SX1231 Просмотр технического описания (PDF) - Semtech Corporation

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SX1231

Low Power Integrated UHF Transceiver

Semtech Corporation 

SX1231

ADVANCED COMMUNICATIONS & SENSING

DATASHEET

2.4.5. Digital Specification

Conditions: Temp = 25°C, VDD = 3.3V, FXOSC = 32 MHz, unless otherwise specified.

Table 8 Digital Specification

Symbol

VIH

VIL

VOH

VOL

FSCK

tch

tcl

trise

tfall

tsetup

thold

tnsetup

tnhold

tnhigh

T_DATA

Description

Digital input level high

Digital input level low

Digital output level high

Digital output level low

SCK frequency

SCK high time

SCK low time

SCK rise time

SCK fall time

MOSI setup time

MOSI hold time

NSS setup time

NSS hold time

NSS high time between SPI

accesses

DATA hold and setup time

Conditions

Imax = 1 mA

Imax = -1 mA

from MOSI change to SCK rising

edge

from SCK rising edge to MOSI

change

from NSS falling edge to SCK rising

edge

from SCK falling edge to NSS rising

edge, normal mode

Min Typ Max Unit

0.8

-

- VDD

-

-

0.2 VDD

0.9

-

- VDD

-

-

0.1 VDD

-

-

10 MHz

50

-

- ns

50

-

- ns

-

5

- ns

-

5

- ns

30

-

- ns

60

-

- ns

30

-

- ns

30

-

- ns

20

-

- ns

250

-

- ns

Rev 3 - April 2010

Page 15

www.semtech.com

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