该文件介绍了M48Z129Y*和M48Z129V型号的5.0V或3.3V的1Mbit(128 Kb x 8)ZEROPOWER® SRAM,具有集成的超低功耗SRAM、断电控制电路和电池。它具有传统的SRAM操作,无限的写入周期,10年的数据保留时间,微处理器上电复位功能,电池低电位提醒,自动断电芯片取消选择和写保护,以及与JEDEC标准128K x 8 SRAM的引脚和功能兼容。
The DS18B20 Digital Thermometer provides 9 to 12–bit centigrade temperature measurements and has an alarm function with nonvolatile user-programmable upper and lower trigger points. The DS18B20 communicates over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a central microprocessor. It has an operating temperature range of –55°C to +125°C (–67°F to +257°F).