ML63187-XXX 查看數據表（PDF） - Oki Electric Industry

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ML63187-XXX

ML63187-xxx

Oki Electric Industry 

¡ Semiconductor

ML63187/63189B

• Stack level

Call stack level

Register stack level

: 16 levels

: 16 levels

• I/O ports

Input ports: Selectable as input with pull-up resistor/input with pull-down resistor/high-

impedance input

Input-output ports: Selectable as input with pull-up resistor/input with pull-down resistor/

high-impedance input

Selectable as P-channel open drain output/N-channel open drain

output/CMOS output/high-impedance output

Can be interfaced with external peripherals that use a different power supply than this device

uses.

Number of ports:

ML63187

Input-output port

: 2 ports ¥ 4 bits

ML63189B

Input port

: 1 port ¥ 4 bits

Input-output port

: 4 ports ¥ 4 bits

• Melody output

Melody frequency

Tone length

Tempo

Melody data

Buzzer driver signal output

: 529 to 2979 Hz

: 63 types

: 15 types

: Resides in the program memory

: 4 kHz

• LCD driver

Number of segments

: 1024 Max. (64 SEG ¥ 16 COM)

1/1 to 1/16 duty

1/4 or 1/5 bias (regulator built-in)

Selectable as all-ON mode/all-OFF mode/power down mode/normal display mode

Adjustable contrast

• Reset function

Reset through RESET pin

Power-on reset

Reset by low-speed oscillation halt

• Battery check

Low-voltage supply check

The value of the judgment voltage is selected by the software by setting the LD1 and LD0 bits

of BLDCON.

LD1

LD0

0

0

0

1

1

0

1

1

Judgment Voltage (V)

1.05 ±0.10

1.20 ±0.10

1.80 ±0.10

2.40 ±0.10

Remarks

Ta = 25°C

Ta = 25°C

Ta = 25°C

Ta = 25°C

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