Description
The 7540 Group is the 8-bit microcomputer based on the 740 family core technology.
The 7540 Group has a serial I/O, 8-bit timers, a 16-bit timer, and an A/D converter, and is useful for control of home electric appliances and office automation equipment.
Features
- Basic machine-language instructions 71.
- The minimum instruction execution time 0.34 µs
(at 6 MHz oscillation frequency, double-speed mode for the shortest instruction).
- Memory size ROM 8 K to 32 K bytes
RAM 384 to 768 bytes.
- Programmable I/O ports 29 (25 in 32-pin version).
- Interrupts 15 sources, 15 vectors
(14 sources, 14 vectors for 32-pin version).
- Timers 8-bit ✕ 4
16-bit ✕ 1.
- Serial I/O1 8-bit ✕ 1 (UART or Clock-synchr.