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RICOH ELECTRONIC DEVICES CO., LTD.

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3-wire Serial Interface

Product Name Time Keeping
Current
Typ. (at 3V)
Time Keeping Voltage Alarm Function 32kHz Clock Output Battery Checker Other Features Package Donwload
R2033 0.45 µA Typ. 0.66V to 5.50V
Worst.1.0V to 5.5V
2 Sets
(W/H/M, H/M)
CMOS Output,
with Control Pin
1.6V or 1.3V   QFN023023-16
TSSOP10G
Datasheet
R2061 0.4 µA Typ. 0.75V to 5.50V
Worst.1.0V to 5.5V
2 Sets
(W/H/M, H/M)
- 2.10V or 1.35V VD with DELAY Function,
Back-up Battery Switch-over Function
(Detector Threshold Voltage: 1.7V, 2.4V, 2.8V)
QFN023023-16
SSOP16
Datasheet
R2062 0.4 µA Typ. 0.75V to 5.50V
Worst.1.0V to 5.5V
2 Sets
(W/H/M, H/M)
CMOS Output,
with Level Shifter
2.10V or 1.35V VD with DELAY Function,
Back-up Battery Switch-over Function
(Detector Threshold Voltage: 2.7V, 2.9V)*1
QFN023023-16 Datasheet
R2262 0.3 µA Typ. 0.6V to 5.5V
Worst.0.9V to 5.5V
2 Sets
(W/H/M, H/M)
CMOS Output,
with Level Shifter
1.35V VD with DELAY Function,
Back-up Battery Switch-over Function
(Detector Threshold Voltage: 2.7V)*2
QFN0202-18
TSSOP10G
Datasheet
Rx5C338A 0.35 µA 1.45V to 5.50V 2 Sets
(W/H/M, H/M)
CMOS Output,
with Control Pin
2.1V or 1.6V   SSOP10
SSOP10G
Datasheet

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  • *1For secondary battery or capacitor
  • *2 For secondary battery or capacitor, built-in VR for charger

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