ST72141K2M3 datasheet(9/132 Pages) STMICROELECTRONICS

tên linh kiện	ST72141K2M3

Giải thích chi tiết về linh kiện	8-BIT MCU WITH ELECTRIC-MOTOR CONTROL, ADC, 16-BIT TIMERS, SPI INTERFACE

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ST72141K

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1.3 EXTERNAL CONNECTIONS

The following figure shows the recommended ex-

ternal connections for the device.

The VPP pin is only used for programming OTP

and EPROM devices and must be tied to ground in

user mode.

The 10 nF and 0.1 µF decoupling capacitors on

the power supply lines are a suggested EMC per-

formance/cost tradeoff.

The external reset network is intended to protect

the device against parasitic resets, especially in

noisy environments.

Unused I/Os should be tied high to avoid any un-

necessary power consumption on floating lines.

An alternative solution is to program the unused

ports as inputs with pull-up.

Figure 5. Recommended External Connections

VPP

VDD

VSS

OSC1

OSC2

RESET

VDD

0.1µF

+

See

Clocks

Section

VDD

0.1µF

EXTERNAL RESET CIRCUIT

Or configure unused I/O ports

Unused I/O

10µF

4.7K

10K

by software as input with pull-up

VDD

Detector (LVD) is used

Optional if Low Voltage

VDD

VSS

Số phần tương tự - ST72141K2M3

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Mô tả tương tự - ST72141K2M3

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