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參數(shù)資料
| 型號： | RS5C348A-E2 |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | XO, clock |
| 英文描述： | Real-Time Clock |
| 中文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO10 |
| 封裝： | 6.40 X 3.50 MM, 1.25 MM HEIGHT, 0.5 MM PITCH, SSOP-10 |
| 文件頁數(shù)： | 44/53頁 |
| 文件大?。?/td> | 452K |
| 代理商： | RS5C348A-E2 |
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41
R
×
5C348A/B
6.4 Connection of CE Pin
Connection of the CE pin requires the following considerations:
1) The CE pin is configured to enable the oscillation halt sensing circuit only when driven low. As such, it should be
driven low or open at power-on from 0 volts.
2) The CE pin should also be driven low or open immediately upon the host going down (see “1.5 Considerations in
Reading and Writing Time Count Data”).
3) The reading function should be disrupted when the CE signal goes to “l(fā)ow” during read cycle. While, the upper 4
bits of the data might be written to the inner shift register when the CE signal goes to “l(fā)ow” during write cycle.
(Because the writing function is executed 4 bits by 4 bits.) In either case, after the CE signal returns to “High”,
no trouble will occur in the next read or write cycle.
I/O
CONTROL
SCLK
SI
SO
CE
2
4
3
7
Lower limit operating voltage
for the CPU
Backup voltage
0.2
×
V
DD
MIN. 0
μ
s
MIN. 0
μ
s
MIN. 0
μ
s
V
DD
CE
CPU
R
×
5C348A/B
Peripheral IC
CE
CE
SCLK
SIO
SCLK
SI
SO
CE0
CE1
SCLK
DATA
6.5 Connection With 3-Wire Serial Interface Bus
To connect the R
×
5C348A/B with 3-wire serial interface bus, shorten the SI and SO pins and connect them to the
data line as shown in the figure below.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| RS5C348B-E2 | Real-Time Clock |
| RT1710B6 | LVDS & LVPECL FPGA Terminator RoHS Compliant Parts Available |
| RT1710B7 | LVDS & LVPECL FPGA Terminator RoHS Compliant Parts Available |
| RT1720B7 | LVDS & LVPECL FPGA Terminator RoHS Compliant Parts Available |
| RT1721B6 | 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 |
|---|---|
| RS5C348B | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:4-WIRE SERIAL INTERFACE |
| RS5C348B-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:Real-Time Clock |
| RS5C372A | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:I2C bus SERIAL INTERFACE REAL-TIME CLOCK ICs |
| RS5C372B | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:I2C-bus Serial Interface Real Time Clock (8pin SSOP) |
| RS5C372B-E1 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:I2C-bus Serial Interface Real Time Clock (8pin SSOP) |
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