参数资料
型号: P89LPC972FDH,129
厂商: NXP Semiconductors
文件页数: 64/66页
文件大小: 0K
描述: MCU 80C51 8KB FLASH 20TSSOP
标准包装: 75
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-TSSOP(0.173",4.40mm 宽)
包装: 管件
其它名称: 568-8748-5
P89LPC972FDH,129-ND
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
7 of 66
NXP Semiconductors
P89LPC970/971/972
8-bit microcontroller with accelerated two-clock 80C51 core
6.2 Pin description
Table 3.
Pin description
Symbol
Pin
Type
Description
DIP20,
TSSOP20
P0.0 to P0.7
I/O
Port 0: Port 0 is an 8-bit I/O port with a user-configurable output type. During reset
Port 0 latches are configured in the input-only mode with the internal pull-up
disabled. The operation of Port 0 pins as inputs and outputs depends upon the port
configuration selected. Each port pin is configured independently. Refer to Section
The Keypad Interrupt feature operates with Port 0 pins.
All pins have Schmitt trigger inputs.
Port 0 also provides various special functions as described below:
P0.0/CMP2/KBI0/
SPICLK
1I/O
P0.0 — Port 0 bit 0.
O
CMP2 — Comparator 2 output
I
KBI0 — Keyboard input 0.
I/O
SPICLK — SPI clock. When configured as master, this pin is output; when
configured as slave, this pin is input (pin remap).
P0.1/CIN2B/
KBI1
20
I/O
P0.1 — Port 0 bit 1.
I
CIN2B — Comparator 2 positive input B.
I
KBI1 — Keyboard input 1.
P0.2/CIN2A/
KBI2
19
I/O
P0.2 — Port 0 bit 2.
I
CIN2A — Comparator 2 positive input A.
I
KBI2 — Keyboard input 2.
P0.3/CIN1B/
KBI3/T2
18
I/O
P0.3 — Port 0 bit 3. High current source.
I
CIN1B — Comparator 1 positive input B.
I
KBI3 — Keyboard input 3.
I/O
T2 — Timer/counter 2 external count input or overflow output.
P0.4/CIN1A/
KBI4
17
I/O
P0.4 — Port 0 bit 4. High current source.
I
CIN1A — Comparator 1 positive input A.
I
KBI4 — Keyboard input 4.
P0.5/CMPREF/
KBI5/T3
16
I/O
P0.5 — Port 0 bit 5. High current source.
I
CMPREF — Comparator reference (negative) input.
I
KBI5 — Keyboard input 5.
I/O
T3 — Timer/counter 3 external count input or overflow output.
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