BU34440 Rohm, BU34440 Datasheet
BU34440
Related parts for BU34440
BU34440 Summary of contents
Page 1
... Optical disc ICs Single-chip 4-bit microcontroller for CD-DA BU34440 The BU34440 is a single-chip 4-bit microcontroller designed for CD-DA and contains parallel serial tim counter and all other functions required for CD control in a single compact package. FApplications Portable CD-DA devices, portable CD stereos FFeatures 1) Low-voltage, high-speed operation ( ...
Page 2
... Optical disc ICs FBlock diagram 102 BU34440 ...
Page 3
... Optical disc ICs FPin descriptions BU34440 103 ...
Page 4
... Optical disc ICs FInput / output circuits 104 BU34440 ...
Page 5
... Optical disc ICs FElectrical characteristics (unless otherwise noted 25_C 5V) DD BU34440 105 ...
Page 6
... Optical disc ICs FElectrical characteristics (unless otherwise noted 25_C, V 106 = 3V) DD BU34440 ...
Page 7
... ROM data table function (data table area : 4kB) FExternal dimensions (Units: mm) =2.3 X (7) Two energy-saving modes (STOP / HALT) DD (8) Internal 8-bit timer counter (9) Internal serial simplifying interface with at- tached LSIs (LSB first) (10) 14 programmable pull-up input / outputs (11) 5 programmable pull-up inputs BU34440 107 ...