ST92P141K4D0 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST92P141K4D0

8/16-BIT MCU FOR 3-PHASE AC MOTOR CONTROL

STMicroelectronics 

ST92141 - ELECTRICAL CHARACTERISTICS

A/D EXTERNAL TRIGGER TIMING TABLE

(VDD = 5V ± 10%, TA = –40°C to +85°C, CLoad = 50pF, fINTCLK = 25MHz, unless otherwise specified)

N° Symbol

Parameter

Value (Note)

Formula(1)

Min.

Unit

Max.

1 TwLOW External trigger pulse width

≥ 1.5 x Tck

60

- ns

2 TwHIGH External trigger pulse distance

≥ 1.5 x Tck

60

- ns

3 TwEXT External trigger active edges distance

≥ 138 x n x FDF x Tck n x FDF x 5.52 - µs

4 TdSTR EXTRG falling edge and first conversion start

0.5 x Tck

1.5 x Tck

20

60 ns

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.

Measurement points are taken with reference to VIH-VIH for positive pulse and VIL-VIL for negative pulse

(1) Formula guaranteed by design.

Legend:

Tck = INTCLK period = OSCIN period when OSCIN is not divided by 2;

2*OSCIN period when OSCIN is divided by 2;

OSCIN period / PLL factor when the PLL is enabled.

n = number of autoscanned channels (1 ≤ n ≤ 8)

FDF = Frequency Division Factor (ADC prescaler factor), refer to section 7.6.1 on page 147

A/D EXTERNAL TRIGGER TIMING

170/179

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