參數(shù)資料
      

      


      


      
型號(hào)：
X1228V14IZ

      

      
廠商：
INTERSIL CORP

      

      
元件分類：
XO, clock

      

      
英文描述：
RTC Module With CPU Supervisor

      

      
中文描述：
1 TIMER(S), REAL TIME CLOCK, PDSO14

      

      
封裝：
ROHS COMPLIANT, PLASTIC, MO-153AC, TSSOP-14

      

      
文件頁數(shù)：
21/31頁

      

      
文件大?。?/td>
569K

      

      
代理商：
X1228V14IZ


      

      

      

	
      
    
    

    
      
	
      X1228 
      REV 1.3 3/24/04
      Characteristics subject to change without notice.     
      21 of 31
      www.xicor.com
      A write to a protected block of memory is ignored, but
      will still receive an acknowledge. At the end of the write
      command, the X1228 will not initiate an internal write
      cycle, and will continue to ACK commands.
      Page Write
      The X1228 has a page write operation. It is initiated in
      the same manner as the byte write operation; but
      instead of terminating the write cycle after the first data
      byte is transferred, the master can transmit up to 63
      more bytes to the memory array and up to 7 more
      bytes to the clock/control registers. (Note: Prior to writ-
      ing to the CCR, the master must write a 02h, then 06h
      to the status register in two preceding operations to
      enable the write operation. See “Writing to the Clock/
      Control Registers.”
      After the receipt of each byte, the X1228 responds with
      an acknowledge, and the address is internally incre-
      mented by one. When the counter reaches the end of
      the page, it “rolls over” and goes back to the first
      address on the same page. This means that the mas-
      ter can write 64 bytes to a memory array page or 8
      bytes to a CCR section starting at any location on that
      page. For example, if the master begins writing at loca-
      tion 40 of the memory and loads 30 bytes, then the first
      23 bytes are written to addresses 40 through 63, and
      the last 7 bytes are written to columns 0 through 6.
      Afterwards, the address counter would point to location
      7 on the page that was just written. If the master sup-
      plies more than the maximum bytes in a page, then the
      previously loaded data is over written by the new data,
      one byte at a time. Refer to Figure 12.
      The master terminates the Data Byte loading by issu-
      ing a stop condition, which causes the X1228 to begin
      the nonvolatile write cycle. As with the byte write oper-
      ation, all inputs are disabled until completion of the
      internal write cycle. Refer to Figure 13 for the address,
      acknowledge, and data transfer sequence.
      Stops and Write Modes
      Stop conditions that terminate write operations must
      be sent by the master after sending at least 1 full data
      byte and it’s associated ACK signal. If a stop is issued
      in the middle of a data byte, or before 1 full data byte +
      ACK is sent, then the X1228 resets itself without per-
      forming the write. The contents of the array are not
      affected.
      Figure 13. Page Write Sequence
      Word
      Address 0
      S
      t
      a
      r
      t
      S
      t
      o
      p
      Slave 
      Address
      Word 
      Address 1
      Data
      (n)
      A
      C
      K
      A
      C
      K
      A
      C
      K
      SDA Bus
      Signals from 
      the Slave
      Signals from 
      the Master
      0
      Data
      (1)
      A
      C
      K
      1 
      ≤
       n 
      ≤
       64 for EEPROM array
      1 
      ≤
       n 
      ≤
       8 for CCR
      1
      1
      1
      1
      0 0 0 0 0 0 0
      
    
      
    
    
      


      


      

      相關(guān)PDF資料
      		

      PDF描述
      		

      
      

      
X1228V14IZ-2.7A
RTC Module With CPU Supervisor

      

      
X1228V14Z
RTC Module With CPU Supervisor

      

      
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      相關(guān)代理商/技術(shù)參數(shù)
      		

      參數(shù)描述
      		

      
      

      
X1228V14IZ-2.7
功能描述:IC RTC/CAL/CPU SUP EE 14-TSSOP RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 實(shí)時(shí)時(shí)鐘 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:時(shí)鐘/日歷 特點(diǎn):警報(bào)器，閏年，SRAM 存儲(chǔ)容量:- 時(shí)間格式:HH:MM:SS（12/24 小時(shí)） 數(shù)據(jù)格式:YY-MM-DD-dd 接口:SPI 電源電壓:2 V ~ 5.5 V 電壓 - 電源，電池:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-TDFN EP 包裝:管件

      

      
X1228V14IZ-2.7A
功能描述:IC RTC/CAL/CPU SUP EE 14-TSSOP RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 實(shí)時(shí)時(shí)鐘 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:時(shí)鐘/日歷 特點(diǎn):警報(bào)器，閏年，SRAM 存儲(chǔ)容量:- 時(shí)間格式:HH:MM:SS（12/24 小時(shí)） 數(shù)據(jù)格式:YY-MM-DD-dd 接口:SPI 電源電壓:2 V ~ 5.5 V 電壓 - 電源，電池:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-TDFN EP 包裝:管件

      

      
X1228V14IZ-4.5A
功能描述:IC RTC/CAL/CPU SUP EE 14-TSSOP RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 實(shí)時(shí)時(shí)鐘 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:時(shí)鐘/日歷 特點(diǎn):警報(bào)器，閏年，SRAM 存儲(chǔ)容量:- 時(shí)間格式:HH:MM:SS（12/24 小時(shí)） 數(shù)據(jù)格式:YY-MM-DD-dd 接口:SPI 電源電壓:2 V ~ 5.5 V 電壓 - 電源，電池:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-TDFN EP 包裝:管件

      

      
X1228V14Z
功能描述:IC RTC/CAL/CPU SUP EE 14-TSSOP RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 實(shí)時(shí)時(shí)鐘 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:時(shí)鐘/日歷 特點(diǎn):警報(bào)器，閏年，SRAM 存儲(chǔ)容量:- 時(shí)間格式:HH:MM:SS（12/24 小時(shí)） 數(shù)據(jù)格式:YY-MM-DD-dd 接口:SPI 電源電壓:2 V ~ 5.5 V 電壓 - 電源，電池:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-TDFN EP 包裝:管件

      

      
X1228V14Z-2.7
功能描述:IC RTC/CAL/CPU SUP EE 14-TSSOP RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 實(shí)時(shí)時(shí)鐘 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:時(shí)鐘/日歷 特點(diǎn):警報(bào)器，閏年，SRAM 存儲(chǔ)容量:- 時(shí)間格式:HH:MM:SS（12/24 小時(shí)） 數(shù)據(jù)格式:YY-MM-DD-dd 接口:SPI 電源電壓:2 V ~ 5.5 V 電壓 - 電源，電池:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-TDFN EP 包裝:管件

      

      
    
    
    
	
      	
    
    
     
     
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