参数资料
型号: AT89S4051-24SC
厂商: ATMEL CORP
元件分类: 微控制器/微处理器
英文描述: 8-bit Microcontroller with 2K/4K Bytes Flash
中文描述: 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PDSO20
封装: 0.300 INCH, MS-013AC, PLASTIC, SOIC-20
文件页数: 4/45页
文件大小: 981K
代理商: AT89S4051-24SC
4
3390C–MICRO–7/05
AT89S2051/S4051
4.5
RST
Reset input. Holding the RST pin high for two machine cycles while the is running resets the
device.
Each machine cycle takes 6 or clock cycles.
4.6
XTAL1
Input to the inverting amplifier and input to the internal clock operating circuit.
4.7
XTAL2
Output from the inverting amplifier.
5.
Characteristics
XTAL1 and XTAL2 are the input and output, respectively, of an inverting amplifier which can be
configured for use as an on-chip , as shown in
Figure 5-1
. Either a quartz crystal or ceramic res-
onator 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 requirements 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.
Connections
Note:
C1, C2 = 30 pF
±
10 pF for Crystals
= 40 pF
±
10 pF for Ceramic Resonators
Figure 5-2.
External Clock Drive Configuration
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相关代理商/技术参数
参数描述
AT89S4051-24SU 功能描述:8位微控制器 -MCU 4K FLASH 24MHZ 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
AT89S4051-24SUR 功能描述:8051 89S Microcontroller IC 8-Bit 24MHz 4KB (4K x 8) FLASH 20-SOIC 制造商:atmel 系列:89S 包装:管件 零件状态:有效 核心处理器:8051 核心尺寸:8-位 速度:24MHz 连接性:UART/USART 外设:欠压检测/复位,POR,PWM I/O 数:15 程序存储容量:4KB(4K x 8) 程序存储器类型:闪存 EEPROM 容量:- RAM 容量:256 x 8 电压 - 电源(Vcc/Vdd):2.7 V ~ 5.5 V 数据转换器:- 振荡器类型:内部 工作温度:-40°C ~ 85°C(TA) 封装/外壳:20-SOIC(0.295",7.50mm 宽) 供应商器件封装:20-SOIC 标准包装:37
AT89S4D12-12RC 功能描述:8位微控制器 -MCU Microcontroller 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
AT89S4D12-12RI 功能描述:8位微控制器 -MCU Microcontroller 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
AT89S51-24AC 功能描述:8位微控制器 -MCU 4K ISP FLASH 2.7 TO 5.5V - 24 MHZ 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