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參數(shù)資料
| 型號： | RS5C316A |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | XO, clock |
| 英文描述： | ULTRA-COMPACT SERIAL ALARM REAL-TIME CLOCK ICs |
| 中文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
| 封裝： | 0.65 MM PITCH, SSOP-8 |
| 文件頁數(shù)： | 24/38頁 |
| 文件大小： | 288K |
| 代理商： | RS5C316A |
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RS5C316A/B
20
1) When applying an external input of clock pulses (32.768kHz) to the OSCIN pin:
DC coupling............Prohibited due to mismatching input levels.
AC coupling.............Permissible except that unpredictable results may occur in oscillator halt sensing due
to possible sensing errors caused by noises, etc.
2) Avoid using the oscillator output of the RS5C316 (from the OSCOUT pin) to drive any other IC for the pur-
pose of ensuring stable oscillation.
1) Mount the crystal oscillators and C
G
in the closest possible position to the IC.
2) Avoid laying any signal or power line close to the oscillation circuit (particularly in the area marked with
“
←
A
→
” in the above figure).
3) Apply the highest possible insulation resistance between the OSCIN or OSCOUT pin and the PCB.
4) Avoid using any long parallel line to wire the OSCIN or OSCOUT pin.
5) Take extreme care not to cause condensation, which leads to various problems such as oscillation halt.
6. Configuration of Oscillating Circuit
R
F
R
D
C
D
OSCIN
OSCOUT
32kHz
VDD
VDD
CG
VSS
A
Typical external device:
X'tal :
32.768kHz
(R
1
=30k
TYP.)
(C
L
=6pF to 8pF)
C
G
=8pF to 20pF
Typical values of internal devices
R
F
=15M
(TYP.)
R
D
=60k
(TYP.)
C
D
=10pF (TYP.)
Considerations in Mounting Components Surrounding Oscillating Circuit
Other Relevant Considerations
*
)
The oscillation circuit is driven at a constant voltage of about 1.5V relative to the Vss level.
Consequently, it generates a wave form having a peak-to-peak amplitude of about 1.5V on the positive side of the Vss level.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| RS5C316B | ULTRA-COMPACT SERIAL ALARM REAL-TIME CLOCK ICs |
| RS5C317A | ULTRA-COMPACT HIGH PERFORMANCE SERIAL REAL-TIME CLOCK ICs |
| RS5C317B | ULTRA-COMPACT HIGH PERFORMANCE SERIAL REAL-TIME CLOCK ICs |
| RS5C321A | ULTRA-COMPACT SERIAL REAL-TIME CLOCK ICs WITH 32.768kHz |
| RS5C321B | ULTRA-COMPACT SERIAL REAL-TIME CLOCK ICs WITH 32.768kHz |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RS5C316A/B | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:real-time clock ICs |
| RS5C316B | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:ULTRA-COMPACT SERIAL ALARM REAL-TIME CLOCK ICs |
| RS5C317A | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:ULTRA-COMPACT HIGH PERFORMANCE SERIAL REAL-TIME CLOCK ICs |
| RS5C317A/B | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:real-time clock ICs |
| RS5C317B | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:ULTRA-COMPACT HIGH PERFORMANCE SERIAL REAL-TIME CLOCK ICs |
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