Atmel M44C890
M44C890 is suitable for the transmitter side. It contains ROM, RAM, parallel I/O ports, one 8-bit programmable multifunction timer/ counter with modulator 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 M44C890 has an additional EEPROM as a second chip in one package.
| Part No. |
M44C890 |
| Datasheet |
M44C890
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| Manufacturer |
 Atmel |
| Description |
Low Current Microcontroller |
| Buy |
Stock & Price
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FEATURES
/ Benefits D 2-Kbyte ROM, 256 x 4-bit RAM D 12 bidirectional I/Os D Up to 6 external / internal interrupt sources D Multifunction timer/counter with – IR remote control carrier generator – Biphase-, Manchester- and pulse-width modulator D Programmable system-clock with prescaler and five different clock sources V SS VDD D Wide supply voltage range (1.8 to 6.5 V) D Very low sleep current (< 1 µA) D 32 x 16-bit EEPROM (M44C890 only) D Synchronous serial interface (2-wire, I2C, 3-wire) D Watchdog, POR and brown-out function D Voltage monitoring incl. Lo_BAT detect D Flash controller T48C893 available (SSO20) OSC1 OSC2 Brown-out protect. RESET Voltage monitor External input VMI External Crystal 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 BP20/NTE Data direction Port 2 BP21 BP22 BP23 MARC4 4-bit CPU core I/O bus Data direction + interrupt control Port 5 Timer 2 8/12-bit timer with modulator SSI Se...
