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參數資料
| 型號： | BQ4845YP-A4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | XO, clock |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PDIP28 |
| 封裝： | 0.600 INCH, ROHS COMPLIANT, PLASTIC, DIP-28 |
| 文件頁數： | 2/24頁 |
| 文件大?。?/td> | 1287K |
| 代理商： | BQ4845YP-A4 |
10
Absolute Maximum Ratings
Symbol
Parameter
Value
Unit
Conditions
VCC
DC voltage applied on VCC relative to VSS
-0.3 to 7.0
V
VT
DC voltage applied on any pin excluding VCC
relative to VSS
-0.3 to 7.0
V
VT
≤ VCC + 0.3
TOPR
Operating temperature
0 to +70
°C
Commercial
-40 to +85
°C
Industrial
TSTG
Storage temperature
-55 to +125
°C
TBIAS
Temperature under bias
-40 to +85
°C
TSOLDER
Soldering temperature
+260
°C
For 10 seconds
Note:
Permanent device damage may occur if Absolute Maximum Ratings are exceeded. Functional operation
should be limited to the Recommended DC Operating Conditions detailed in this data sheet. Exposure to con-
ditions beyond the operational limits for extended periods of time may affect device reliability.
Recommended DC Operating Conditions (TA =TOPR)
Symbol
Parameter
Minimum
Typical
Maximum
Unit
Notes
VCC
Supply voltage
4.5
5.0
5.5
V
bq4845Y
4.75
5.0
5.5
V
bq4845
VSS
Supply voltage
0
V
VIL
Input low voltage
-0.3
-
0.8
V
VIH
Input high voltage
2.2
-
VCC + 0.3
V
VBC
Backup cell voltage
2.3
-
4.0
V
Note:
Typical values indicate operation at TA = 25°C.
Aug. 1995
bq4845/bq4845Y
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相關代理商/技術參數 |
參數描述 |
|---|---|
| BQ4845YP-A4E3 | 功能描述:實時時鐘 w/NVSRAM Control Watchdog Timer 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 |
| BQ4845YP-N | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Parallel RTC With CPU Supervisor |
| BQ4845YS | 制造商:BENCHMARQ MICROELECTRONICS INC 功能描述:Real Time Clock, 28 Pin, Plastic, SOP |
| BQ4845YS- | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Parallel RTC With CPU Supervisor |
| BQ4845YS-A4 | 功能描述:實時時鐘 w/NVSRAM Control Watchdog Timer 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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