參數(shù)資料
型號(hào): R2033T
廠商: Ricoh Co., Ltd.
英文描述: 3 wire interface Real-Time Clock ICs
中文描述: 3線接口實(shí)時(shí)時(shí)鐘芯片
文件頁數(shù): 31/50頁
文件大?。?/td> 542K
代理商: R2033T
R2033K/T
31
However, if adding CGOUT and/or CDOUT, Time keeping Voltage and Current will be worse, and it will be hard
to oscillate. For reference, the data of Time keeping voltage and current when adding CGOUT=CDOUT=5pF
are shown in the table below.
32kHz
RD
CG
CD
OSCIN
OSCOUT
CGOUT
Oscillator
Circuit
CDOUT
(Topt=-40 to 85
°
C, V
SS
=0v)
Min.
TYP.
1.15
PIN
Vclk
Item
Condition
MAX.
5.5
UNITS
V
Time Keeping
Voltage
Time Keeping
Current
CGout=CDout=5pF
I
DD
V
DD
=3V,
CE, SCLK, SIO, CLKC, INTR =0v
32KOUT=OFF
CGout=CDout=0pF
0.55
1.20
μ
A
Course (D)
It is necessary to select the crystal oscillator in the same manner as in Course (C) as well as correct errors in the
time count of each RTC in the same manner as in Course (B) by the method described in " P.32
Oscillation
Adjustment Circuit ".
*1) The CGOUT or/and CDOUT should have a
capacitance ranging from 0 to 6 pF.
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