HT46R01

` Operating voltage:
f<sub>SYS</sub>= 4MHz: 2.2V~5.5V
f<sub>SYS</sub>= 8MHz: 3.3V~5.5V
f<sub>SYS</sub>= 12MHz: 4.5V~5.5V
` 7 bidirectional I/O lines and 1 input line
` External interrupt input shared with an I/O line
` One or two 8-bit programmable Timer/Event Counters with overflow interrupt and 7-stage prescaler
` External crystal system oscillator
` Fully integrated internal RC oscillator available with three frequencies: 4MHz, 8MHz or 12MHz
` Watchdog Timer function
` PFD for audio frequency generation
` Power down and wake-up functions to reduce power consumption
` Up to 0.33s instruction cycle with 12MHz system clock at V_DD= 5V
` 4, 6 or 8-level subroutine nesting
` 4-channel 8, 9 or 12-bit resolution A/D converter
` 8-bit PWM output shared with I/O line
` Bit manipulation instruction
` Table read instructions
` 63 powerful instructions
` All instructions executed in one or two machine cycles
` Low voltage reset function
` 10-pin ultra-small MSOP package

Supply Voltage ...........................V_SS-0.3V to V_SS+6.0V
Input Voltage..............................V_SS-0.3V to V_DD+0.3V
I_OL Total ............................................................150mA
Total Power Dissipation ...................................500mW
Storage Temperature ............................-50 to 125
Operating Temperature............................-40 to 85
I_OH Total..........................................................-100mA
Note: These are stress ratings only. Stresses exceeding the range specified under "Absolute Maximum Ratings" may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability

The HT46R01/HT46R02/HT46R03 are 8-bit high performance, RISC architecture microcontroller devices specifically designed for a wide range of applications. In addition to providing the usual microcontroller I/O control functions, the fully integrated A/D converter allows the interfacing and processing of external analog signals such as those from sensors. The PWM function also allows the driving of external analog signals for applications such as motor driving while the PFD function provides a means of generating a fixed frequency reference.

The usual Holtek microcontroller HT46R01 features of low power consumption, I/O flexibility, timer functions, oscillator options, power down and wake-up functions, watchdog timer and low voltage reset, combine to provide devices with a huge range of functional options while still maintaining cost effectiveness. Their fully integrated system oscillator, with three frequency selections, and being supplied in an extremely small outline MSOP 10-pin package opens up a huge range of new application possibilities for these devices, some of which include may include industrial control, consumer products, household appliances subsystem controllers,etc.