GENERAL DESCRIPTION

The MSM6352 is a high-performance 4-bit microcontroller employing complementary metal oxide semiconductor technology. The use of this device for a repertory telephone, which employed a conventional microcomputer that was difficult to be configured in a single-chip device, allows a compact and high-performance telephone set to be monufactured easily.

FEATURES

• Lower power consumption

• Mask ROM : 2048 x 14 bits

• ROM : 640 x 4 bits

• I/O port

Input-output port : 1 port x 4 bits

Input port : 3 ports x 4 bits

Output port : 3 ports x 4 bits

• DTMF generator

• Built-in programmable timer

Applicable for dial pulse output

(Positive phase/negative phase, 34/40, 10 pps/20 pps selectable)

• Watch dog timer

• Stack : 5 Level

• Power down by STOP instruction

• Instructions useful for data management (data search and block data transfer)

• Operating voltage : 2.0 to 5.5V (2.2 to 5.5V in Tone mode)

• 3.58 MHz oscillator

• Instruciton execution time :17.9 ms

• Package options:

28-pin plastic DIP (DIP28-P-600-2.54) : (Product name: MSM6352-xxRS)

40-pin plastic DIP (DIP40-P-600-2.54) : (Product name: MSM6352-xxRS)

42-pin plastic shrink DIP (SDIP42-P-600-1.78) : (Product name: MSM6352-xxSS)

44-pin plastic QFP (QFP44-P-910-0.80-K) : (Product name: MSM6352-xxGS-K)

44-pin plastic QFP (QFP44-P-910-0.80-2K) : (Product name: MSM6352-xxGS-2K)

xx indicates the code number.