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参数资料
| 型号： | P89LPC935FA,129 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 24/77页 |
| 文件大小： | 0K |
| 描述： | IC 80C51 MCU FLASH 8K 28-PLCC |
| 产品培训模块： | Migrating from 8/16-Bit MCUs to 32-Bit ARMs |
| 标准包装： | 37 |
| 系列： | LPC900 |
| 核心处理器： | 8051 |
| 芯体尺寸： | 8-位 |
| 速度： | 12MHz |
| 连通性： | I²C，SPI，UART/USART |
| 外围设备： | 欠压检测/复位，LED，POR，PWM，WDT |
| 输入/输出数： | 26 |
| 程序存储器容量： | 8KB（8K x 8） |
| 程序存储器类型： | 闪存 |
| EEPROM 大小： | 512 x 8 |
| RAM 容量： | 768 x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2.4 V ~ 3.6 V |
| 数据转换器： | A/D 8x8b; D/A 2x8b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 28-PLCC |
| 包装： | 管件 |
| 产品目录页面： | 706 (CN2011-ZH PDF) |
| 配用： | 622-1014-ND - BOARD FOR LPC9XX TSSOP 622-1006-ND - SOCKET ADAPTER BOARD 568-4000-ND - DEMO BOARD SPI/I2C TO DUAL UART 568-3510-ND - DEMO BOARD SPI/I2C TO UART 622-1002-ND - USB IN-CIRCUIT PROG LPC9XX 568-1759-ND - EMULATOR DEBUGGER/PROGRMMR LPC9X 568-1758-ND - BOARD EVAL FOR LPC93X MCU FAMILY |
| 其它名称： | 568-1287-5 935274628129 P89LPC935FA-S |
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P89LPC933_934_935_936
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 8 — 12 January 2011
30 of 77
NXP Semiconductors
P89LPC933/934/935/936
8-bit microcontroller with accelerated two-clock 80C51 core
8.13 I/O ports
The P89LPC933/934/935/936 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 8.
[1]
Required for operation above 12 MHz.
8.13.1 Port configurations
All but three I/O port pins on the P89LPC933/934/935/936 may be configured 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 configuration registers for each
port select the output type for each port pin.
1. P1.5 (RST) can only be an input and cannot be configured.
2. P1.2 (SCL/T0) and P1.3 (SDA/INT0) may only be configured to be either input-only or
open-drain.
8.13.1.1
Quasi-bidirectional output configuration
Quasi-bidirectional output type can be used as both an input and output without the need
to reconfigure 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 P89LPC933/934/935/936 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 flowing
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 trigger input that also has a glitch suppression
circuit.
8.13.1.2
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 VDD.
Table 8.
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
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| P89LPC935FDH | 制造商:NXP Semiconductors 功能描述: |
| P89LPC935FDH,518 | 功能描述:8位微控制器 -MCU 8B MCU 2-CLOCK 80C51 4/8/16KB 3V 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 |
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| P89LPC935FDH529 | 制造商:NXP Semiconductors 功能描述:IC 8BIT MCU 80C51 18MHZ TSSOP-28 |
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