STC485E Datasheet, PDF (3/11 Pages) List of Unclassifed Manufacturers – ±15kV ESD-Protected,Slew-Rate-Limited, Fail-Safe,True RS-485 Transceivers

Switching Characteristics
(VCC = +5V ±5%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V and TA = +25°C.) (Note 1)
PARAMETER
Driver Input-to-Output
Driver Output Skew
| tDPLH - tDPHL |
Driver Rise or Fall Time
Maximum Data Rate
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable Time from Low
Driver Disable Time from High
Receiver Input to Output
| tRPLH - tRPHL | Differential
Receiver Skew
Receiver Enable to Output Low
Receiver Enable to Output High
Receiver Disable Time from Low
Receiver Disable Time from
High
Time to Shutdown
Driver Enable from
Shutdown-to-Output High
Driver Enable from
Shutdown-to-Output Low
Receiver Enable from
Shutdown-to-Output High
Receiver Enable from
Shutdown-to-Output Low
SYMBOL
tDPLH
tDPHL
tDSKEW
tDR, tDF
fMAX
tDZH
tDZL
tDLZ
tDHZ
tRPLH,
tRPHL
tRSKD
tRZL
tRZH
tRLZ
tRHZ
tSHDN
tDZH(SHDN)
tDZL(SHDN)
tRZH(SHDN)
tRZL(SHDN)
CONDITIONS
Figures 4 and 6, RDIFF = 54? ,
CL1 = CL2 = 100pF
Figures 4 and 6, RDIFF = 54? ,
CL1 = CL2 = 100pF
Figures 4 and 6, RDIFF = 54? ,
CL1 = CL2 = 100pF
MIN
250
250
200
Figures 5 and 7, CL = 100pF, S2 closed
Figures 5 and 7, CL = 100pF, S1 closed
Figures 5 and 7, CL = 15pF, S1 closed
Figures 5 and 7, CL = 15pF, S2 closed
Figures 11 and 13; | VID | =2?.0V;
rise and fall time of VID =1?5ns
Figures 8 and 10; | VID | =2?.0V;
3
rise and fall time of VID =1?5ns
Figures 3 and 9, CL = 100pF, S1 closed
Figures 3 and 9, CL = 100pF, S2 closed
Figures 3 and 9, CL = 100pF, S1 closed
Figures 3 and 9, CL = 100pF, S2 closed
(Note 4)
50
Figures 5 and 7, CL = 15pF, S2 closed
Figures 5 and 7, CL = 15pF, S1 closed
Figures 3 and 9, CL = 100pF, S2 closed
Figures 3 and 9, CL = 100pF, S1 closed
TYP MAX UNITS
720
1000
ns
720
1000
-3
±100 ns
530
750 ns
500 kbps
2500 ns
2500 ns
100 ns
100 ns
127
200 ns
3
±30 ns
20
50 ns
20
50 ns
20
50 ns
20
50 ns
200
600 ns
4500 ns
4500 ns
3500 ns
3500 ns