Shanghai Aeneas Electronics Co.,Ltd.-Ricoh

SPI Serial Interface Types (4-wire)
Series	Package	Comments
R2043K/T	TSSOP10G/FFP12	lowest Tine Keeping Voltage 0.66V，32kHz Clock Output
R2045S/D	SOP14/SON22	Built in crystal unit ,Frequency Deviation(0±5ppm:25℃
RS5C348A/B	10pin SSOP 10pin SSOP-G 10pin SSOP	4-wire serial interface RTC，two timer circuits, 32KHZ output，voltage detector，high-precision oscillation adjustment

Serial Types (3-wire)
Series	Package	Comments
RS5C313	8pin SSOP	3-wire serial interface RTC
RS5C314	8pin SSOP	3-wire serial interface RTC
RS5C316A/B	8pin SSOP	3-wire serial interface RTC
RS5C317A/B	14pin SSOP	Ultra-Compact high performance serial RTC
RS5C321A/B	8pin SSOP	3-wire serial interface RTC，32kHz Clock Output
RS/RV5C338A	10pin SSOP	3-wire serial interface RTC，voltage detector，high-precision oscillation adjustment
RS/RV5C338A	10pin SSOP-G
RV5C339A	10pin SSOP-G	3-wire serial interface RTC，voltage detector，high-precision oscillation adjustment
R2061	12pin FFP	3-wire serial interface RTC with Battery backup switch-over function，voltage detector
R2062	FFP12/SSOP16	back-up Battery Switch-over circuit,CMOS out
R2033K/T	TSSOP10G/FFP12	lowest Tine Keeping Voltage 0.66V

I²C Bus Interface Types (2-wire)
Series	Package	Comments
RS5C372A/B	8pin SSOP	Two timer circuits，output 32KHZ，high-precision oscillation adjustment
RS5C373A	8pin SSOP	Two timer circuits，output 32KHZ， high-precision oscillation adjustment
RV5C386A	10pin SSOP-G	Two timer circuits，output 32KHZ， voltage detector，high-precision oscillation adjustment
RV5C387A	10pin SSOP-G	Two timer circuits，output 32KHZ， voltage detector，high-precision oscillation adjustment
R2051	12pin FFP	Battery backup switch-over function，voltage detector，with special Anti-creepage function for PCB
R2023K/T	TSSOP10G/FFP12	lowest Tine Keeping Voltage 0.66V
R2025	SOP14/SON22	built in crystal unit，I²C bus，voltage detector，high-precision oscillation adjustment
R2221 T/L R2223 T/L	TSSOP10G	2-wire Serial Interface Real Time Clock IC

Parallel Types
Series	Package	Comments
RP/RF5C01A(discontinued)	18pin DIP	4bit parallel RTC
	18pin SOP
RP/RF/RJ5C15(discontinued)	18pin DIP	4bit parallel RTC
	18pin SOP
	28pin PLCC
RP/RS5C62 (discontinued)	18pin DIP	low input current, small package, 4bit parallel RTC, timer circuit, with watchdog