Selection Guide 2013 - Ricoh
Selection Guide 2013 - Ricoh
Selection Guide 2013 - Ricoh
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Real Time Clock ICs<br />
New : Under Development : New Package :<br />
4-wire Serial Interface (SPI Bus)<br />
Product<br />
Name<br />
R2043x<br />
Package<br />
QFN023023-16<br />
TSSOP10G<br />
Time Keeping<br />
Current<br />
Typ.<br />
0.45μA<br />
(at 3V)<br />
Time Keeping<br />
Voltage<br />
Typ. 0.66V to 5.50V<br />
Worst. 1.0V to 5.5V<br />
Alarm<br />
Function<br />
2set<br />
(W/H/M, H/M)<br />
Perodic<br />
Interupt<br />
Function<br />
0.5s to<br />
1Month<br />
32kHz Clock Output<br />
Nch open drain output<br />
(Controllable by command)<br />
Battery<br />
Checker<br />
1.6V or 1.3V<br />
Clock<br />
Adjust<br />
Function<br />
OSC<br />
Halt<br />
Sensing<br />
Back-up<br />
Battery<br />
Switch-over<br />
Circuit<br />
VD with<br />
Delay<br />
Function<br />
Others<br />
R2045x<br />
SOP14<br />
SON22<br />
0.48μA<br />
(at 3V)<br />
1.15V to 5.50V<br />
2set<br />
(W/H/M, H/M)<br />
0.5s to<br />
1Month<br />
Nch open drain output<br />
(Controllable by command)<br />
2.1V or 1.3V<br />
Built-in crystal unit.<br />
Frequency Deviation<br />
: 0±5ppm<br />
R2243x<br />
QFN018018-12 0.3μA *3<br />
TSSOP10G<br />
(at 3V)<br />
R2296L QFN023023-16 0.35μA<br />
(at 3V)<br />
Rx5C348A SSOP10 0.35μA<br />
SSOP10G (at 3V)<br />
Rx5C348B SSOP10 0.55μA<br />
SSOP10G (at 3V)<br />
Typ. 0.6V to 5.5V<br />
Worst. 0.9V to 5.5V<br />
Typ. 0.6V to 5.5V<br />
Worst. 1.0V to 5.5V<br />
1.45V to 5.50V<br />
2set<br />
(W/H/M, H/M)<br />
2set<br />
(W/H/M, H/M)<br />
2set<br />
(W/H/M, H/M)<br />
0.5s to<br />
1Month<br />
0.5s to<br />
1Month<br />
0.5s to<br />
1Month<br />
Nch open drain output<br />
(Controllable by command)<br />
1.35V<br />
CMOS output with level shifter 1.35V<br />
Nch open drain output<br />
(Controllable by command)<br />
Nch open drain output<br />
(Keeping output enabled)<br />
2.1V or 1.6V<br />
ECO mode is set<br />
by register.<br />
Built-in event<br />
(tamper) detection.<br />
3-wire Serial Interface<br />
Product<br />
Name<br />
R2033x<br />
R2061x<br />
R2062L<br />
R2262L<br />
Package<br />
QFN023023-16<br />
TSSOP10G<br />
Time Keeping<br />
Current<br />
Typ.<br />
0.45μA<br />
(at 3V)<br />
Time Keeping<br />
Voltage<br />
Typ. 0.66V to 5.50V<br />
Worst. 1.0V to 5.5V<br />
Alarm<br />
Function<br />
2set<br />
(W/H/M, H/M)<br />
Perodic<br />
Interupt<br />
Function<br />
0.5s to<br />
1Month<br />
32kHz Clock Output<br />
CMOS output with<br />
control pin<br />
Battery<br />
Checker<br />
1.6V or 1.3V<br />
Clock<br />
Adjust<br />
Function<br />
OSC<br />
Halt<br />
Sensing<br />
Back-up<br />
Battery<br />
Switch-over<br />
Circuit<br />
VD with<br />
Delay<br />
Function<br />
Switch-over/<br />
Detector<br />
Threshold<br />
QFN023023-16 0.4μA Typ. 0.75V to 5.50V 2set 0.5s to<br />
1.7V, 2.8V<br />
— 2.10V or 1.35V<br />
SSOP16 (at 3V) Worst. 1.0V to 5.5V (W/H/M, H/M) 1Month<br />
2.4V<br />
QFN023023-16<br />
QFN0202-18<br />
Rx5C338A SSOP10<br />
SSOP10G<br />
RV5C339A SSOP10G<br />
0.4μA<br />
(at 3V)<br />
Typ. 0.75V to 5.50V<br />
Worst. 1.0V to 5.5V<br />
0.3μA Typ. 0.6V to 5.5V<br />
(at 3V) Worst. 0.9V to 5.5V<br />
0.35μA<br />
(at 3V)<br />
0.35μA<br />
(at 3V)<br />
1.45V to 5.50V<br />
1.45V to 5.50V<br />
2-wire Serial Interface (I 2 C Bus)<br />
2set<br />
(W/H/M, H/M)<br />
2set<br />
(W/H/M, H/M)<br />
2set<br />
(W/H/M, H/M)<br />
2set<br />
(W/H/M, H/M)<br />
0.5s to<br />
1Month<br />
CMOS output with<br />
level shifter<br />
0.5s to CMOS output with<br />
1Month level shifter<br />
0.5s to<br />
1Month<br />
0.5s to<br />
1Month<br />
CMOS output with<br />
control pin<br />
Nch open drain output<br />
(Controllable by command)<br />
2.10V or 1.35V<br />
1.35V<br />
2.1V or 1.6V<br />
2.1V or 1.6V<br />
*1<br />
*2<br />
2.7V, 2.9V<br />
2.7V<br />
Product<br />
Name<br />
R2023x<br />
R2025x<br />
R2051x<br />
R2221x<br />
Package<br />
QFN023023-16<br />
TSSOP10G<br />
SOP14<br />
SON22<br />
Time Keeping<br />
Current<br />
Typ.<br />
0.45μA<br />
(at 3V)<br />
0.48μA<br />
(at 3V)<br />
Time Keeping<br />
Voltage<br />
Typ. 0.66V to 5.50V<br />
Worst. 1.0V to 5.5V<br />
1.15V to 5.50V<br />
Alarm<br />
Function<br />
2set<br />
(W/H/M, H/M)<br />
2set<br />
(W/H/M, H/M)<br />
Perodic<br />
Interupt<br />
Function<br />
0.5s to<br />
1Month<br />
0.5s to<br />
1Month<br />
32kHz Clock Output<br />
CMOS output with<br />
control pin<br />
CMOS output with<br />
control pin<br />
Battery<br />
Checker<br />
1.6V or 1.3V<br />
2.1V or 1.3V<br />
Clock<br />
Adjust<br />
Function<br />
OSC<br />
Halt<br />
Sensing<br />
Back-up<br />
Battery<br />
Switch-over<br />
Circuit<br />
VD with<br />
Delay<br />
Function<br />
Others<br />
Switch-over/<br />
Detector<br />
Threshold<br />
Built-in crystal unit.<br />
Frequency Deviation<br />
: 0±5ppm<br />
2.4V, 2.8V<br />
QFN023023-16<br />
2set 0.5s to<br />
SSOP16 0.4μA Typ. 0.75V to 5.50V (W/H/M, H/M) 1Month CMOS output with<br />
2.10V or 1.35V<br />
2.4V, 2.8V, 4.0V<br />
(at 3V) Worst.1.0V to 5.5V (Register only. (Register only. level shifter<br />
TSSOP10G<br />
— 2.4V<br />
No INTR pin) No INTR pin)<br />
QFN018018-12 0.3μA *3<br />
TSSOP10G<br />
(at 3V)<br />
Typ. 0.6V to 5.5V<br />
Worst. 0.9V to 5.5V<br />
2set<br />
(W/H/M, H/M)<br />
0.5s to<br />
1Month<br />
CMOS output with<br />
control pin<br />
1.35V<br />
ECO mode is set<br />
by pin.<br />
21<br />
R2223x<br />
R2251L<br />
QFN018018-12 0.3μA *3<br />
TSSOP10G<br />
QFN0202-18<br />
(at 3V)<br />
0.3μA *3<br />
(at 3V)<br />
R2286L QFN023023-16 0.35μA<br />
(at 3V)<br />
Typ. 0.6V to 5.5V<br />
Worst. 0.9V to 5.5V<br />
Typ. 0.6V to 5.5V<br />
Worst. 0.9V to 5.5V<br />
Typ. 0.6V to 5.5V<br />
Worst. 1.0V to 5.5V<br />
RS5C372A<br />
1.3V to 6.0V<br />
0.5μA<br />
SSOP8<br />
(at 3V)<br />
RS5C372B 1.45V to 6.00V<br />
RV5C386A SSOP10G<br />
RV5C387A SSOP10G<br />
0.35μA<br />
(at 3V)<br />
0.35μA<br />
(at 3V)<br />
2set<br />
(W/H/M, H/M)<br />
2set<br />
(W/H/M, H/M)<br />
2set<br />
(W/H/M, H/M)<br />
2set<br />
(W/H/M×2)<br />
1.45V to 5.50V<br />
2set<br />
(W/H/M, H/M)<br />
1.45V to 5.50V<br />
2set<br />
(W/H/M, H/M)<br />
0.5s to<br />
1Month<br />
0.5s to<br />
1Month<br />
0.5s to<br />
1Month<br />
0.5s to<br />
1Month<br />
0.5s to<br />
1Month<br />
0.5s to<br />
1Month<br />
CMOS output with<br />
control pin<br />
CMOS output with<br />
level shifter<br />
1.35V<br />
1.35V<br />
CMOS output with<br />
level shifter<br />
1.35V<br />
Nch open drain output<br />
(Controllable by command)<br />
CMOS output<br />
—<br />
(Controllable by command)<br />
CMOS output with<br />
control pin<br />
2.1V or 1.6V<br />
Nch open drain output<br />
(Controllable by command)<br />
2.1V or 1.6V<br />
ECO mode is set<br />
by register.<br />
ECO mode is set<br />
by pin.<br />
2.7V<br />
Built-in event<br />
(tamper) detection.<br />
32768Hz/32000Hz<br />
crystal selectable.<br />
*1) For secondary battery or capacitor *2) For secondary battery or capacitor, built-in VR for charger *3) Time keeping current can be reduced in ECO mode.
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