Product Summary

The DDS17487-5 is a real-time clock(RTC) designed as successors to the industry standard DS1285, DS1385, DS1485, DS1585, and DS1685 PC real-time clocks. The DS17487-5 provides the industry standard DS1285 clock function with either +3V or +5V operation. The DS17487-5 also incorporates a number of enhanced features including a silicon serial number, power-on/off control circuitry, 114 bytes of user NV SRAM plus 4kB of additional NV RAM, and 32.768kHz output for sustaining power management activities.

Parametrics

DS17487-5 absolute maximum ratings: (1)Voltage Range on Any Pin Relative to Ground: -0.3V to +7.0V; (2)Storage Temperature Range: -40℃ to +85℃; (3)Soldering Temperature Range: +260℃.

Features

DS17487-5 features: (1)Y2K compliant; (2)+3V or +5V operation; (3)SMI recovery stack; (4)64-bit silicon serial number; (5)Power-control circuitry supports system power-on from date/time alarm or key closure; (6)32kHz output on power-up; (7)Crystal select bit allows RTC to operate with 6pF or 12.5pF crystal; (8)114 bytes user NV RAM; (9)Auxiliary battery input; (10)4kB additional NV RAM; (11)RAM clear input; (12)Century register; (13)Date alarm register.

Diagrams

DS17487-5 Encapsulated Package

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
DS17487-5
DS17487-5
Maxim Integrated Products
Real Time Clock
Data Sheet
Negotiable 
DS17487-5IND
DS17487-5IND
Maxim Integrated Products
Real Time Clock
Data Sheet
Negotiable 
DS17487-5IND+
DS17487-5IND+
Maxim Integrated Products
Real Time Clock 3V/5V RTC
Data Sheet
0-1: $13.34
1-25: $9.34
25-50: $6.77
50-100: $6.22
DS17487-5+
DS17487-5+
Maxim Integrated Products
Real Time Clock 3V/5V RTC
Data Sheet
0-1: $12.50
1-25: $8.39
25-50: $6.08
50-100: $6.01