DP8570AVX vs DP8573AV
| Part Number |
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| Category | Clock/Timing - Real Time Clocks | Clock/Timing - Real Time Clocks |
| Manufacturer | Texas Instruments | Texas Instruments |
| Description | IC RTC TCP PAR 28-PLCC | IC RTC CLK/CALENDAR PAR 28-PLCC |
| Package | Tape & Reel (TR) | -Reel® |
| Series | - | - |
| Type | Timer Clock Peripheral (TCP) | Clock/Calendar |
| Features | Alarm, Leap Year | Alarm, Leap Year |
| Time Format | HH:MM:SS:hh (12/24 hr) | HH:MM:SS:hh (12/24 hr) |
| Date Format | YY-MM-DD-dd | YY-MM-DD-dd |
| Interface | Parallel | Parallel |
| Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V |
| Current - Timekeeping (Max) | 1µA @ 5V | 1µA @ 5V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 28-LCC (J-Lead) | 28-LCC (J-Lead) |
| Supplier Device Package | 28-PLCC (11.51x11.51) | 28-PLCC (11.51x11.51) |
| Memory Size | 44B | - |
| Voltage - Supply, Battery | 2.2V ~ 5.1V | 2.2V ~ 5.1V |
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1. What are the typical applications of RTC?
RTC is widely used in embedded systems, computers, consumer electronic devices (such as smartphones and cameras), industrial control systems, data recording devices, and any device that requires precise time maintenance.
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2. How accurate is the real-time clock?
The accuracy of RTC usually depends on the clock source used (such as a crystal oscillator), and most RTC accuracies range from a few seconds to a few minutes per month. For higher precision, a temperature compensated crystal oscillator (TCXO) can be used.
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3. How to communicate with real-time clock in the device?
Real time clocks typically communicate with microcontrollers or other processors through I2C or SPI communication interfaces, allowing for the reading and setting of time and other related information.
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4. How to choose a suitable RTC chip?
When choosing RTC, factors such as power consumption, communication interface (I2C/SPI), time accuracy, whether there is a built-in crystal or external crystal required, battery support, temperature range, and whether there is an alarm function should be considered.
