BU8313K Rohm, BU8313K Datasheet
BU8313K
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BU8313K Summary of contents
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... Panel interface BU8310AK / BU8311KS / BU8313K The BU8310AK, BU8311KS, and BU8313K are large-scale integrated circuits for telephones, which enable a serial in- put / output interface between the key input required for telephone panel boards and LED control functions. They reduce the number of wiring harnesses needed between the main board in the telephone and the panel board, and take some of the processing load off the main CPU ...
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... Communication ICs FBlock diagram 278 BU8310AK / BU8311KS / BU8313K ...
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... Communication ICs BU8310AK / BU8311KS / BU8313K 279 ...
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... Communication ICs FAbsolute maximum ratings (Ta = 25_C) FRecommended operating conditions FPin descriptions 280 BU8310AK / BU8311KS / BU8313K ...
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... Communication ICs FInput / output circuits BU8310AK / BU8311KS / BU8313K 281 ...
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... Communication ICs FElectrical characteristics DC characteristics (unless otherwise noted,Ta = 25_C characteristics (unless otherwise noted 25_C, V 282 BU8310AK / BU8311KS / BU8313K = 5V) DD ...
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... Communication ICs Serial data output timing Serial data input timing BU8310AK / BU8311KS / BU8313K 283 ...
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... Communication ICs FData formats (Serial data is input and output with the MSB coming first.) (1) Reading key data (2) Data register write command (3) Pattern register write command (4) All LEDs valid command (5) All LEDs invalid command 284 BU8310AK / BU8311KS / BU8313K ...
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... Communication ICs (6) Register reset command FEntering data settings (1) Setting operands (2) Setting the blink cycle FDriver internal equivalent circuit (for 1 bit) BU8310AK / BU8311KS / BU8313K 285 ...
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... Communication ICs FRecommended method for inputting / outputting data (1) Serial output of key data (2) Serial input of LED control commands 286 BU8310AK / BU8311KS / BU8313K ...
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... When a different key is pressed from the one already pressed turned temporarily to provide notification of the change. (6) Operation states in response to RST, KSCN and ENA pin input BU8310AK / BU8311KS / BU8313K (3) When the power supply is turned on, the internal reg- isters should be reset using either RST pin input or the register reset command. ...
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... Communication ICs FExternal dimensions (Units: mm) 288 BU8310AK / BU8311KS / BU8313K ...