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HT48R54A Datasheet(PDF) 21 Page - Holtek Semiconductor Inc

Part # HT48R54A
Description  I/O Type 8-Bit OTP MCU with 16x16 High Current LED Driver
PDF  40 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT48R54A Datasheet(HTML) 21 Page - Holtek Semiconductor Inc

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HT48R54A
Rev. 1.00
21
July 27, 2007
Options
The following table shows all kinds of options in the microcontroller. All of the options must be defined to ensure having
a proper functioning system.
Items
Options
1
OSC type selection: RC or crystal
2
PA0~PA7 bit wake-up enable or disable (by bit)
3
PA pull-high enable or disable (by port)
4
WDT clock source: WDT oscillator or fSYS/4 or 32768Hz oscillator
5
WDT enable or disable
6
CLRWDT instructions: 1 or 2 instructions
7
Timer/event counter 0 clock sources: fSYS/4 or fSP
8
LVR enable or disable
9
LVR voltage: 2.1V or 3.15V or 4.2V
10
Buzzer function: single BZ enable or both BZ and BZ or both disable
11
Buzzer frequency: fS/2, fS/4, fS/8, fS/16
12
PA7: Normal I/O or PFD output



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