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參數(shù)資料
| 型號： | R2025D |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | XO, clock |
| 英文描述： | High precision I2C-Bus Real-Time Clock Module |
| 中文描述： | REAL TIME CLOCK, DSO20 |
| 封裝： | 6.10 X 5 MM, 1.30 MM HEIGHT, SON-22/20 |
| 文件頁數(shù)： | 3/47頁 |
| 文件大?。?/td> | 524K |
| 代理商： | R2025D |
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R2025S/D
3
PIN DESCRIPTION
Symbol
SCL
Item
Description
Serial
Clock Line
The SCL pin is used to input clock pulses synchronizing the input and
output of data to and from the SDA pin. Allows a maximum input
voltage of 5.5 volts regardless of supply voltage.
The SDA pin is used to input or output data intended for writing or
reading in synchronization with the SCL pin. Up to 5.5v beyond VDD
may be input. This pin functions as an N-ch open drain output.
The /INTRA pin is used to output alarm interrupt (Alarm_D) and output
periodic interrupt signals to the CPU signals. Disabled at power-on
from 0V. N-ch. open drain output.
The /INTRA pin is used to output alarm interrupt (Alarm_W) and output
periodic interrupt signals to the CPU signals. Disabled at power-on
from 0V. N-ch. open drain output.
The 32KOUT pin is used to output 32.768-kHz clock pulses. Enabled
at power-on from 0 volts. CMOS output. The output is disabled and
held “L” when CLKC pi set to “L” or open, or certain register setting.
This pin is enabled at power-on from 0v.
The CLKC pin is used to control output of the 32KOUT pin. The clock
output is disabled and held low when the pin is set to low or open.
Incorporates a pull-down resistor.
The VDD pin is connected to the power supply.
The VSS pin is grounded.
SDA
Serial
Data Line
/INTRA
Interrupt
Output A
/INTRB
Interrupt
Output B
32KOUT
32K Clock
Output
CLKC
Clock control
input
VDD
VSS
Positive Power
Supply Input
Negative Power
Supply Input
Test input
No Connection
VPP
N.C.
This pin is power pin for testing in the factory. Don’t connect to any lines.
These pins are not connected to internal IC chip.
In R2025D (SON22), N.C. pins from 14 pin to 22 pin are connected
together internally. Never connect these pins to any lines, or connect to
VDD or VSS. And never connect different voltage level lines each other.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| R2025S | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:High precision I2C-Bus Real-Time Clock Module |
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