SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER - Renesas Technology
Description
Notice: This is not a final specification.
Some parametric limits are subject to change.
PRELIMINARY
7549 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
DESCRIPTION The 7549 Group is the 8-bit microcomputer based on the 740 family core technology.
The 7549 Group has an 8-bit timer, 16-bit timer, serial interface, A/D converter, power-on reset circuit and the low voltage detection circuit.
Also, the Function set ROM is equipped.
FEATURES • Basic machine-language instructions .
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71 www.
DataSheet4U.
com • The minimum instruction execution time .
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0.
25 µs (at 8 MHz oscillation frequency, double-speed mode) • Memory size ROM 2 K, 4K, 6 K bytes RAM .
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192/256 bytes • Programmable I/O ports I/O port19 Output port.
1 • Key-on wakeup .
8 • LED direct drive port.
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8 • Interrupts 13 sources, 13 vectors • Timers .
8-bit × 2 .
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16-bit × 1 • Output compare .
3 channel • Input capture .
1 channel
REJ03B0202-0200 Rev.
2.
00 Mar 05, 2007 • Serial interface 8-bit × 1 (UART or clock synchronous) • A/D converter .
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10-bit resolution × 8-channel • Clock generating circuit .
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Built-in type (connect to external ceramic resonator or quartz-crystal oscillator, 32 kHz quartz-crystal oscillation available) • High-...
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