P89LPC9381 NXP Semiconductors, P89LPC9381 Datasheet - Page 7

• Manufacturer Part Number: P89LPC9381
• Description: The P89LPC9381 is a single-chip microcontroller, available in low-cost packages, basedon a high performance processor architecture that executes instructions in two to fourclocks, six times the rate of standard 80C51 devices
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 3.
P89LPC9381_1
Product data sheet
Symbol
P0[2]/CIN2A/
KBI2/AD01
P0[3]/CIN1B/
KBI3/AD02
P0[4]/CIN1A/
KBI4/AD03
P0[5]/CMPREF/
KBI5
P0[6]/CMP1/
KBI6
P0[7]/T1/KBI7
P1[7:0]
P1[0]/TXD
P1[1]/RXD
P1[2]/T0/SCL
P1[3]/INT0/SDA
P1[4]/INT1
Pin description
Pin
25
24
23
22
20
19
18
17
12
11
10
…continued
Type Description
I/O
I
I
I
I/O
I
I
I
I/O
I
I
I
I/O
I
I
I/O
O
I
I/O
I/O
I
I/O, I
[1]
I/O
O
I/O
I
I/O
I/O
I/O
I/O
I
I/O
I
I
P0[2] — Port 0 bit 2.
CIN2A — Comparator 2 positive input A.
KBI2 — Keyboard input 2.
AD01 — ADC0 channel 1 analog input.
P0[3] — Port 0 bit 3.
CIN1B — Comparator 1 positive input B.
KBI3 — Keyboard input 3.
AD02 — ADC0 channel 2 analog input.
P0[4] — Port 0 bit 4.
CIN1A — Comparator 1 positive input A.
KBI4 — Keyboard input 4.
AD03 — ADC0 channel 3 analog input.
P0[5] — Port 0 bit 5.
CMPREF — Comparator reference (negative) input.
KBI5 — Keyboard input 5.
P0[6] — Port 0 bit 6.
CMP1 — Comparator 1 output.
KBI6 — Keyboard input 6.
P0[7] — Port 0 bit 7.
T1 — Timer/counter 1 external count input or overflow output.
KBI7 — Keyboard input 7.
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”
details. P1[2] to P1[3] are open-drain when used as outputs. P1[5] is input only.
All pins have Schmitt triggered inputs.
Port 1 also provides various special functions as described below:
P1[0] — Port 1 bit 0.
TXD — Transmitter output for the serial port.
P1[1] — Port 1 bit 1.
RXD — Receiver input for the serial port.
P1[2] — Port 1 bit 2 (open-drain when used as output).
T0 — Timer/counter 0 external count input or overflow output (open-drain when
used as output).
SCL — I
P1[3] — Port 1 bit 3 (open-drain when used as output).
INT0 — External interrupt 0 input.
SDA — I
P1[4] — Port 1 bit 4.
INT1 — External interrupt 1 input.
Rev. 01 — 8 September 2006
2
2
C-bus serial clock input/output.
C-bus serial data input/output.
and
8-bit microcontroller with 10-bit ADC
Table 10 “Static characteristics”
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
P89LPC9381
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