ST92141 STMicroelectronics, ST92141 Datasheet - Page 166

• Manufacturer Part Number: ST92141
• Description: 8/16-bit Mcu For 3-phase Ac Motor Control
• Manufacturer: STMicroelectronics

ST92141 - ELECTRICAL CHARACTERISTICS
EXTENDED FUNCTION TIMER EXTERNAL TIMING TABLE
(V
Note: The value in the left hand column shows the formula used to calculate the timing minimum or maximum from the oscillator clock period,
standard timer prescaler and counter programmed values.
The value in the right hand two columns show the timing minimum and maximum for an internal clock (INTCLK) at 25MHz, and minimum
prescaler factor (=2).
Measurement points are taken with reference to V
(1) Formula guaranteed by design.
Legend:
Tck = INTCLK period = OSCIN period when OSCIN is not divided by 2;
Prsc = Prescaler factor defined by Extended Function Timer Clock Control bits (CC1,CC0) on control register CR2 (values: 2,4,8).
EXTENDED FUNCTION TIMER EXTERNAL TIMING
166/179
N°
1
2
3
4
5
6
DD
1
= 5V
Tw
Symbol
Tw
Tw
Tw
EXTCLK
Tw
Tw
ICAPA
ICAPB
PEWH
PEWL
ECKD
PIWH
PIWL
EICD
10%, T
External Clock low pulse width (EXTCLK)
External Clock high pulse width (EXTCLK)
Input Capture low pulse width (ICAPx)
Input Capture high pulse width (ICAPx)
Distance between two active edges on EXTCLK
Distance between two active edges on ICAPx
OSCIN period x PLL factor when the PLL is enabled.
2 x OSCIN period when OSCIN is divided by 2;
A
=
–
40°C to +105°C, C
1
Parameter
IH
-V
IH
3
for positive pulse and V
Load
5
= 50pF, f
2
INTCLK
6
IL
-V
IL
= 25MHz, unless otherwise specified)
for negative pulse
2 x Tck x Prsc +10
2 x Tck + 10
2 x Tck + 10
2 x Tck + 10
2 x Tck + 10
Formula
4 x Tck + 10
Value
4
(1)
Min
170
170
90
90
90
90
Unit
ns
ns
ns
ns
ns
ns