L9963T datasheet(16/45 Pages) STMICROELECTRONICS

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Symbol

Parameters

Test conditions

Min

Typ Max

Unit

VIN_HYS

Input hysteresis.

Calculation

VIN_H-VIN_L

0.15

0.4

fCUT_DIG_IN

Input Buffer RC filter. Applies to BNE_CPOL, NSLAVE,

TXEN_CPHA, SPICLKFREQ, DIS.

Design info, not

tested in ATE

0.7

MHz

TRC_DELAY

Analog delay introduced by the fCUT_DIG_IN RC filter.

VIO = 3.3 V

700

RIN_PD

Input pull down resistor. Applies to SCK, SDI.

100

130

kΩ

RIN_PU

Input pull up resistor. Applies to NCS, TXAMP, DIS.

100

130

kΩ

TTXEN_DEGLITCH

Up/Reset counter to avoid glitches on TXEN input. The

counter counts up if TXEN is stable. The counter is reset

upon a TXEN glitch (whatever slope). TXEN must be

stable at least TTXEN_DEGLITCH before the NCS assertion.

Guaranteed by

SCAN

562.5 625 687.5

TTXEN_HOLD

TXEN hold time after the NCS assertion.

300

TTXAMP_DEGLITCH

Up/Reset counter to avoid glitches on TXAMP input. The

counter counts up if TXAMP is stable. The counter is reset

upon a TXAMP glitch (whatever slope). TXAMP must be

stable at least TTXAMP_DEGLITCH + TTXAMP_SETUP before

the NCS assertion.

562.5 625 687.5

TTXAMP_HOLD

TXAMP hold time after the NCS assertion.

300

TISOFREQ_DEGLITCH

Up/Reset counter to avoid glitches on ISOFREQ

input. The counter counts up if ISOFREQ is stable.

The counter is reset upon a ISOFREQ glitch

(whatever slope). ISOFREQ must be stable at least

TISOFREQ_DEGLITCH+TISOFREQ_SETUP before the NCS

assertion.

562.5 625 687.5

TISOFREQ_HOLD

ISOFREQ hold time after the NCS assertion.

300

IIN_PD

Input pull down current. Applies to NSLAVE, ISOFREQ,

BNE/CPOL.

VPIN = 5 V

μA

IIN_PU

Input pull up current. Applies to TXEN/CPHA.

VPIN = 0 V

μA

3.2.1.8.2

Digital output

3.2.1.8.2.1

Output buffer

All parameters are tested and guaranteed in the following conditions, unless otherwise specified: 4.5 V ≤ VVDD ≤

5.5 V ; -40 °C < Tj < 125 °C

Table 12. Output buffer electrical characteristics

Symbol

Parameters

Test conditions

Min

Typ Max Unit

VOUT_L

Low output level.

I = 2 mA

0.4

VOUT_H

High output level.

I = -2 mA

VIO-0.4

VIO

TOUT_trans

Digital output Rise and Fall time.

Not valid for SDO.

Cload = 12 0pF 20-80% on rising edge

of DIG_OUT 80-20% on falling edge of

DIG_OUT

400

TBNE_SHORT_DET

BNE output short detection filter

time.

Guaranteed by SCAN

μs

L9963T

Pin configuration

DS13590 - Rev 4

page 16/45

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