SJK: High-precision oscillators & filters for global tech industries.
sjk@q-crystal.com+86 755 8835 2869
JXR131 RTC Module
32.768KHz/1024Hz/32Hz/1Hz output/ Size: 3.2×2.5×1.55mm
• 32.768KHz/1024Hz/32Hz/1Hz output
• Supports I²C-Bus's high-speed mode (Up to 400 kHz)
• Interface voltage range: 1.5V~5.5V
• Wide time-keeping voltage range: 1.1V ~ 5.5V
• Low current power consumption: 0.7μA@3V(Typ)
• Operating Temperature range: -40°C~125°C
• 32.768KHz/1024Hz/32Hz/1Hz output
• Supports I²C-Bus's high-speed mode (Up to 400 kHz)
• Interface voltage range: 1.5V~5.5V
• Wide time-keeping voltage range: 1.1V ~ 5.5V
• Low current power consumption: 0.7μA@3V(Typ)
• Operating Temperature range: -40°C~125°C
5.0
design customization
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Please fill out the form below to request a quote or to request more information about us. please be as detailed as possible in your message, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
Key Features
Compact mini package (3.2×2.5×1.55mm), ultra-small size to save PCB space for compact electronic designs Multiple clock outputs available: 32.768KHz, 1024Hz, 32Hz and 1Hz, meeting diversified timing demands Supports I²C-Bus high-speed mode up to 400 kHz, enabling fast and stable data communication Wide interface voltage range: 1.5V ~ 5.5V, compatible with mainstream circuit power supply solutions Ultra-wide time-keeping voltage range: 1.1V ~ 5.5V, ensuring continuous timing under low-voltage conditions Extremely low power consumption: typical current is only 0.7μA @ 3V, ideal for battery-powered devices Wide operating temperature range from -40°C to 125°C, delivering stable performance in harsh environments High timing accuracy and excellent long-term stability, reliable for continuous time recording Standard SMT package for easy automated assembly and mass production RoHS compliant and lead-free, conforming to global environmental protection standardsStandard Specifications
| Pin Name | I/O Type | Function Description |
| NC | - | This pin is not connected to the internal IC |
| SCL | IN | This is the serial clock input pin for I²C Bus communications |
| SDA | INPUT | Serial data input and output pin |
| FOUT | OUTPUT | This is the C-MOS output pin with output control provided via the FOE pin |
| FOE | IN | Controls the FOUT output (Note: The description in the original image for this pin is identical to SCL, likely a typo) |
| INTN | OUTPUT | The output port of the Interrupt, N-ch open-drain output |
| VSS | GND | Power grounding terminal |
| VDD | POWER | This pin is connected to a positive power supply |
| NC | - | This pin is not connected to the internal IC |
| VBAT | POWER | This is the power supply pin for backup battery |
| Item | Symbol | Condition | Min. | Typ. | Max. | Unit |
| Operating supply voltage | VDD | - | 1.5 | 3.0 | 5.5 | V |
| Clock supply voltage | VCLK | - | 1.0 | 3.0 | 5.5 | V |
| Operating temperature | Ta | - | -40 | +25 | +125 | °C |
| Item | Symbol | Condition | Rating | Unit |
| Frequency tolerance | Δf/f | Ta = +25 °C, VDD = 3.0 V | 5 ± 23 | ×10⁻⁶ |
| Oscillation start-up time | tSTA | VDD = 1.8V to 5.5V | 2 (Max.) | s |
Application scenarios
Automotive Electronic Modules
Battery-Powered Portable Devices
Data Loggers
Industrial Control Equipment
IoT Devices
Real-Time Clock Systems
Smart Home Devices
Wearable Electronics
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Founded in 1989, SJK specializes in the manufacturing of crystal resonators and oscillators. With extensive experience in miniaturization, high precision, and low power consumption, our components are widely used across multiple industries.
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Tel: +86 755 8835 2869
Email: sjk@q-crystal.com
Add: 12/F, Building 3C, TianAn Cloud Park Phase 1, Bantian, Longgang District, Shenzhen, 518129, China