Real Time Clock Ricoh

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Real Time Clocks Ricoh

Series	Part No.	Package	Timekeeping		Alarm	Periodic Interrupt	32kHZ Clock Out	Oscillation		Comment
			Supply Current µA@V	Voltage V				Adj	Half Sensing
4-bit Parallel Interface
RP/RF5C01A discontinued	RP5C01A	DIP18	Max 15@2.2	2.2 to 5.25	1 day/week/hour/min	1.16Hz				26x4bits SRAM
	RF5C01A	SOP18
RP/RF/RJ5C15 discontinued	RP5C15	DIP18	Max 15@2.0	2.0 to 5.5	1 day/week/hour/min	16.384kHz to 1 Minute
	RF5C15	SOP18
	RJ5C15	PLCC28
RP/RS5C62	RP5C62	DIP18	Max 3@2.5	2.0 to 6.0	1 hour/min	2.0484kHz to 1 Minute			Yes	Low Supply Current Watchdog Timer
	RF5C62	SOP18
	RS5C62	SSOP20
The Real Time Clock RF5C62 (SOP18) will be discontinued in the near future. Please use the RS5C62 (SSOP20) to new products.
SPI Serial Interface Type (4 wire)
RS/RV5C348A/B	RS5C348A	SSOP10	Typ 0.35@3.0	1.45 to 5.5	2 sets week/hour/min hour/min	2Hz to 1 Month	Open Drain	Yes	Yes	Supply voltage monitoring 32kHz clock can stop Y2K compliant
	RV5C348A	SSOP10-G
	RS5C348B	SSOP10
	RV5C348B	SSOP10-G
Serial Type (3 wire)
RS5C313	RS5C313	SSOP8	Typ 0.7@3.0	1.6 to 6.0		1.024kHz to 1 Month			Yes	Serial Clock "H" Active
RS5C314	RS5C314	SSOP8								Serial Clock "L" Active
RS5C316A/B	RS5C316A	SSOP8	Typ 0.6@3.0	1.6 to 6.0	1 week/hour/min	1.024kHz to 1 Month			Yes	Serial Clock "H" Active
	RS5C316B	SSOP8								Serial Clock "L" Active
RS5C321A/B	RS5C321A	SSOP8	Typ 0.6@3.0	1.6 to 6.0			Open Drain		Yes	Serial Clock "H" Active
	RS5C321B	SSOP8								Serial Clock "L" Active
RS5C317A/B	RS5C317A	SSOP14	Typ 0.6@3.0	1.6 to 6.0	1 week/hour/min	1.024kHz to 1 Month	CMOS		Yes	Serial Clock "H" Active
	RS5C317B	SSOP14								Serial Clock "L" Active
RS/RV5C338A	RS5C338A	SSOP10	Typ 0.35@3.0	1.45 to 5.5	2 sets week/hour/min hour/min	2Hz to 1 Month	CMOS	Yes	Yes	Supply voltage monitoring 32kHz clock can stop Y2K compliant
	RV5C338A	SSOP10-G
RV5C339A	RV5C339A	SSOP10-G					Open Drain	Yes	Yes
I²C Bus Interface Type (2 wire)
RS5C372A/B	RS5C372A	SSOP8	Typ 0.5@3.0	1.45 to 6.0	2 sets week/hour/min	2Hz to 1 Month	Open Drain	Yes	Yes	Precision Time Trimmer Nch. Open Drain Output
	RS5C372B						CMOS			Precision Time Trimmer CMOS Output
RV5C386A	RV5C386A	SSOP10-G	Typ 0.35@3.0	1.45 to 5.5	2 sets week/hour/min hour/min	2Hz to 1 Month	CMOS	Yes	Yes	Precision Time Trimmer Voltage Monitoring, Y2K compliant
RV5C387A	RV5C387A	SSOP10-G					Open Drain