EU1020

The EU1020 is an OTP type 8-bit micro-controller with 4 channels of 10-bit A/D converter using advanced CMOS process. The EU1020 is specially designed for various industrial field applications. The EU1020 incorporates two sets of 8-bit timer/counters, where timer0/1 is specially designed for PWM (Pulse Width Modulation) generator. There are 14 I/O ports with EU1020, respectively. Considering form factor and manufacturability, the EU1020 is packaged into 16-pin non-JEDEC-standard compact-size SOP.

Features of the EU1020 are:(1)2.2V to 5.5V input voltage range; (2)14 I/O ports in EU1020; (3)RAM size: 128 x 8 bits; (4)the STACK RAM is included; (5)program ROM size: 4K x 8 bits OTP; (6)10 bits A/D Converter input source.EU1020: 4 channels; (7)one set of 16-bit down count timer and one set of 8-bit timer; (8)operating temperature: -40 to +125; (9)build-in low voltage reset (LVR) circuit; (10)oscillator: internal RC oscillation.The stack pointer is an 8-bit register that is used to control the addressing of the variable-length stack.The stack pointer is automatically incremented and decremented under control of the microprocessor the perform stack manipulations under direction of either the program or interrupts. The stack allows a simple implementation of nested subroutines and multiple level interrupts. The stack pointer is initialized by the user's software.

The absolute maximum ratings of the EU1020 can be summarized as:(1)storage temperature:-65 to 125;(2)operating temperature: -40 to +125.The EU1020 is built in Low-Voltage-Reset circuit to detect and against power noise. The low voltage reset will be active when Vdd is dropped lower than 2.4V. Note that, in STOP mode, low voltage reset function will be disabled by hardware. The low voltage reset function will be active when CPU is not working in STOP mode.In HALT mode, CPU core will suspend and just hold at that program counter. All the internal circuit will suspend, except system clock and timer/counter kept running. HALT mode could be released from timer underflow or PB ports input signal from high to low.