P89LPC932A1 データシートの表示（PDF） - NXP Semiconductors.

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P89LPC932A1

8-bit microcontroller with accelerated two-clock 80C51 core 8 kB 3 V byte-erasable flash with 512-byte data EEPROM

NXP Semiconductors. 

NXP Semiconductors

P89LPC932A1

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

Table 2. Pin description …continued

Symbol

Pin

Type Description

TSSOP28, HVQFN28

PLCC28,

DIP28

P0.4/ CIN1A/ 23

19

I/O P0.4 — Port 0 bit 4.

KBI4

I

CIN1A — Comparator 1 positive input A.

I

KBI4 — Keyboard input 4.

P0.5/

22

18

I/O P0.5 — Port 0 bit 5.

CMPREF/

KBI5

I

CMPREF — Comparator reference (negative) input.

I

KBI5 — Keyboard input 5.

P0.6/CMP1/ 20

16

I/O P0.6 — Port 0 bit 6.

KBI6

O CMP1 — Comparator 1 output.

I

KBI6 — Keyboard input 6.

P0.7/T1/KBI7 19

15

I/O P0.7 — Port 0 bit 7.

I/O T1 — Timer/counter 1 external count input or overflow output.

I

KBI7 — Keyboard input 7.

P1.0 to P1.7

I/O, I

[1]

Port 1: Port 1 is an 8-bit I/O port with a user-configurable output type,

except for three pins as noted below. During reset Port 1 latches are

configured in the input only mode with the internal pull-up disabled. The

operation of the configurable Port 1 pins as inputs and outputs depends

upon the port configuration selected. Each of the configurable port pins

are programmed independently. Refer to Section 7.13.1 “Port

configurations” and Table 8 “Static characteristics” for details. P1.2 and

P1.3 are open drain when used as outputs. P1.5 is input only.

All pins have Schmitt trigger inputs.

Port 1 also provides various special functions as described below:

P1.0/TXD

18

14

I/O P1.0 — Port 1 bit 0.

O TXD — Transmitter output for the serial port.

P1.1/RXD

17

13

I/O P1.1 — Port 1 bit 1.

I

RXD — Receiver input for the serial port.

P1.2/T0/SCL 12

8

I/O P1.2 — Port 1 bit 2 (open-drain when used as output).

I/O T0 — Timer/counter 0 external count input or overflow output (open-drain

when used as output).

I/O SCL — I2C serial clock input/output.

P1.3/INT0/ 11

7

SDA

I/O P1.3 — Port 1 bit 3 (open-drain when used as output).

I

INT0 — External interrupt 0 input.

I/O SDA — I2C serial data input/output.

P1.4/INT1

10

6

I

P1.4 — Port 1 bit 4.

I

INT1 — External interrupt 1 input.

P89LPC932A1_3

Product data sheet

Rev. 03 — 12 March 2007

© NXP B.V. 2007. All rights reserved.

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