Overview
The RTC-72423A3:PURE SN is a Real Time Clock (RTC) integrated circuit produced by Seiko Epson Corporation. This component is designed to provide accurate time and calendar functions, making it a crucial element in various electronic systems. The RTC-72423A3 features a built-in crystal unit, which allows for adjustment-free and efficient operation. It supports both 24-hour and 12-hour formats and automatically adjusts for leap years based on the Gregorian calendar.
Key Specifications
| Item | Symbol | Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage | VDD | Ta=+25 °C | -0.3 | 7.0 | V | |
| Current Consumption | IDD1 | CS1= 0 V, Exclude input/output current, VDD=5 V | 1 | 10 | µA | |
| Input Voltage | VI/O | Ta=+25 °C | GND-0.3 | VDD+0.3 | V | |
| Storage Temperature | TSTG | -55 | 125 | °C | ||
| Operating Temperature | TOPR | -40 | 85 | °C | ||
| HIGH Input Voltage (1) | VIH1 | 2.2 | V | |||
| LOW Input Voltage (1) | VIL1 | 0.8 | V | |||
| LOW Output Voltage (1) | VOL1 | IOL=2.5 mA | 0.4 | V | ||
| HIGH Output Voltage | VOH | IOH=-400 µA | 2.4 | V | ||
| Frequency Precision | ∆f / f | Ta=+25 °C, VDD=5.0 V | ±20 ×10^-6 (72423A) | ±50 ×10^-6 (72423B) |
Key Features
- Built-in crystal unit for adjustment-free and efficient operation.
- Supports both 24-hour and 12-hour formats.
- Automatically adjusts for leap years based on the Gregorian calendar.
- Low power consumption with a typical current of 1 µA at VDD=5 V.
- Operating temperature range from -40 °C to +85 °C.
- 24-pin SOP package.
- RoHS compliant.
Applications
- Embedded systems requiring accurate time and calendar functions.
- Industrial control systems.
- Medical devices.
- Automotive systems.
- Consumer electronics such as smart home devices and appliances.
Q & A
- What is the primary function of the RTC-72423A3?
The primary function of the RTC-72423A3 is to provide accurate time and calendar functions.
- What is the operating temperature range of the RTC-72423A3?
The operating temperature range is from -40 °C to +85 °C.
- Does the RTC-72423A3 support both 24-hour and 12-hour formats?
- How does the RTC-72423A3 handle leap years?
- What is the typical current consumption of the RTC-72423A3 at VDD=5 V?
- Is the RTC-72423A3 RoHS compliant?
- What is the package type of the RTC-72423A3?
- What are some common applications of the RTC-72423A3?
- What is the storage temperature range for the RTC-72423A3?
- How accurate is the frequency precision of the RTC-72423A3?
