MSM9000B 데이터 시트보기 (PDF) - Oki Electric Industry

부품명

상세내역

제조사

MSM9000B

DOT MATRIX LCD CONTROLLER

Oki Electric Industry 

¡ Semiconductor

FEDL9000B-01

MSM9000B-xx

• XT (Crystal)

Input pin for crystal oscillation. By connecting a 32.768-kHz crystal and capacitors to this pin

and the XT pin, a crystal oscillation circuit is formed. When an external clock is used, input

the clock to the XT pin.

• XT (Crystal)

Output pin for crystal oscillation. By connecting a 32.768-kHz crystal and capacitors to this

pin and the XT pin, a crystal oscillation circuit is formed. When the external clock is used,

leave this pin open.

XT

XT

32.768 kHz

18 pF

18 pF

XT

External

clocks

XT

OPEN

When forming a crystal oscillation circuit

When inputting an external clock

Oscillation circuit diagram

• P/S (Parallel/Serial Select)

Input pin to choose between the parallel interface and serial interface. To select the parallel

interface, make this pin low. To select the serial interface, make this pin high. After power

is turned on, do not change the setting of this pin.

• 9D/16D (Duty Select)

Input pin to set a duty cycle. When this pin is set to "H", a duty cycle of 1/9 is selected.

When the pin is set to "L", a duty cycle of 1/16 is selected. Choose either according to the panel

to be used. When a duty cycle of 1/9 is chosen, leave common output pins COM10 to COM16

open.

• 32K/EXT (Clock Select)

Input pin to choose crystal oscillation mode or external clock input mode. Leave this pin at

a "L" level.

• RESET (Reset)

Reset signal input pin. Setting this pin to L results in the initial state. For modes and the

display after a reset input, see "Mode Settings after a Reset Input".

• N1, N2 (Contrast Change)

Input pins that determine the voltages of VSS2 and VSS3 together with contrast adjustment by

a command. The table below shows the relationships between pin states and contrast

adjustment ranges.

12/39

Share Link: