two-clock 80C51 core, 4 kB/8 kB/16 kB 3 V byte-erasable Rev. 5-10 January 2011
	P89LPC933	366Kb / 75P	8-bit microcontroller with accelerated two-clock 80C51 core 4 kB/8 kB/16 kB 3 V byte-erasable flash with 8-bit ADCs Rev. 07-26 November 2008
	P89LPC9331	433Kb / 93P	8-bit microcontroller with accelerated two-clock 80C51 core, 4 kB/8 kB/16 kB 3 V byte-erasable flash with 8-bit ADCs Rev. 03-2 June 2009
	P89LPC933	372Kb / 75P	8-bit microcontroller with accelerated two-clock 80C51 core 4 kB/8 kB/16 kB 3 V byte-erasable Flash with 8-bit ADCs Rev. 06-20 June 2005
	P89LPC9151	1Mb / 91P	8-bit microcontroller with accelerated two-clock 80C51 core, 2 kB 3 V byte-erasable flash with 8-bit ADC Rev. 02-9 February 2010

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