The metering-specific chip
is a high-performance bit chip. The chip uses an enhanced core and integrates large-capacity memory (of, and bytes) inside. The operating frequency can reach up to the high precision of the internal integrated display driver and built-in crystal oscillator automatic temperature compensation. It has a wealth of peripherals and ports, including a universal bit timer, a channel bit, a power supply voltage comparator, a hardware watchdog, and an interface. interfaces, hardware interfaces, and up to universal interfaces.
The internally integrated high-precision real-time clock and temperature sensor can realize automatic temperature compensation, meet the requirements of clock accuracy in the full temperature range, and meet the requirements of the clock in the multi-rate table.
The internally integrated communication interface not only complies with the general communication interface standards, but also meets the special purposes of electric energy meter applications. Each interface has a hardware parity check function and supports infrared modulation, enabling infrared communication. It also has the function of automatic polarity recognition, and can use polarized chips to achieve non-polar communication functions. The interface communication rate can be set to adapt to the low rate of optocoupler communication. The interface can realize reading and writing of pairs. The interface meets the standards of smart card interfaces and can realize reading and writing operations of smart cards.
Equipped with a voltage comparator, it can measure battery voltage and implement power-down detection. At the same time, it has a hardware watchdog and power-on reset circuit. One of the watchdogs is automatically turned on when power is turned on and cannot be turned off by software to ensure reliable operation and reset of the chip.
The power supply voltage range is, mode and mode are two different low-power modes to meet low-power applications, for packaging.
It is a built-in crystal oscillator chip and an external crystal oscillator chip.
Features
Using an enhanced core, the oscillation cycle/instruction cycle is more efficient than the traditional oscillation cycle/instruction cycle core.
,, internal, external
Using high-frequency circuits and low-frequency clock oscillators, clocks can be used
Shanghai Tanghui Electronics is an excellent partner of Shanghai Belling, and the original factory has great support. We have a complete range of models and are in stock all year round, and we can provide free samples. Contact number: Mr. Yang
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Shanghai Belling Electric Energy Meter MCU IC Chip