ATAR090-D Datasheet | Atmel

Features - - - - - - - - - - - - Extended Temperature Range for Very High Temperature up to 125°C 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) 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-D is a member of Atmel’s family of 4-bit single-chip microcontrollers. It offers the highest integration for IR and RF data munication and remote-control. The ATAR090-D is suitable for the transmitter side. They contain 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-k Hz crystal- and 4-MHz crystal-oscillators. Figure 1. Block Diagram VSS VDD OSC1 OSC2 .. Low-current Microcontroller for Wireless munication ATAR090-D Brown-out protect RESET Voltage monitor External input VMI Crystal External RC oscillators oscillators clock input Clock management UTCM Timer 1 interval- and watchdog timer ROM 2 K x 8 bit RAM 256 x 4 bit Timer 2 8/12-bit timer with modulator SSI Serial interface T2I T2O SD SC Data direction BP20/NTE Port 2 BP21 BP22 BP23 MARC4 4-bit CPU core I/O bus Data direction + alternate function Port 4 Data direction + interrupt control Port 5 BP42 BP40 INT3 T2O SC BP41 BP43 VMI INT3 T2I SD BP50 INT6 BP51 INT6 BP52 INT1 BP53 INT1 Rev. 4701C- 4BMCU- 12/04 Pin Configuration Figure 2. Pinning SSO20 VDD BP40/INT3/SC BP53/INT1 BP52/INT1 BP51/INT6 BP50/INT6 OSC1 OSC2 NC NC...