DS1482S/TR 데이터 시트보기 (PDF) - Maxim Integrated

부품명

상세내역

제조사

DS1482S/TR

1-Wire Level Shifter and Line Driver with Load Sensor

Maxim Integrated 

Point 1:

Point 2:

Point 3:

Point 4:

DS1482

The 1-Wire slave device starts drawing current (internal micro or numeric processor is

running). The strong pullup (SPU) must be activated before the high current phase begins.

The 1-Wire slave device no longer draws current. After the deglitching time (tCF) is over, the

DONE signal turns high. The START signal must be activated no later than tSD before tCF is

over. Typically START is activated shortly after SPU, but not before the 1-Wire slave device

has started drawing high current.

As soon as the DONE signal is high, the host micro ends the strong pullup by changing SPU

to low.

While the DONE signal is high, the host micro changes START to low; this may occur

simultaneously with the state change of SPU or later. When START changes to low, DONE

becomes low.

Figure 5. Timing References TXD to I/O

TXD

I/O

tTI

tFIO

0.7 x VCCQ

0.2 x VCCQ

tTI

0.9 x VCC

0.1 x VCC

Figure 6. Timing References I/O to RXD

I/O

tIR

RXD

tF

0.7 x VCC

0.2 x VCC

tIR

0.9 x VCCQ

0.1 x VCCQ

tR

4 of 7

Share Link: