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參數(shù)資料
| 型號： | P89LPC982FA,529 |
| 廠商： | NXP Semiconductors |
| 文件頁數(shù)： | 33/85頁 |
| 文件大?。?/td> | 0K |
| 描述： | MCU 80C51 8KB FLASH 28PLCC |
| 標(biāo)準(zhǔn)包裝： | 296 |
| 系列： | LPC900 |
| 核心處理器： | 8051 |
| 芯體尺寸： | 8-位 |
| 速度： | 18MHz |
| 連通性： | I²C，SPI，UART/USART |
| 外圍設(shè)備： | 欠壓檢測/復(fù)位，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 26 |
| 程序存儲器容量： | 8KB（8K x 8） |
| 程序存儲器類型： | 閃存 |
| RAM 容量： | 512 x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 2.4 V ~ 5.5 V |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 28-PLCC |
| 包裝： | 管件 |
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P89LPC980_982_983_985
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 4 — 15 June 2010
39 of 85
NXP Semiconductors
P89LPC980/982/983/985
8-bit microcontroller with accelerated two-clock 80C51 core
7.16 I/O ports
The P89LPC980/982/983/985 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 9.
7.16.1 Port configurations
All but three I/O port pins on the P89LPC980/982/983/985 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.
7.16.1.1
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.
A quasi-bidirectional port pin has a Schmitt trigger input that also has a glitch suppression
circuit.
7.16.1.2
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.
An open-drain port pin has a Schmitt trigger input that also has a glitch suppression
circuit.
Table 9.
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
24
Low/medium/high speed
oscillator (external crystal or
resonator)
No external reset (except during
power-up)
24
External RST pin supported
23
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| P89LPC982FDH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with accelerated two-clock 80C51 core, 4 kB/8 kB wide-voltage byte-erasable flash with 10-bit ADC |
| P89LPC982FDH,529 | 功能描述:8位微控制器 -MCU 8b MICROCNTR ACCLRTD TWO CLK 80C51 CORE 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 |
| P89LPC983 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with accelerated two-clock 80C51 core, 4 kB/8 kB wide-voltage byte-erasable flash with 10-bit ADC |
| P89LPC983FDH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with accelerated two-clock 80C51 core, 4 kB/8 kB wide-voltage byte-erasable flash with 10-bit ADC |
| P89LPC983FDH,529 | 功能描述:8位微控制器 -MCU 8B MCU 2 CLOCK 80C51 4/8KB WIDE-10B 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 |
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