HT66F20
Features
CPU Features
- Operating Voltage:
Peripheral Features
- Flash Program Memory: 1K´14 ~ 12K´16
- RAM Data Memory: 64´8 ~ 576´8
- EEPROM Memory: 32´8~256´8
- Watchdog Timer function
- Up to 50 bidirectional I/O lines
- Software controlled 4-S lines LCD driver with
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- - f SYS= 8MHz: 2.2V~5.5V f SYS= 12MHz: 2.7V~5.5V f SYS= 20MHz: 4.5V~5.5V Up to 0.2ms instruction cycle with 20MHz system clock at VDD=5V Power down and wake-up functions to reduce power consumption Five oscillators: External Crystal -- HXT External 32.768k Hz Crystal -- LXT External RC -- ERC Internal RC -- HIRC Internal 32k Hz RC -- LIRC Multi-mode operation: NORMAL, SLOW, IDLE and SLEEP Fully integrated internal 4MHz, 8MHz and 12MHz oscillator requires no external ponents All instructions executed in one or two instruction cycles Table read instructions 63 powerful instructions Up to 12-level subroutine nesting Bit manipulation instruction
1/2 bias
- Multiple pin-shared external interrupts
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