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...
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...
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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 |
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. |