Holtek Semiconductor HT48E70
The HT48E70 is an 8-bit high performance, RISC architecture microcontroller device specifically designed for multiple I/O control product applications. The advantages of low power consumption, I/O flexibility, timer functions, oscillator options, HALT and wake-up functions, watchdog timer, buzzer driver, as well as low cost, enhance the versatility of these devices to suit a wide range of application possibilities such as industrial control, consumer products, subsystem controllers, etc.FEATURES
● Operating voltage:● HALT function and wake-up feature reduce power fSYS=4MHz: 2.2V~5.5V fSYS=8MHz: 3.3V~5.5V
● Low voltage reset function
● 56 bidirectional I/O lines (max.)
● 1 interrupt input shared with an I/O line
● 2´16-bit programmable timer/event counter with over- consumption
● 16-level subroutine nesting
● Up to 0.5ms instruction cycle with 8MHz system clock at VDD=5V
● Bit manipulation instruction
● 16-bit table read instruction
● 63 powerful instructions
● 106 erase/write cycles EEPROM data memory
● EEPROM data retention > 10 years
● All instructions in one or two machine cycles
● In system programming (ISP)
● 48-pin SSOP, 64-pin QFP package flow interrupt
● On-chip crystal and RC oscillator
● Watchdog Timer
● 1,000 erase/write cycles MTP program memory
● 8192´16 program memory ROM (MTP)
● 256´8 data memory EEPROM
● 224´8 data memory RAM
GENERAL DESCRIPTION
Rev. 1.00 1 September 16, 2005 HT48E70 Block Diagram T M R 1 C M U X T M R 1 L T M R 1 H In te rru p t C ir...