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48R01A3 데이터 시트보기 (PDF) - Holtek Semiconductor
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48R01A3
Small Package I/O Type 8-Bit OTP MCU
Holtek Semiconductor
48R01A3 Datasheet PDF : 49 Pages
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HT48R01A
Device Markings
A suffix with the number 1, 2 or 3 will be added to each of the part numbers and printed on the package. The suffix num-
ber denotes the fixed oscillation frequency of the internal RC oscillator as shown.
Part No.
HT48R01A
Device Marking
48R01A1
48R01A2
48R01A3
Internal RC Oscillator Frequency
4MHz
8MHz
12MHz
Block Diagram
The following block diagram illustrates the main functional blocks.
O TP
P r o g r a m m in g
C ir c u itr y
I/O
P o rts
O TP
P ro g ra m
M e m o ry
S ta c k
R A M D a ta
M e m o ry
W a tc h d o g
T im e r
8 - b it
R IS C
M CU
C o re
W a tc h d o g
T im e r O s c illa to r
R eset
C ir c u it
In te rru p t
C o n tr o lle r
T im e r
B uzzer
D r iv e r
Low
V o lta g e
R eset
R C /C ry s ta l
O s c illa to r
In te rn a l
O s c illa to r
Pin Assignment
P A 3 /IN T
P A 2 /T M R 0
P A 1 /B Z
P A 0 /B Z
VSS
1
10
2
9
3
8
4
7
5
6
H T48R 01A
1 0 M S O P -A
PA4
P A 5 /O S C 2
P A 6 /O S C 1
P A 7 /R E S
VDD
Rev. 1.10
2
August 4, 2008
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