- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄369480 > BQ3285LS Real-Time Clock PDF資料下載
參數(shù)資料
| 型號： | BQ3285LS |
| 英文描述： | Real-Time Clock |
| 中文描述： | 實時時鐘 |
| 文件頁數(shù)： | 4/26頁 |
| 文件大?。?/td> | 831K |
| 代理商： | BQ3285LS |
Functional Description
Address Map
The bq3285EC/LC provides 14 bytes of clock and con-
trol/status registers and 242 bytes of general nonvolatile
storage.
Figure 1 illustrates the address map for the
bq3285EC/LC.
Update Period
The update period for the bq3285EC/LC is one second.
The bq3285EC/LC updates the contents of the clock and
calendar locations during the update cycle at the end of
each update period (see Figure 2). The alarm flag bit
may alsobeset during theupdatecycle.
The bq3285EC/LC copies the local register updates into
the user buffer accessed by the host processor. When a 1
is written to the update transfer inhibit bit (UTI) in reg-
ister B, the user copy of the clock and calendar bytes re-
mains unchanged, while the local copy of the same bytes
continues tobeupdated every second.
The update-in-progress bit (UIP) in register A is set
t
BUC
time before the beginning of an update cycle (see
Figure 2). This bit is cleared and the update-complete
flag (UF) is set at theend of theupdatecycle.
4
Figure 1. Address Map
Figure 2. Update Period Timing and UIP
bq3285EC/LC
July 1996
相關PDF資料 |
PDF描述 |
|---|---|
| BQ3285LSS-N | Avalanche Glass Passivated Bridge Rectifiers |
| BQ3287AMT | Avalanche Glass Passivated Bridge Rectifiers |
| BQ3287EA | Avalanche Glass Passivated Bridge Rectifiers |
| BQ3287MT | Avalanche Glass Passivated Bridge Rectifiers |
| BQ4013Y | Avalanche Bridge Rectifiers |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| BQ3285LS- | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Real-Time Clock RTC |
| BQ3285LSN | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Real-Time Clock RTC |
| BQ3285LSS | 制造商:Rochester Electronics LLC 功能描述:REAL TIME CLOCK IC, ENHANCED - Bulk |
| BQ3285LSS- | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Real-Time Clock RTC |
| BQ3285LSSN | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Real-Time Clock RTC |
發(fā)布緊急采購，3分鐘左右您將得到回復。