Product Summary

The ATAR892W is a 4-bit single-chip micro-controller. The device offers highest integration for IR and RF data communication, remote-control and phase-control applications. The ATAR892W is suitable for the transmitter side as well as the receiver side. The ATAR892W contains ROM, RAM, parallel I/O ports, two 8-bit programmable multifunction timer/counters with modulator and demodulator function, voltage supervisor, interval timer with watchdog function and a sophisticated on-chip clock generation with external clock input, integrated RC-, 32-kHz crystal- and 4-MHz crystal-oscillators. The ATAR892W has an additional EEPROM as a second chip in one package.

Parametrics

ATAR892W absolute maximum ratings: (1)Supply voltage, VDD: -0.3 to + 6.5 V; (2)Input voltage (on any pin), VIN: VSS -0.3 ≤ VIN ≤ VDD +0.3 V; (3)Output short circuit duration, tshort: indefinite; (4)Operating temperature range, Tamb: -40 to +85℃; (5)Storage temperature range, Tstg: -40 to +130℃; (6)Soldering temperature (t≦10 s) Tsid: 260℃.

Features

ATAR892W features: (1)4-Kbyte ROM, 256 × 4-bit RAM; (2)16 Bidirectional I/Os ; (3)Up to 7 External/Internal Interrupt Sources; (4)Multifunction Timer/Counter with IR Remote Control Carrier Generator; Bi-phase-, Manchester- and Pulse-width Modulator and Demodulator; Phase Control Function; (5)Programmable System Clock with Prescaler and Five Different Clock Sources; (6)Wide Supply-voltage Range (1.8 V to 6.5 V); (7)Very Low Sleep Current (< 1 μA); (8)32 × 16-bit EEPROM (ATAR892 only); (9)Synchronous Serial Interface (2-wire, 3-wire); (10)Watchdog, POR and Brown-out Function; (11)Voltage Monitoring Inclusive Lo_BAT Detect; (12)Flash Controller ATAM893 Available (SSO20).

Diagrams

ATAR892W block diagram

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