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參數(shù)資料
| 型號： | ST6389 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 8-BIT MCUs WITH ON-SCREEN-DISPLAY FOR TV TUNING |
| 中文描述： | 8位微控制器對屏幕，電視調(diào)諧顯示器 |
| 文件頁數(shù)： | 29/82頁 |
| 文件大?。?/td> | 718K |
| 代理商： | ST6389 |
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ST6380, ST6381, ST6382, ST6383, ST6388, ST6389
I/O PORTS
(Cont’d)
4.1.1 Details of I/O Ports
When programmed as an input a pull-up resistor (if
available) can be switched active under program
control. When programmed as an output the I/O
port will operate either in the push-pull mode or the
open-drain mode according to the hardware fixed
configuration as specified below.
Port A
. PA0-PA3 are available as push-pull when
outputs. PA4-PA7 are available as open-drain (no
push-pull programmability) capable of withstand-
ing 12V (no resistive pull-up in input mode). PA6-
PA7 has been specially designed for higher driving
capability and are able to sink 25mA with a maxi-
mum VOL of 1V.
Port B
. All lines are available as open drain, push-
pull when outputs or analog input.
Port C
. PC0-PC3 are available as open-drain ca-
pable of withstanding a maximum VDD+0.3V.
PC4-PC7 are avail-able as open-drain capable of
withstanding 12V (no resistive pull-up in input
mode). Some lines are also used as I/O buffers for
signals coming from the on-chip SPI.
In this case the final signal on the output pin is
equivalent to a wired AND with the programmed
data output.
If the user needs to use the serial peripheral, the I/
O line should be set in output mode while the
open-drain configuration is hardware fixed; the
corresponding data bit must set to one. If the
latched interrupt functions are used (IRIN,
PWRIN) then the corresponding pins should be
set to input mode.
On ST638x the I/O pins with double or special
functions are:
– PC0/SCL (connected to the SPI clock signal)
– PC1/SDA (connected to the SPI data signal)
– PC3/SEN (connected to the SPI enable signal)
– PC4/PWRIN (connected to the PWRIN interrupt
latch)
– PC6/IRIN (connected to the IRIN interrupt latch)
All the Port A,B and C I/O lines have Schmitt-trig-
ger input configuration with a typical hysteresis of
1V.
Table 8. I/O Port Options Selection (Port A)
Note X:
Means don’t care.
Table 9. I/O Port Options Selection (Port B)
Note X:
Means don’t care.
DDR
0
0
1
DR
0
1
X
Mode
Input
Input
Output
Option
With on-chip pull-up resistor
Without on-chip pull-up resistor
Output open-drain or push-pull
DDR
0
0
0
1
1
OR
0
0
1
0
1
DR
0
1
1
x
X
Mode
Input
Input
Input
Output
Output
Option
With on-chip pull-up resistor
Without on-chip pull-up resistor
Analog input
Open-drain output
Push-pull output
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ST63RS1 | 8-BIT MICROCONTROLLER |
| ST63RT1 | 8-BIT MICROCONTROLLER |
| ST6400C1003 | CONTROLLER CHRONOTHERM |
| ST650C20L1 | THYRISTOR 1557A |
| ST650C22L1 | THYRISTOR 1557A |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ST6389B1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MCUs WITH ON-SCREEN-DISPLAY FOR TV TUNING |
| ST6389B4 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MCUs WITH ON-SCREEN-DISPLAY FOR TV TUNING |
| ST6391 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT HCMOS MCUs FOR TV FREQUENCY SYNTHESIS WITH OSD |
| ST6391B1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT HCMOS MCUs FOR TV FREQUENCY SYNTHESIS WITH OSD |
| ST6392 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT HCMOS MCUs FOR TV FREQUENCY SYNTHESIS WITH OSD |
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