P89LPC938FDH datasheet(7/68 Pages) PHILIPS

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9397 750 14051

Product data sheet

Rev. 01 — 25 February 2005

7 of 68

Philips Semiconductors

P89LPC938

8-bit microcontroller with 10-bit A/D converter

6.2 Pin description

Fig 5.

HVQFN28 pin conﬁguration (top view).

002aab073

P89LPC938FHN

Transparent top view

terminal 1

index area

P1.4/INT1

P1.3/INT0/SDA

P3.0/XTAL2/CLKOUT

P3.1/XTAL1

VSS

P1.5/RST

P1.6/OCB

P0.6/CMP1/KBI6

P0.7/T1/KBI7

P0.5/CMPREF/KBI5

VDD

P0.4/CIN1A/KBI4/AD03

P0.3/CIN1B/KBI3/AD02

P0.2/CIN2A/KBI2/AD01

Table 3:

Pin description

Symbol

Type Description

TSSOP28,

PLCC28

HVQFN28

P0.0 to P0.7

I/O

Port 0: Port 0 is an 8-bit I/O port with a user-conﬁgurable output type.

During reset Port 0 latches are conﬁgured in the input only mode with the

internal pull-up disabled. The operation of Port 0 pins as inputs and

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

conﬁgured independently. Refer to Section 7.13.1 “Port conﬁgurations”

and Table 10 “DC electrical characteristics” for details.

The Keypad Interrupt feature operates with Port 0 pins.

All pins have Schmitt triggered inputs.

Port 0 also provides various special functions as described below:

P0.0/CMP2/

KBI0/AD05

I/O

P0.0 — Port 0 bit 0.

CMP2 — Comparator 2 output.

KBI0 — Keyboard input 0.

AD05 — ADC0 channel 5 analog input.

P0.1/CIN2B/

KBI1/AD00

I/O

P0.1 — Port 0 bit 1.

CIN2B — Comparator 2 positive input B.

KBI1 — Keyboard input 1.

AD00 — ADC0 channel 0 analog input.

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