HT45F12
8-Bit Flash MCU with Op Amps & Comparators
Programmer Pin
MCU Pins
RE�
DATA
CLK
PBꢅ
PA0
PAꢄ
Programmer and MCU Pins
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C
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P
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m
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m
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D
_
D
V
V
D
D
R
S
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P
B
6
D
T
A
A
D
T
A
A
C
K
L
C
K
L
W
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V
S
S
V
S
S
*
*
*
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Note:ꢀ*ꢀmayꢀbeꢀresistorꢀorꢀcapacitor.ꢀTheꢀresistanceꢀofꢀ*ꢀmustꢀbeꢀgreaterꢀthanꢀ1kΩꢀorꢀtheꢀ
capacitanceꢀofꢀ*ꢀmustꢀbeꢀlessꢀthanꢀ1nF.
RAM Data Memory
TheꢀDataꢀMemoryꢀisꢀaꢀvolatileꢀareaꢀofꢀ8-bitꢀwideꢀRAMꢀinternalꢀmemoryꢀandꢀisꢀtheꢀlocationꢀwhereꢀ
temporaryꢀinformationꢀisꢀstored.
B
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0
k
B
a
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1
k
0
0
0
1
H
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I
R
A
0
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A
0
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P
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M
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P
M
0
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4
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Data Memory Structure
Note:ꢀMostꢀofꢀtheꢀDataꢀMemoryꢀbitsꢀcanꢀbeꢀdirectlyꢀmanipulatedꢀusingꢀtheꢀSETꢀ[m].iꢀandꢀCLRꢀ[m].
iꢀwithꢀtheꢀexceptionꢀofꢀaꢀfewꢀdedicatedꢀbits.ꢀTheꢀDataꢀMemoryꢀcanꢀalsoꢀbeꢀaccessedꢀthroughꢀ
theꢀmemoryꢀpointerꢀregisters.
Rev. 0.00
ꢄ3
�eꢀteꢁꢂeꢃ ꢄꢅꢆ ꢄ01ꢄ
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
