参数资料
| 型号： | P89LPC972FN,129 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 16/66页 |
| 文件大小： | 0K |
| 描述： | MCU 80C51 8KB FLASH 20DIP |
| 标准包装： | 18 |
| 系列： | LPC900 |
| 核心处理器： | 8051 |
| 芯体尺寸： | 8-位 |
| 速度： | 18MHz |
| 连通性： | I²C，SPI，UART/USART |
| 外围设备： | 欠压检测/复位，POR，PWM，WDT |
| 输入/输出数： | 18 |
| 程序存储器容量： | 8KB（8K x 8） |
| 程序存储器类型： | 闪存 |
| RAM 容量： | 256 x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2.4 V ~ 5.5 V |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 20-DIP（0.300"，7.62mm） |
| 包装： | 管件 |
| 其它名称： | 568-8749-5 P89LPC972FN,129-ND |
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P89LPC97X
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 3 — 8 June 2010
23 of 66
NXP Semiconductors
P89LPC970/971/972
8-bit microcontroller with accelerated two-clock 80C51 core
not by another interrupt of the same or lower priority. The highest priority interrupt service
cannot be interrupted by any other interrupt source. If two requests of different priority
levels are pending at the start of an instruction, the request of higher priority level is
serviced.
If requests of the same priority level are pending at the start of an instruction, an internal
polling sequence determines which request is serviced. This is called the arbitration
ranking. Note that the arbitration ranking is only used to resolve pending requests of the
same priority level.
7.15.1 External interrupt inputs
The P89LPC970/971/972 has two external interrupt inputs as well as the Keypad Interrupt
function. The two interrupt inputs are identical to those present on the standard 80C51
microcontrollers.
These external interrupts can be programmed to be level-triggered or edge-triggered by
setting or clearing bit IT1 or IT0 in Register TCON.
In edge-triggered mode, if successive samples of the INTn pin show a HIGH in one cycle
and a LOW in the next cycle, the interrupt request flag IEn in TCON is set, causing an
interrupt request.
If an external interrupt is enabled when the P89LPC970/971/972 is put into Power-down
or Idle mode, the interrupt will cause the processor to wake-up and resume operation.
Refer to Section 7.17.3 “Power reduction modes” for details.
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| P89LPC980 | 制造商:PHILIPS 制造商全称: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 |
| P89LPC980FDH | 制造商:PHILIPS 制造商全称: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 |
| P89LPC980FDH,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 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 |
| P89LPC982 | 制造商:PHILIPS 制造商全称: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 |
| P89LPC982FA | 制造商:PHILIPS 制造商全称: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 |
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