MSM6544 Datasheet, PDF (1/12 Pages) OKI electronic componets – 42-DOT LCD DRIVER

E2B0009-27-Y2
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MSM6544
42-DOT LCD DRIVER
This version: N_Mov_S._M19₆9₅7₄₄
Previous version: Mar. 1996
GENERAL DESCRIPTION
The MSM6544 is a 42-segment duplex driver which can drive the LCD panel up to a maximum
of 84 segments.
Since the package is a 56-pin small QFP, an LCD module can be compactly configured. An
internal RC oscillator is provided for ease of use.
FEATURES
• Power supply voltage (V_DD) : 3 to 6V
• LCD driving voltage
: 3 to V_DD
• Operating temperature
: –40 to +85°C
• Applicable LCD panel
: 1/2 duty, 84 segments (Max)
• Data transmitting clock : 4 MHz (Max)
• Package:
56-pin plastic QFP (QFP56-P-910-0.65-2K) (Product name : MSM6544GS-2K)
BLOCK DIAGRAM
SEG₁
SEG₄₂
BLANK
V_DD1
V_DD2
GND
LOAD
42-DOT SEGMENT DRIVER
42-BIT SELECTOR
L
<A>
42-BIT LATCH
L
<B>
42-BIT LATCH
DATA
DQ
CLOCK
OSC-IN
OSC-C
OSC
OSC-R
42-BIT SI/PO
1/32
COMMON
DRIVER
COM-A
COM-B
V_LCM
V_LCL
1/12