Specifications

Security and surveillance

Digital video recorders (DVRs)

www.digikey.com/maxim-industrial 121

Part Description Features Benefits

RTCs

DS1315 Phantom time chip Real-time clock (RTC); nonvolatile memory controller Integrated clock and memory controller save space

and provide design flexibility; phantom interface

allows communication over parallel bus with no

address space requirements

DS1500 Watchdog timekeeper with nonvolatile

memory control

Programmable watchdog timer; time-of-day alarm;

power-control circuitry

Integrated clock and memory controller save space

DS1685 Multiplexed-interface real-time clock 64-bit unique serial number; 242 bytes of battery-

backed NV SRAM

Simplifies adding a unique ID to a design while

providing extra battery-backed memory

Supervisory ICs

MAX6381–90 Single-voltage monitors Low power; SC70; various reset thresholds and

timeouts

Save space, save power, and increase reliability

with no external components

MAX6443–52 Voltage monitors with extended setup

delay pushbutton

Extended pushbutton setup delay (6 seconds); manual

reset

Increases reliability by avoiding accidental resets;

increases performance by allowing system to be

reset by external pushbutton

MAX16056–59 Ultra-low-power reset + watchdog ICs 125nA supply current; capacitor-adjustable reset;

watchdog timeout delays

Save power and battery life; use one IC across

multiple applications with adjustable timeouts