BU9768AKV

Number of Digits :
Maximum Operating Temperature : + 85 C
Packaging : Bulk
Maximum Clock Frequency : 76 KHz
Operating Supply Voltage : 4.5 V to 6 V
Maximum Power Dissipation : 750 mW
Number of Segments : 42
Package / Case : VQFP


Features:

· Drive of up to 42 segment outputs, three common outputs, and up to 126 cells is possible.
· Up to 30 keys can be input.
· A maximum of four pins can be used as output pins for expansion.
· 1 / 3 duty drive.
· A bias of 1 / 2 or 1 / 3 can be selected for the LCD display power supply.


Application

·Portable multi-media terminals, POS terminals, wireless radios, telephones, cameras, VCRs, movie projectors, car
stereos, others


Pinout




Specifications

Parameter		Symbol	Pin	Limits	Unit
Power supply voltage		VDD	VDD	0.3 ~ + 7.0	V
Input voltage		VIN	RST, OSC, CS, CK, DI, KI1 ~ KI5	0.3 ~ VDD + 0.3	V
Output voltage		VOUT	OSC, DO, KO1 ~ KO6, EP1 ~ EP4	0.3 ~ VDD + 0.3	V
Output current		IOUT (1)	COM1 ~ COM3	3	mA
		IOUT (2)	EP1 ~ EP4	5	mA
		IOUT (3)	S1 ~ S40	300	A
		IOUT (4)	KO1 ~ KO6	1	mA
Power dissipation	BU9768AK	Pd	-	800	mW*
	BU9768AKV			750
Storage temperature		Tstg	-	55 ~ + 125

Description

The BU9768AK / BU9768AKV are man-machine interface ICs with key input, designed for portable multimedia terminals
and other devices. BU9768AKV can be used as drivers for operation mode display LCD panels on portable terminals,
household products, car stereos, and other appliances. Up to 126 cells can be displayed, and up to 30 keys can be
input.

Also, a maximum of four outputs of BU9768AKV are possible using expansion pins. (The number of outputs for each pin can be
changed using control codes.)