HT45F23 View Datasheet(PDF) - Holtek Semiconductor
Part Name
Description
Manufacturer
HT45F23 Datasheet PDF : 152 Pages
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HT45F23/HT45F43
8-Bit Flash MCU with Op Amps & Comparators
Block Diagram
The following block diagram illustrates the main functional blocks.
Low
V o lta g e
D e te c t
W a tc h d o g
T im e r
F la s h /E E P R O M
P r o g r a m m in g
C ir c u itr y ( IC P )
Low
V o lta g e
R eset
8 - b it
R IS C
M CU
C o re
F la s h
P ro g ra m
M e m o ry
EEPRO M
D a ta
M e m o ry
T im e
B ase
RAM
D a ta
M e m o ry
H IR C
O s c illa to r
A /D
C o n v e rte r
PW M
G e n e ra to r
LC D
P F D /B u z z e r
D r iv e r
D r iv e r
I/O
S IM
T im e r s C o m p a r a to r s O P A s
D /A
C o n v e rte r
LD O
R eset
C ir c u it
In te rru p t
C o n tr o lle r
E R C /H X T
O s c illa to r
L IR C /L X T
O s c illa to r
Pin Assignment
VDD
1
P A 1 /C 1 O U T /T C 0 2
P A 0 /C N P /S C O M 0 3
P C 3 /X T 2 4
P C 2 /X T 1 5
P C 1 /A N 5 /O S C 2 6
P C 0 /A N 4 /O S C 1 7
P B 6 /A N 3 /R E S 8
16 V S S
1 5 P A 2 /A 1 P /C 2 O U T
1 4 P A 3 /A 1 N /IN T 0
1 3 P A 4 /A 1 E /T C 1
1 2 P A 5 /A 2 P /P F D
1 1 P A 6 /A 2 N /B Z
1 0 P A 7 /A 2 E /B Z
9 P B 3 /A N 0 /S C S
H T 4 5 F 2 3 /H T 4 5 F 4 3
1 6 N S O P -A
P C 6 /P W M 1 /C 2 P /S C O M 3 1
P C 5 /P W M 0 /C 1 N /S C O M 2 2
P C 4 /V R E F /V C A P /S C O M 1 3
P A 0 /C N P /S C O M 0 4
P C 3 /X T 2 5
P C 2 /X T 1 6
P C 1 /A N 5 /O S C 2 7
P C 0 /A N 4 /O S C 1 8
P B 6 /A N 3 /R E S 9
P B 5 /A N 2 /P IN T 1 0
P B 4 /A N 1 /A U D /P C L K 1 1
P B 3 /A N 0 /S C S 1 2
2 4 P A 1 /C 1 O U T /T C 0
23 V D D
22 V S S
2 1 P A 2 /A 1 P /C 2 O U T
2 0 P A 3 /A 1 N /IN T 0
1 9 P A 4 /A 1 E /T C 1
1 8 P A 5 /A 2 P /P F D
1 7 P A 6 /A 2 N /B Z
1 6 P A 7 /A 2 E /B Z
1 5 P B 0 /S D O /IN T 1
1 4 P B 1 /S D I/S D A
1 3 P B 2 /S C K /S C L
H T 4 5 F 2 3 /H T 4 5 F 4 3
2 4 S S O P -A
P A 1 /C 1 O U T /T C 0 1
P A 0 /C N P /S C O M 0 2
P C 3 /X T 2 3
P C 2 /X T 1 4
P C 1 /A N 5 /O S C 2 5
P C 0 /A N 4 /O S C 1 6
P B 6 /A N 3 /R E S 7
P B 4 /A N 1 /A U D /P C L K 8
P B 3 /A N 0 /S C S 9
P B 2 /S C K /S C L 1 0
20 V D D
19 V S S
1 8 P A 2 /A 1 P /C 2 O U T
1 7 P A 3 /A 1 N /IN T 0
1 6 P A 4 /A 1 E /T C 1
1 5 P A 5 /A 2 P /P F D
1 4 P A 6 /A 2 N /B Z
1 3 P A 7 /A 2 E /B Z
1 2 P B 0 /S D O /IN T 1
1 1 P B 1 /S D I/S D A
H T 4 5 F 2 3 /H T 4 5 F 4 3
2 0 S S O P -A
Rev. 1.20
9
September 15, 2011
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