HT46R54A General Description
HT46R54A Features
·Low-power fully static CMOS design
·Operating voltage: fSYS=4MHz: 2.2V~5.5V fSYS=8MHz: 3.3V~5.5V
·Program Memory: 2KX15 OTP (HT46R53A) 4KX15 OTP (HT46R54A)
·Data memory: 192X8 RAM (HT46R53A) 280X8 RAM (HT46R54A)
·A/D converter: 12bitsX8Ch External A/D converter reference voltage input pin
·22 bidirectional I/O lines
·1 interrupt input shared with an I/O line
·8-bit programmable timer/event counter with overflow interrupt and 7-stage prescaler
·On-chip crystal and RC oscillator
·6-level subroutine nesting
·Watchdog Timer
·Low voltage reset function
·HALT function
·Up to 0.5s instruction cycle with 8MHz system clock at VDD=5V
·1-channel 8-bit PWM output shared with an I/O line
·PFD function
·Bit manipulation instruction
·Table read instruction
·63 powerful instructions
·All instructions in one or two machine cycles
·28-pin SKDIP/SOP package
HT46R54A Connection Diagram
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