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Home > Products > 8 bit M8051 Core > LCD

LCD

Description

LCD MCUs are built on 800 Core and have a LCD driver internally.

LCD(Liquid Crystal Display) is a display device which can easily found in various appliances like clock, cooker... etc. ABOV's LCD MCUs have good features with internal LCD driver such as a voltage control feature to adust britness and a 'Dynamic Display' feature for saving I/O pins.

It has OCD(On Chip Debugger) inside. So it is possible to debug when the MCU is attached to system without extra emulator. Just 2 line connection, interface board and free software are requried.

Because of that it is a 8051 compatilbe MCU, every 8051 C compilers can be used such as Keil-C or SDCC.

Rom type description

COMBI

FLASH

OTP

MASK

LCD MCU Selection Guide

1. Multiplies COM(common output) and SEG(segment output) equals number of DOTs which reffers maximum number of displayable dots( basic unit of lcd-display ).
ex) 4COM * 20SEG = 80 DOT( it can display 10 digits ), 8COM*16SEG=96 DOT( it can display 12 digits)
So, you should choose a MCU which has enough DOTs for your purpose. Note that number of COM is a one of LCD's characteristic( we say '4 COM LCD' or '8 COM LCD' to reffer those LCDs ). So you have to make sure that the MCU can support the COM number of the LCD, what you want to use.

2. A Driving voltage level determines contrast of a LCD. And it is different for each LCD. So you have to properly control the supplying voltage for a LCD. Therefor a MCU is suggested that has a 'Voltage Booster Circuit' or a 'Contrast Control Circuit'.

3. Operating Frequency determines LCD's display speed. So it is a good MCU that can choose display period.

4. Please check whether it has sub-clock mode or not and can display LCD with sub-clock or not. A MCU cunsumes less power, when it operates with 32765Hz sub-clock. So it is a usefull feature when your application operates with battery and has to display all the time.

Device List

Part No.	Rom (Byte)	Ram (Byte)	Eeprom (Byte)	Package	ADC	Timer	PWM	I/O	TWI	Uart (SCI)	SIO (SPI)	POR	Int. OSC	Remark	Status
MC96F6832	32k	1.25k	x	80 MQFP 80 LQFP	12 bit * 8 ch	8bit * 2 ch (16bit * 2 ch)	2	70	x	1	1	1	1	34 SEG * 8 COM	NOW
MC96F6632		1.25k		64 LQFP	12 bit * 5 ch	8bit * 2 ch (16bit * 2 ch)	2	54	x	1	1	1	1	23 SEG * 8 COM
MC96F6432		1k		44 MQFP	12 bit * 15 ch	8bit * 3 ch (16bit * 3 ch)	6	42	2	2	2	1	1	21 SEG * 8 COM
MC96F6332				32 SOP	12 bit * 11 ch		6	30	2	2	2	1	1	12 SEG * 4 COM
MC96F6232				28 SOP	12 bit * 10 ch		6	26	2	2	2	1	1	8 SEG * 4 COM
MC96F7816	16k	512		80 MQFP 80 LQFP	12 bit * 8 ch	8bit * 2 ch (16bit * 2 ch)	1	73	x	1	1	1	1	30 SEG * 8 COM Voltage Booster Contrast Controler
MC96P6608	8k	256		64 LQFP	-	8bit * 4 ch (16bit * 2 ch)	x	59	x	x	1	1	1	26 SEG * 8 COM PLL 19.98MHz OCD with EVA chip