P89LPC917 datasheet(14/75 Pages) NXP

Part #	P89LPC917

Description	8-bit microcontrollers with accelerated two-clock 80C51 core 2 kB 3 V flash with 8-bit A/D converter

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Manufacturer	NXP [NXP Semiconductors]

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P89LPC915_916_917_5

Product data sheet

Rev. 05 — 15 December 2009

14 of 75

NXP Semiconductors

P89LPC915/916/917

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

[1]

Input/output for P1.0 to P1.3. Input for P1.5.

I

RST — External Reset input during power-on or if selected via UCFG1.

When functioning as a reset input, a LOW on this pin resets the

microcontroller, causing I/O ports and peripherals to take on their

default states, and the processor begins execution at address 0. Also

used during a power-on sequence to force ISP mode. When using an

oscillator frequency above 12 MHz, the reset input function of P1.5

must be enabled. An external circuit is required to hold the device

in reset at power-up until VDD has reached its speciﬁed level. When

system power is removed VDD will fall below the minimum

speciﬁed operating voltage. When using an oscillator frequency

above 12 MHz, in some applications, an external brownout detect

circuit may be required to hold the device in reset when VDD falls

below the minimum speciﬁed operating voltage.

P2.2 to P2.5

Port 2: Port 2 is a 4-bit I/O port with a user-conﬁgurable output type.

During reset Port 2 latches are conﬁgured in the input only mode with

the internal pull-up disabled. The operation of Port 2 pins as inputs and

outputs depends upon the port conﬁguration selected. Each port pin is

conﬁgured independently. Refer to Section 8.13.1 “Port conﬁgurations”

and Table 15 “Static characteristics” for details.

All pins have Schmitt triggered inputs.

Port 2 also provides various special functions as described below:

P2.2/MOSI

6

I/O

P2.2 — Port 2 bit 2.

I/O

MOSI — SPI master out slave in. When conﬁgured as master, this pin is

output; when conﬁgured as slave, this pin is input.

P2.3/MISO

5

I/O

P2.3 — Port 2 bit 3.

I/O

MISO — When conﬁgured as master, this pin is input, when conﬁgured

as slave, this pin is output.

P2.4/SS

2

I/O

P2.4 — Port 2 bit 4.

I/O

SS — SPI Slave select.

P2.5/SPICLK

11

I/O

P2.5 — Port 2 bit 5.

I/O

SPICLK — SPI clock. When conﬁgured as master, this pin is output;

when conﬁgured as slave, this pin is input.

VSS

4I

Ground: 0 V reference.

VDD

12

I

Power supply: This is the power supply voltage for normal operation as

well as Idle and Power-down modes.

Table 5.

P89LPC916 pin description …continued

Symbol

Type Description

Similar Part No. - P89LPC917

Manufacturer	Part #	Datasheet	Description
NXP Semiconductors	P89LPC917	344Kb / 72P	8-bit microcontrollers with accelerated two-clock 80C51 core 2 kB 3 V Flash with 8-bit A/D converter Rev. 04-17 December 2004
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Manufacturer	Part #	Datasheet	Description
NXP Semiconductors	P89LPC915	344Kb / 72P	8-bit microcontrollers with accelerated two-clock 80C51 core 2 kB 3 V Flash with 8-bit A/D converter Rev. 04-17 December 2004
	P89LPC925FDH	233Kb / 49P	8-bit microcontrollers with accelerated two-clock 80C51 core 4 kB/8 kB 3 V low-power Flash with 8-bit A/D converter Rev. 03-15 December 2004
	P89LPC924_925	243Kb / 49P	8-bit microcontrollers with accelerated two-clock 80C51 core 4 kB/8 kB 3 V low-power Flash with 8-bit A/D converter Rev. 03-15 December 2004
	P89LPC904	190Kb / 41P	8-bit microcontrollers with two-clock accelerated 80C51 core 1 kB 3 V byte-erasable Flash with 8-bit A/D converter Rev. 02-25 June 2004
	P89LPC9107	257Kb / 58P	8-bit microcontrollers with two-clock accelerated 80C51 core 1 kB 3 V byte-erasable Flash with 8-bit A/D converter Rev. 02-11 April 2005
	P89LPC9102	291Kb / 61P	8-bit microcontrollers with two-clock accelerated 80C51 core 1 kB 3 V byte-erasable flash with 8-bit A/D converter Rev. 03-10 July 2007
	P89LPC938	318Kb / 68P	8-bit microcontroller with accelerated two-clock 80C51 core 8 kB 3 V byte-erasable Flash with 10-bit A/D converter Rev. 01-25 February 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
	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
	P89LPC933	337Kb / 71P	8-bit microcontroller with accelerated two-clock 80C51 core 4 kB/8 kB 3 V byte-erasable Flash with 8-bit A/D converters Rev. 06-20 June 2005

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