參數(shù)資料
型號(hào): ST72C124J4B6
英文描述: IC-ST7 MICROCONTROLLER
中文描述: 集成電路ST7微控制器
文件頁數(shù): 89/153頁
文件大?。?/td> 1988K
代理商: ST72C124J4B6
ST72334J/N, ST72314J/N, ST72124J
40/153
I/O PORTS (Cont’d)
Figure 26. I/O Port General Block Diagram
Table 6. I/O Port Mode Options
Legend: NI - not implemented
Off - implemented not activated
On - implemented and activated
Note: The diode to VDD is not implemented in the
true open drain pads. A local protection between
the pad and VSS is implemented to protect the de-
vice against positive stress.
Configuration Mode
Pull-Up
P-Buffer
Diodes
to VDD
to VSS
Input
Floating with/without Interrupt
Off
On
Pull-up with/without Interrupt
On
Output
Push-pull
Off
On
Open Drain (logic level)
Off
True Open Drain
NI
NI (see note)
DR
DDR
OR
DA
T
A
B
U
S
PAD
VDD
ALTERNATE
ENABLE
ALTERNATE
OUTPUT
1
0
OR SEL
DDR SEL
DR SEL
PULL-UP
CONFIGURATION
P-BUFFER
(see table below)
N-BUFFER
PULL-UP
(see table below)
1
0
ANALOG
INPUT
If implemented
ALTERNATE
INPUT
VDD
DIODES
(see table below)
FROM
OTHER
BITS
EXTERNAL
SOURCE (eix)
INTERRUPT
POLARITY
SELECTION
CMOS
SCHMITT
TRIGGER
REGISTER
ACCESS
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