參數(shù)資料
型號: ST72C171
廠商: 意法半導(dǎo)體
英文描述: 8-BIT MCU with 8K FLASH, ADC, WDG, SPI, SCI, TIMERS SPGAs Software Programmable Gain Amplifiers, OP-AMP
中文描述: 8位8K閃存,ADC的,水分散粒劑,SPI和脊髓損傷,定時器SPGAs軟件可編程增益放大器,運算放大器控制器
文件頁數(shù): 32/152頁
文件大小: 1384K
代理商: ST72C171
ST72C171
32/152
I/O PORTS
(Cont’d)
Figure 26
.
I/O Block Diagram
Table 5. Port Mode Configuration
Configuration Mode
Floating
Pull-up
Push-pull
True Open Drain
Open Drain (logic level)
Legend:
0 -
1 -
present, not activated
present and activated
Notes:
– No OR Register on some ports (see register map).
– ADC Switch on ports with analog alternate functions.
DR
LATCH
DDR
LATCH
D
DR SEL
DDR SEL
V
DD
PAD
ANALOG
SWITCH
ANALOG ENABLE
(ADC)
M
U
X
ALTERNATE
ENABLE
ALTERNATE
ENABLE
ALTERNATE ENABLE
1
C
ALTERNATE
OUTPUT
M
U
X
ALTERNATE INPUT
PULL-UP (S
EE
T
ABLE
BELOW
)
P-BUFFER
(S
EE
T
ABLE
B
ELOW
)
N-BUFFER
0
1
0
OR
LATCH
OR SEL
FROM
OTHER
BITS
EXTERNAL
INTERRUPT
PULL-UP
CONDITION
GND
(S
EE
T
ABLE
BELOW
)
(S
EE
N
OTE
BELOW
)
CMOS
SCHMITT TRIGGER
SOURCE (EIx)
SENSITIVITY
SEL
Pull-up
0
1
0
not present
0
P-buffer
0
0
1
not present
0
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