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Zest_RTC_RV-8803-C7

Overview

The Zest_RTC_RV-8803-C7 is an electronics development board for 6TRON open source platform built around the RV-8803-C7 Real-Time-Clock from Micro Crystal.

The RV-8803-C7 is a high accuracy, ultra low power Real-Time-Clock Module with embedded 32.768 kHz Crystal.

The Zest_RTC_RV-8803-C7 includes a CR1025 battery header to maintain time during power off. Autonomy > 5 years.

Zest_RTC_RV-8803-C7

Specifications

RTC_RV-8803-C7:

  • Low power consumption: 240 nA @ 3 V.
  • Wide operating voltage range: 1.5 V to 5.5 V.
  • Time accuracy, temperature compensated:
    • -40°C to +85°C, ±3 ppm.
    • +85°C to +105°C, ±7 ppm.
  • User programmable offset value.
  • Provides year, month, date, weekday, hours, minutes, seconds and 100th seconds.
  • Automatic leap year correction: 2000 to 2099.
  • Timer, alarm and external event input with time stamp.
  • Clock output frequencies: 32.768 kHz, 1024 Hz, 1 Hz.
  • I2C (@0x32) interface
FeatureDetails
Connectivity80-pin 6TRON header
Board size80 x 39 mm
Power Supply3.3V
CategoryZest_RTC

Block Diagram

The graphics below gives an overview of the board features and connections.

Zest_RTC_RV-8803-C7

80-pin 6TRON header

This table shows how the pinout on Zest_RTC_RV-8803-C7 corresponds to the pinout on the 6TRON BUS connector (the latter shown in the two middle columns).

Description6TRON functionPin numberPin number6TRON functionDescription
-VJACK12VJACK-
-VJACK34VJACK-
-VHV56VHV-
-VHV78VHV-
Interrupt (alternate)DIO8910VIN_EN-
Interrupt (alternate)DIO71112DIO9-
Clock output (alternate)DIO61314DIO10-
-MD1516DIO11-
Clock output (alternate)DIO51718DIO12-
GroundGND1920GNDGround
GroundGND2122GNDGround
-VIN2324VIN-
-VIN2526VIN-
-VB_EN2728DIO13-
-VB_OUT2930DIO14-
-DAC13132DIO15-
-ADC43334DIO16-
-ADC33536DIO17-
-ADC23738DIO18-
-ADC13940GND-
-EXT_NRST4142GND-
-DIO44344VREFPower supply
Clock outputDIO34546DIO19-
InterruptDIO24748DIO20-
-DIO14950DIO21-
-WKUP5152DIO22-
-ICAPT5354DIO23-
-PWM35556DIO24-
-PWM25758DIO25-
-PWM15960DIO26-
-SPI1_SS6162DIO27-
-SPI1_SCK6364DIO28-
-SPI1_MISO6566DIO29-
-SPI1_MOSI6768DIO30-
-UART1_TX6970DIO31-
-UART1_RX7172DIO32-
I2C DataI2C1_SDA7374DIO33-
I2C ClockI2C1_SCL7576DIO34-
-CAN1_TX7778DIO35-
-CAN1_RX7980DIO36-

Software Support

The Zest_RTC_RV-8803-C7 provides a demo example developed using MBed Os. The board can run on Zest Core development boards.

Environmental impact

The Eco score of the Zest_RTC_RV-8803-C7 is expressed in points representing the environmental impact of an average European per year.

Zest_RTC_RV-8803-C7

Zest_RTC_RV-8803-C7

Eco-score details

BOM

Componentdataunit
Passive electronic component0,0024g
Active electronic component0,06g
LED0,00g
Other component0,00g
Connectors Switchs2,85g
Logique type integrated circuit0,0114g
Memory type integrated circuit0,00g
PCB3120mm²

Consumption

Low voltage electricity voltage France
Current20mA
Supply voltage5V
Autonomy100h
% use75%
Power0,0075kWh

Ressources