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RS5C372A Datasheet (PDF) - RICOH electronics devices division

RS5C372A Datasheet PDF - RICOH electronics devices division
Part No. RS5C372A
Download  RS5C372A Click to view

File Size   442.44 Kbytes
Page   59 Pages
Manufacturer  RICOH [RICOH electronics devices division]
Direct Link  http://www.ricoh.com
Logo RICOH - RICOH electronics devices division
Description I2C bus SERIAL INTERFACE REAL-TIME CLOCK ICs

RS5C372A Datasheet (PDF)

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RS5C372A Datasheet PDF - RICOH electronics devices division

Part No. RS5C372A
Download  RS5C372A Click to view

File Size   442.44 Kbytes
Page   59 Pages
Manufacturer  RICOH [RICOH electronics devices division]
Direct Link  http://www.ricoh.com
Logo RICOH - RICOH electronics devices division
Description I2C bus SERIAL INTERFACE REAL-TIME CLOCK ICs

RS5C372A Datasheet (HTML) - RICOH electronics devices division

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RS5C372A Product details

OUTLINE
The RS5C372A 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.

FEATURES
• Time keeping voltage: 1.45V to 6.0V
• Lowest supply current: 0.5µA TYP. (0.9µA MAX.) : 3V (25˚C)
    (1.0µA MAX.) : 3V (–40 to +85˚C)
• Connected to the CPU via only 2-wires
    (I2C 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) (INTRA, INTRB)
• Two systems of alarm functions
    (days of the week, hours, and minutes) (INTRA, INTRB)
• Oscillation halt sensing to judge internal data validity
• Clock output of 32.768kHz (32.000kHz)
    (output controllable via a register) ... (Nch. open drain 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 (CG, CD) incorporated
• High precision time trimming circuit
• Oscillator of 32.768kHz or 32.000kHz may be used
• CMOS logic
• Package: 8pin SSOP

APPLICATIONS
• Communication devices (multi function phone, portable phone, PHS or pager)
• OA devices (fax, portable fax)
• Computer (desk-top and mobile PC,
    portable word-processor, PDA, electric note or video game)
• AV components (portable audio unit, video camera,camera,
    digital camera or remote controller)
• Home appliances (rice cooker, electric oven)
• Other (car navigation system, multi-function watch)



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