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參數(shù)資料
| 型號(hào)： | R2033T |
| 廠商： | Ricoh Co., Ltd. |
| 英文描述： | 3 wire interface Real-Time Clock ICs |
| 中文描述： | 3線接口實(shí)時(shí)時(shí)鐘芯片 |
| 文件頁數(shù)： | 3/50頁 |
| 文件大?。?/td> | 542K |
| 代理商： | R2033T |
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R2033K/T
PIN DESCRIPTION
3
Symbol
CE
Item
Description
Chip enable
Input
The CE pin is used for interfacing with the CPU. Should be held high to
allow access to the CPU. Incorporates a pull-down resistor. Should be
held low or open when the CPU is powered off. Allows a maximum input
voltage of 5.5v regardless of supply voltage.
The SCLK pin is used to input clock pulses synchronizing the input and
output of data to and from the SIO pin. Allows a maximum input voltage of
5.5v regardless of supply voltage.
The SIO pin is used to input and output data intended for writing and reading
in synchronization with the SCLK pin. CMOS input / output.
The INTR pin is used to output alarm interrupt (Alarm_W) and alarm
interrupt (Alarm_D) and output periodic interrupt signals to the CPU.
Disabled at power-on from 0V. N-channel open drain output. Allows a
maximum pull-up voltage of 5.5v regardless of supply voltage.
The 32KOUT pin is used to output 32.768-kHz clock pulses. The pin is
CMOS push-pull output. The output is disabled and held “L” when CLKC
pin is 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 “L” when this pin is set to “L” or open.
Incorporated pull down register.
The OSCIN and OSCOUT pins are used to connect the 32.768-kHz crystal
oscillator (with all other oscillation circuit components built into the
R2033K/T).
The VDD pin is connected to the power supply. The VSS pin is grounded.
SCLK
Serial Clock
Input
SIO
Serial Input /
Output
Interrupt
Output
INTR
32KOUT
32kHz Clock
Output
CLKC
Clock Control
OSCIN
OSCOUT
Oscillation
Circuit
Input / Output
Positive/Negative
Power
Supply Input
VDD
VSS
(VSS)
Please connect to ground line, or do not connect any lines.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| R2033T-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:3 wire interface Real-Time Clock ICs |
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