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HT68F20 Datasheet(PDF) 167 Page - Holtek Semiconductor Inc

Part # HT68F20
Description  Enhanced I/O Flash Type MCU 8-Bit MCU with EEPROM
PDF  210 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT68F20 Datasheet(HTML) 167 Page - Holtek Semiconductor Inc

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HT68F20/HT68F30/HT68F40/HT68F50/HT68F60
Rev. 1.00
167
November 3, 2009
¨ HT68F30/HT68F40/HT68F50/HT68F60
Bit
76543210
Name
D7
ISEL1
ISEL0
SCOMEN
COM3EN
COM2EN
COM1EN
COM0EN
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
00000000
Bit 7
Reserved Bit
0: Correct level - bit must be reset to zero for correct operation
1: Unpredictable operation - bit must not be set high
Bit 6~5
ISEL1, ISEL0: Select SCOM typical bias current (VDD=5V)
00: 25
mA
01: 50
mA
10: 100
mA
11: 200
mA
Bit 4
SCOMEN: SCOM module control
0: disable
1: enable
Bit 3
COM3EN: PC7 or SCOM3 selection
0: GPIO
1: SCOM3
Bit 2
COM2EN: PC6 or SCOM2 selection
0: GPIO
1: SCOM2
Bit 1
COM1EN: PC1 or SCOM1 selection
0: GPIO
1: SCOM1
Bit 0
COM0EN: PC0 or SCOM0 selection
0: GPIO
1: SCOM0



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