英文缩略词释义
POVD -- Power On Voltage Detector PWM -- Pulse Width Modulation
SPI -- Serial Peripheral Interface AD -- Analog to Digit Converter
EM78450 Mask Version Only MTP -- Multiple Time Programmable
LVD -- Low Voltage Detector CHL -- channel
PRC -- Precise RC OSC DTMF -- Dual Tone Multiple Frequency
IRC -- Internal RC OSC COMP -- Comparator
SPI -- Serial Peripheral Interface OTP -- One Timer Programmable
WDT -- Watch Dog Timer SG -- Sound Generator
SI -- Serial Interface AS -- Analog Switch
VR -- Voltage Regulator OP AMP -- OP Amplifier
RFO -- Resistance to Frequency OSC DTS -- Date Time Stamp
IR -- Infrared HSC -- High Speed Counter

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