4-wire Serial Interface (SPI Bus)
- 4-wire Serial Interface (SPI Bus)
- 3-wire Serial Interface
- 2-wire Serial Interface (I2C Bus)
| Product Name |
Time Keeping Current Typ. |
Time Keeping Voltage |
Alarm Function |
Perodic Interupt Function |
32kHz Clock Output | Battery Checker |
Clock Adjust Function |
OSC Halt Sensing |
Back-up battery switch-over circuit |
VD with DELAY Function |
Others | Package | Data Sheet (PDF) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| R2043K/T | 0.45µA (at 3V) |
Typ. 0.66V to 5.50V Worst.1.0V to 5.5V |
2set (W/H/M, H/M) |
0.5s to 1Month |
Nch Open drain (Controllable by command) |
1.6V or 1.3V |  |
|
FFP12 R2043K TSSOP10G R2043T |
 |
|||
| R2045S/D | 0.48µA (at 3V) |
1.15V to 5.50V | 2set (W/H/M, H/M) |
0.5s to 1Month |
Nch Open drain (Controllable by command) |
2.1V or 1.3V | |
|
Built-in crystal unit Frequency Deviation (0±5ppm) |
SOP14 R2045S SON22 R2045D |
|
||
| Rx5C348A | 0.35µA (at 3V) |
1.45V to 5.50V | 2set (W/H/M, H/M) |
0.5s to 1Month |
Nch Open drain (Controllable by command) |
2.1V or 1.6V | |
|
1.41MB |
||||
| Rx5C348B | 0.55µA (at 3V) |
Nch Open drain (Keeping output enabled) |
- *All PDF files are less than 1MB unless otherwise stated.
- *If you don't have Adobe Reader, you can download free.
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