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參數(shù)資料
| 型號： | RS5C372A |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 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 |
| 文件頁數(shù)： | 11/59頁 |
| 文件大小： | 442K |
| 代理商： | RS5C372A |
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I
2
C bus SERIAL INTERFACE
REAL-TIME CLOCK IC
RS5C372B
7
OUTLINE
The RS5C372B is a CMOS type real-time clock which is connected to the CPU via 2-wires and capable of serial
transmission of clock and calendar data to the CPU.
The RS5C372B can generate various periodic interrupt clock pulses lasting for long period (one month), and
alarm interrupt can be made by days of the week, hours, and minutes by two incorporated systems. Since an oscilla-
tion circuit is driven at a constant voltage, it undergoes fluctuations of few voltage and consequently offers low cur-
rent consumption (TYP. 0.5μA at 3V). It also provides an oscillator halt sensing function applicable for data valida-
tion at power-on and other occasions and 32-kHz clock output for an external micro computer. (CMOS output) The
product also incorporates a time trimming circuit that adjusts the clock with higher precision by adjusting any
errors in crystal oscillator frequencies based on signals from the CPU. The crystal oscillator may be selected from
32.768kHz or 32.000kHz types. Integrated into an ultra compact and ultra thin 8 pin SSOP package, the RS5C372B
is the optimum choice for equipment requiring small sized and low power consuming products.
FEATURES
Time keeping voltage: 1.45V to 6.0V
Lowest supply current: 0.5μA TYP. (0.9μA MAX.) : 3V (25C)
(1.0μA MAX.) : 3V (–40 to +85C)
Connected to the CPU via only 2-wires (I
2
C bus Interface, MAX.400kHz, address 7bit)
A clock counter (counting hours, minutes, and seconds) and a calendar counter (counting leap years, years,
months, days, and days of the week) in BCD codes
Interrupt to the CPU (period of one month to one second, interrupt flag, interrupt halt function) (INTR)
Two systems of alarm functions (days of the week, hours, and minutes) (INTR)
Oscillation halt sensing to judge internal data validity
Clock output of 32.768kHz (32.000kHz) (output controllable via a register) ...(CMOS output)
Second digit adjustment by ±30 seconds
Automatic leap year recognition up to the year 2099
12-hour or 24-hour time display selectable
Oscillation stabilizing capacity (C
G
, C
D
) incorporated
High precision time trimming circuit
Oscillator of 32.768kHz or 32.000kHz may be used
CMOS logic
Package: 8pin SSOP
Note
· I
2
C bus is a trademark of PHILIPS ELECTRONICS N.V.
· Purchase of I
2
C components of Ricoh Company, Ltd. conveys a license under the Philips I
2
C Patent Rights to
use these components in an I
2
C system, provided that the system comforms to the I
2
C Standard Specifica-
tion as defined by Philips.
相關PDF資料 |
PDF描述 |
|---|---|
| RS5C372B | I2C-bus Serial Interface Real Time Clock (8pin SSOP) |
| RS5C372B-E1 | I2C-bus Serial Interface Real Time Clock (8pin SSOP) |
| RS5C372B-E2 | I2C-bus Serial Interface Real Time Clock (8pin SSOP) |
| RS5C62 | REAL-TIME CLOCK |
| RSBL-9-S | Using Permanent Magnet, High sensitivity Two Poles Signal Relay RSB RELAYS |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 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) |
| RS5C372B-E2 | 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) |
| RS5C373A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Real-Time Clock |
| RS5C4FC | 制造商:Dialight 功能描述: |
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