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7546 Datasheet(PDF) 1 Page - Renesas Technology Corp |
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7546 Datasheet(HTML) 1 Page - Renesas Technology Corp |
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1 / 95 page  DESCRIPTION The 7546 Group is the QzROM version of 7542 Group. The 7546 Group has the pin-compatibilty with the 7542 Group. As new functions, the power-on reset, the low voltage detection cir- cuit, and the function set ROM are added. FEATURES • Basic machine-language instructions ...................................... 71 • The minimum instruction execution time ............................. 0.25 µs (at 8 MHz oscillation frequency, double-speed mode for the shortest instruction) • Memory size ROM ................................ 8K, 16K bytes RAM ............................... 384, 512 bytes • Programmable I/O ports ........................................................... 25 • Interrupts ................................................. 18 sources, 16 vectors • Timers ............................................................................. 8-bit ✕ 2 ...................................................................................... 16-bit ✕ 2 • Output compare ............................................................ 4-channel • Input capture ................................................................ 2-channel • Serial interface ............ 8-bit ✕ 2 (UART or Clock-synchronized) • A/D converter ............................................... 10-bit ✕ 6 channels • Clock generating circuit ............................................. Built-in type (low-power dissipation by an on-chip oscillator) (connected to external ceramic resonator or quartz-crystal oscillator permitting RC oscillation) • 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 oscillation, in double-speed mode At 8 MHz .................................................................... 4.5 to 5.5 V At 6.5 MHz ................................................................. 4.0 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 oscillation, in high-speed mode or middle-speed mode At 8 MHz .................................................................... 4.0 to 5.5 V At 4 MHz .................................................................... 2.4 to 5.5 V At 2 MHz .................................................................... 2.2 to 5.5 V XIN oscillation frequency at RC oscillation in high-speed mode or middle-speed mode At 4 MHz .................................................................... 4.0 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 on-chip oscillation ......... 1.8 to 5.5 V • Power dissipation ................................................ 29.5 mW (Typ.) • Operating temperature range ................................... –20 to 85 °C Rev.1.21 Nov 15, 2006 page 1 of 93 REJ03B0160-0121 7546 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER REJ03B0160-0121 Rev.1.21 Nov 15, 2006 |
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