Japanese NEC 8 -bit low-cost flash memory microcontroller with internal 8M ring oscillator
The SuperFlash technology used in NEC's 78K0/Kx1+ series MCUs allows developers to upgrade programs and can be used as non-volatile data storage. This allows flash memory to replace external EEPROMs and store data when the power is off, reducing the number of components in the entire system.
The 78K0/Kx1+ series MCUs share peripheral instructions for all members of the K1 MCU family, including the widely used 78K0/Kx1+ series. The device features include a FailSafe circuit with a clock monitor and an internal clock independent of the main clock, a watchdog timer and an on-chip oscillator, a device and system power-on reset (POR) function, and a low voltage indicator (LVI) . In addition, some 78K0/Kx1+ series MCUs with 44 or more pins have an on-chip debugger function for software development, which can be used to develop software using a real MCU , making development closer to the actual situation.
The 78K0/Kx1+ series MCU operates at 16MHz , and the CPU processing speed is 60% higher than the 10MHz 78K0 / Kx1 series MCU . The 78K0/Kx1+ series MCU has an on-chip safety function that can detect misoperation caused by electromagnetic interference or static electricity, making the system safer and more reliable. The biggest features of NEC 's MCU are:
1. High cost performance! All products are nearly 30% cheaper than PIC ! The price of some products is even lower than that of Taiwan.
2. Built-in high-precision ring oscillator, the accuracy can reach 0.1% at -40-85 degrees .
3 . The simulation tool is only RMB 1,000 , and it can simulate the entire NEC series (including 8 -bit, 16- bit, and 32- bit microcontrollers), and also has a burning function. Built-in dual Ring-OSC (8MHz, 240KHz) , power-on reset clear circuit, low voltage detection circuit and independent source watchdog circuit FLASH ROM (8K-128K) The product has a built - in UART that supports LIN-BUS 2-4 serial ports (including 2 UARTs, 1 I2C , and high-end products have 1-2 CSI with automatic forwarding function ) 10pin - 80pin, multiple 10BITA/D, low power consumption, wide voltage range, ultra-high anti-interference , support online programming ( ISP ) single voltage programming, support self-programming and BOOT area switching Low-cost development tools, convenient development environment Applied to smart meters, smart home appliances, industrial control, automotive electronics fields UPD78F9202 ( 10P 4K , 8 I/Q , 4- channel A /D ) UPD78F9222 ( 20P 4K , 17 I/Q , 4 -channel A/D ) UPD78F9212 ( 16P 4K , 13 I / Q , 4 - channel A/D ) UPD78F9234 ( 30P 8K , 26 I/Q , 4 - channel A/D ) UPD78F0511 ( 44P 16K , 37 I/Q , 4 -channel A/D )