參數(shù)資料
型號: S-35180AT8T1
元件分類: 時鐘/數(shù)據(jù)恢復(fù)及定時提取
英文描述: REAL TIME CLOCK, PDSO8
封裝: TSSOP-8
文件頁數(shù): 44/46頁
文件大?。?/td> 498K
代理商: S-35180AT8T1
3-WIRE REAL-TIME CLOCK
Rev.2.0_00
S-35180A
Seiko Instruments Inc.
7
AC Electrical Characteristics
Table 7 Measurement Conditions
Input pulse voltage
0.2
× VCC to 0.8 × VCC
Input pulse rise/fall time
20 ns
Output determination voltage
VOH
= 0.8 × VCC VOL = 0.2 × VCC
Output load
80 pF
+ pull-up resistance 10 k
SIO
C
= 80 pF
VCC
R
= 10 k
Figure 5 Output Load Circuit
Table 8 AC Characteristics
Parameter
Symbol VDD
= 1.3 to 3.0 V (VCC = 3.0 V) VDD = 3.0 to 5.5 V (VCC = 5.5 V) Unit
Min.
Typ.
Max.
Min.
Typ.
Max.
Clock pulse width
tSCK
5
250000
1
250000
s
Setup time before CS rise
tDS
1
0.2
s
Hold time after CS rise
tCSH
1
0.2
s
Input data setup time
tISU
1
0.2
s
Input data hold time
tIHO
1
0.2
s
Output data definition time
*1
tACC
3.5
1
s
Setup time before CS fall
tCSS
1
0.2
s
Hold time after CS fall
tDH
1
0.2
s
Input rise/fall time
tR, tF
0.1
0.05
s
*1. Since the output format of the SIO pin is Nch open-drain output, output data definition time is determined
by the values of the load resistance (RL) and load capacity (CL) outside the IC. Therefore, use this value
only as a reference value.
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