參數(shù)資料
型號: LC74736PT
元件分類: 畫面疊加
英文描述: ON-SCREEN DISPLAY IC, PQFP100
封裝: 14 X 14 MM, TQFP-100
文件頁數(shù): 6/106頁
文件大?。?/td> 405K
代理商: LC74736PT
LC74736PT
No.A0569-103/106
(3) External ROM (QVGA: 16384 characters, WVGA: 4096 characters)
×16 types, 16M
1) Conditions
QVGA mode
Access time = 2
× dot clock frequency or shorter
Example: DCLK = 10MHz = 100ns
×2 = 200ns or shorter
WVGA mode
1) Access time =3
× dot clock frequency or shorter, with display limitations
Example: DCLK = 33MHz = 30ns
×3 = 90ns or shorter
2) Access time =2
× dot clock frequency or shorter, with display limitations
Example: DCLK = 33MHz = 30ns
×2 = 60ns or shorter
3) Access time =1
× dot clock frequency or shorter
Example: DCLK = 33MHz = 30ns
×1 = 30ns or shorter
2) ROM map
QVGA
Address
Data
A19 to A0
D15 to D0
Used
A19 to A6 (14 bits) = 16384 characters = character codes
Color information
11
10
01
00
16 dots
N4
N3
N2
N1
16 dots
A5 to A2
A1 to A0
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