DS1386P-8-120+

Real Time Clock Overview

The DS1386P-8-120+ is a Real-Time Clock (RTC) manufactured by Analog Devices Inc./Maxim Integrated. It features a parallel bus interface and supports both 12-hour and 24-hour time formats (HH:MM:SS:hh). The device integrates 32 kB of non-volatile timekeeping RAM, a calendar function, and a watchdog timer. It operates within a supply voltage range of 4.5 V to 5.5 V and is designed for through-hole installation. The component functions across an operating temperature range of 0°C to +70°C.

Real Time Clock Feature Summary

• Integrated 32 kB NV Timekeeping RAM
• Parallel Bus Interface
• Calendar, Clock, and Watchdog Timer Functions

Real Time Clock Applications

• Systems requiring precise real-time clocking with parallel connectivity
• Industrial equipment needing integrated calendar and watchdog capabilities
• Data logging devices utilizing the onboard non-volatile memory

Real Time Clock Procurement Notes

This component is listed as discontinued by the manufacturer. Availability is restricted, and sourcing may require checking distributor inventories or secondary markets. Verify the specific suffix (+) indicates RoHS compliance when confirming part authenticity against official datasheets.

Real Time Clock Selection Notes

Select this part only if a parallel interface is required, as newer alternatives often utilize serial protocols like I2C or SPI. Ensure the system power supply remains stable between 4.5 V and 5.5 V. Consider the through-hole package constraints during PCB layout design compared to surface-mount options.

Real Time Clock Part Context

The DS1386 series belongs to Maxim Integrated's line of RTCs combining timekeeping with significant on-chip memory. The 'P' suffix denotes a plastic DIP package, while '-8-120+' typically specifies temperature grade and lead-free/RoHS status. This model serves legacy systems requiring robust, standalone timekeeping solutions.

Real Time Clock Replacement Considerations

As the DS1386P-8-120+ is discontinued, direct functional replacements are limited. Evaluate modern RTCs with parallel interfaces or redesign for serial alternatives such as the DS1307 or DS3231 families, noting the interface and pinout differences.