Holtek Semiconductor HT48R50A
This device is an 8-bit high performance RISC-like microcontroller designed for multiple I/O product applications. It is particularly suitable for use in products such as remote controllers, fan/light controllers, washing machine controllers, scales, toys and various subsystem controllers.FEATURES
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● Operating voltage: fSYS=4MHz: 3.3V~5.5V fSYS=8MHz: 4.5V~5.5V Low voltage reset function 35 bidirectional I/O lines (max.) 1 interrupt input shared with an I/O line 8-bit programmable timer/event counter with overflow interrupt and 8-stage prescaler 16-bit programmable timer/event counter and overflow interrupts On-chip RC oscillator, external crystal and RC oscillator 32768Hz crystal oscillator for timing purposes only Watchdog Timer
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● 4096´15 program memory ROM 160´8 data memory RAM Buzzer driving pair and PFD supported HALT function and wake-up feature reduce power consumption 6-level subroutine nesting Up to 0.5ms instruction cycle with 8MHz system clock at VDD=5V Bit manipulation instruction 15-bit table read instruction 63 powerful instructions All instructions in one or two machine cycles 28-pin SKDIP/SOP, 48-pin SSOP package
GENERAL DESCRIPTION
A HALT feature is included to reduce power consumption. Rev. 1.10 1 July 2, 2001 HT48R50A...