BU8307CF Rohm, BU8307CF Datasheet - Page 15

• Manufacturer Part Number: BU8307CF
• Description: Pulse / tone dialer for telephone set
• Manufacturer: Rohm

Communication ICs
BU8307CS / BU8307CF
FOperation notes
The reset circuits in the IC could fail to operate properly,
depending on the way the supply voltage rises when
power is applied. To avoid problems, we recommend ad-
ding a circuit to the HS pin, as shown in the diagram be-
low. (There is no need for this circuit, however, if the HS
pin momentarily goes HIGH by some other means, for
example, by CPU control.)
FApplication example
177