Current - Timekeeping (Max) is 4mA @ 4.5V ~ 5.5V - Clock/Timing - Real Time Clocks Distributor - DS1644-120 DS1644-120+ DS1644P-120

Part Number	Manufacturer / Brand	Brife Description	Part Status	Type	Features	Memory Size	Time Format	Date Format	Interface	Voltage - Supply	Voltage - Supply, Battery	Current - Timekeeping (Max)	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package
DS1644-120	Maxim Integrated	IC RTC CLOCK/CALENDAR PAR 28-EDIP	Obsolete	Clock/Calendar	Leap Year, NVSRAM	32KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5 V ~ 5.5 V	-	4mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Through Hole	28-DIP Module (0.600", 15.24mm)	28-EDIP
DS1644-120+	Maxim Integrated	IC RTC CLOCK/CALENDAR PAR 28-EDIP	Obsolete	Clock/Calendar	Leap Year, NVSRAM	32KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5 V ~ 5.5 V	-	4mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Through Hole	28-DIP Module (0.600", 15.24mm)	28-EDIP
DS1644P-120	Maxim Integrated	IC RTC CLOCK/CALENDAR PAR 34-PCM	Obsolete	Clock/Calendar	Leap Year, NVSRAM	32KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5 V ~ 5.5 V	3V	4mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	34-PowerCap™ Module	34-PowerCap Module
DS1644P-120+	Maxim Integrated	IC RTC CLOCK/CALENDAR PAR 34-PCM	Obsolete	Clock/Calendar	Leap Year, NVSRAM	32KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5 V ~ 5.5 V	3V	4mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	34-PowerCap™ Module	34-PowerCap Module
DS1647P-120+	Maxim Integrated	IC RTC CLOCK/CALENDAR PAR 34-PCM	Obsolete	Clock/Calendar	Leap Year, NVSRAM	512KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5 V ~ 5.5 V	3V	4mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	34-PowerCap™ Module	34-PowerCap Module
M48T128Y-70PM1	STMicroelectronics	IC RTC CLOCK/CALENDAR PAR 32-DIP	Obsolete	Clock/Calendar	Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5 V ~ 5.5 V	-	4mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Through Hole	32-DIP Module (0.600", 15.24mm)	32-PMDIP
M48T512Y-70PM1	STMicroelectronics	IC RTC CLOCK/CALENDAR PAR 32-DIP	Obsolete	Clock/Calendar	Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5 V ~ 5.5 V	-	4mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Through Hole	32-DIP Module (0.600", 15.24mm)	32-PMDIP Module

Manufacturers for Clock/Timing - Real Time Clocks