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ST92141 Fiches technique(PDF) 10 Page - STMicroelectronics

No de pièce ST92141
Description  8/16-BIT MCU FOR 3-PHASE AC MOTOR CONTROL
Download  179 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST92141 Fiches technique(HTML) 10 Page - STMicroelectronics

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ST92141 - GENERAL DESCRIPTION
9
Table 1. Power Supply Pins
Table 2. Primary Function pins
Name
Function
VPP
Programming voltage for
EPROM/OTP devices. Must be
connected to VSS in user mode.
24
25
VDD
Main power supply voltage (5V
±
10% (2 pins internally connected)
17
18
11
VSS
Digital Circuit Ground (2 pins in-
ternally connected)
18
19
32
34
AVDD
Analog VDD of the Analog to Digit-
al Converter
910
AVSS
Analog VSS of the Analog to Digit-
al Converter
10
11
Name
Function
TACHO
Signal input from a tachogenera-
tor to the IMC controller for
measuring the rotor speed
31
33
UH
U-phase PWM output signal
26
28
VH
V-phase PWM output signal
30
32
WH
W-phase PWM output signal
28
30
UL
The complemented UH, VH, WH
output signals with added dead
time to avoid crossover conduc-
tion from the power driver
25
27
VL
29
31
WL
27
29
RESET
Reset (input, active low). The
ST9+ is initialised by the Reset
signal. With the deactivation of
RESET, program execution be-
gins from the memory location
pointed to by the vector con-
tained in memory locations 00h
and 01h
21
22
OSCIN
OSCIN is the input of the oscilla-
tor inverter and internal clock
generator. OSCIN and OSCOUT
connect a parallel-resonant crys-
tal (3 to 5 MHz), or an external
source to the on-chip clock oscil-
lator and buffer
19
20
OSCOUT
OSCOUT is the output of the os-
cillator inverter
20
21


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