INTRODUCTION
The MC68SEC000 is a cost-effective static embedded processor engineered for low-power applications. In addition to providing the substantial cost and performance benefits of the MC68EC000, the low-power mode of the MC68SEC000 provides significant advantages in power consumption and power management. The typical current consumption of the MC68SEC000 is only 0.5µA in static standby mode and 15.0mA in normal 3.3V operation. The MC68SEC000 operates in either 3.3V or 5.0V systems. The remarkably low power consumption, small footprint packages, and static implementation are combined in the MC68SEC000 for low-power applications such as personal digital assistants, portable measuring equipment, electronic games, and batteryoperated hand-held consumer products.

The primary features of the MC68SEC000 embedded processor include the following:
• Direct Replacement for the MC68EC000
   — Pin-for-pin compatibility with the MC68EC000 in the plastic QFP package
   — Vast selection of existing third-party development tools for the MC68EC000 support the MC68SEC000
   — Software written for the MC68EC000 will run unchanged on the MC68SEC000
• Power Management
   — Low power HCMOS technology
   — Static design allows for stopping the processor clock
   — 3.3V or 5V operation
   — Typical 0.5µA current consumption at 3.3V in sleep mode
• Architecture
   — Eight 32-bit address registers
   — Eight 32-bit data registers
   — 16-Mbyte linear addressing range
   — 56 powerful instruction types
   — Operations on five main data types
   — Memory-mapped I/O
   — 14 addressing modes
• Software Strength
   — Fully upward object-code compatible with other M68000 Family products
   — M68000 architecture allows effective assembly code with a C compiler
• Available Packages
   — 64-pin plastic Quad Flat Pack (QFP)
   — 64-pin Thin Quad Flat Pack (TQFP)
• Speed
   — 10/16/20 MHz
• Upgrade
   — Fully upward code-compatible with higher performance 680x0 and 68300 Family members
   — ColdFireTM code-compatible with minor modifications