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參數(shù)資料
| 型號： | BQ4802LYDWR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | XO, clock |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PDSO28 |
| 封裝： | GREEN, PLASTIC, SOIC-28 |
| 文件頁數(shù)： | 23/24頁 |
| 文件大?。?/td> | 481K |
| 代理商： | BQ4802LYDWR |
bq4802Y
bq4802LY
SLUS464C – AUGUST 2000 – REVISED JUNE 2002
www.ti.com
8
WRITE CYCLE TIMING DIAGRAMS
Address
Data-In Valid
High-Z
tWR1
CS
WE
DOUT
DIN
Data Undefined (see Note B)
tWZ
tOW
tDW
tWP
tAS
tCW
tAW
tWC
tDH1
NOTES: A. WE or CS must be held high during address transition.
B. Because I/O may be active (OE low) during the period, data input signals of opposite polarity to the outputs must be applied.
C. If OE is high, the I/O pins remain in a state of high impedance.
Figure 7. Write Cycle No. 1 – WE Controlled
Data-In Valid
High-Z
tWR2
DOUT
DIN
CS
WE
Address
Data Undefined (see Note B)
tWC
tAW
tCW
tWP
tDW
tDH2
tWZ
tAS
NOTES: A. WE or CS must be held high during address transition.
B. Because I/O may be active (OE low) during the period, data input signals of opposite polarity to the outputs must be applied.
C. If OE is high, the I/O pins remain in a state of high impedance.
D. Either tWR1 or tWR2 must be met.
E. Either tDH1 or tDH2 must be met.
Figure 8. Write Cycle No. 2 – CS Controlled
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BQ4802LYDWRG4 | 功能描述:實時時鐘 Parallel RTC RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| BQ4802LYPW | 功能描述:實時時鐘 Parallel RTC RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| BQ4802LYPWG4 | 功能描述:實時時鐘 Parallel RTC RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| BQ4802LYPWR | 功能描述:實時時鐘 Parallel RTC RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| BQ4802LYPWRG4 | 功能描述:實時時鐘 Parallel RTC RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
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