HT1381A
- 1+： ￥2.67 / 个
- 10+： ￥2.23 / 个
- 30+： ￥2.03 / 个
- 100+： ￥1.53 / 个 （折合1管153元）
- 500+： ￥1.43 / 个 （折合1管143元）
| 1+： |
￥2.67 / 个 |
| 10+： |
￥2.23 / 个 |
| 30+： |
￥2.03 / 个 |
| 100+： |
￥1.53 / 个 （折合1管153元） |
| 500+： |
￥1.43 / 个 （折合1管143元） |
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商品介绍
| 属性 | 参数值 | |
|---|---|---|
| 商品目录 | 实时时钟(RTC) | |
| 接口 | 单总线协议 | |
| 工作电压 | 2V~5.5V |
产品讯息
HOLTEK的实时时钟IC HT1380/HT1381已普遍销售于全球多年，可应用在各种需要计数时间的产品上，如：电表、水表、家电产品、计算机产品等，质量及特性深受客户肯定。基于服务及对自我质量的要求，盛群对HT1380/HT1381进行体质上的改善，以更先进制程开发，加大IC的负性阻抗能力及抗噪声能力、提升操作温度特性。因为增强了特性，所以新版IC编号为HT1380A/HT1381A，请旧雨新知继续爱用。
HT1380A/HT1381A与HT1380/HT1381在特性及包装脚位上完全兼容，采用串行式接口；具有计算秒、分、时、日、月、星期、年的能力；具有闰年调整的能力；低工作电流：＜0.5uA（Max.）@VDD=2.0V；有12小时制、24小时制二种时间模式；支持连续写（Burst Mode）及单个写（Single Mode）两种数据传送方式；HT1380A采用8DIP封装、HT1381A采用8SOP封装。工作温度则扩大至 ?40~85°C。
HT1380A/HT1381A是一款操作简单的实时时钟IC，应用广泛如：煤气表、考勤及门禁设备、计费电话、收款机、MP3、数字相框、办公室自动化产品等。
HT1380A/HT1381A
Serial Timekeeper Chip
The HT1380A/HT1381A is a serial timekeeper IC which provides seconds, minutes, hours, day, date, month and year information. The number of days in each month and leap years are automatically adjusted. The HT1380A/HT1381A is designed for low power consumption and can operate in two modes: one is the 12-hour mode with an AM/PM indicator, the other is the 24-hour mode.
The HT1380A/HT1381A has several registers to store the corresponding information with 8-bit data format. A 32768Hz crystal is required to provide the correct timing. In order to minimize the pin number, the HT1380A/HT1381A use a serial I/O transmission method to interface with a microprocessor. Only three wires are required: (1) RESTB, (2) SCLK and (3) I/O. Data can be delivered 1 byte at a time or in a burst of up to 8 bytes.
Features
- Operating voltage: 2.0V~5.5V
-
Maximum input serial clock:
500kHz at VDD=2V, 2MHz at VDD=5V -
Operating current:
less than 0.5uA at 2V
less than 0.7uA at 3V
less than 1.0uA at 5V -
TTL compatible
- VIH: 2.0V ~ VDD+0.3V at VDD=5V
- VIL: 0.3V ~ +0.8V at VDD=5V - Two data transmission modes: single-byte or burst mode
- Serial I/O transmission
- All registers store BCD format
-
HT1380A: 8-pin DIP package
HT1381A: 8-pin SOP package
| 文件名 | 说明 |
| 1380a_81a.pdf | Revision History |
| simHT1380A_81Av110.pdf | Data Sheet |
| dip8-300.pdf | 8-pin DIP 封装 |
| sop8-150.pdf | 8-pin SOP 封装 |
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