ST92141 STMicroelectronics, ST92141 Datasheet - Page 10
ST92141
Manufacturer Part Number
ST92141
Description
8/16-bit Mcu For 3-phase Ac Motor Control
Manufacturer
STMicroelectronics
Datasheet
1.ST92141.pdf
(179 pages)
- Current page: 10 of 179
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ST92141 - GENERAL DESCRIPTION
Table 1. Power Supply Pins
10/179
V
V
V
AV
AV
PP
DD
SS
Name
DD
SS
9
Programming voltage for
EPROM/OTP devices. Must be
connected to V
Main power supply voltage (5V
10% (2 pins internally connected)
Digital Circuit Ground (2 pins in-
ternally connected)
Analog V
al Converter
Analog V
al Converter
DD
SS
Function
of the Analog to Digit-
of the Analog to Digit-
SS
in user mode.
±
24
17
18
32
10
1
9
25
18
19
34
10
11
1
Table 2. Primary Function pins
TACHO
UH
VH
WH
UL
VL
WL
RESET
OSCIN
OSCOUT
Name
Signal input from a tachogenera-
tor to the IMC controller for
measuring the rotor speed
U-phase PWM output signal
V-phase PWM output signal
W-phase PWM output signal
The complemented UH, VH, WH
output signals with added dead
time to avoid crossover conduc-
tion from the power driver
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
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
OSCOUT is the output of the os-
cillator inverter
Function
31
26
30
28
25
29
27
21
19
20
33
28
32
30
27
31
29
22
20
21
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