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參數(shù)資料
| 型號： | BQ3285LDSSTRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | XO, clock |
| 英文描述： | REAL TIME CLOCK, PDSO24 |
| 封裝： | 0.150 INCH, GREEN, PLASTIC, SSOP-24 |
| 文件頁數(shù)： | 2/27頁 |
| 文件大?。?/td> | 170K |
| 代理商： | BQ3285LDSSTRG4 |
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This bit inhibits the transfer of RTC bytes to the user
buffer:
1 = Inhibits transfer and clears UIE
0 = Allows transfer
Register C
Register C is the read-only event status register.
Bits 0, 1, 2, 3 - Unused Bits
These bits are always set to 0.
UF - Update Event Flag
This bit is set toa1atthe end of the update cycle.
Reading register C clears this bit.
AF - Alarm Event Flag
This bit is set to a 1 when an alarm event occurs. Read-
ing register C clears this bit.
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
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 provides for the read-only data integrity
status bit, and the day-of-the-month alarm.
Bits6-Unused Bit
This bit is always set to 0.
VRT - Valid RAM and Time
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.
DA0–DA5
These bits store the value for the day-of-the-month
alarm. If DA0–DA5 are set to zero, then the day-of-the-
month alarm is disabled . These bits are not affected by
a reset.
10
7654
3
210
----
0
-
0
7654
3
210
---
UF
-
---
7654
3
210
--
AF
-
---
7654
3
210
-PF-
-
7654
3
210
INTF
-
July 1997
bq3285ED/LD
Register C Bits
7654
3
210
INTF
PF
AF
UF
0
-
0
7654
3
210
-0-
-
7654
3
210
-
DA5
DA4
DA3
DA2
DA1
DA0-
Register D Bits
7654
3
210
VRT
0
DA5
DA4
DA3
DA2
DA1
DA0
7654
3
210
VRT
-
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|---|---|
| BQ3285LDSS | 0 TIMER(S), REAL TIME CLOCK, PDSO24 |
| BQ3285EDSS | 0 TIMER(S), REAL TIME CLOCK, PDSO24 |
| BQ3285LSS | 1 TIMER(S), REAL TIME CLOCK, PDSO24 |
| BQ3285S | 1 TIMER(S), REAL TIME CLOCK, PDSO24 |
| BQ3387P | 1 TIMER(S), REAL TIME CLOCK, PDIP24 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BQ3285LF | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Y2K-Enhanced Real-Time Clock (RTC) |
| BQ3285LF-SS | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Y2K-Enhanced Real-Time Clock (RTC) |
| BQ3285LFSS-A1 | 功能描述:實(shí)時(shí)時(shí)鐘 w/240x8 NVSRAM Alarm Wake-up 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(shí)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 |
| BQ3285LFSS-A1G4 | 功能描述:實(shí)時(shí)時(shí)鐘 w/240x8 NVSRAM Alarm Wake-up 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(shí)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 |
| BQ3285LFSS-A1TR | 功能描述:實(shí)時(shí)時(shí)鐘 w/240x8 NVSRAM Alarm Wake-up 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(shí)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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