Available solution development oral arithmetic training machine / math treasure / children's oral arithmetic treasure / intelligent math treasure LCD LCD driver ic-vk1622 (lqfp64 package), original te

A strong youth is a strong country , Young rich are rich , Mr. Liang Qichao's 《 Young China said 》 It is pointed out that children are the future of the motherland , Is the hope of the Chinese nation .

Education is the cornerstone of national rejuvenation and social progress . Oral arithmetic practice machine / Oral arithmetic treasure / Oral arithmetic training machine / Children's math treasure , It is a product for children's oral arithmetic training , It breaks the boredom of traditional exercise books , It can improve children's learning interest and mathematical calculation ability .

VK1622 It is suitable for oral arithmetic training machine LCD Display drive IC, The following is VK1622 Parameter Introduction ：

Product brand ： Yongjia micro electricity /VINKA
Product model ：VK1622
Package form ：LQFP44/48/52/64、QFP64

summary ：VK1622 Is a dot matrix storage mapping LCD Driver , Can support the most 256 spot （32EGx8COM） Of LCD screen . Single chip microcomputer can pass 3/4 Line serial interface configures display parameters and sends display data , You can also enter the power saving mode through the command .

characteristic ：
• Working voltage 2.4-5.2V
• built-in 32 kHz RC oscillator （ Power on default ）
• It can be connected externally 32kHz Clock source （OSCI）
• Bias voltage （BIAS） Fixed for 1/4
• COM cycle （DUTY） Fixed for 1/8
• Built in display RAM by 32x8 position
• The buzzer frequency can be configured to 2kHz、4kHz
• Power saving mode （ Enter... By turning off the display and turning off the oscillator ）
• Time base and watchdog share 1 A clock source , Configurable 8 Two frequencies
• The output pin of time base or watchdog overflow signal is /IRQ foot ( Open a leak )
• 3/4 Line serial interface
• software configuration LCD Display parameters
• Write commands and read and write data 2 Command formats
• The read-write display data address is automatically added 1
• VLCD Feet provide LCD Drive voltage （＜VDD）
• encapsulation ：
LQFP44(10.0mm x 10.0mm PP=0.8mm)
LQFP48(7.0mm x 7.0mm PP=0.5mm)
LQFP52(14.0mm x 14.0mm PP=1.0mm)
LQFP64(7.0mm x 7.0mm PP=0.4mm)
QFP64(20.0mm x 14.0mm PP=1.0mm)
DICE Naked piece