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| PCF8574DGVR资料 | |
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PCF8574DGVR PDF Download |
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File Size : 116 KB
Manufacturer:TI Description:The DP8572A (8572AM militarized version) is intended for use in microprocessor based systems where information is required for multi-tasking data logging or general time of day date information This device is implemented in low voltage silicon gate microCMOS technology to provide low standby power in battery back-up environments The cir- cuits architecture is such that it looks like a contiguous block of memory or I O ports The address space is orga- nized as 2 software selectable pages of 32 bytes This in- cludes the Control Registers the Clock Counters the Alarm Compare RAM and the Time Save RAM Any of the RAM locations that are not being used for their intended purpose may be used as general purpose CMOS RAM Time and date are maintained from 1 100 of a second to year and leap year in a BCD format 12 or 24 hour modes Day of week day of month and day of year counters are provided Time is controlled by an on-chip crystal oscillator requiring only the addition of the crystal and two capacitors The choice of crystal frequency is program selectable Power failure logic and control functions have been integrat- ed on chip This logic is used by the RTC to issue a power fail interrupt and lock out the mp interface The time power fails may be logged into RAM automatically when VBB l |
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| 1PCS | 100PCS | 1K | 10K | ||
| 价 格 | |||||
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型 号：PCF8574DGVR 厂 家：TI 封 装： 批 号：07+ 数 量：44583 说 明：原装正品 |
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运 费：所有运费均有我司承担 所在地：深圳 新旧程度： |
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| 联系人：申小姐 |
| 电 话：0755-83330991,0755-83047629 |
| 手 机：15811820920 |
| QQ：2355514181 |
| MSN：chipstech-int@hotmail.com |
| 传 真：0755-61658118 |
| EMail：sales@chipstech-int.com |
| 公司地址： 深圳市福田区中航路鼎城国际1017 |
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1. 所有我司提供的货物，均为原厂原装正品！ 2. 我们的报价是不含税价格。含税需要增加相应的税点。
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