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| SP3070-3078E Datasheet, PDF (5/19 Pages) Sipex Corporation – 15kV ESD-Protected, 3.3V, 1/8 Load, Failsafe RS-485/RS422 Transceivers | |||
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DRIVER SWITCHING CHARACTERISTICS
Unless otherwise noted VCC = +3.3 ±0.3V, ambient temperature TMIN < TA < TMAX. Typical values are at VCC = 3.3,
ambient temperature TA = +25ºC.
SP3070E, SP3071E & SP3072E DRIVER SWITCHING CHARACTERISTICS
PARAMETER
SYMBOL MIN. TYP. MAX. UNITS
CONDITIONS
Driver Propagation Delay
tDPLH
tDPHL
250
250
Driver Differential Output Rise or
Fall Time
tDR, tDF
350
-
1500
ns CL = 50pF, RL = 54⦠,
-
1500 ns Figure 2 & 3
-
1600
ns
CL = 50pF, RL = 54⦠,
Figure 2 & 3
Driver Differential Output Skew
(tDPLH - t ) DPHL
Maximum Data Rate
tDSKEW
-
-
200
ns
CL = 50pF, RL = 54⦠,
Figure 2 & 3
250
-
-
kbps
Driver Enable to Output High
tDZH
-
Driver Enable to Output Low
tDZL
-
Driver Disable Time from Low
tDLZ
-
Driver Disable Time from High
tDHZ
-
Driver Enable from Shutdown to
Output High
tDZH(SHDN)
-
- 2500 ns Figure 4
- 2500 ns Figure 5
-
100 ns Figure 5
-
100 ns Figure 4
- 5500 ns Figure 4
Driver Enable from Shutdown to
Output Low
tDZL(SHDN)
-
- 5500 ns Figure 5
Time to Shutdown
tSHDN
50 200 600
ns
RECEIVER SWITCHING CHARACTERISTICS
Unless otherwise noted VCC = +3.3 ±0.3V, ambient temperature TMIN < TA < TMAX. Typical values are at VCC = 3.3,
ambient temperature TA = +25ºC.
Receiver Switching Characteristics SP3070, SP3071 & SP3072
PARAMETER
SYMBOL MIN. TYP. MAX. UNITS
CONDITIONS
Receiver Propagation Delay
tRPLH
tRPHL
-
-
200
ns
CL = 15pF, Figure 6 & 7
-
-
200
ns
Receiver Output Skew (tDPLH - tDPHL)
tRSKEW
-
-
30
ns CL = 15pF, Figure 6 & 7
Data Rate
250
-
-
kbps
Receiver Enable to Output High
tRZH
-
Receiver Enable to Output Low
tRZL
-
Receiver Disable Time from Low
tRLZ
-
Receiver Disable Time from High
tRHZ
-
Receiver Enable from Shutdown to
Output High
tRZH(SHDN)
-
-
50
ns Figure 8
-
50
ns Figure 8
-
200
ns Figure 8
-
100
ns Figure 8
- 4000 ns Figure 8
Receiver Enable from Shutdown to
Outtput Low
tRZL(SHDN)
-
- 4000 ns Figure 8
Date: 03/28/05
SP3070E - SP3078E Family, ±15kV ESD-Protected, Failsafe RS-485/RS422 Transceivers
5
© Copyright 2005 Sipex Corporation
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