HT68F20/HT68F30/HT68F40/HT68F50/HT68F60/HT68FU30/HT68FU40/HT68FU50/HT68FU60 - Enhanced I / O Flash Type MCU 8-Bit MCU with EEPROM 

 Outline 

 HT68FXX Series MCU is an I / O type 8-bit high performance RISC Flash microcontroller. The series of microcontrollers with a range of functions and features, its Flash memory can be multiple programming features to provide users with great convenience. Memory aspects, but also includes a RAM data memory and one can be used to store the serial number, calibration data and other non-volatile data EEPROM memory. 

 This single-chip with multiple flexible timer module, which provides the timing function, the pulse generator and PWM functions. In simulation features, also includes two comparator functions. Built-in SPI and I2C functions, providing designers with an easy and external hardware communication interface. The internal watchdog timer, low voltage reset and low voltage detection internal protection features, plus excellent immunity and ESD protection performance, to ensure that the MCU and reliable operation in harsh electromagnetic interference environment. 

 The MCU provides a rich of HXT, LXT, the ERC, the HIRC oscillation and LIRC oscillator options, and built a complete system oscillator, requiring no external components. Its ability to dynamically switch between different operating modes, to provide users with an optimized single-chip operation and means to reduce power consumption. 

 HT68FUx0 series microcontroller contains a UART module, it can support data communications network, such as between the microcontroller and data connection between the low-cost PC and external devices, communication between the portable and battery-powered equipment. 

 External time base function, I / O using a flexible, etc. Other features make this microcontroller can be used in a variety of products, such as electronic measuring instruments, environmental monitoring, handheld measurement tools, home appliances, electronic control instruments, motor control aspects. 

 Feature 

 CPU features 

 Operating voltage: 
 fSYS = 8MHz: 2.2V ~ 5.5V 
 fSYS = 12MHz: 2.7V ~ 5.5V 
 fSYS = 20MHz: 4.5V ~ 5.5V 
 VDD = 5V, the system clock is 20MHz instruction cycle is 0.2μs 
 Suspend and wake-up function to reduce power consumption 
 Five oscillation modes: 
 External crystal - HXT 
 External 32.768kHz crystal - LXT, 
 External RC - the ERC 
 Internal RC - the HIRC oscillation 
 Internal 32kHz RC - LIRC only 
 Variety of operating modes: normal, low, Idle and Sleep 
 Internal integration of 4MHz, 8MHz and 12MHz oscillator, requiring no external components 
 All commands can be completed within one or two instruction cycles 
 Table read instruction 
 63 instructions 
 Up to 12 layer stack 
 Bit manipulation instructions 
 Surrounding features 

 Flash program memory: 1Kx14 ~ 12Kx16 
 RAM data storage: 64x8 to 576x8 
 EEPROM memory: 32x8 ~ 256x8 
 Watchdog Timer function 
 Up to 50 bidirectional I / O port 
 4 software control SCOM port 1/2 bias LCD driver 
 Number of pins and external interrupt pin share 
 More than one timer module for time measurement to capture the input, compare match output, PWM output and single-pulse output 
 Serial Interface Module - SIM, SPI or I2C communication 
 Comparator function 
 Dual time base can provide a fixed time of the interrupt signal 
 Low voltage reset function 
 Low-voltage detection function 
 Optional peripherals - UART module can be used for full-duplex asynchronous communication 
 A variety of package types