HMCS45C
The HMCS45C is the CMOS 4-bit single chip microcomputer which contains ROM, RAM, I/O and Timer/Event Counter on single chip. The HMCS45C is designed to perform efficient con¬troller function as well as arithmetic function for both binary and BCD data. The CMOS technology of the HMCS45C provides the flexibility of microcomputers for battery powered and battery back-up applications.
FEATURES
- 4-bit Architecture
- 2,048 Words of Program ROM (10 bits/Word) 128 Words of Pattern ROM (10 bits/Word)
- 160 Digits of Data RAM (4 bits/Digit)
- 44 I/O Lines and 2 External Interrupt Lines
- Timer/Event Counter
- Instruction Cycle Time: HMCS45C: 10μS HMCS45CL: 20 μs
- All Instructions except One lnstruction; Single Word and Single Cycle
- BCD Arithmetic Instructions
- Pattern Generation Instruction — Table Look Up Capability —
- Powerful Interrupt Function
- 3 Interrupt Sources
- 2 Extemal Interrupt Lines
- Timer/Event Counter Multiple Interrupt Capability
- 3 Interrupt Sources
- Bit Manipulation Instructions for Both RAM and I/O
- Option of I/O Configuration Selectable on Each Pin; Pull Up MOS or CMOS or Open Drain
- Built-in Oscillator
- Built-in Power-on Reset Circuit (HMCS45C only)
- Low Operating Power Dissipation; 2mW typ.
- Stand-by Mode (Halt Mode); 50 μW max.
- CMOS Technology
- Single Power Supply: HMCS45C: 5V±10% / HMCS45CL: 2.5V to 5.5V