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7549 Datasheet(PDF) 1 Page - Renesas Technology Corp |
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7549 Datasheet(HTML) 1 Page - Renesas Technology Corp |
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1 / 84 page  Rev.2.01 Oct 15, 2007 Page 1 of 81 REJ03B0202-0201 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 ..................................71 • The minimum instruction execution time ................... 0.25 µs (at 8 MHz oscillation frequency, double-speed mode) • Memory size ROM ..................................... 2K, 4K, 6K bytes RAM ........................................... 192/256 bytes • Programmable I/O ports I/O port............................................................19 Output port........................................................1 • Key-on wakeup .......................................................................8 • LED direct drive port..............................................................8 • Interrupts ............................................. 12 sources, 12 vectors • Timers ....................................................................... 8-bit × 2 ..................................................................................16-bit × 1 • Output compare ........................................................ 3 channel • Input capture ............................................................. 1 channel • Serial interface............................................................ 8-bit × 1 (UART or clock synchronous) • A/D converter ............................ 10-bit resolution × 8-channel • Clock generating circuit ..................................... Built-in type (connect to external ceramic resonator or quartz-crystal oscillator, 32 kHz quartz-crystal oscillation available) • High-speed on-chip oscillator ............................ Typ. : 4 MHz • Low-speed on-chip oscillator .......................... Typ. : 250 kHz • Watchdog timer ...................................................... 16-bit × 1 • Power-on reset circuit.......................................... Built-in type • Low voltage detection circuit .............................. Built-in type • Power source voltage XIN oscillation frequency (at ceramic resonator, in double-speed mode) At 8 MHz ........................................ 4.5 to 5.5 V At 2 MHz ........................................ 2.4 to 5.5 V At 1 MHz ........................................ 2.2 to 5.5 V XIN oscillation frequency (at ceramic resonator, in high-speed mode) At 8 MHz ........................................ 4.0 to 5.5 V At 4 MHz ........................................ 2.4 to 5.5 V At 1 MHz ........................................ 1.8 to 5.5 V High-speed on-chip oscillator oscillation frequency At 4 MHz......................................... 4.0 to 5.5 V Low-speed on-chip oscillator oscillation frequency At 250 kHz (typ. value at VCC = 5V).... 1.8 to 5.5 V • Power dissipation ........................................................ 30 mW • Operating temperature range ............................... -20 to 85 °C APPLICATION Office automation equipment, factory automation equipment, home electric appliances, consumer electronics, etc. 7549 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER REJ03B0202-0201 Rev.2.01 Oct 15, 2007 |
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