Payment Method
R2045S-E2-FE +BOM
R2045S-E2-FE Real Time Clock Module
8-HSOP-E-
Manufacturer:
-
Mfr.Part #:
R2045S-E2-FE
-
Datasheet:
-
Programmable:
Not Verified
-
Type:
Clock/Calendar
-
Features:
Alarm, Leap Year
-
Time Format:
HH:MM:SS (12/24 hr)
-
EDA/CAD Models:
Availability: 5061 PCS
Please fill in the short form below and we will provide you the quotation immediately.
R2045S-E2-FE General Description
The R2045S/D is a real-time clock module, built in CMOS real-time clock IC and crystal oscillator, connected to the CPU by four signal lines, CE, SCLK, SI, and SO, and configured to perform serial transmission of time and calendar data to the CPU. The oscillation frequency is adjusted to high precision (05ppm: 13 sec. per month at 25C). The periodic interrupt circuit is configured to generate interrupt signals with six selectable interrupts ranging from 0.5 seconds to 1 month. The 2 alarm interrupt circuits generate interrupt signals at preset times. As the oscillation circuit is driven under constant voltage, fluctuation of the oscillator frequency due to supply voltage is small, and the time keeping current is small (TYP. 0.48A at 3V). The oscillation halt sensing circuit can be used to judge the validity of internal data in such events as power-on. The supply voltage monitoring circuit is configured to record a drop in supply voltage below two selectable supply voltage monitoring threshold settings.
Key Features
- Built in 32.768kHz crystal unit, The oscillation frequency is adjusted to high precision (05ppm: at 25C)
Time keeping voltage 1.15V to 5.5V
Super low power consumption 0.48A TYP (1.2A MAX) at VDD=3V
Four signal lines (CE, SCLK, SI, and SO) required for connection to the CPU.
Time counters (counting hours, minutes, and seconds) and calendar counters (counting years, months, days,
and weeks) (in BCD format) - 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)
32768Hz clock output pin (N-channel open drain output)
With Power-on flag to prove that the power supply starts from 0V
With Oscillation halt sensing Flag 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
Oscillation adjustment circuit for correcting temperature frequency deviation or offset deviation
Two types of package, SOP14(10.1x7.4x3.1) or SON22(6.1x5.0x1.3)
Specifications
Category | Integrated Circuits (ICs)Clock/TimingReal Time Clocks | Series | - |
Programmable | Not Verified | Type | Clock/Calendar |
Features | Alarm, Leap Year | Memory Size | - |
Time Format | HH:MM:SS (12/24 hr) | Date Format | YY-MM-DD-dd |
Interface | 3-Wire Serial, 4-Wire Serial | Voltage - Supply | 1.7V ~ 5.5V |
Voltage - Supply, Battery | - | Current - Timekeeping (Max) | 1.8µA ~ 2µA @ 3V ~ 5V |
Operating Temperature | -40°C ~ 85°C | Mounting Type | Surface Mount |
Base Product Number | R2045 |
Service Policies and Others
After-Sales & Settlement Related
For alternative payment channels, please reach out to us at:
[email protected]Shipping Method
AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.
365-Day Product
Quality Guarantee
We promise to provide 365 days quality assurance service for all our products.
In Stock: 5,061
Minimum Order: 1
Qty. | Unit Price | Ext. Price |
---|---|---|
1+ | - | - |
The prices below are for reference only.
All bill of materials (BOM) can be sent via email to [email protected], or fill below form to Quote for R2045S-E2-FE, guaranteed quotes back within 12hr.
Top Sellers
-
RS5C348A-E2-F
Nisshinbo Micro Devices Inc
1000+ $0.432
-
RV5C348A-E2-F
Nisshinbo Micro Devices Inc
1000+ $0.431
-
R2025S-E2-FE
Nisshinbo Micro Devices Inc
1000+ $0.372
-
NJM555D
Nisshinbo Micro Devices Inc
Standard Timer Single 8-Pin PDIP Tube
-
R2025S-E2-F
Nisshinbo Micro Devices Inc
I2C-compatible real-time clock module for accurate timekeeping