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參數(shù)資料
| 型號： | ST62E18C |
| 廠商： | 意法半導體 |
| 英文描述： | 16-Bit Registered Transceivers With 3-State Outputs 56-SSOP -40 to 85 |
| 中文描述： | 8位單片機與微控制器/ D轉(zhuǎn)換器，自動重加載定時器，UART的秘書長辦公室，安全復位和20管腳封裝 |
| 文件頁數(shù)： | 7/82頁 |
| 文件大小： | 536K |
| 代理商： | ST62E18C |
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ST62T18C/E18C
1.2 PIN DESCRIPTIONS
V
and V
. Power is supplied to the MCU via
these two pins. V
is the power connection and
V
SS
is the ground connection.
OSCin and OSCout.
These pins are internally
connected to the on-chip oscillator circuit. A quartz
crystal, a ceramic resonator or an external clock
signal can be connected between these two pins.
The OSCin pin is the input pin, the OSCout pin is
the output pin.
RESET
. The active-low RESET pin is used to re-
start the microcontroller.
TEST/V
.
The TEST must be held at V
for nor-
mal operation. If TEST pin is connected to a
+12.5V level during the reset phase, the EPROM/
OTP programming Mode is entered.
NMI.
The NMI pin provides the capability for asyn-
chronous interruption, by applying an external non
maskable interrupt to the MCU. The NMI input is
falling edge sensitive with Schmitt trigger charac-
teristics. The user can select as option the availa-
bility of an on-chip pull-up at this pin.
PA1-PA5.
These 5 lines are organised as one I/O
port (A). Each line may be configured under soft-
ware control as inputs with or without internal pull-
up resistors, input with interrupt generation and
pull-up resistor, open-drain or push-pull outputs.
PA3/ARTIMout and PA4/ARTIMin can be used re-
spectively as output and input pins for the embed-
ded 8-bit Auto-Reload Timer.
In addition,PA1-PA5 can sink 20mAfor direct LED
or TRIAC drive.
PB4...PB6.
These 3 lines areorganised as one I/O
port (B). Each line may be configured under soft-
ware control as inputs with or without internal pull-
up resistors, input with interrupt generation and
pull-up resistor, open-drain or push-pull outputs,
analog inputs for the A/D converter.
PD4...PD7
. These 4 lines are organised as one I/O
port (portD). Each line may be configured under
software control as input with or without internal
pull-up resistor, input with interrupt generation and
pull-up resistor, analog input open-drain or push-
pull output. In addition, the pins PD5/TXD1 and
PD4/RXD1 can be used as UART output (PD5/
TXD1) or UART input (PD4/RXD1).
TIMER
. This is the TIMER 1 I/O pin. In input mode,
it is connected to the prescaler and acts as ex-
ternal timer clock or as control gate for the internal
timer clock.In output mode, the TIMER pin outputs
the data bit when a time-out occurs.The user can
select as option the availability of an on-chip pull-
up at this pin.
7
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