L99DZ320 datasheet(40/146 Pages) STMICROELECTRONICS

40 / 146 page

Table 41. DI, CLK and CSN timing

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

Item

tCLK

Clock period

V1 = 5 V

250

B.013

tCLKH

Clock high time

V1 = 5 V

106.25

B.014

tCLKL

Clock low time

V1 = 5 V

106.25

B.015

tset CSN

CSN setup time, CSN low before rising edge of CLK

V1 = 5 V

150

B.016

tset CLK

CLK setup time, CLK high before rising edge of CSN

V1 = 5 V

150

B.017

tset DI

DI setup time

V1 = 5 V

B.018

thold DI

DI hold time

V1 = 5 V

B.019

tr in(1)

Rise time of input signal DI, CLK, CSN

V1 = 5 V

B.020

tf in(1)

Fall time of input signal DI, CLK, CSN

V1 = 5 V

B.021

1. Parameter specified by design, not tested in production.

See also Figure 11. SPI input timing.

Table 42. Output DO

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

Item

VDOL

Output low level

V1 = 5 V, IDO = -4mA

0.5

B.022

VDOH

Output high level

V1 = 5 V, IDO = 4 mA

V1-0.5

B.023

IDOLK

Tristate leakage current

VCSN = V1, 0 V < VDO < V1

-10

μA

B.024

CDO(1)

Tristate input capacitance

VCSN = V1,

0 V < V1 < 5.3 V

B.025

1. Parameter specified by design, not tested in production.

Table 43. DO timing

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

Item

tr DO(1)

DO rise time

CL = 50 pF, Iload = -1 mA

from 0.3 V1 to 0.7 V1

B.026

tf DO(1)

DO fall time

CL = 50 pF, Iload = 1 mA

from 0.3 V1 to 0.7 V1

B.027

ten DO tri L(1)

DO enable time from tristate to low level

CL = 50 pF, Iload = 1 mA

pull-up load to V1

100

B.028

tdis DO L tri(1)

DO disable time from low level to 3-state

CL = 50 pF, Iload = 4 mA

pull-up load to V1

100

B.029

ten DO tri H(1)

DO enable time from tristate to high level

CL = 50 pF, Iload = -1 mA

pull-down load to GND

100

B.030

td DO(1)

DO delay time

VDO < 0.3 V1 or VDO > 0.7 V1,

CL = 50 pF

B.032

1. Parameter is specified by design, not tested in production.

See Figure 12. SPI output timing.

L99DZ320

Electrical specifications

DS14235 - Rev 5

page 40/146

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