DS-TM8720

FEATURES

1.1.5V operation only and with low power dissipation.

2.Powerful instruction set (86 instructions)

    Binary addition, subtraction, BCD adjustment, logical operation in direct.

    Single-bit manipulation (set, reset, decision for branch).

    Various conditional branches.

    16 working registers and manipulation.

    LCD driver data transfer. 

3.Memory capacity

    ROM capacity 1024 x 16 bits.

    RAM capacity 64 x   4 bits.

4.Input/output ports

    Port IOA         4 pins (with internal pull-low), IOA port has built-in the input signal chattering prevention circuitry.

    Port IOB2, 3, 4    3 pins (with internal pull-low), & mask option with BZB, BZ.

5.4-level subroutine nesting.

6.Interrupt function

    One external factor (Pin IOA port).

    Two internal factors (Pre-Divider, Timer2).

7.Built-in Alarm, clock or single tone melody generator (BZB, BZ), & mask option with IOB3, 4.

8.One 6-bit programmable timer (Timer 2) with programmable clock source.

9.LCD driver output

    12 LCD driver outputs (up to drive 48 LCD segments).

    1/4 Duty and 1/2 Bias for LCD display.

    Single instruction to turn off all segments.

    12 LCD Address

10.Built-in Voltage double charge pump circuit.

11.Clock oscillation can be defined as X’tal, external-R or internal-R 2 type oscillators by mask option.

12.HALT function.

13.STOP function.