BU8315S Rohm, BU8315S Datasheet
BU8315S
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BU8315S Summary of contents
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... Communication ICs Panel interface BU8315S / BU8315F The BU8315S and BU8315F are LED drivers with a flashing function. They can be connected in series to panel PCBs in equipment such as telephones, facsimile machines, and copying ma- chines, and to microcomputers of main PCBs, and significantly reduce the amount of wiring required. ...
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... Communication ICs FBlock diagram FPin descriptions 290 BU8315S / BU8315F ...
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... Communication ICs FInput / output circuits FElectrical characteristics (unless otherwise noted 25_C, V BU8315S / BU8315F = 3 X 5.5V) DD 291 ...
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... Communication ICs FSerial data input timing FMeasurement circuits 292 BU8315S / BU8315F ...
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... Communication ICs FCircuit operation (1) LED control command data format (for serial data, the MSB is first) (2) Shifts in flashing pattern based on LED control commands (example of data input) (3) Example of serial input of LED control command BU8315S / BU8315F 293 ...
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... When the power supply is turned on, the contents of the register are unstable, so the RST pin should be set to LOW and a reset initiated. FElectrical characteristic curves FExternal dimensions (Units: mm) 294 BU8315S / BU8315F (2) The maximum LED output per bit is 20mA, so that the maximum LED output for a total of 14 bits is 140mA. ...