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參數(shù)資料
| 型號： | BQ4285Q |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | XO, clock |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PQCC28 |
| 封裝： | PLASTIC, LCC-28 |
| 文件頁數(shù)： | 3/26頁 |
| 文件大?。?/td> | 1079K |
| 代理商： | BQ4285Q |
11
Register C
Register C Bits
7654
3
210
INTF
PF
AF
UF
0
Register C is the read-only event status register.
Bits 0–3 - Unused Bits
7654
3
210
----
0
These bits are always set to 0.
UF - Update-Event Flag
7654
3
210
---
UF
-
---
This bit is set toa1atthe end of the update cycle.
Reading register C clears this bit.
AF - Alarm Event Flag
7654
3
210
--
AF
-
---
This bit is set to a 1 when an alarm event occurs. Read-
ing register C clears this bit.
7654
3
210
-PF-
-
PF - Periodic Event Flag
This bit is set to a 1 every tPI time, where tPI is the time
period selected by the settings of RS0–RS3 in register A.
Reading register C clears this bit.
INTF - Interrupt Request Flag
7654
3
210
INTF
-
This flag is set to a 1 when any of the following is true:
AIE = 1 and AF = 1
PIE = 1 and PF = 1
UIE = 1 and UF = 1
Reading register C clears this bit.
Register D
Register D Bits
7654
3
210
VRT
000
0
000
Register D is the read-only data integrity status regis-
ter.
Bits 0–6 - Unused Bits
7654
3
210
-
000
0
000
These bits are always set to 0.
VRT - Valid RAM and Time
7654
3
210
VRT
---
-
---
1 = Valid backup energy source
0 = Backup energy source is depleted
When the backup energy source is depleted (VRT = 0),
data integrity of the RTC and storage registers is not
guaranteed.
Jan. 1999 D
bq4285
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| BQ4285Q- | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Real-Time Clock RTC With NVRAM Control |
| BQ4285S- | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Real-Time Clock RTC With NVRAM Control |
| BQ4285S-SB2 | 功能描述:實時時鐘 RTC IC: 114x8 NVSRAM & NVSRAM Control 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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| BQ4285S-SB2G4 | 功能描述:實時時鐘 RTC IC: 114x8 NVSRAM & NVSRAM Control 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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| BQ4285S-SB2TR | 功能描述:實時時鐘 RTC IC: 114x8 NVSRAM & NVSRAM Control 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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
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