ST8108
8K ROM HCMOS MICROCONTROLLER
SGS-Thomson Microelectronics, March 1990
The ST8108 is a complete HCMOS microcontroller unit (MCU). The device includes an on-chip oscillator, CPU, ROM, RAM, I/O, two serial interface systems (SCI, SPI) and one TIMER. The fully static design allows frequency operation down to DC, reducing power consumption when needed.
Hardware:
- HCMOS Technology.
- 8 Bit Core & Architecture.
- Power Saving Wait, Halt and RAM retention modes.
- 7744 Bytes of user ROM.
- 176 Bytes of RAM.
- 24 Bi-Directional I/O lines.
- 16 Bit free running counter timer featuring, one input capture system and one output compare system.
- Serial Peripherical Interface (Synchronous).
- Serial Communication Interface (Asynchronous).
- External, Timer, SCI and SPI interrupts.
- Master reset and Power on reset.
- Single 3 to 6 Volts supply.
- 2 Volts RAM retention mode.
- User Mask options:
- RC or XTAL/Ceramic oscillator option.
- Interrupt trigger: edge or level & edge.
- Internal clock for TIMER, SCI and SPI.
- 40 pin DIP package.
- 44 Lead PLCC.
Software:
- 8 Bit data manipulation.
- 74 basic instructions.
- 8 by 8 unsigned multiply instructions.
- 7 main addresssing modes (Immediate, Direct, Extended, Relative, Indexed, Indirect and Bit).
- Development support on real time emulator, EPROM version and PC/DOS sofware (Cross Assembler, Debugger).
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