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 DS17285/DS17287/DS17485/DS17487/DS17885/DS17887Features
♦ Incorporates Industry-Standard DS12887 PC Clock Plus Enhanced Functions ♦ RTC Counts Seconds, Minutes, Hours, Day, Date, Month, and Year with Leap Year Compensation Through 2099 ♦ Optional +3.0V or +5.0V Operation ♦ SMI Recovery Stack ♦ 64-Bit Silicon Serial Number ♦ Power-Control Circuitry Supports System Power- On from Date/Time Alarm or Key Closure ♦ Crystal Select Bit Allows Operation with 6pF or 12.5pF Crystal ♦ 12-Hour or 24-Hour Clock with AM and PM in 12-Hour Mode ♦ 114 Bytes of General-Purpose, Battery-Backed NV SRAM ♦ Extended Battery-Backed NV SRAM 2048 Bytes (DS17285/DS17287) 4096 Bytes (DS17485/DS17487) 8192 Bytes (DS17885/DS17887) ♦ RAM Clear Function ♦ Interrupt Output with Six Independently Maskable Interrupt Flags ♦ Time-of-Day Alarm Once per Second to Once per Day ♦ End of Clock Update Cycle Flag ♦ Programmable Square-Wave Output ♦ Automatic Power-Fail Detect and Switch Circuitry ♦ Available in PDIP, SO, or TSOP Package (DS17285, DS17485, DS17885) ♦ Optional Encapsulated DIP (EDIP) Package with Integrated Crystal and Battery (DS17287, DS17487, DS17887) ♦ Optional Industrial Temperature Range Available ♦ Underwriters Laboratory (UL) Recognized |
