HM3085 datasheet(4/12 Pages) HMSEMI

4 / 12 page

Maximum Data Rate

f MAX

1000

Kbps

Driver Enable to Output High

t DZH

Figure 4, CL =100pF, S2 closed

2500

Driver Enable to Output Low

t DZL

Figure 4, CL =100pF, S1 closed

2500

Driver Disable Time from Low

t DLZ

Figure 4, CL = 15pF,

S1 closed

100

Driver Disable Time from High

t DHZ

Figure 4, CL = 15pF,S2 closed

100

Receiver Input to Output

t RPLH,

t RPHL

Figure 5, | VID |≧2.0V rise and fall

time of VID≦15ns

127

200

|tRPLH –tRPHL| Differential Receiver

Skew

t RSKD

Figure 5, | VID |≧2.0V rise and fall

time of VID≦15ns

3±30

Receiver Enable to Output Low

t RZL

Figure 2, CL =100pF, S1 closed

Receiver Enable to Output High

t RHZ

Figure 2, CL =100pF, S2 closed

Receiver Disable Time from Low

t RLZ

Figure 2, CL =100pF, S1 closed

Receiver Disable Time from High

t RHZ

Figure 2, CL =100pF, S2 closed

Time to Shutdown

t SHDN

(Note 4)

200

600

Driver Enable from

Shutdown-to-Output High

t DZH(SHDN)

Figure 4, CL = 15pF,S2 closed

4500

Driver Enable from

Shutdown-to-Output Low

t DZL(SHDN)

Figure 4, CL = 15pF,S1 closed

4500

Receiver Enable from

Shutdown-to-Output High

t RZH(SHDN)

Figure 2, CL =100pF,S2 closed

3500

Receiver Enable from

Shutdown-to-Output Low

t RZL(SHDN)

Figure 2, CL =100pF,S1 closed

3500

Note 1: All currents into the device are positive; all currents out of the device are negative. All voltages are referred to device

ground unless otherwise noted.

Note 2: ΔVOD and ΔVOC are the changes in VOD and VOC, respectively, when the DI input changes state.

Note 3: Maximum current level applies to peak current just prior to fold-back current limiting; minimum current level applies

during current limiting.

Note 4: The device is put into shutdown by bringing

R E

high and DE low. If the enable inputs are in this state for less than 50ns,

the device is guaranteed not to enter shutdown. If the enable inputs are in this state for at least 600ns, the device is

guaranteed to have entered shutdown.

HM3085

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