Description

The U9280M-H IC is a multi-chip module for remote control and contactless ID systems. It consists of the ATAR092 microcontroller and U3280M transponder interface circuit with EEPROM. A coil connected to the transponder interface serves as a wire less bi-directional communication interface as well as a power supply for the microcontroller and the interface. As a transponder, the device is supplied by a magnetic RF field applied at the coil. For IR- or RF-transmitter applications, it can be supplied by a battery. The microcontroller supports, with its built-in timers, a wide range of IR- and RF-transmission modes such as burst-modulation modes, PWM-, NRZ-, Manchester- and Bi-phase coding.

Features

• 4-bit HARVARD Architecture

• 4k ×8-bit Application ROM

• 256 ×4-bit RAM

• 32 ×16-bit EEPROM

• 10 Bi-directional I/Os

• 4 External Interrupt Inputs (SSO20)

• 8 Interrupt Levels

• 2 ×8-bit Multifunction Timer/Counter

• Interval Timer with Watchdog

• Two-Wire Interface (TWI)

• Voltage Supervisor

• On-chip RC Oscillator

• On-chip Crystal Oscillator

Benefits

• Contactless Power Supply and Communication Interface

• Power Management for Contactless and Battery Power Supply

• Shift-register-supported Modulator and Demodulator Stages

• Low Power Consumption

• Active Mode < 300 µA at 2V and 1 MHz System Clock Frequency(2 µs Instruction Cycle)

• Power-down Mode < 1 µA

• Supply Voltage 2.0V to 6.5V

• High-level Language Programming in qFORTH

• Operating Speed: 1 µs to 10 µs Instruction Cycle (2 µs at VDD = 2V)