品牌索引 产品分类 > 小信号开关二极管> 瞬态电压抑制器TVS/ESD> 双极管二极管> 调谐二极管> 齐纳(稳压)二极管> 小信号肖特基二极管> 频带转换二极管> 中/高功率管> 射频PIN二极管> Sinterglass二极管> 整流器 > N沟道(N-Channel)> P沟道(P-Channel)> 双N沟道(Dual N-Channel)> 双P沟道(Dual P-Channel)> 双N和P沟道(Dual N and P-Channel)
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产品介绍 DS32B35/DS32C35Features
♦ Integrated 32.768kHz Crystal ♦ Fast (400kHz) I2C Interface ♦ RTC Counts Seconds, Minutes, Hours, Day, Date, Month, and Year with Leap Year Compensation Valid Up to 2100 ♦ RTC Accuracy ±2ppm from 0°C to +40°C ♦ RTC Accuracy ±3.5ppm from -40°C to 0°C and +40°C to +85°C ♦ Nonvolatile Memory with 10 Years of Guaranteed Backup Time and Write Protection ♦ Two Available Densities of Nonvolatile Memory 2048 Bytes (DS32B35) 8192 Bytes (DS32C35) ♦ No Cycle Limitations on Memory ♦ Power-Switching Circuit Selects Between Main Power and Battery Backup for the RTC ♦ Programmable Square Wave with Frequency of 32.768kHz, 8.192kHz, 4.096kHz, or 1Hz ♦ Two Time-of-Day Alarms ♦ Reset Output/Pushbutton Reset (Debounced) Input ♦ Programmable Output Provides Interrupt or Square Wave ♦ Calibrated 32.768kHz Open-Drain Output ♦ Temp Sensor with ±3°C Accuracy ♦ 3.3V Operating Voltage ♦ Commercial and Industrial Temperature Ranges ♦ 300-mil, 20-Pin SO Package ♦ Underwriters Laboratories (UL) Recognized |