參數(shù)資料
型號: DS87C530-ENL
英文描述: EPROM MICRO WITH REAL TIME CLOCK
中文描述: 微型存儲器與實時時鐘
文件頁數(shù): 10/40頁
文件大?。?/td> 435K
代理商: DS87C530-ENL
DS87C530
022197 10/40
INTERNAL BACKUP CIRCUIT
Figure 3
V
BAT
+
V
CC
(SRAM AND RTC)
V
CC
1.5K
IMPORTANT APPLICATION NOTE
The pins on the DS87C530 are generally as resilient as other CMOS circuits. They have no unusual susceptibility to
electrostatic discharge (ESD) or other electrical transients.
However, no pin on the DS87C530 should ever be tak-
en to a voltage below ground.
Negative voltages on any pin can turn on internal parasitic diodes that draw current
directly from the battery. If a device pin is connected to the “outside world” where it may be handled or come in contact
with electrical noise, protection should be added to prevent the device pin from going below -0.3V. Some power sup-
plies can give a small undershoot on power up, which should be prevented. Application Note 93, “Design Guidelines
for Microcontrollers Incorporating NVRAM”, discusses how to protect the DS87C530 against these conditions.
相關(guān)PDF資料
PDF描述
DS87C530-KCL EPROM MICRO WITH REAL TIME CLOCK
DS87C530-QNL EPROM MICRO WITH REAL TIME CLOCK
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DS87C550-QCL EPROM High-Speed Micro with A/D and PWM
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS87C530-ENL+ 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:EPROM/ROM Microcontrollers with Real-Time Clock
DS87C530-KCL 功能描述:8位微控制器 -MCU EPROM MCU w/RTC 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
DS87C530-QCL 功能描述:8位微控制器 -MCU EPROM MCU w/RTC 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
DS87C530-QCL+ 功能描述:8位微控制器 -MCU EPROM MCU w/RTC 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