st92f124 STMicroelectronics, st92f124 Datasheet - Page 390

• Manufacturer Part Number: st92f124
• Description: 8/16-bit Single Voltage Flash Mcu Family With Ram, E3 Tmemulated Eeprom, Can 2.0b And J1850 Blpd
• Manufacturer: STMicroelectronics

ST92F124/F150/F250 - ELECTRICAL CHARACTERISTICS
STANDARD TIMER TIMING TABLE
(V
unless otherwise specified)
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 24MHz, with minimum and
maximum prescaler value and minimum and maximum counter value.
Measurement points are V
(1) On this product STIN is not available as Alternate Function but it is internally connected to a precise clock source directly derived from the
crystal oscillator. Refer to RCCU chapter for details about clock distribution.
Legend:
Tck = INTCLK period = Crystal Oscillator Clock period when CLOCK1 is not divided by 2;
Psc = Standard Timer Prescaler Register content (STP): from 0 to 255
Cnt = Standard Timer Counter Registers content (STH,STL): from 0 to 65535
T
STANDARD TIMER TIMING
390/426
1
N°
STIN
1
2
3
4
DD
= Standard Timer Input signal period (STIN) , T
= 5V 10%, T
TwSTOL
TwSTOH
TwSTIL
TwSTIH
Symbol
Crystal Oscillator Clock period x PLL factor when the PLL is enabled.
2 x Crystal Oscillator Clock period when CLOCK1 is divided by 2;
STOUT Low Pulse Width
STOUT High Pulse Width
STIN High Pulse Width
STIN Low Pulse Width
A
OH
=
or V
–
40°C to +125°C, C
IH
for positive pulses and V
Parameter
STIN
Load
OL
x Tck
= 50pF, f
or V
IL
4 x (Psc+1) x (Cnt+1) x Tck
4 x (Psc+1) x (Cnt+1) x Tck
(Psc+1) x (Cnt+1) x T
(Psc+1) x (Cnt+1) x T
for negative pulses.
INTCLK
Formula
4 x Tck
4 x Tck
= 24MHz, Push-pull output configuration,
Value
STIN
STIN
Min
167
167
(1)
(1)
(1)
(1)
Max
2.8
2.8
(1)
(1)
(1)
(1)
Unit
ns
ns
ns
ns
ns
ns
s
s