參數(shù)資料
型號: ML9090-02
廠商: OKI SEMICONDUCTOR CO., LTD.
英文描述: LCD Driver with Key Scanner and RAM(帶鍵掃描和RAM的LCD驅(qū)動器)
中文描述: LCD驅(qū)動器與關(guān)鍵掃描儀和內(nèi)存(帶鍵掃描和內(nèi)存的液晶驅(qū)動器)
文件頁數(shù): 1/35頁
文件大?。?/td> 302K
代理商: ML9090-02
Semiconductor
ML9090-01,-02
1/35
LCD Driver with Key Scanner and RAM
GENERAL DESCRIPTION
The ML9090-01 and ML9090-02 are LCD drivers that contain internal RAM and a key scan
function. They are best suited for car audio displays.
Since 1-bit data of the display RAM corresponds to the light-on or light-off of 1-dot of the LCD
panel (a bit map system), a flexible display is possible.
A single chip can implement a graphic display system of a maximum of 80
16 dots (80
8 dots
for the ML9090-01, 80
16 dots for the ML9090-02) and an arbitrator display system of 80
2 dots.
Since containing voltage multipliers, the ML9090-01 and ML9090-02 require no power supply
circuit to drive the LCD.
Since the internal 5
5 scan circuit has eliminated the needs of key scanning by the CPU, the ports
of the CPU can be efficiently used.
FEATURES
Logic voltage: V
DD
2.7 to 5.5 V
LCD drive voltage: V
BI
6 to 16 V (positive voltage)
80 segment outputs,10 common outputs for ML9090-01 and 18 common outputs for ML9090-
02
Built-in bit-mapped RAM (ML9090-01: 80
10 = 800 bits, ML9090-02: 80
18 = 1440 bits)
4-pin serial interface with CPU:
CS
,
CP
, DI/O, KREQ
Built-in LCD drive bias resistors
Built-in voltage doubler and tripler circuits
Built-in 5
5 key scanner
Port A output: 1 pin, output current: -15mA: (may be used for LED driving)
Port B output: 8 pins, output current -2mA: each pin (general-purpose outputs), available for
the ML9090-01 only
Temperature range: –40 to +85C
Package: 128-pin plastic QFP (QFP128-P-1420-0.50-K)
(Product name: ML9090-01GA)
(Product name: ML9090-02GA)
Peimnay
Model
ML9090-01
1/9
9
8
ML9090-02
1/17
17
Display duty
No. of display lines
No. of port B outputs
1/8
8
8
1/10
10
8
1/16
16
1/18
18
APPLICATION
Car audio
J2B0049-18-70
This version: Jul. 1998
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