Maxim Integrated DS2404S-001

Description
The DS2404 EconoRAM Time Chip is a nonvolatile dual-port memory device that includes a real-time clock/calendar, programmable interval timer, and programmable power-on cycle counter. It features a unique, factory-lasered 64-bit registration number for absolute traceability. The memory is partitioned into 16 pages of 256 bits for packetizing data, and a 256-bit scratchpad ensures data transfer integrity. Programmable alarms can be set to generate interrupts for the interval timer, real-time clock, and/or cycle counter.

Features
4096 bits of nonvolatile dual-port memory
Real-time clock/calendar in binary format
Programmable interval timer
Programmable power-on cycle counter
1-Wire interface for MicroLAN communication at 16.3kbits/s
3-wire host interface for high-speed data communications at 2Mb/s
Unique, factory-lasered and tested 64-bit registration number
Memory partitioned into 16 pages of 256 bits
256-bit scratchpad with strict read/write protocols
Programmable alarms for interval timer, real-time clock, and/or cycle counter
16-pin DIP, SO, and SSOP packages
Operating temperature range from -40°C to 85°C
Operating voltage range from 2.8V to 5.5V

Applications
Timekeeping and data logging
Industrial control and automation
Medical devices
Security systems
Point-of-sale terminals
Inventory management
Asset tracking