參數(shù)資料
型號: RX4575LC
英文描述: Real Time Clock Module
中文描述: 實時時鐘模塊
文件頁數(shù): 1/2頁
文件大?。?/td> 148K
代理商: RX4575LC
June 6, 2006
Epson Toyocom Announces RX-4575LC Real Time Clock Module with
Chattering-Free*
1
Input Detection Port
Epson Toyocom Corporation, the leader in quartz devices, today announced the development of
a new real time clock module with a built-in crystal unit. The RX-4575LC contains a feature
that generates an interrupt signal when an external input signal is detected. Samples will begin
shipping in June 2006.
As more features are packed into small electronic devices, the main CPU and controller chips in
these devices are running out of I/O ports, forcing designers to choose between a variety of
signals. Epson Toyocom developed a multi-function real time clock module with two chattering-
free inputs to relieve this kind of hardware resource shortage. The addition of these inputs
simplifies the circuit design process
by removing the need for an external chattering elimination
circuit, and by enabling I/O ports to detect different kinds of signals.
Input detection port features
Input signal detection: Select and use either hardware interrupt signal generation or
serial-based software monitoring, depending on the system
Pull-up and pull-down resistance built into each port: Can be disconnected as required
Variable chattering absorption time: Set input signal detection responsiveness to a high
level of accuracy
Time-out after signal detection: A power-saving feature that automatically disconnects
built-in resistance after input signal detection
Main specifications
Item
RX-4575LC specifications
Operating power-supply voltage
1.6V
to
5.5V
Standby current consumption
0.35
μA
(Typ.)
/
3V
Chattering free variable rate
8 ms, 31 ms, 62 ms, 125 ms
Pull-up/down resistance
60 k
(Typ.) /
3V
Dimensions
3.6
×
2.8
×
1.2 mm (12-pin VSOJ)
Three-line serial interface
Built-in 32.768 kHz crystal unit: 5
±
23
×
10
-6
frequency stability
Automatic leap year correction, full calendar clock
Day, hour, minute alarm 12-bit timer interrupt function
Two input detection terminals
Two interrupt output terminals
OE-enabled 32.768 kHz CMOS output
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
RX-4575LC 制造商:EPSONTOYOCOM 制造商全稱:Epson ToYoCom 功能描述:SERIAL INTERFACE REAL TIME CLOCK MODULE
RX-4581NB 制造商:Epson Toyocom Corporation 功能描述:32.768kHz 0.4uA@3V(Typ.) 1.6 to 5.5V 6.3~4.8~1.3mm +85 -40 5}23ppm@+25/3.0V 4VAC^[tF[X 6.3mm 4.8mm 1.3mm 制造商:Epson Toyocom 功能描述:RTC module,4-Wire Serial,Alarm,128b SRAM