參數(shù)資料
型號(hào)： RS5C372A
廠(chǎng)商： RICOH COMPANY LTD
元件分類(lèi)： XO, clock
英文描述： I2C bus SERIAL INTERFACE REAL-TIME CLOCK ICs
中文描述： 0 TIMER(S), REAL TIME CLOCK, PDSO8
封裝： SSOP-8
文件頁(yè)數(shù)： 30/59頁(yè)
文件大小： 442K
代理商： RS5C372A
RS5C372A/B
26
USAGES
1. Interfacing with the CPU
The RS5C372A/B employ the I
2
C bus system to be connected to the CPU via 2-wires. Connection and transfer sys-
tem of I
2
C bus are described in the following sections.
Note
I
2
C bus is a trademark of PHILIPS ELECTRONICS N.V.
1.1 Connection of I
2
C bus
2-wires, SCL and SDA which are connected to I
2
C bus are used for transmit clock pulses and data respectively.
All ICs that are connected to these lines are designed that will be not be clamped when a voltage beyond supply volt-
age is applied to input or output pins. Open drain pins are used for output. This construction allows communication
of signals between ICs with different supply voltages by adding a pull-up resistor to each signal line as shown in the
figure below. Each IC is designed not to affect SCL and SDA signal lines when power to each of these is turned off
separately.
V
DD
1
V
DD
2
V
DD
3
V
DD
4
SCL
SDA
R
P
R
P
Microcontroller
RS5C372A/B
Other
Peripheral
Device
*
1) For data interface, the following conditions must be met:
V
DD
4
≥
V
DD
1
V
DD
4
≥
V
DD
2
V
DD
4
≥
V
DD
3
*
2) When the master is one, the microcontroller is ready for
driving SCL to “H” and R
P
of SCL may not be required.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
RS5C372B 制造商:RICOH 制造商全稱(chēng):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(chēng):RICOH electronics devices division 功能描述:I2C-bus Serial Interface Real Time Clock (8pin SSOP)
RS5C372B-E2 制造商:RICOH 制造商全稱(chēng):RICOH electronics devices division 功能描述:I2C-bus Serial Interface Real Time Clock (8pin SSOP)
RS5C373A 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:Real-Time Clock
RS5C4FC 制造商:Dialight 功能描述:
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