SPI - electrical characteristics

L99MOD51XP

14/33

DS12667 Rev 6

3

SPI - electrical characteristics

voltages are referred to GND and currents are assumed positive, when the current flows

into the pin).

Table 12. Delay time from standby to active mode

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

Internal startup time

Switching from standby to

active mode. Time until not

Ready Bit goes low.

80

300

μs

Table 13. Inputs: CSN, CLK, PWM1/2 and DI

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

Input low level

1.5

2.0

V

Input high level

3.0

3.5

V

Input hysteresis

0.5

V

Pull up current at input CSN

-50

-25

-10

μA

Pull down current at input CLK

10

25

50

μA

Pull down current at input DI

10

25

50

μA

Pull down resistance at input EN

100

210

480

k



Input capacitance at input CLK, DI

and PWM

10

15

pF

1. Value of input capacity is not measured in production test. Parameter guaranteed by design.

Table 14. DI timing

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

Clock period

1000

ns

Clock high time

400

ns

Clock low time

400

ns

CSN setup time, CSN low before

rising edge of CLK

400

ns

CLK setup time, CLK high before

rising edge of CSN

400

ns

DI setup time

200

ns

DI hold time

200

ns

Rise time of input signal DI, CLK,

CSN

100

ns

Fall time of input signal DI, CLK,

CSN

100

ns