参数资料
型号: AT89C2051-12PU
厂商: Atmel
文件页数: 14/19页
文件大小: 0K
描述: IC 8051 MCU FLASH 2K 20DIP
产品培训模块: MCU Product Line Introduction
标准包装: 18
系列: 89C
核心处理器: 8051
芯体尺寸: 8-位
速度: 12MHz
连通性: UART/USART
外围设备: LED
输入/输出数: 15
程序存储器容量: 2KB(2K x 8)
程序存储器类型: 闪存
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 6 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
4
0368H–MICRO–6/08
AT89C2051
4.7
XTAL2
Output from the inverting oscillator amplifier.
5.
Oscillator Characteristics
The XTAL1 and XTAL2 are the input and output, respectively, of an inverting amplifier which can
be configured for use as an on-chip oscillator, as shown in Figure 5-1. Either a quartz crystal or
ceramic resonator may be used. To drive the device from an external clock source, XTAL2
should be left unconnected while XTAL1 is driven as shown in Figure 5-2. There are no require-
ments on the duty cycle of the external clock signal, since the input to the internal clocking
circuitry is through a divide-by-two flip-flop, but minimum and maximum voltage high and low
time specifications must be observed.
Figure 5-1.
Oscillator Connections
Note:
C1, C2 = 30 pF
± 10 pF for Crystals
= 40 pF
± 10 pF for Ceramic Resonators
Figure 5-2.
External Clock Drive Configuration
相关PDF资料
PDF描述
VE-B2T-IX-F2 CONVERTER MOD DC/DC 6.5V 75W
ATTINY43U-MUR MCU AVR 4KB FLASH 8MHZ 20QFN
VI-J14-IW CONVERTER MOD DC/DC 48V 100W
VE-B2T-IW-F4 CONVERTER MOD DC/DC 6.5V 100W
ATTINY84-20SSUR MCU AVR 8KB FLASH 10MHZ 14SOIC
相关代理商/技术参数
参数描述
AT89C2051-12PU SL383 制造商:Atmel Corporation 功能描述:8051 MCU, 20 PINS, UART, 2K FL
AT89C2051-12SA 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-Bit Microcontroller with 2K Bytes Flash
AT89C205112SC 制造商:ATMEL 功能描述:*
AT89C2051-12SC 功能描述:8位微控制器 -MCU 20 PINS UART 2K - FLASH - 12MHZ 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
AT89C2051-12SI 功能描述:8位微控制器 -MCU 20 PINS UART 2K - FLASH - 12MHZ 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