P89LPC935FHN datasheet(9/75 Pages) NXP

Part #	P89LPC935FHN

Description	8-bit microcontroller with accelerated two-clock 80C51 core 4 kB/8 kB/16 kB 3 V byte-erasable flash with 8-bit ADCs

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Manufacturer	NXP [NXP Semiconductors]

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P89LPC933_934_935_936_7

Product data sheet

Rev. 07 — 26 November 2008

9 of 75

NXP Semiconductors

P89LPC933/934/935/936

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

P2.0 to P2.7

I/O

Port 2: Port 2 is an 8-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 11 “Static characteristics” for details.

All pins have Schmitt trigger inputs.

Port 2 also provides various special functions as described below:

P2.0/ICB/

DAC0/AD03

1

25

I/O

P2.0 — Port 2 bit 0.

I

ICB — Input Capture B. (P89LPC935/936)

I

DAC0 — Digital-to-analog converter output.

I

AD03 — ADC0 channel 3 analog input. (P89LPC935/936)

P2.1/OCD/

AD02

2

26

I/O

P2.1 — Port 2 bit 1.

O

OCD — Output Compare D. (P89LPC935/936)

I

AD02 — ADC0 channel 2 analog input. (P89LPC935/936)

P2.2/MOSI

13

9

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

14

10

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

15

11

I/O

P2.4 — Port 2 bit 4.

I

SS — SPI Slave select.

P2.5/

SPICLK

16

12

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.

P2.6/OCA

27

23

I/O

P2.6 — Port 2 bit 6.

O

OCA — Output Compare A. (P89LPC935/936)

P2.7/ICA

28

24

I/O

P2.7 — Port 2 bit 7.

I

ICA — Input Capture A. (P89LPC935/936)

Table 4.

Pin description …continued

Symbol

Type

Description

TSSOP28,

PLCC28

HVQFN28

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