1/25

¡ Semiconductor

MSM64152A/64152AL

GENERAL DESCRIPTION

The MSM64152A (1.5 V)/64152AL (3.0 V) is a high-performance 4-bit microcontroller that

incorporates Oki-original CPU core nX-4/20.

The MSM64152A/64152AL has an LCD driver for up to 104 segments, an event counter, and a

melody circuit. It is best suited for applications such as clocks and LCD games.

FEATURES

• Operating range

Operating voltage

: 1.5 V/3.0 V

Operating temperature

: –40 to +70

°C

Operating frequency

: 32.768 kHz crystal oscillation

Approx. 32 kHz RC oscillation

Supply current (Typ.)

: 0.9 mA (3.0 V at HALT mode)

• Minimum instruction execution time : 91 ms

• General memory space

: 1504 bytes

• Local memory space

: 128 nibbles

• LCD driver

: 30

Common driver ¥ 4

Segment driver ¥ 26

1/4 duty, 1/3 bias; 104 segments (26 ¥ 4)

1/3 duty, 1/3 bias; 78 segments (26 ¥ 3)

• I/O port

Input-output port

: 1 port ¥ 4 bits (open-drain output/CMOS output

selectable; pull-down resistor input/high-impedance

input selectable)

Input port

: 1 port ¥ 4 bits (pull-down resistor input/high-impedance

input selectable)

Output port

: 1 port ¥ 4 bits (CMOS output)

• Event counter

: 1 channel

• Melody output

: 1

• Interrupts

: 7 sources

External 2, time base 4, melody 1

• Package:

60-pin plastic QFP (QFP60-P-1519-1.00-K) : (Product name : MSM64152A-¥¥¥GS-K,

MSM64152AL-¥¥¥GS-K)

Chip

: MSM64152A-¥¥¥, MSM64152AL-¥¥¥

¥¥¥ indicates a code number.

• OTP version (for program evaluation) : MSM64P155/64P155L

(The package, power polarity, and operating voltage of the MSM64P155/64P155L are

different from the MSM64152A/64152AL. For details, refer to the "MSM64P155 User's

Manual".)

¡ Semiconductor

MSM64152A/64152AL

4-Bit Microcontroller with Built-in LCD Driver and Melody Circuit

E2E0028-38-95

This version: Sep. 1998

Previous version: Mar. 1996