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ST72589BW Datasheet(PDF) 143 Page - STMicroelectronics

Part # ST72589BW
Description  8-BIT MCU WITH NESTED INTERRUPTS, DOT MATRIX LCD, ADC, TIMERS, PWM-BRM, SPI, SCI, I²C, CAN INTERFACES
PDF  158 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72589BW Datasheet(HTML) 143 Page - STMicroelectronics

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9.6 SUPPLY, RESET and CLOCK CHARACTERISTICS
The values given in the specifications are general-
ly not applicable for all chips. Therefore, only the
limits listed below are valid for the product.
The values below substitute the corresponding
values in the specifications of dedicated functions.
(TA=-40 to +85
oC, V
DD-VSS=5V unless otherwise specified)
Notes:* VDD has to fall down to VTN to re-arm the POR function
** POR function reset the device through a pulse generation at VPOR.
Note: RSmax is the equivalent serial resistance of the crystal or ceramic resonator.
RESET
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
RON
Reset weak pull-up resistance
VIN > VIH
VIN < VIL
20
60
40
120
80
240
K
Ω
tPULSE
External RESET pin Pulse time
1.5
tCPU
POWER ON RESET
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VTN
Re-initialization level *
0.8
V
VPOR
Reset generation level **
2.0
2.6
3.4
V
MAIN EXTERNAL CLOCK SOURCE
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fOSC
Main oscillator frequency
Square signal with
50% Duty Cycle
16
MHz
VOSC
OSC1 pin voltage
VDD
V
MAIN OSCILLATOR
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fOSC
Main oscillator frequency
8
16
MHz
CLi
Load Capacitances
RSmax=100Ω ∗
10
20
pF
tSTART
Oscillator start-up time
Depends on resonator quality. A typical value is 10ms



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