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HT45F12 bảng dữ liệu(PDF) 68 Page - Holtek Semiconductor Inc

tên linh kiện HT45F12
Giải thích chi tiết về linh kiện  8-Bit Flash MCU with Op Amps & Comparators
PDF  104 Pages
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nhà sản xuất  HOLTEK [Holtek Semiconductor Inc]
Trang chủ  http://www.holtek.com
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HT45F12 bảng dữ liệu(HTML) 68 Page - Holtek Semiconductor Inc

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HT45F12
8-Bit Flash MCU with Op Amps & Comparators
HT45F12
8-Bit Flash MCU with Op Amps & Comparators
OPA1 Switch Control
ThefollowingdiagramandtableillustratetheOPA1switchcontrolsettingandthecorresponding
connections.Notethatsomeswitchcontrolselectionswillforcesomeswitchestobecontrolledby
hardwareautomatically.
Forexample:
• TheS7CisclosedwhenA1O2CIN=1andtheS7CisopenedwhenA1O2CIN=0.
• TheA1PS=1willforceA1PSEL1,0=(00),i.e.S10C,S9C,S8Cwillbeopened.
• WhentheA1EN=0,S6Cswitchareopenedbyhardware,thentherelatedI/Opinscanbeusedas
theotherfunctions.
OPA1
A1E
A1N
A1P
A1OP
A1OEN
CMP1
CMP2
VL1
VM
VH1
OPA2
A1O2CIN
A1O2N
A1O2A2N
A1NS
A1PS
S4C
S5C
S6C
S7C
S8C
S9C
S10C
S3C
S2C
S1C
A1RS
A1OFM
S1C S2C
0
0
ON
ON
0
1
OFF
ON
1
0
ON
ON
A1O2A2P
A1PS=1 will force A1PSEL1,0=(00), i.e. S10C,S9C, S8C will be opened.
OPA1switchcontrol:
ThefollowingtableillustratestherelationshipbetweenOPA1controlregistersettingsandthe
switches:
OPA1 Control Bits in OPA1C0, OPA1C1
Switch Description
Results
A1PS
A1NS A1OFM A1RS A1PSEL1
A1PSEL0 A1O2N S4C
S5C
S6C
S8C~
S10C
OPA1 connections
1
1
1
0
00
0
ON
ON
OFF
OFF
Cali��ation �ode� A1N
1
1
1
1
00
0
ON
ON
OFF
OFF
Cali��ation �ode� A1P
1
1
0
×
00
0
ON
ON
OFF
OFF
In�ut = A1N� A1P
0
1
0
×
01
0
OFF
ON
OFF �10C ON In�ut = A1N� VH1
0
1
0
×
10
0
OFF
ON
OFF �9C ON In�ut = A1N� VM
0
1
0
×
11
0
OFF
ON
OFF �8C ON In�ut = A1N� VL1
1
1
0
×
00
1
ON
ON
ON
OFF
In�ut = A1N� A1P�
Connect A1N� A1E
1
0
0
×
00
1
ON
OFF
ON
OFF
In�ut = A1P�
OPA1 as �uffe�
0
1
0
×
01
0
OFF
ON
OFF �10C ON In�ut = A1N� VH1
0
1
0
×
10
0
OFF
ON
OFF �9C ON In�ut = A1N� VM
0
1
0
×
11
0
OFF
ON
OFF �8C ON In�ut = A1N� VL1
Note:1.S7CisclosedwhenA1O2CIN=1,S7CisopenedwhenA1O2CIN=0.
2.WhenA1OFM=1,S3C,S4C,S5Careclosed,S6C,S8C~S10Carealwaysopened.



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