參數(shù)資料
型號(hào): R2025D
廠商: RICOH COMPANY LTD
元件分類(lèi): XO, clock
英文描述: High precision I2C-Bus Real-Time Clock Module
中文描述: REAL TIME CLOCK, DSO20
封裝: 6.10 X 5 MM, 1.30 MM HEIGHT, SON-22/20
文件頁(yè)數(shù): 6/47頁(yè)
文件大?。?/td> 524K
代理商: R2025D
R2025S/D
AC ELECTRICAL CHARACTERISTICS
6
Unless otherwise specified: VSS=0V,Topt=-40 TO +85
°
C
Input / Output condition: VIH=0.8xVDD,VIL=0.2xVDD,VOH=0.8xVDD,VOL=0.2xVDD,CL=50pF
Symbol
Item
VDD
1.7V
Typ.
Condi-
tion
Min.
Max.
400
Unit
f
SCL
t
LOW
t
HIGH
t
HD;STA
t
SU;STO
t
SU;STA
t
RCV
SCL Clock Frequency
SCL Clock ”L” Time
SCL Clock ”H” Time
Start Condition Hold Time
Stop Condition Set Up Time
Start Condition Set Up Time
Ricovery Time from Stop
Condition to Start Condition
Data Set Up Time
Data Hold Time
SDA “L” Stable Time
After Falling of SCL
SDA off Stable Time
After Falling of SCL
Rising Time of SCL and
SDA (input)
Falling Time of SCL and
SDA (input)
Spike Width that can be
removed with Input Filter
1.3
0.6
0.6
0.6
0.6
62
KHz
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
t
SU;DAT
t
HD;DAT
t
PL;DAT
200
0
0.9
ns
ns
μ
s
t
PZ;DAT
0.9
μ
s
t
R
300
ns
t
F
300
ns
t
SP
50
ns
SDA(OUT)
SCL
S
Sr
P
t
PZ;DAT
t
HIGH
t
SU;DAT
t
HD;STA
t
SP
t
SU;STO
t
LOW
t
SU;STA
SDA(IN)
t
HD;STA
t
PL;DAT
Sr
P
Stop Condition
S
Start Condition
Repeated Start Condition
t
HD;DAT
t
RCV
S
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