BU24591

Features:

1) Low voltage, high-speed operation (VDD=2.3 to 3.6V at 4.4MHz)
2) Built-in 8bit 8-channel AD converter
3) Built-in pulse width counter
4) Built-in two lines of SIO
5) Built-in LCD controller driver with 20 segments, 4 common (With 3 common available)
6) All segment output of LCD controller driver can be switched into CMOS output by the program.


Application

Portable CD-DA, CD radio cassette player


Pinout




Specifications

Parameter	Symbol	Limits	Unit
Applied voltage	VDD	-0.3 to +4.5	V
Power dissipation	Pd	500*	mW
Operating temperature range	Topr	-25 to +75
Storage temperature range	Tstg	-55 to +125

* Reduced by 5mW for each increase in Ta of 1 over 25.


Description

The BU24591 is a 4bit 1chip micro-controller for CD-DA that integrates multiple I/O, such as 8bit 8-channel AD converter, pulse width counter, two lines of SIO, and LCD controller driver with 80 segment (Max.). All LCD segment can be switched into CMOS output by the program. These I/O BU24591 achieves multi-function with few pins.