參數(shù)資料
型號: S-35392A-I8T1U
元件分類: 時鐘/數(shù)據(jù)恢復(fù)及定時提取
英文描述: 1 TIMER(S), REAL TIME CLOCK, PDSO8
封裝: HALOGEN FREE AND LEAD FREE, SNT-8
文件頁數(shù): 43/47頁
文件大小: 419K
代理商: S-35392A-I8T1U
2-WIRE REAL-TIME CLOCK
Rev.2.0_00
S-35392A
Seiko Instruments Inc.
5
Absolute Maximum Ratings
Table 2
Parameter
Symbol
Applicable Pin
Rating
Unit
Power supply voltage
VDD
VSS 0.3 to VSS + 6.5
V
Input voltage
VIN
SCL, SDA
VSS 0.3 to VSS + 6.5
V
Output voltage
VOUT
SDA, 32KO,
2
INT
VSS 0.3 to VSS + 6.5
V
Operating ambient temperature
*1
Topr
40 to +85
°C
Storage temperature
Tstg
55 to +125
°C
*1. Conditions with no condensation or frost. Condensation and frost cause short circuiting between pins, resulting in a
malfunction.
Caution
The absolute maximum ratings are rated values exceeding which the product could suffer physical
damage.
These values must therefore not be exceeded under any conditions.
Recommended Operation Conditions
Table 3
(VSS = 0 V)
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
Power supply voltage
*1
VDD
Ta =
40 to +85°C
1.3
3.0
5.5
V
Time keeping power supply voltage
*2
VDDT
Ta =
40 to +85°C
VDET 0.15
5.5
V
Crystal oscillator CL value
CL
6
7
pF
*1. The power supply voltage that allows communication under the conditions shown in Table 8 of “
AC Electrical
Characteristics”.
*2. The power supply voltage that allows time keeping.
For the relationship with VDET (low power supply voltage
detection voltage), refer to “
Characteristics (Typical Data)”.
Oscillation Characteristics
Table 4
(Ta = 25
°C, V
DD = 3.0 V, VSS = 0 V, VT-200 crystal oscillator (CL = 6 pF, 32.768 kHz) manufactured by Seiko Instruments Inc.)
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
Oscillation start voltage
VSTA
Within 10 seconds
1.1
5.5
V
Oscillation start time
tSTA
1
s
IC-to-IC frequency deviation
*1
δIC
10
+10
ppm
Frequency voltage deviation
δV
VDD = 1.3 to 5.5 V
3
+3
ppm/V
External capacitance
Cg
Applied to XIN pin
9.1
pF
Internal oscillation capacitance
Cd
Applied to XOUT pin
8
pF
*1. Reference value
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