HT45R4U数据手册Holtek中文资料规格书

描述 Description

The TinyPowerTM A/D Type with LCD 8-bit high performance RISC architecture microcontroller is specifically, designed for applications that interface directly to analog signals and which require an LCD interface. The device includes an integrated multi-channel Analog to Digital Converter and an LCD driver.

The benefits of integrated A/D and LCD functions, in addition to low power consumption, high performance, I/O flexibility and low-cost, provides the device with the versatility for a wide range of products in the home appliance and industrial application areas. Some of these products could include electronic metering, environmental monitoring, handheld instruments, electronically controlled tools, motor driving in addition to many others.

The unique Holtek TinyPower technology also gives the device extremely low current consumption characteristics, an extremely important consideration in the present trend for low power battery powered applications. The usual Holtek MCU features such as power down and wake-up functions, oscillator options, programmable frequency divider, etc. combine to ensure user applications require a minimum of external components.

 

特性 Features

• Operating voltage:
fSYS=32768Hz: 2.2V~3.6V
fSYS=4MHz: 2.2V~3.6V
• OTP Program Memory: 16Kx16
• RAM Data Memory: 1152x8
• Up to 34 bidirectional I/O lines
• TinyPower technology for low power operation
• Two external pin-shared interrupts lines
• Multiple programmable Timer/Event Counters
• with overflow interrupt and 7-stage prescaler
• External Crystal, Internal RC and 32.768kHz oscillators
• Externally supplied system clock option
• Watchdog Timer function
• PFD/Buzzer for audio frequency generation
• LCD driver function
• 4 operating modes: normal, slow, idle and sleep
• 8-channel 12-bit resolution A/D converter
• Low voltage detect function
• Bit manipulation instruction
• Table read instructions
• 63 powerful instructions
• Up to 1us instruction cycle with 4MHz system clock at VDD=3V
• 8 levels subroutine nesting
• All instructions executed in one or two machine cycles
• Power down and wake-up functions to reduce power consumption
• Package Type: 64-pin LQFP