GENERAL DESCRIPTION
This data sheet details the specific properties of the PCD3359A. The shared properties of the PCD33xxA family of microcontrollers are described in the “PCD33xxA family” data sheet, which should be read in conjunction with this publication.

FEATURES
• 8-bit CPU, ROM, RAM, EEPROM and I/O; in a single 28-lead or 32-lead package
• 2-kbyte ROM
• 64-byte RAM
• 128-byte EEPROM
• OTP version available
• Over 100 instructions (based on MAB8048) all of 1 or 2 cycles
• 20 quasi-bidirectional I/O port lines
• 8-bit programmable Timer/event counter 1
• 8-bit reloadable Timer 2
• Three single-level vectored interrupts:
   – external
   – 8-bit programmable Timer/event counter 1
   – derivative; triggered by reloadable Timer 2
• Wake-up via external or Port 0 interrupt
• Two test inputs, one of which also serves as the external interrupt input
• DTMF, modem, musical tone generator
• Reference for supply and temperature-independent tone output
• Filtering for low output distortion (CEPT compatible)
• Melody output for ringer application
• Power-on-reset
• Stop and Idle modes
• Supply voltage: 1.8 to 6 V (DTMF tone output and EEPROM erase/write from 2.5 V)
• Clock frequency: 1 to 16 MHz (3.58 MHz for DTMF suggested)
• Operating temperature: −25 to +70 °C
• Manufactured in silicon gate CMOS process.