參數(shù)資料
型號(hào)： BQ4845S
英文描述： Fast Recovery Glass Passivated Rectifier Diodes
中文描述： 實(shí)時(shí)時(shí)鐘
文件頁數(shù)： 10/20頁
文件大?。?/td> 1155K
代理商： BQ4845S
10
Absolute Maximum Ratings
Symbol
Parameter
Value
Unit
Conditions
V
CC
DC voltage applied on V
CC
relative to V
SS
-0.3 to 7.0
V
V
T
DC voltage applied on any pin excluding V
CC
relative to V
SS
-0.3 to 7.0
V
V
T
≤
V
CC
+ 0.3
T
OPR
Operating temperature
0 to +70
°C
Commercial
-40 to +85
°C
Industrial
T
STG
Storage temperature
-55 to +125
°C
T
BIAS
Temperature under bias
-40 to +85
°C
T
SOLDER
Soldering temperature
+260
°C
For 10 seconds
Note:
Permanent device damage may occur if
Absolute Maximum R atings
are exceeded. Functional operation
should be limited tothe Recommended DC Operating Conditions detailed in this data sheet. Exposure tocon-
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
V
CC
Supply voltage
4.5
5.0
5.5
V
bq4845Y
4.75
5.0
5.5
V
bq4845
V
SS
Supply voltage
0
0
0
V
V
IL
Input low voltage
-0.3
-
0.8
V
V
IH
Input high voltage
2.2
-
V
CC
+ 0.3
V
V
BC
Backup cell voltage
2.3
-
4.0
V
Note:
Typical values indicate operation at T
A
= 25°C.
Aug. 1995
bq4845/bq4845Y
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
BQ4845S- 制造商:TI 制造商全稱:Texas Instruments 功能描述:Parallel RTC With CPU Supervisor
BQ4845S-A4 功能描述:實(shí)時(shí)時(shí)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(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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
BQ4845S-A4G4 功能描述:實(shí)時(shí)時(shí)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(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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
BQ4845S-A4N 功能描述:實(shí)時(shí)時(shí)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(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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
BQ4845S-A4NG4 功能描述:實(shí)時(shí)時(shí)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(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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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