HT45F23A View Datasheet(PDF) - Holtek Semiconductor

Part Name

Description

Manufacturer

HT45F23A

8-Bit Flash MCU with Op Amps & Comparators

Holtek Semiconductor 

HT45F23A

8-Bit Flash MCU with Op Amps & Comparators

General Description

The HT45F23A is a Flash Memory Tinypower A/D type 8-bit high performance RISC architecture

microcontrollers, designed especially for applications that interface directly to analog signals.

The HT45F23A device has a higher gain bandwidth making it more suitable for higher frequency

applications.

Offering users the convenience of Flash Memory multi-programming features, the device also

includes a wide range of functions and features. Other memory includes an area of RAM Data

Memory as well as an area of EEPROM memory for storage of non-volatile data such as serial

numbers, calibration data etc.

Analog features include an integrated multi-channel Analog to Digital Converter, dual Pulse

Width Modulation outputs, dual Operational Amplifiers , dual Comparators , one internal 2.4V or

3.3V LDO (Low Drop Out) for voltage regulator and a 12-bit DAC for voice output application,

communication with the outside world is catered for by including fully integrated SPI or I2C

interface functions, two 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.

A full choice of HXT, LXT, ERC, HIRC and LIRC oscillator functions are provided including a

fully integrated system oscillator which requires no external components for its implementation.

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.

The inclusion of flexible I/O programming features, Time-Base functions along with many other

features ensure that the device will find excellent use in applications such as electronic metering,

environmental monitoring, handheld instruments, household appliances, electronically controlled

tools, motor driving, home security systems related to Smoke detector and many others.

Rev. 1.00

9

July 03, 2012

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