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UM9559 series datasheets. Manufacturer: United Microelectronics Corp..
UM9559E | DC supply voltage: +10.5V; 1000mW; tone dialer. For telephone dialing systems in 16-pin DIP package. Operational temperature range from -25°C to 70°C. | Datasheet*) |
UM9559F | DC supply voltage: +10.5V; 1000mW; tone dialer. For telephone dialing systems in 16-pin DIP package. Operational temperature range from -25°C to 70°C. | Datasheet*) |
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