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单片机应用系统经常希望有功能全、价格低廉、体积小、及使用方便的接口电路与之配套使用,北京三誉有限公司代理的美国SUMMIT公司的S42WD42就是一款性价比很高的接口电路,它包含有四大功能:上电复位,看门狗,512字节EEPROM,第二电源电压监测。S42WD42功能简介 上电复位:S42WD42可以提供130～270ms的上电复位脉冲,同时提供高电平复位和低电平复位引脚。复位电压转折点有三种供选择:2.55V、4.25V、4.5V。
SCM applications often want to have full-featured, low cost, small size, and easy to use interface circuit and supporting the use of the Beijing Co., Ltd. triple reputation of the United States Sumitomo S42WD42 company is a very cost-effective interface circuit that contains There are four major functions: power on reset, watchdog, 512 bytes EEPROM, the second power supply voltage monitoring. S42WD42 Features Power-on reset: S42WD42 can provide 130 ~ 270ms power-on reset pulse, while providing high reset and low reset pin. Reset voltage turning point has three options: 2.55V, 4.25V, 4.5V.