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| MAX14781E_14 Datasheet, PDF (4/19 Pages) Maxim Integrated Products – Half-Duplex RS-485 Transceiver with Polarity Correction | |||
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MAX14781E
Half-Duplex RS-485 Transceiver
with Polarity Correction
Switching Characteristics
(VCC = 5V ± 10%, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VCC = 5V and TA = +25°C.)(Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
DRIVER
Driver Propagation Delay
Differential Driver Output Skew
|tDPLH - tDPHL|
Driver Differential Output Rise or
Fall Time
tDPLH
tDPHL
RL = 54Ω, CL = 50pF, Figures 2, 3
200
200
tDSKEW RL = 54Ω, CL = 50pF, Figures 2, 3
tR, tF
RL = 54Ω, CL = 50pF, Figures 2, 3
250
1000
ns
1000
140
ns
900
ns
Maximum Data Rate
Driver Enable to Output High
DRMAX
370
tDZH
RL = 500Ω, CL = 50pF, Figures 4,
5 (Note 9)
2500
kbps
ns
Driver Enable to Output Low
tDZL
RL = 500Ω, CL = 50pF, Figures 4,
5 (Note 9)
2500
ns
Driver Disable Time from Low
tDLZ
RL = 500Ω, CL = 50pF, Figures 4,
5 (Note 9)
100
ns
Driver Disable Time from High
tDHZ
RL = 500Ω, CL = 50pF, Figures 4,
5 (Note 9)
100
ns
Driver Enable from Shutdown to
Output High
tDZH(SHDN)
RL = 1kΩ, CL = 15pF, Figures 4, 5
(Note 9)
5.5
μs
Driver Enable from Shutdown to
Output Low
tDZL(SHDN)
RL = 1kΩ, CL = 15pF, Figures 4, 5
(Note 9)
5.5
μs
Time to Shutdown
RECEIVER
tSHDN
(Note 10)
50
340
700
ns
Receiver Propagation Delay
Receiver Output Skew
Maximum Data Rate
Receiver Enable to Output High
tRPLH
tRPLH
tRSKEW
DRMAX
tRZH
CL = 15pF, Figures 6, 7
CL = 15pF, Figures 6, 7
RL = 1kΩ, CL = 15pF, Figure 8
(Note 9)
0.125
200
ns
200
30
ns
500
kbps
50
ns
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