Features • • • • • • • • • • • • 2-Kbyte ROM, 256 × 4-bit RAM 12 Bi-directional I/Os Up to 6 External/Internal Interrupt Sources Multifunction Timer/Counter with – IR Remote Control Carrier Generator – Bi-phase-, Manchester- and Pulse-width Modulator and Demodulator Programmable System Clock with Prescaler and Five Different Clock Sources Wide Supply-voltage Range (1.
8 V to 6.
5 V) Very Low Sleep Current ( 1 µA) 32 × 16-bit EEPROM (ATAR890 only) Synchronous Serial Interface (2-wire, 3-wire) Watchdog, POR and Brown-out Function Voltage Monitoring Inclusive Lo_BAT Detection Flash Controller ATAM893 Available (SSO20) Description The ATAR090 and ATAR890 are members of Atmel’s family of 4-bit si...

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