BU34440 - Single-chip 4-bit microcontroller

Rohm

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Datasheet Details

Part number	BU34440
Manufacturer	ROHM
File Size	148.57 KB
Description	Single-chip 4-bit microcontroller
Datasheet	BU34440_Rohm.pdf

BU34440 Product details

Description

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 ICs FHardware descriptions (1) Operates on a single power supply (VDD=2.3 X 5.5V).(2) Memory size ROM: 4096 8 bits RAM: 256 4 bits (3) Instruction execution time (1 cycle instruction) 1.5µsec: (at 4MHz

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 Optical disc ICs FBlock diagram BU34440 102 Optical disc ICs FPin.

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Published: Apr 17, 2005 |