參數(shù)資料
型號： P89LPC912
廠商： NXP Semiconductors N.V.
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位微控制器兩個小時80C51的核心具有1KB 3伏閃光的128字節(jié)RAM
文件頁數(shù)： 33/63頁
文件大?。?/td> 314K
代理商： P89LPC912
Philips Semiconductors
P89LPC912/913/914
8-bit microcontrollers with two-clock 80C51 core
Product data
Rev. 03 — 17 December 2004
33 of 63
9397 750 14468
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
A quasi-bidirectional port pin has a Schmitt-triggered input that also has a glitch
suppression circuit.
9.11.3
Open-drain output configuration
The open-drain output configuration turns off all pull-ups and only drives the
pull-down transistor of the port driver when the port latch contains a logic ‘0’. To be
used as a logic output, a port configured in this manner must have an external
pull-up, typically a resistor tied to V
DD
.
An open-drain port pin has a Schmitt-triggered input that also has a glitch
suppression circuit.
9.11.4
Input-only configuration
The input-only port configuration has no output drivers. It is a Schmitt-triggered input
that also has a glitch suppression circuit.
9.11.5
Push-pull output configuration
The push-pull output configuration has the same pull-down structure as both the
open-drain and the quasi-bidirectional output modes, but provides a continuous
strong pull-up when the port latch contains a logic ‘1’. The push-pull mode may be
used when more source current is needed from a port output. A push-pull port pin
has a Schmitt-triggered input that also has a glitch suppression circuit.
9.11.6
Port 0 analog functions
The P89LPC912/913/914 incorporates two Analog Comparators. In order to give the
best analog function performance and to minimize power consumption, pins that are
being used for analog functions must have the digital outputs and digital inputs
disabled.
Digital outputs are disabled by putting the port output into the Input-Only (high
impedance) mode as described in
Section 9.11.4 “Input-only configuration”
.
Digital inputs on Port 0 may be disabled through the use of the PT0AD register. On
any reset, the PT0AD bits default to ‘0’s to enable digital functions.
相關(guān)PDF資料
PDF描述
P89LPC913 8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM
P89LPC914 8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM
P89LPC914FDH 8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM
P89LPC924 8-bit microcontrollers with accelerated two-clock 80C51 core 4 kB/8 kB 3 V low-power Flash with 8-bit A/D converter
P89LPC925 8-bit microcontrollers with accelerated two-clock 80C51 core 4 kB/8 kB 3 V low-power Flash with 8-bit A/D converter
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
P89LPC912FDH 制造商:NXP Semiconductors 功能描述:MCU 8BIT 80C51 1K FLASH TSSOP14 制造商:NXP Semiconductors 功能描述:MCU 8BIT 80C51 1K FLASH, TSSOP14
P89LPC912FDH,129 功能描述:8位微控制器 -MCU 80C51 1K FL 128B RAM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
P89LPC912FDH129 制造商:NXP Semiconductors 功能描述:IC 8BIT MCU 80C51 18MHZ TSSOP-14
P89LPC912HDH 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontrollers with two-clock 80C51 core, 1 kB 3 V flash with 128-byte RAM
P89LPC913 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM
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