Electronic Components Datasheet Search |
|
STV7623 Datasheet(PDF) 6 Page - STMicroelectronics |
|
STV7623 Datasheet(HTML) 6 Page - STMicroelectronics |
6 / 27 page Functional description STV7623 6/27 Doc ID 018939 Rev 1 2 Functional description The STV7623 includes all the logic and power circuits necessary to drive the thin-film transistor (TFT) of an active matrix display backplane. A low-voltage logic block manages data information, and a high-voltage block converts the low-voltage information stored in the logic block into high-voltage signals applied to the display gate lines. 2.1 Device operation In the condition of DIR=L, the STV1 start pulse input is sensed at the rising edge of CLK and stored in the first stage of shift register, which causes the first scan signal is outputted from the OUT1 output pin. While stored data is transferred to the next stage of the shift register at the rising edge of the CLK signal, new data of STV1 is sensed and stored simultaneously. The output pin (OUT1 to OUT480) supplies VP or VN voltage to the gate lines depending on the data stored in the shift register. For normal operation, a VP voltage is outputted one by one like a shift token from OUT1 to OUT480, in sync with CLK pulse. STV2 goes up to high level at the 400/480th falling edge of CLK and goes down to low level at the 401/481th falling edge of CLK. This STV2 is connected to the next driver IC STV1 signal to cascade (daisy chain) them. When STV2 is an output, the signal is activated for 1/2 clock later. When the chip is configured in 400 output mode, only the first 400 bits entering the shift register are used, the remaining 80 outputs are removed from the shift register. Figure 3. Example of input/output timing DIR = H 1 2 3 4 5 6 7 479 480 481 482 CLK STV1 BLANK OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT480 STV2 Example of input/output timing (DIR=0) |
Similar Part No. - STV7623 |
|
Similar Description - STV7623 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |