Antiuav Chips and Transistors

MM58146N Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumber	Manufactor	Quantity	Availability
MM58146N	NS	120	Yes

MM58146N is a real-time clock (RTC) integrated circuit manufactured by National Semiconductor (NS).

The MM58146N is a real-time clock (RTC) integrated circuit manufactured by National Semiconductor (NS).

Specifications:

Manufacturer: National Semiconductor (NS)
Type: Real-Time Clock (RTC)
Interface: Parallel
Supply Voltage: 5V ±10%
Operating Temperature Range: 0°C to +70°C
Clock Frequency: 50Hz or 60Hz (selectable)
Timekeeping Accuracy: Dependent on external crystal or power line frequency
Package: 24-pin DIP (Dual In-line Package)
Features:
Counts seconds, minutes, hours, day of week, date, month, and year
Leap year compensation
12-hour or 24-hour time format
Power-fail detection and backup mode support
Requires minimal external components

Descriptions:

The MM58146N is a CMOS real-time clock designed for timekeeping applications. It maintains time and calendar functions with minimal power consumption and can be driven by either an external crystal oscillator or the power line frequency (50Hz/60Hz).

Features:

Timekeeping Functions:
Seconds, minutes, hours
Day of week, date, month, year
Calendar Adjustments:
Automatic leap year correction
28/29/30/31-day month handling
Power Management:
Battery backup capability
Low-power CMOS technology
Output Options:
Parallel data interface
Interrupt capability for alarms

This IC was commonly used in early computer systems, industrial controllers, and embedded applications requiring accurate timekeeping.

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