- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384890 > RS5C321B (RICOH COMPANY LTD) ULTRA-COMPACT SERIAL REAL-TIME CLOCK ICs WITH 32.768kHz PDF資料下載
參數(shù)資料
| 型號： | RS5C321B |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | XO, clock |
| 英文描述： | ULTRA-COMPACT SERIAL REAL-TIME CLOCK ICs WITH 32.768kHz |
| 中文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
| 封裝： | 0.65 MM PITCH, SSOP-8 |
| 文件頁數(shù)： | 24/33頁 |
| 文件大?。?/td> | 252K |
| 代理商： | RS5C321B |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁當(dāng)前第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁
RS5C321A/B
20
8. Typical Power Supply Circuit
1) Connect the capacitance of the oscillation circuit to the Vss pin.
2) Mount the high-and low-frequency by-pass capacitors in paral-
lel and very close to the RS5C321.
3) Connect the pull-up resistor of the 32KOUT pin to two differ-
ent positions depending on whether the resistor is in use dur-
ing battery back-up.
When not in use during battery back-up
...........Position A in the left figure
When in use during battery back-up
...........Position B in the left figure
4) Timing of power-on, power-off and CE pin refer to following figure.
5) When a diode are in use in place of the components surround-
ed by dotted lines, note that applying voltage to any input pins
should be less than the rating of V
DD
+0.3V by using of schot-
tky diode.
OSCIN
OSCOUT
VDD
RS5C321
VSS
B
A
System
supply
voltage
32KOUT
C
0V
VDD
CE
D
0.2V
DD
MIN. 0
μ
s
MIN. 0
μ
s
MIN. 0
μ
s
C, D, E: Minimum operating voltage for CPU
0.2V
DD
0.2V
DD
Battery voltage
System supply voltage
E
9. Oscillation Frequency Adjustment
9.1 Oscillation Frequency Measurement
1) After initial power-on (XSTP=1), 32KOUT pin outputs
32.768kHz clock pulse, which is measured with a fre-
quency counter.
2) Ensure that the frequency counter has more than six
digits (on the order of 1 ppm).
3) Place the C
G
between the OSCIN pin and the VSS lev-
el and pull up the 32KOUT pin output to the VDD.
32KOUT
OSCOUT
OSCIN
VDD
CE
VSS
32.768kHz
+5V or +3V
Frequency
counter
C
G
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| RS5C338A-E2 | DIODE ZENER SINGLE 500mW 2.4Vz 0.05mA-Izt 0.05 2uA-Ir 1 SOD-123 3K/REEL |
| RS5C338A | 3-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION |
| RS5C348A-E2 | Real-Time Clock |
| RS5C348B-E2 | Real-Time Clock |
| RT1710B6 | LVDS & LVPECL FPGA Terminator RoHS Compliant Parts Available |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RS5C338A | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:3-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION |
| RS5C338A-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:3-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION |
| RS5C348A | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:4-WIRE SERIAL INTERFACE |
| RS5C348A-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:Real-Time Clock |
| RS5C348B | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:4-WIRE SERIAL INTERFACE |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。