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EM73P968 датащи(PDF) 35 Page - ELAN Microelectronics Corp

номер детали EM73P968
подробное описание детали  4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
PDF  53 Pages
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производитель  EMC [ELAN Microelectronics Corp]
домашняя страница  http://www.emc.com.tw
Logo EMC - ELAN Microelectronics Corp

EM73P968 датащи(HTML) 35 Page - ELAN Microelectronics Corp

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* This specification are subject to be changed without notice.
EM73P968
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
8.14.2001
Preliminary
LCD DRIVER
EM73P968 can directly drive the liquid crystal display (LCD) and has 52 segment and 4 or 5 common output
pins by mask option. There are total 52x4 or 52x5 dots can be display. The VRLC pin is the LCD driver power
input, there is the voltage of (VCC-VRLC) to LCD.
P17.0 share with com 4. When the mask option select 1/4 duty, the P17.0 is an output pin and LCD have 4
common. When the mask option select 1/5 duty, the P17.0 is a LCD pin and LCD have 5 common.
LCD driver control command register (P27) :
Port27
3210
Initial value : 0000
LDC *
*
*
LDC
LCD display control
0
LCD display disable
1
LCD display enable
* : Don't care.
Example :
LDIA
#1000B
; enable LCD, reference voltage of LCD is 1.5V.
OUTA P27
:
LDIA
#0000B
; disable LCD
OUTA P27
LCD RAM
20H-2CH
30H-3CH
40H-4CH
50H-5CH
60H-6CH
COM0
COM1
COM2
COM3
COM4
01234
5
6789
AB
CD
E
F



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