ML63189B datasheet(3/36 Pages) OKI

Part #	ML63189B

Description	4-Bit Microcontroller with Built-in 1024-Dot Matrix LCD Drivers and Melody Circuit, Operating at 0.9 V (Min).

PDF	36 Pages

Scroll/Zoom	100%

Manufacturer	OKI [OKI electronic componets]

Direct Link	http://www.oki.com

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3 / 36 page

¡ Semiconductor

ML63187/63189B

3/35

• Power supply backup

Backup circuit (voltage multiplier) enables operation at 0.9 V minimum

• Timers and counter

8-bit timer ¥ 4

Selectable as auto-reload mode/capture mode/clock frequency measurement mode

Watchdog timer ¥ 1

100 Hz timer ¥ 1

Measurable in steps of 1/100 sec.

15-bit time base counter ¥ 1

1, 2, 4, 8, 16, 32, 64, and 128 Hz signals can be read

• Shift register

Shift clock

: 1 ¥ or 1/2 ¥ system clock, timer 1 overflow,

external clock

Data length

: 8 bits

• Interrupt sources

ML63187

External interrupt

: 2

Internal interrupt

: 12 (watchdog timer interrupt is a nonmask-

able interrupt)

ML63189B

External interrupt

: 3

Internal interrupt

: 12 (watchdog timer interrupt is a nonmask-

able interrupt)

• Operating temperature

–20 to +70

°C

• Operating voltage

When backup used

: 0.9 to 2.7 V

(Operating frequency: 30 to 80 kHz)

1.2 to 2.7 V

(Operating frequency: 300 to 500 kHz)

1.5 to 2.7 V

(Operating frequency: 200 kHz to 1 MHz)

When backup not used

: 1.8 to 5.5 V

(Operating frequency: 200 kHz to 2 MHz)

• Package:

128-pin plastic QFP (QFP128-P-1420-0.50-K) : (Product name: ML63187-xxxGA,

ML63189B-xxxGA)

Chip

: ML63187-xxx, ML63189B-xxx

xxx indicates a code number.

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