| DS1746 Description | | Y2K-Compliant, Nonvolatile Timekeeping RAMs | | DS1746 Vendor | | Maxim | | DS1746 Categories | | | DS1746 Features | | Integrated NV SRAM, Real-Time Clock, Crystal, Power-Fail Control Circuit, and Lithium Energy Source Clock Registers are Accessed Identically to the Static RAM. These Registers are Resident in the Eight Top RAM Locations. Century Byte Register (i.e., Y2K Compliant) Totally Nonvolatile with Over 10 Years of Operation in the Absence of Power BCD-coded century, year, month, date, day, hours, minutes, and seconds with automatic leap year compensation valid up to the year 2100 Battery Voltage-Level Indicator Flag Power-Fail Write Protection Allows for ±10% VCCPower Supply Tolerance Lithium Energy Source is Electrically Disconnected to Retain Freshness Until Power is Applied for the First Time DIP Module Only Standard JEDEC Byte-Wide 128k x 8 Static RAM Pinout PowerCap® Module Board Only Surface Mountable Package for Direct Connection to PowerCap Containing Battery and Crystal Replaceable Battery (PowerCap) Power-On Reset Output Pin-for-Pin Compatible with Other Densities of DS174xP Timekeeping RAM Also Available in Industrial Temperature Range: -40°C to +85°C | | DS1746 Datasheet and Application Notes | | | Parameter | Value | | Time Format (hh = 1/100 sec) | HH:MM:SS | | Date Format | YYYY-MM-DD | | Bus Type | Bytewide | | Op. Temp Range | -40° to +85° | | Op. Temp Range | 0° to +70° | | Supply Voltage (V) | 3.3 | | Supply Voltage (V) | 5 | | NV RAM (Bytes) | 128k | | Package | 32/EDIP.740a | | Package | 34/PwrCap | | Price @ 1k | $22.40 |
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