參數(shù)資料
型號(hào): ST72331
廠商: 意法半導(dǎo)體
英文描述: 8-Bit MCU with 8 to 16K ROM/OTP/EPROM, 256 EEPROM, 384 to 512 Bytes RAM, ADC, WDG, SCI, SPI and 2 Timers(8位微控制器(8M))
中文描述: 8位微控制器與8至16K的光碟/雙層/存儲(chǔ)器,256的EEPROM,384字節(jié)RAM為512,藝發(fā)局,水分散粒劑,脊髓損傷,SPI和2計(jì)時(shí)器(8位微控制器(8米))
文件頁(yè)數(shù): 27/98頁(yè)
文件大?。?/td> 1123K
代理商: ST72331
27/98
ST72331
I/O PORTS
(Cont’d)
Figure 20
.
I/O Block Diagram
Table 10. 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)
POLARITY
SEL
Pull-up
0
1
0
not present
0
P-buffer
0
0
1
not present
0
89
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