- 您现在的位置：买卖IC网 > PDF目录296762 > P89LPC9381FDH (NXP Semiconductors N.V.) 8-bit microcontroller with accelerated two-clock 80C51 core 4 kB 3 V byte-erasable flash with 10-bit ADC PDF资料下载
参数资料
| 型号： | P89LPC9381FDH |
| 厂商： | NXP Semiconductors N.V. |
| 元件分类： | 8位微控制器 |
| 英文描述： | 8-bit microcontroller with accelerated two-clock 80C51 core 4 kB 3 V byte-erasable flash with 10-bit ADC |
| 封装： | P89LPC9381FDH<SOT361-1 (TSSOP28)|<<http://www.nxp.com/packages/SOT361-1.html<1<Always Pb-free,; |
| 文件页数： | 15/59页 |
| 文件大小： | 286K |
| 代理商： | P89LPC9381FDH |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页当前第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页
P89LPC9381_1
Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheet
Rev. 01 — 8 September 2006
22 of 60
Philips Semiconductors
P89LPC9381
8-bit microcontroller with 10-bit ADC
7.13 I/O ports
The P89LPC9381 has four I/O ports: Port 0, Port 1, Port 2, and Port 3. Ports 0, 1 and 2
are 8-bit ports, and Port 3 is a 2-bit port. The exact number of I/O pins available depends
upon the clock and reset options chosen, as shown in Table 7.
[1]
Required for operation above 12 MHz.
7.13.1 Port congurations
All but three I/O port pins on the P89LPC9381 may be congured by software to one of
four types on a bit-by-bit basis. These are: quasi-bidirectional (standard 80C51 port
outputs), push-pull, open-drain, and input-only. Two conguration registers for each port
select the output type for each port pin.
1. P1[5] (RST) can only be an input and cannot be congured.
2. P1[2] (SCL/T0) and P1[3] (SDA/INT0) may only be congured to be either input-only
or open-drain.
7.13.1.1
Quasi-bidirectional output conguration
Quasi-bidirectional output type can be used as both an input and output without the need
to recongure the port. This is possible because when the port outputs a logic HIGH, it is
weakly driven, allowing an external device to pull the pin LOW. When the pin is driven
LOW, it is driven strongly and able to sink a fairly large current. These features are
somewhat similar to an open-drain output except that there are three pull-up transistors in
the quasi-bidirectional output that serve different purposes.
The P89LPC9381 is a 3 V device, but the pins are 5 V tolerant. In quasi-bidirectional
mode, if a user applies 5 V on the pin, there will be a current owing from the pin to VDD,
causing extra power consumption. Therefore, applying 5 V in quasi-bidirectional mode is
discouraged.
A quasi-bidirectional port pin has a Schmitt triggered input that also has a glitch
suppression circuit.
7.13.1.2
Open-drain output conguration
The open-drain output conguration 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 congured in this manner must have an external pull-up, typically a resistor
tied to VDD.
Table 7.
Number of I/O pins available
Clock source
Reset option
Number of I/O pins
(28-pin package)
On-chip oscillator or watchdog oscillator
No external reset (except during power-up)
26
External RST pin supported
25
External clock input
No external reset (except during power-up)
25
External RST pin supported[1]
24
Low/medium/high speed oscillator
(external crystal or resonator)
No external reset (except during power-up)
24
External RST pin supported[1]
23
相关PDF资料 |
PDF描述 |
|---|---|
| P89LPC938FDH | 8-bit microcontroller with accelerated two-clock 80C51 core 8 kB 3 V byte-erasable Flash with 10-bit A-D converter |
| P8 | HERMAPHRODITIC, STRAIGHT BOARD STACKING CONNECTOR, SURFACE MOUNT |
| PA33 | Operational Amplifier |
| PA33A | Operational Amplifier |
| PA35WPF | KLEMMLEISTE KABELSCHUTZ 12POL 380VAC 6A |
相关代理商/技术参数 |
参数描述 |
|---|---|
| P89LPC9381FDH,512 | 功能描述:8位微控制器 -MCU 4K FL/256B RAM/ RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| P89LPC938FA | 制造商:NXP Semiconductors 功能描述:IC MCU 8BIT 80C51 8K FLASH PLCC28 |
| P89LPC938FA,129 | 功能描述:8位微控制器 -MCU 80C51 8K FL 768B RAM RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| P89LPC938FA129 | 制造商:NXP Semiconductors 功能描述:P89LPC938FA/PLCC28/TUBESM// |
| P89LPC938FDH | 制造商:NXP Semiconductors 功能描述:MCU 8BIT 80C51 8K FLASH TSSOP28 制造商:NXP Semiconductors 功能描述:MCU 8BIT 80C51 8K FLASH, TSSOP28 制造商:NXP Semiconductors 功能描述:MCU 8BIT 80C51 8K FLASH, TSSOP28, Controller Family/Series:(8051) 8052, Core Siz |
发布紧急采购，3分钟左右您将得到回复。