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RV5C387A

Features: · Timekeeping supply voltage ranging from 1.45 to 5.5V· Low power consumption 0.35mA TYP (0.8mA MAX) at VDD=3V· Only two signal lines (SCL and SDA) required for connection to the CPU. ( I2C-Bus Interface, 400kHz at VDD³2.5V, address7bit)· Time counters (counting hours, minutes, and...

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SeekIC No. : 004480251 Detail

RV5C387A: Features: · Timekeeping supply voltage ranging from 1.45 to 5.5V· Low power consumption 0.35mA TYP (0.8mA MAX) at VDD=3V· Only two signal lines (SCL and SDA) required for connection to the CPU. ( I...

RV5C387A Data Sheet

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Part Number:
RV5C387A
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

·  Timekeeping supply voltage ranging from 1.45 to 5.5V
·  Low power consumption  0.35mA TYP (0.8mA MAX) at VDD=3V
·  Only two signal lines (SCL and SDA) required for connection to the CPU. 
     ( I2C-Bus Interface, 400kHz at VDD³2.5V, address7bit)
·  Time counters (counting hours, minutes, and seconds) and calendar counters (counting years, months, days,
     and weeks) (in BCD format)
·  1900/2000 identification bit for Year 2000 compliance
·  Interrupt circuit configured to generate interrupt signals (with interrupts ranging from 0.5 seconds to 1 month)
     to the CPU and provided with an interrupt flag and an interrupt halt
·  2 alarm interrupt circuits (Alarm_W for week, hour, and minute alarm settings and Alarm_D for hour and
     minute alarm settings)
·  32-kHz clock circuit (N-ch open-drain output)
     Designed to disable 32-kHz clock output in response to a command from the host computer.
·  Oscillation halt sensing circuit which can be used to judge the validity of internal data
·  Supply voltage monitoring circuit with two supply voltage monitoring threshold settings
·  Automatic identification of leap years up to the year 2099
·  Selectable 12-hour and 24-hour mode settings · Built-in oscillation stabilization capacitors (CG and CD)
·  High precision oscillation adjustment circuit
·  CMOS process   · Ultra-compact SSOP10G


Pinout

Connection Diagram


Specifications

Symbol Item Pin Name Description Unit
VDD Supply Voltage   -0.3 to +6.5 V
VI Input Voltage SCL, SDA -0.3 to +6.5 V
VO Output Voltage 1 32KOUT, SDA, /INTRA,
/INTRB, /INTRC		 -0.3 to +6.5 V
Output Voltage 1
PD Power Dissipation Topt = 25°C 300 mW
Topt Operating Temperature   -40 to +85 °C
Tstg Storage Temperature   -55 to +125 °C



Description

Symbol Item Description
SCL 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.
SDA Serial
Data Line		 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 Nch open drain output.
/INTRA Interrupt
Output A		 The /INTRA pin is used to output periodic interrupt signals to the CPU and
alarm interrupt (Alarm_D) signals. Disabled at power-on from 0 volts. Nch.
open drain output.
/INTRB Interrupt
Output B		 The /INTRB pin is used to output alarm interrupt (Alarrm_W) signals to the
CPU. Disabled at power-on from 0 volts. Nch. open drain output.
/INTRC Interrupt
Output C		 The /INTRC pin is used to output alarm interrupt (Alarm_D) signals to the
CPU. Disabled at power-on from 0 volts. Nch. open drain output.
32KOUT 32kHz Clock
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 if the CLKC pin
is set to Low or open.
OSCIN
OSCOUT		 Oscillation
Circuit
Input / Output		 The OSCIN and OSCOUT pins are used to connect the 32.768-kHz crystal
oscillator (with all other oscillation circuit components built into the
RV5C386A).
VDD
VSS		 Positive Power
Supply Input
Negative Power
Supply Input		 The VDD pin is connected to the power supply.
The VSS pin is grounded.



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