特性
- Real-Time Clock (RTC) counts seconds, minutes, hours, day, date, month, and year with leap-year compensation valid up to 2100
- 56-Byte battery-backed Non Volatile RAM for data storage
- Fast mode I2C Serial interface
- Automatic power-fail detect and switch circuitry
- Programmable square-wave output
- Packaged in 8-pin MSOP, 8-pin SOIC, or 16-pin SOIC (surface-mount package with an integrated crystal)
- Industrial temperature range (-40°C to +85°C)
描述
The 1338 is a serial real-time clock (RTC) device that consumes ultra-low power and provides a full binary-coded decimal (BCD) clock/calendar with 56 bytes of battery backed Non-Volatile Static RAM. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. Access to the clock/calendar registers is provided by an I2C interface capable of operating in fast I2C mode. Built-in Power-sense circuitry detects power failures and automatically switches to the backup supply, maintaining time and date operation.
产品参数
| 属性 | 值 |
|---|---|
| Interface | I2C |
| Supply Voltage Vcc (Min) (V) | 1.8 |
| Battery Backup | No |
| Battery Seal | No |
| CPU Supervisory Function POR | No |
| Crystal Frequency Trimming | No |
| Frequency Out Pin | No |
| Battery Current (nA) | 300 |
| Time Keeping Current (µA) | 1.4 |
| SRAM | 56 Bytes |
| Selectable Frequency Output | 1 |
| Accuracy | ±20 ppm |
应用方框图
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采用 SMARC 2.1 的紧凑型 RZ SoM 配备高速接口、AI、强大的安全性和可扩展性。
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高性能人机界面（HMI）系统
多功能模块系统（SoM），用于驱动各种人机界面功能。
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多显示器 HMI SoM
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RZ/G2E 电源和时序系统级模块
电源和时序系统级模块（SoM）确保精确的时序和高效的功率分配。
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