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Built-in frequency
adjusted 32.768 kHz crystal unit.
Compliant with I 2C high-speed bus specifications.(400
kHz)
Alarm and Timer IRQ function are Available.
32.768 kHz clock frequency output. (Duty 50  5 %)
Automatic adjustment for leap year.(2000 to 2099)
Low backup current : 0.45  A
/ 3 V (Typ.)
Wide operating voltage range : 1.8 V to 5.5 V
Wide timekeeper voltage range : 1.6 V to 5.5 V
Available as small package. (NB:SON 22-pin)
*I 2C-Bus is a trademark of NXP Semiconductors |
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| Package size : |
(RX-8581SA) 10.1 x 7.4 x 3.2t (mm Typ.) |
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(RX-8581JE) 7.3 x 6.2 x 1.5t (mm Max.) |
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(RX-8581NB) 6.3 x 5.2 x 1.4t (mm Max.) |
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| Frequency tolerance |
523x10-6
*1 |
| Operating temperature |
-40  to +85 |
| Power voltage |
1.8 V to 5.5 V |
| Clock voltage |
1.6 V to 5.5 V |
*1:Equivalent to 60 seconds of
monthly deviation (excluding offset.) |
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| RX-8581SA/JE/NB |
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| RX-8581SA/JE/NB |
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