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SCG9864
8-BIT MICROCONTROLLER
Score Concept Semiconductor Ltd.
1
Sept 2000
SCG9864 Microcontroller Specification
FEATURE SUMMARY
Technology
− CMOS technology.
CPU
− 8-bit CPU core.
− 126 powerful and easy-to-use
instruction set.
Memory
− Internal ROM: 64K x 8
− Internal RAM: 128 x 8
− Memory is organized as 16K-byte
page.
I/O structure
− Memory mapped I/O structure.
Oscillation Frequency
− RC Oscillator for the main system
clock up to 4MHz, instruction cycle
~0.5us.
− Subsystem clock frequency of
32.768kHz for real time timer.
Power Down
− Stop mode (Stop oscillation)
Interrupts
− 2 timer interrupts.
− 1 real time interrupt.
− 1 external event interrupt.
− 1 software interrupt.
I/O ports
− 2 8-bit programmable I/O ports.
− 1 7-bit output port.
Timer
− 2 8-bit pre-scalar auto reload timers
which can be cascaded to form one
16-bit timer.
− 1 real time timer.
− 1 watch dog timer.
Operating Voltage
− 2.4V to 5.5V.
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