Controller:

-8 bit configuration

-18 MHz internal clock

-0.33 us instruction cycle

-eight 16-bit data pointer registers (DPTR)

-two 16-bit timers

-watchdog timer

-serial interface (UART)

-256 bytes on-chip RAM

-1 Kbyte on-chip extended RAM (access via MOVX)

-8 Kbyte on-chip ACQ-buffer-RAM (access via MOVX)

-6 channel 8-bit pulse width modulation unit

-2 channel 14-bit pulse width modulation unit

-4 multiplexed ADC inputs with 8-bit resolution

-one 8-bit I/O port with open drain output and optional I2C emulation

-two 8-bit multifunctional I/O ports

-one 4-bit port working as digital or analog inputs

-one 2-bit I/O port with optional address latch enable function

P-SDIP 52 package

5 V supply voltage

(3)Block Diagram

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Daewoo 21T1, 21Q2, 21Q1, 14T2, 21Q4, 14Q2, 20Q1, 14Q1, 21T2, 20Q3, 14T1 Controller, Sdip 52 package Supply voltage Block Diagram