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Features
• Operating voltage 3.0-5.5V
• Built-in RC oscillator
• Max. 12 SEG and 8 GRID(Number of SEG pins in different packages)
• SEG pins connect to LED Anode , GRID pins connect to LED Cathode
• I2C bus interface,I2C slave address can be configured through IO pins
• 16-level brightness control
• Max. 10 × 3 key scan
Key display multiplexing requires hardware circuit
Supporting combination keys requires circuit
• Read/Write address auto increment
• Dispaly mode 12x8
• Power-On Reset(POR)
• Versatile blinking modes
• Standby mode
• High driving current, suitable for highlighted applications
• Package:
SOP24(300mil)(15.40mm x 7.50mm PP=1.27mm)·
February 2020
Rev. 1.2
VK16K33B
12×8 LED DRIVER
www.szvinka.com
1/21
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Summary of Contents for VINKA VK16K33B
- Page 1 VK16K33B 12×8 LED DRIVER Features • Operating voltage 3.0-5.5V • Built-in RC oscillator • Max. 12 SEG and 8 GRID(Number of SEG pins in different packages) • SEG pins connect to LED Anode , GRID pins connect to LED Cathode •...
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Page 2: General Description
12×8 LED DRIVER General Description The VK16K33B is a memory mapping and multi-function LED controller driver. The max. Display segment numbers in the device is 96 patterns (12 SEG x 8 GRID) with a 10×3 (MAX.) matrix key scan circuit. The software configuration features of the VK16K33B makes it suitable for multiple LED applications including LED modules and display subsystems. -
Page 3: Pinouts And Pin Description
VK16K33B 12×8 LED DRIVER Pinouts and pin description 2.1 VK16K33B SOP24 Pin Assignment GRID0/AD GRID1/KS0 GRID2/KS1 SEG0/A1 SEG1/A0 GRID3/KS2 TOP VIEW GRID4 SEG2/K1 GRID5 SEG3/K2 SOP24 GRID6 SEG4/K3 GRID7 SEG5/K4 SEG11/K10/INT SEG6/K5 SEG10/K9 SEG7/K6 SEG9/K8 SEG8/K7 Rev. 1.2 February 2020 3/21 www.szvinka.com... - Page 4 VK16K33B 12×8 LED DRIVER VK16K33B SOP24 Pin Description Name Function Negative power supply LED GRID outputs（N-MOS open drain ） GRID0/AD I2C slave address source output pin, active high during power on and key scan GRID1/KS0- LED GRID outputs（N-MOS open drain ）;...
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Page 5: Functional Description
VK16K33B 12×8 LED DRIVER 3 Functional Description 3.1 Block diagram dispaly RAM GRID7 Controller GRID4 GRID3/KS2 Timing LCD driver/ GRID1/KS0 generator key Scan/ GRID0/AD I2C address set/ SEG0/A1 SEG1/A0 SEG2/K1 Key RAM SEG11/K10/INT 16-level brightness control Rev. 1.2 February 2020 5/21 www.szvinka.com... -
Page 6: Power-On Reset Timing
VK16K33B 12×8 LED DRIVER 3.2 Power-On Reset When the power is applied, the device is initialized by an internal power-on reset circuit. Data transfers on the I2C bus should be avoided for 1 ms following power-on. The status of the internal circuits after initialization is as follows: ●... - Page 7 3.3 Standby Mode & Wake-up Standby Mode In the standby mode, the VK16K33B can not accept input commands nor write data to the display RAM except using the system setup command. If the standby mode is selected with the bit0 of the System Set Command set to “0”, the status of the standby model is as follows: ●...
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Page 8: Display Ram
VK16K33B 12×8 LED DRIVER 3.4 Display RAM The static display memory (RAM) is organized into 16×8 bits and stores the displayed data.The contents of the RAM are directly mapped to the contents of the LCD driver. Display address is 0x00-0x0F,the RAM size is 16 bytes.If you want to lighted on or off an LED, only set or clear the corresponding display RAM... - Page 9 VK16K33B 12×8 LED DRIVER INT flag Register： Function INTflag Register key press flag bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 address bit7-bit0 set 1when 0x60 key press,when all flag flag flag flag flag flag flag flag key read clear 0.
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Page 10: Key Combination
VK16K33B 12×8 LED DRIVER 3.5.3 Key Combination When pressing three or more times is assumed,each combination key is required to connect diodes in series,shown as below K9 K10 K11 K12 K13 When pressing twice is assumed,KS0-KS2 is required to connect diodes in series,shown as below: K9 K10 K11 K12 K13 Note：In this circuit, pressing three or more times may cause the OFF switches to be determined as... - Page 11 VK16K33B 12×8 LED DRIVER 3.6 Communication Command 3.6.1 I2C Serial Interface The device supports I2C serial interface. The two lines are a serial data line, SDA, and a serial clock line, SCL. Both lines are connected to the positive supply via pull-up resistors with a typical value of 4.7k. When the bus is free, both lines are high.
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Page 12: Write Command
VK16K33B 12×8 LED DRIVER 3.6.3 I2C Command Format 3.6.3.1 Write Operation Write Command Slave Addr Cmd byte A2 A1 A0 0 D7 D6 D5 D4 D3 D2 D1 Write Display RAM Single Data Byte Slave Addr RAM Addr byte Data byte... -
Page 13: Command Summary
VK16K33B 12×8 LED DRIVER 3.6.6 Command Summary 3.6.4 .1 System Set Command This command is used to set the work mode: Normal mode or Standby mode. Function Note bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 Standby mode(OSC off) system oscillator... - Page 14 VK16K33B 12×8 LED DRIVER 3.6.4.3 Display Address Set Command Set the address of the Display RAM (0x00 - 0x0f). When powered on, the address is set to 0x00(default). bit0 DisplayRAM Addr bit7 bit6 bit5 bit4 bit3 bit2 bit1 0x00 0x01...
- Page 15 VK16K33B 12×8 LED DRIVER Command application 3.7.1 Initialize configuration During power on, the power on reset sequence shall be met. After power on, the parameters shall be configured first. Config parameters through a series of commands. The command sequence is as follows:...
- Page 16 VK16K33B 12×8 LED DRIVER 3.7.3 Key Read Command It is recommended that the key data RAM is read only and should be started form address 0X40 only, the key data RAM of address 0X40~0X45 should be read continuously and in one operation.
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Page 17: Application Circuits
VK16K33B 12×8 LED DRIVER Application Circuits 100uf 100nf GRID0 GRID0/AD GRID0/AD GRID1 GRID1/KS0 GRID2 SEG0 GRID2/KS1 SEG0/A1 GRID3 SEG1 GRID3/KS2 SEG1/A0 GRID4 SEG2 GRID4 SEG2/K1 GRID5 SEG3 GRID5 SEG3/K2 SEG0/A1 100p 100p GRID6 SEG4 GRID6 SEG4/K3 GRID7 SEG5 GRID7 SEG5/K4... -
Page 18: Electrical Characteristics
VK16K33BA 12×8 LED DRIVER Electrical characteristics 5.1 Absolute Maximum Ratings Item Symbol Ratings Unit VSS-0.3V to VSS+6.5 Power voltage VSS-0.3V to VDD+0.3 Input Voltage Storage Temperature ℃ -50～+120 Operating Temperature ℃ -40～+85 5.2 DC Characteristics Symbol Item Min. Typ. Max. Unit Test Conditions Conditions... - Page 19 VK16K33B 12×8 LED DRIVER 5.3 AC Characteristics Test Conditions Item Symbol Min. Max. Unit Conditions — Clock Frequency Time in which the bus must be free before μs Bus Free Time a new transmission can start After this period, Start Condition μs...
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Page 20: Package Information
VK16K33B 12×8 LED DRIVER Package Information 6.1 SOP24 (300mil) (15.40mm x 7.5mm PP=1.27mm) 厂 BASE METAL WITH PLATING MILLIMETER SYMBOL 2.64 0.10 0.30 0. 39 0.47 0.38 0.41 0.44 0.25 0.29 0.24 0.26 0.25 15.30 15.40 15.50 10.10 10.30 10.50 7.40... -
Page 21: Revision History
Update content Disclaimers Information in this document is believed to be accurate and reliable. However, VinKa does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information. VinKa reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice.
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