BU34440 Datasheet (Rohm) - Single-chip 4-bit microcontroller

BU34440, Single-chip 4-bit microcontroller

BU34440 103 Optical disc ICs FInput / output circuits BU34440 104 Optical disc ICs FElectrical characteristics (unless otherwise noted, Ta = 25_C, VDD = 5V) BU34440 105 Optical disc ICs FElectrical characteristics (unless otherwise noted, Ta = 25_C, VDD = 3V) BU34440 106 Optical disc IC

BU34440 Features

* 1) Low-voltage, high-speed operation (VDD=2.3 X 5.5V at 4.4MHz). 2) 4k byte ROM, 256 nibble RAM. 3) Internal 8-bit SIO (LSB first). 4) 14 programmable pull-up input / outputs. 5) 5 programmable pull-up inputs. FAbsolute maximum ratings (Ta = 25_C) FRecommended operating conditions (Ta = 25_C) 101