參數(shù)資料
型號: PT7C4563UEX
廠商: Pericom
文件頁數(shù): 7/20頁
文件大?。?/td> 0K
描述: IC REAL TIME CLOCK 8MSOP
標準包裝: 1
類型: 時鐘/日歷
特點: 警報器,閏年,方波輸出
時間格式: HH:MM:SS(24 小時)
數(shù)據(jù)格式: YY-MM-DD-dd
接口: I²C,2 線串口
電源電壓: 1.7 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 8-TSSOP,8-MSOP(0.118",3.00mm 寬)
供應商設備封裝: 8-MSOP
包裝: 標準包裝
其它名稱: PT7C4563UEXDKR
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PT0333(09/09)
Ver: 0
15
Data Sheet
PT7C4563
Real-time Clock Module (I2C Bus)
AC Electrical Characteristics
Sym
Description
Value
Unit
VHM
Rising and falling threshold voltage high
0.8 VCC
V
VHL
Rising and falling threshold voltage low
0.2 VCC
V
Over the operating range
Symbol
Item
Min.
Typ.
Max.
Unit
fSCL
SCL clock frequency
-
400
kHz
tSU;STA
START condition set-up time
0.6
-
s
tHD;STA
START condition hold time
0.6
-
s
tSU;DAT
Data set-up time (RTC read/write)
200
-
ns
tHD;DAT1
Data hold time (RTC write)
35
-
ns
tHD;DAT2
Data hold time (RTC read)
0
-
s
tSU;STO
STOP condition setup time
0.6
-
s
tBUF
Bus idle time between a START and STOP condition
1.3
-
s
tLOW
When SCL = "L"
1.3
-
s
tHIGH
When SCL = "H"
0.6
-
s
tr
Rise time for SCL and SDA
-
0.3
s
tf
Fall time for SCL and SDA
-
0.3
s
tSP*
Allowable spike time on bus
-
50
ns
CB
Capacitance load for each bus line
-
400
pF
* Note: Only reference for design.
Signal
tf
tr
VHM
VLM
S
Sr
P
t
HD;STA
t
SP
t
SU;DAT
t
HD;STA
t
HD;DAT
t
SU;STA
t
SU;STO
SCL
SDA
t
BUF
t
HD;STA
t
SU;STA
f
SCL
t
LOW
t
HIGH
Sr
S
P
Start condition
Restart condition
Stop condition
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