HT68FB240数据手册Holtek中文资料规格书

描述 Description

The HT68FB240 is Flash Memory I/O with USB type 8-bit high performance RISC architecture microcontrollers, designed for applications that interface directly to analog signals and which require an USB interface. Offering users the convenience of Flash Memory multi-programming features, these devices also include a wide range of functions and features. Other memory includes an area of RAM Data Memory.

Multiple and extremely flexible Timer Modules provide timing, pulse generation and PWM generation functions. Communication with the outside world is catered for by including fully integrated SPI, I2C and USB interface functions, three popular interfaces which provide designers with a means of easy communication with external peripheral hardware. Protective features such as an internal Watchdog Timer, Low Voltage Reset and Low Voltage Detector coupled with excellent noise immunity and ESD protection ensure that reliable operation is maintained in hostile electrical environments. The external interrupt can be triggered with falling edges or both falling and rising edges.

A full choice of two oscillator functions are provided including two fully integrated system oscillators which requires no external components for their implementation. The ability to operate and switch dynamically between a range of operating modes using different clock sources gives users the ability to optimise microcontroller operation and minimise power consumption.

The inclusion of flexible I/O programming features along with many other features ensure that the devices will find specific excellent use in a wide range of application possibilities such as sensor signal processing, motor driving, industrial control, consumer products, subsystem controllers, etc.

This device is fully supported by the Holtek range of fully functional development and programming tools, providing a means for fast and efficient product development cycles.

 

特性 Features

CPU Features
• Operating voltage:
- VDD (MCU)
    fSYS= 6MHz: 2.2V~5.5V
    fSYS= 12MHz: 3.3V~5.5V
- VDD (USB mode)
    fSYS= 6MHz/12MHz: 3.3V~5.5V
    fSYS= 16MHz: 4.5V~5.5V
• Up to 0.25us instruction cycle with 16MHz system clock at VDD=5V
• HALT function and wake-up feature reduce power consumption
• Oscillators:
- Internal 12MHz RC -- HIRC
- Internal 32kHz RC -- LIRC
• Multi-mode operation: NORMAL, SLOW, IDLE and SLEEP
• All instructions executed in one or two instruction cycles
• Table read instructions
• 63 powerful instructions
• 8-level subroutine nesting
• Bit manipulation instruction

Peripheral Features
• Flash Program Memory: 4Kx16
• RAM Data Memory: 160x8
• USB 2.0 Low Speed compatible
• Up to 3 endpoints supported including endpoint 0
• All endpoints except endpoint 0 support interrupt transfer
• Endpoint 0 supports control transfer for Setup, In and Out token respectively
• Endpoint 0 has 8 bytes FIFO size, supports DMA interface for configure USB descriptor
• Support 3.3V LDO and integrate an internal 1.5K ohm pull-up resistor on UDN line
• Internal 12MHz RC OSC with 1.5% accuracy for all USB modes
• Watchdog Timer function
• Up to 34 bidirectional I/O lines
• Two pin-shared external interrupts
• Two Compact Timer Modules for time measure, compare match output, PWM output functions
• Serial Interface Modules with SPI and I2C interfaces
• Low voltage reset function
• Low voltage detect function
• In-system programmable in 32 words sector
• Support 3 channels 8-bit PWM
• Support ISP/IAP function
• Package types: 46-pin QFN, 48-pin LQFP
• OCDS debug Interface for HT68VB240 only