Devices in the 68300 Modular Microcontroller Family are built up from a selection of standard functional

modules. The MC68CK331 incorporates a central processing unit (CPU32), a system integration module

(SIM), a general-purpose timer (GPT), and a queued serial module (QSM).

This publication contains new electrical characteristics for the MC68CK331/MC68CK331PU to be used

in conjunction with the MC68331 User's Manual (MC68331UM/AD).

New features on the MC68CK331 include:

• VDD operating range from 2.7 volts to 3.6 volts

• PLL operation at 16.78 MHz

• 5V tolerant, TTL compatible I/O

An additional feature on the MC68CK331PU includes:

• Reduced pin count (100 pin package)