Features
• Single 5V ± 5% power supply
• N channel, silicon gate, depletion load technology
• 56 instructions
• Decimal and binary arithmetic
• Thirteen addressing modes
• True indexing capability
• Programmable stack pointer
• Variable length stack
• Interrupt capability
• Non-maskable interrupt
• Bi-directional data bus
• Addressable memory range of up to 64K bytes
• "Ready" input
• Direct memory access capabilitv
• Bus compatible with MC6800
• Choice of external or on-board clocks
• 1 MHz, 2MHz, 3MHz and 4MHl versions
• On-chip clock options
-External single clock input
-Crystal time base input
• Pipeline architecture

General Description
The UM6502/UM6507/UM6512 microprocessors are totally
software compatible with one another. These products
provide a selection of addressable memory range, interrupt
input options and on-chip clock oscillators and drivers.
The UM6502/UM6507 on-chip clock versions are aimed
at high performance, low cost applications where single
phase inputs or crystals provide the time base. The
UM6512 external clock version is geared for the multiprocessor
system applications where maximum timing
control is mandatory. These products are bus compatible
with the MC6800 product offering.