參數(shù)資料
型號(hào)： HT48RB8
廠商： Holtek Semiconductor Inc.
英文描述： 8-Bit USB Type OTP MCU
中文描述： 8位微控制器的USB型檢察官辦公室
文件頁(yè)數(shù)： 24/45頁(yè)
文件大?。?/td> 281K
代理商： HT48RB8
Application Circuits
Crystal or Ceramic Resonator for Multiple I/O Applications
Note:
The resistance and capacitance for reset circuit should be designed in such a way as to ensure that the VDD is
stable and remains within a valid operating voltage range before bringing RES to high.
X1 can use 6MHz or 12MHz, X1 as close OSC1 & OSC2 as possible
Components with * are used for EMC issue.
22pF capacitances are used for resonator only.
HT48RB8
Rev. 1.30
24
February 10, 2003
/
5
/
6
7 7
4 0 >
4
:
>
:
7 7
/ 6
/ 5
7 7
7 7
-
.
/
-
/ .
-
.
-
.
4
:
* .
:
F
* .
:
F
F
F
F
4
:
:
:
4
:
>
0
4
:
F
F
0
F
F
F
* .
: F
* .
: F
Mask Options
The following table shows all kinds of mask option in the microcontroller. All of the mask options must be defined to en-
sure proper system functioning.
No.
Option
1
Chip lock bit (by bit)
2
PA0~PA7 pull-high resistor enabled or disabled (by bit)
3
PA0~PA5 pull down resistor enabled or disabled (by bit)
4
PB0~PB7 pull-high resistor enabled or disabled (by nibble)
5
PC0~PC7 pull-high resistor enabled or disabled (by nibble)
6
PD0~PD7 pull-high resistor enabled or disabled (by nibble)
7
LVR enable or disable
8
WDT enable or disable
9
WDT clock source: f
SYS
/4 or WDTOSC
10
CLRWDT instruction(s): 1 or 2
11
PA0~PA7 output structures: CMOS/NMOS open-drain or PMOS open-drain (by bit)
12
PA0~PA7 wake-up enabled or disabled (by bit)
13
A/D converter enabled or disabled
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