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Real-time clock Product List and Ranking from 4 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Sep 17, 2025～Oct 14, 2025
This ranking is based on the number of page views on our site.

Real-time clock Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Sep 17, 2025～Oct 14, 2025
This ranking is based on the number of page views on our site.

  1. セイコーエプソン 新宿本店 Tokyo//Industrial Electrical Equipment
  2. 多摩デバイス Kanagawa//Electronic Components and Semiconductors
  3. null/null
  4. 4 PVJ Tokyo//Electronic Components and Semiconductors
  5. 4 オーエン Saitama//Electronic Components and Semiconductors
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Real-time clock Product ranking

Last Updated： Aggregation Period:Sep 17, 2025～Oct 14, 2025
This ranking is based on the number of page views on our site.

  1. Crystal oscillator built-in RTC module 'RX8111CE' セイコーエプソン 新宿本店
  2. Crystal oscillator built-in RTC module 'RX8901CE' セイコーエプソン 新宿本店
  3. Crystal oscillator built-in RTC module 'RA4000CE' セイコーエプソン 新宿本店
  4. RV-8803-C7 High Precision Real-Time Clock (RTC) 多摩デバイス
  5. 4 DTCXO integrated real-time clock module 'RA8900' セイコーエプソン 新宿本店

Real-time clock Product List

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DTCXO integrated real-time clock module 'RA8900'

DTCXO integrated real-time clock module 'RA8900'

Built-in temperature-compensated oscillator (DTCXO)! Series for automotive applications and series for consumer devices.

By utilizing our unique strengths in photolithography processing technology and circuit manufacturing technology that drives oscillators under optimal conditions, we have achieved high precision, compact size, and low current consumption (0.70µA Typ.). We offer two types of packages: the AEC-Q200 compliant automotive RA8900 series with the smallest CE package (3.2×2.5×1.0t Max. mm) compared to conventional products, and the RX8900 series for consumer devices with the SA package (10.1×7.4×3.3t Max.mm) that is size-compatible with existing products. This allows us to meet the demand for high precision in clocks and timing devices across a wide range of markets. Additionally, these products can also be used as high-precision oscillators (32.768kHz DTCXO). We adjust and guarantee frequency accuracy at the time of factory shipment, which can help improve your design efficiency and product quality. 【Features】 ○ For automotive: RA8900CE (3.2×2.5×1.0t) / RA8900SA (10.1×7.4×3.3t) ○ For consumer devices: RX8900CE (3.2×2.5×1.0t) / RX8900SA (10.1×7.4×3.3t) For more details, please contact us or download the catalog.

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Real-time clock module "RX8130CE"

Real-time clock module "RX8130CE"

Built-in backup charging control function! I2C-Bus interface module

Epson's real-time clock module (RTC) allows customers to achieve energy-saving solutions and time management without the need for circuit design or circuit matching. Additionally, the real-time clock module (RTC) can support various functions due to its multifunctionality. 【Features】 - Built-in 32.768kHz crystal oscillator (frequency accuracy adjusted) - Time and calendar functions, as well as alarm and timer functions - Reset function with delay: detects main power and releases reset output For more details, please contact us or download the catalog.

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Crystal oscillator built-in RTC module 'RX4901CE'

Crystal oscillator built-in RTC module 'RX4901CE'

Up to 32 timestamps can be recorded! Achieving long-term operation of clock calendar information and timestamps.

The "RX4901CE" is a high-precision, low-power consumption RTC module with an integrated crystal oscillator. It features a built-in 32.768 kHz digital temperature-compensated crystal oscillator (DTCXO). In addition to the basic functions of the RTC, such as time calendar, time alarm, and wake-up timer, it offers a rich set of features, including the ability to record timestamps for external or internal event occurrences up to 32 times. 【Overview】 ■ Built-in 32.768 kHz crystal oscillator (frequency accuracy adjusted) ■ Interface type: SPI-Bus interface 3-wire, 4-wire ■ Low power consumption: 240nA Typ./3V ■ Automatic power switching: Monitors main power and automatically switches to backup power ■ Time update interrupts: Every hour, every minute, every second *For more details, please refer to the PDF document or feel free to contact us.

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Crystal oscillator built-in RTC module 'RX8111CE'

Crystal oscillator built-in RTC module 'RX8111CE'

Built-in timestamp function with low power consumption! Capable of recording timestamps 8 times from 1 year to 1/256 seconds.

The "RX8111CE" is a low power consumption crystal oscillator with a built-in RTC module that features a timestamp function. With the power switching function, it can monitor the VDD voltage and automatically switch to backup power. Additionally, it includes various functions such as clock output, wake-up timer, and self-monitoring detection interrupts. 【Overview】 ■ Built-in 32.768kHz crystal oscillator (frequency accuracy adjusted) ■ Interface type: I2C-Bus interface ■ Low power consumption: 100nA Typ./3V ■ Automatic power switching: Monitors main power and automatically switches to backup power ■ Timestamp: Records timestamp 8 times (from year to 1/256 seconds) *For more details, please refer to the PDF document or feel free to contact us.

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Crystal oscillator built-in RTC module 'RX8804CE'

Crystal oscillator built-in RTC module 'RX8804CE'

High-precision digital temperature-compensated oscillator equipped! I2C-Bus interface RTC module

The "RX8804CE" is a real-time clock (RTC) module with a built-in crystal oscillator featuring a high-precision temperature-compensated oscillator (DTCXO) operating at 32.768kHz. It includes functions such as selectable clock output frequencies, timestamps, and time update interrupts, as well as various internal flags that can be output, such as voltage drop detection. It is recommended for use in handheld devices, outdoor equipment, industrial machinery, and more. 【Overview】 ■ Interface type: I2C-Bus ■ Selectable clock output frequencies: 32.768kHz, 1024Hz, 1Hz ■ Timestamp: Records one timestamp (from year to second) ■ Time update interrupt: Every minute, every second *For more details, please refer to the PDF document or feel free to contact us.

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RTC Real-Time Clock

RTC Real-Time Clock

All-in-one structure with built-in crystal oscillator, ultra-compact ceramic package.

All-in-one structure with built-in crystal oscillator Built-in CMOS output, 100% lead-free Ultra-compact ceramic package Ultra-low power consumption, I²C bus, supports 400kHz high-speed mode Time, calendar function, timer, alarm function 32.768/1024/32/1Hz Programmable frequency output

  • Company：PVJ
  • Price：Other
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[Use Case] Reducing Overall System Power Consumption with RTC Module

[Use Case] Reducing Overall System Power Consumption with RTC Module

By using a low power consumption RTC module, significant reduction in the system's power consumption can be achieved.

The Internet of Things (IoT) is expanding with a wealth of new applications, and there is an increasing need for monitoring and control capabilities. In many cases, as functionalities increase, power consumption also rises. This is where we begin a systematic check of the necessary power demand. Each functional block requires its maximum current during operation. Fortunately, it is not necessary to operate all functions at maximum performance all the time. The goal of power-saving design is to turn off everything unnecessary at any given time. Therefore, devices that are always on need to have very low power consumption. The real-time clock (RTC) must be always on to maintain time, so we suggest leveraging this. The latest RTC modules operate with very low power consumption (typically 50nA to 240nA). In addition to maintaining time information, RTC modules have the capability to periodically wake up the microcontroller. This can lead to a reduction of over 90% in overall system power consumption in many cases.

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Crystal oscillator built-in RTC module 'RX8901CE'

Crystal oscillator built-in RTC module 'RX8901CE'

High precision, low power consumption, built-in timestamp function! Real-time clock module.

The "RX8901CE" is an RTC (Real-Time Clock) module equipped with a 32.768kHz digital temperature-compensated crystal oscillator (DTCXO). In addition to the basic functions of the RTC, such as time calendar, time alarm, wake-up timer, and time update interrupt, it offers a wealth of features, including the ability to record the occurrence of external or internal events with timestamps up to 32 times. Furthermore, it enables long-term operation of clock calendar information and timestamps for various systems. [Overview] ■ Built-in 32.768 kHz crystal oscillator (frequency accuracy adjusted) ■ Interface type: I2C-Bus interface ■ Low power consumption: 240nA Typ./3V ■ Automatic power switching: Monitors the main power supply and automatically switches to backup power *For more details, please refer to the PDF document or feel free to contact us.

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Crystal oscillator built-in RTC module 'RA4000CE'

Crystal oscillator built-in RTC module 'RA4000CE'

High-precision temperature-compensated oscillator (DTCXO) equipped! RTC module suitable for automotive applications.

The "RA4000CE" is a real-time clock (RTC) module with a built-in crystal oscillator that features a high-precision temperature-compensated oscillator (DTCXO). In addition to enabling low-power operation, it complies with AEC-Q100, making it suitable for automotive applications. It is equipped with a rich set of features, including a time calendar circuit with automatic leap year correction from seconds to years, and a timestamp function that can record the occurrence of external or internal events and power detection status through self-monitoring, with the ability to record timestamps twice. 【Overview】 ■ Built-in 32.768 kHz crystal oscillator (frequency accuracy adjusted) ■ Wide operating temperature range: -40℃ to +125℃ ■ Interface method: SPI-Bus interface 3-wire, 4-wire ■ Low current consumption: 300nA Typ./3V ■ Timestamp: Timestamp recorded twice *For more details, please refer to the PDF document or feel free to contact us.

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Micro Crystal RTC Real-Time Clock

Micro Crystal RTC Real-Time Clock

Macro Crystal Corporation RTC Real-Time Clock

All-in-one structure with built-in crystal oscillator Built-in CMOS output, 100% lead-free Ultra-compact ceramic package Ultra-low power consumption, I²C bus, 400kHz high-speed mode support Time, calendar function, timer, alarm function 32.768/1024/32/1Hz Programmable frequency output

  • Company：PVJ
  • Price：Other
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RV-8803-C7 High Precision Real-Time Clock (RTC)

RV-8803-C7 High Precision Real-Time Clock (RTC)

Ultra-small real-time clock (RTC) module with high precision, low current consumption, and built-in crystal oscillator.

Specifications of the built-in <RV-8803-C7>: - Package size: 3.2×1.5×0.8mm (with built-in crystal oscillator) - Supply voltage: 1.5 to +5.5V - Current consumption: 0.24μA Typ. (+3.0V / +25℃) - Frequency deviation: ±1.5ppm or less (＠0 to +50℃) temperature compensated ±3.0ppm or less (＠-40 to +85℃) temperature compensated ±7.0ppm or less (＠+85 to +105℃) temperature compensated - Types of interrupt signals: - Repeating countdown timer - Alarm - Time update - External event input - External event input and timestamp function - Programmable clock output (32.768kHz to 1Hz) - Time information for 1/100 seconds, seconds, minutes, hours, days, weekdays, months, and years - Frequency offset resolution: 0.238ppm Typ.

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RV-3028-C7 Low Power Consumption Real-Time Clock (RTC)

RV-3028-C7 Low Power Consumption Real-Time Clock (RTC)

It is an ultra-low power consumption real-time clock (RTC) module with a power switching function and an integrated crystal oscillator, and it is also ultra-compact.

- Package size: 3.2×1.5×0.8mm (with built-in crystal oscillator) - Power supply voltage: 1.1 to +5.5V (in timekeeping mode) - Current consumption: 0.05μA Typ. (+3.0V / +25℃) (without power switching) 0.095μA Typ. (+3.0V / +25℃) (direct power switching) 0.115μA Typ. (+3.0V / +25℃) (level power switching) - Frequency deviation at room temperature: ±1.0ppm or less (+25℃) (without temperature compensation) - Automatic power switching function - Trickle charge function - Programmable clock output - Types of interrupt signals: - Repeating countdown timer - Alarm - Time update - External event input - Automatic power switching for backup power - Power-on reset - External event input and timestamp function - Password lock function - UNIX TIME function

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RV-8263-C7 Low Power Consumption Real-Time Clock (RTC)

RV-8263-C7 Low Power Consumption Real-Time Clock (RTC)

It is a simple, ultra-compact real-time clock (RTC) module with a built-in crystal oscillator.

● Package size: 3.2×1.5×0.8mm (with built-in XTAL) ● Built-in crystal oscillator / low power consumption / simple functionality / the most affordable RTC ● Interface: I2C (up to 400kHz) ● Package size: 3.2×1.5×0.8mm ● Power supply voltage: +0.9V to +5.5V ● Current consumption: 190nA Typ. (@+3.0V) ● Frequency deviation at room temperature: within ±20ppm (@+25℃) (Factory default value / excluding frequency changes due to reflow) ● Time information for seconds, minutes, hours, days, weekdays, months, and years ● Power switching function: None ● Main functions: - Repeating countdown timer function (4.096kHz to 1/60Hz timer clock source, multiplier = 1 to 255 can be set) (Can also be used as a pseudo watchdog timer) - Alarm function (seconds, minutes, hours, weekdays, days) - Time update interrupt signal (every minute or every 30 seconds) - Programmable clock output (32.768kHz/16.384kHz/8.192kHz/4.096kHz/2.048kHz/1.024kHz/1Hz and output off)

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RV-3032-C7 High Precision Real-Time Clock (RTC)

RV-3032-C7 High Precision Real-Time Clock (RTC)

High-precision temperature compensation, power switching function, low current consumption, multifunctional real-time clock module with temperature sensor function.

Specifications of <RV-3032-C7> - Package size: 3.2×1.5×0.8mm (with built-in crystal oscillator) - Supply voltage: 1.3 to +5.5V (in timekeeping mode) - Current consumption: 0.16μA Typ. (+3.0V / +25℃) (no power switching) 0.21μA Typ. (+3.0V / +25℃) (direct power switching) 0.23μA Typ. (+3.0V / +25℃) (level power switching) - Frequency deviation: within ±2.5ppm (-40 to +85℃) - Automatic power switching function - High-resolution temperature sensor function - Trickle charge function (3-stage charging voltage adjustment) - Programmable clock output (kHz and MHz range) - Types of interrupt signals: - Repeating countdown timer - Alarm - Time update - External event input - Automatic power switching for backup power - Power-on reset - High temperature threshold alarm - Low temperature threshold alarm - External event input and timestamp - Password lock function

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