參數(shù)資料
型號(hào)： P89LPC914FDH
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： 8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM
中文描述： 8-BIT, FLASH, 12 MHz, MICROCONTROLLER, PDSO14
封裝： 4.4 MM, PLASTIC, MO-153, SOT-402-1, TSSOP-14
文件頁(yè)數(shù)： 10/63頁(yè)
文件大小： 314K
代理商： P89LPC914FDH
Philips Semiconductors
P89LPC912/913/914
8-bit microcontrollers with two-clock 80C51 core
Product data
Rev. 03 — 17 December 2004
10 of 63
9397 750 14468
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Table 4:
Symbol
P0.2,
P0.4 to P0.6
P89LPC913 pin description
Pin
Type
I/O
Description
Port 0:
Port 0 is a 4-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
9.11.1 “Port configurations”
and
Table 13 “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:
P0.2 —
Port 0 bit 2.
CIN2A —
Comparator 2 positive input A.
KBI2 —
Keyboard input 2.
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.
Port 1:
Port 1 is a 3-bit I/O port with a user-configurable output type, except for P1.5
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 9.11.1 “Port
configurations”
and
Table 13 “DC electrical characteristics”
for details. 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.
P1.5 —
Port 1 bit 5 (input only).
RST —
External Reset input during Power-on or if selected via UCFG1. When
functioning as a reset input, a LOW on this pin resets the microcontroller, causing I/O
ports and peripherals to take on their default states, and the processor begins
execution at address 0. Also used during a power-on sequence to force In-System
Programming mode.
When using an oscillator frequency above 12 MHz, the
reset input function of P1.5 must be enabled. An external circuit is required to
hold the device in reset at power-up until V
DD
has reached its specified level.
When system power is removed V
DD
will fall below the minimum specified
operating voltage. When using an oscillator frequency above 12 MHz, in some
applications, an external brownout detect circuit may be required to hold the
device in reset when V
DD
falls below the minimum specified operating voltage.
13
I/O
I
I
I/O
I
I
I/O
I
I
I/O
O
I
I/O
(P1.0,
P1.1);
I (P1.5)
12
11
5
P1.0, P1.1,
P1.5
9
I/O
O
I/O
I
I
I
6
3
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P89LPC915 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontrollers with accelerated two-clock 80C51 core 2 kB 3 V Flash with 8-bit A/D converter
P89LPC9151 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with accelerated two-clock 80C51 core, 2 kB 3 V byte-erasable flash with 8-bit ADC
P89LPC9151FDH 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with accelerated two-clock 80C51 core, 2 kB 3 V byte-erasable flash with 8-bit ADC
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