SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
7540 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
REJ03B0011-0400 Rev.4.00
Jun 21, 2004
DESCRIPTION
The 7540 Group is th...
Description
7540 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
REJ03B0011-0400 Rev.4.00
Jun 21, 2004
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-synchronized) Serial I/O2 (Note 1) ..................... 8-bit ✕ 1 (Clock-synchronized) A/D converter ............................................... 10-bit ✕ 8 channels
.................................................... (6 channels for 32-pin version) ...
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