P89LPC931FDH NXP Semiconductors, P89LPC931FDH Datasheet - Page 6

• Manufacturer Part Number: P89LPC931FDH
• Description: MCU 8-Bit 89LP 80C51 CISC 8KB Flash 2.5V/3.3V 28-Pin TSSOP Tube
• Manufacturer: NXP Semiconductors

Specifications of P89LPC931FDH

• Package: 28TSSOP
• Device Core: 80C51
• Family Name: 89LP
• Maximum Speed: 18 MHz
• Ram Size: 256 Byte
• Program Memory Size: 8 KB
• Operating Supply Voltage: 2.5|3.3 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 26
• Interface Type: I2C/SPI/UART
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 2

Philips Semiconductors
Table 3:
9397 750 14472
Product data
Symbol
P0.0 - P0.7
Pin description
Pin
3, 26, 25,
24, 23, 22,
20, 19
3
26
25
24
23
22
20
19
5.2 Pin description
Type
I/O
I/O
O
I
I/O
I
I
I/O
I
I
I/O
I
I
I/O
I
I
I/O
I
I
I/O
O
I
I/O
I/O
I
Description
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
8.11.1 “Port configurations”
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 — Port 0 bit 0.
CMP2 — Comparator 2 output.
KBI0 — Keyboard input 0.
P0.1 — Port 0 bit 1.
CIN2B — Comparator 2 positive input B.
KBI1 — Keyboard input 1.
P0.2 — Port 0 bit 2.
CIN2A — Comparator 2 positive input A.
KBI2 — Keyboard input 2.
P0.3 — Port 0 bit 3.
CIN1B — Comparator 1 positive input B.
KBI3 — Keyboard input 3.
P0.4 — Port 0 bit 4.
CIN1A — Comparator 1 positive input A.
KBI4 — Keyboard input 4.
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.
Rev. 05 — 15 December 2004
8-bit microcontrollers with two-clock 80C51 core
and
Table 7 “DC electrical characteristics”
P89LPC930/931
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
for details.
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