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1. Utsource will inspect the goods, including appearance inspection (no serious damage to the appearance), select qualified and honest suppliers, and ensure 98% qualification rate.
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Description
Static RAM, Maxim Integrated
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The parameters and performance indicators of this product are sourced from the internet. In case of discrepancies, please refer to the manufacturer's technical specifications!！
| Parameter | Description |
|---|---|
| Device Type | Real-Time Clock (RTC) with SRAM and Battery Backup |
| Package | 16-SOIC (Small Outline Integrated Circuit) |
| Operating Voltage | VCC: 2.2V to 5.5V; VBAT: 1.8V to 3.6V |
| Operating Temperature | -40°C to +85°C |
| Clock Accuracy | ±2 minutes per year at 25°C |
| SRAM Size | 1024 bytes (1K x 8) |
| Battery Backup | Lithium coin cell battery (CR1220 or similar) |
| Communication Interface | I2C (Two-wire Serial Interface) |
| I2C Address | 0x68 (Fixed) |
| Oscillator Frequency | 32.768 kHz |
| Power Consumption | < 1 μA in battery backup mode |
| Write Protection | Hardware write protect pin (WP) |
| Supply Current | 100 μA typical (active mode) |
| Quartz Crystal | External 32.768 kHz crystal required |
Power Supply Connection
Ground Connection
I2C Interface
Write Protection
External Crystal
Initialization
Reading Time and Date
Writing Time and Date
Battery Backup
Testing
For detailed register maps and specific I2C commands, refer to the DS1218S+ datasheet provided by the manufacturer.
(For reference only)Preview of the first 3 pages of the data sheet
| QUANTITY | UNIT PRICE | PLUS UNIT PRICE | TOTAL PRICE |
|---|---|---|---|
| ≥1: | US $1.43430 | US $1.29087 | US $1.29087 |
| ≥5: | US $0.95620 | US $0.86058 | US $4.30290 |
| ≥10: | US $0.86058 | US $0.77452 | US $7.74520 |
| ≥20: | US $0.83668 | US $0.75301 | US $15.06020 |
| ≥50: | US $0.81277 | US $0.73149 | US $36.57450 |
| ≥100: | US $0.78886 | US $0.70997 | US $70.99700 |
| ≥200: | US $0.76496 | US $0.68846 | US $137.69200 |
| ≥500: | US $0.75540 | US $0.67986 | US $339.93000 |
| ≥1000: | US $0.74106 | US $0.66695 | US $666.95000 |
Substitute (equivalent) Product
| Product Name | Description |
|---|---|
| DS1216+ | 8-Bit Microcontroller with 2K x 8 EEPROM, 100kHz I2C Interface, and Watchdog Timer |
| DS1217J | Real-Time Clock/Calendar with 56-Byte NV SRAM and Watchdog Timer |
| DS1219+ | Real-Time Clock/Calendar with 512-Byte NV SRAM and Watchdog Timer |
| DS1307 | Real-Time Clock/Calendar with 56-Byte NV SRAM and Square-Wave Output |
| PCF8563 | Low-Power CMOS RTC with Integrated Vbat Switch and Alarm Function |
Product Usage
The DS1218S+ is a real-time clock (RTC) with a built-in temperature-compensated crystal oscillator (TCXO) and a serial interface, typically used in applications where accurate timekeeping is crucial. Here are some common circuits and systems that might use the DS1218S+:
Embedded Systems:
Consumer Electronics:
Networking Equipment:
Automotive Applications:
Security Systems:
Scientific Instruments:
Military and Aerospace:
The DS1218S+ is particularly useful in any application where the accuracy of the real-time clock is critical and the device needs to maintain correct time even under varying environmental conditions. Its temperature compensation feature ensures that the clock remains accurate over a wide range of temperatures, making it suitable for both indoor and outdoor applications.
Global Logistics Country List
| Flag | Country | Estimated Delivery Time | Minimum First Weight Cost | ||
|---|---|---|---|---|---|
| Express | Standard Shipping | Express (0.5kg) | Standard Shipping (0.05kg) | ||
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Returning
Returns are normally accepted when completed within 90 days from the date of the parcel delivered.
Defective ( Please provide a third party quality report of nonconforming products)
Return Freight charges must be prepaid; we will not accept COD shipments.
Warranty
All UTSOURCE purchases have a 90 days money back return policy, plus a 100 days UTSOURCE warranty against any manufacturing defects.This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation.
DS1218S+
DS1218S+ has several brands around the world that may have alternate names for DS1218S+ due to regional differences or acquisition. DS1218S+ may also be known as the following names:
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