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BT9151 and 1200p60


HA

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You are pretty lucky HA :D . Here is what i found:

BT9151 is equivelant to UM9151 and it is a Pulse Dialer with direct Phone line operation. 4 * 3 matrix keyboard interface. Supply voltage range of 2 to 5.5 V. 22 digit redial memory. Selectable make/break ratio. High speed test capacity.





and this is a usage schematic:



I attach you also the UM9151 Datasheet

UM9151-3.pdf

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