SP337EBEY-L Datasheet, PDF (7/18 Pages) Exar Corporation – 3.3V TO 5V RS-232/RS-485/RS-422 MULTIPROTOCOL TRANSCEIVER

SP337E
REV. 1.0.2
3.3V TO 5V RS-232/RS-485/RS-422 MULTIPROTOCOL TRANSCEIVER
UNLESS OTHERWISE NOTED: VCC = +3.3V +/-5% OR +5.0V +/-5%, C1-C4 = 0.1μF; TA = TMIN TO TMAX.
TYPICAL VALUES ARE AT VCC = 3.3V, TA = +25^OC.
SYMBOL
PARAMETERS
MIN. TYP. MAX. UNITS
CONDITIONS
RS-232 (SP337EB ONLY) DATA RATE = 250kbps, ONE TRANSMITTER SWITCHING
Maximum Data Rate
250
kbps R_L = 3kΩ, C_L = 2500pF
t_PHL, t_PLH Receiver Propagation Delay
100
ns C_L = 150pF, Figures 20 and 21
⏐t_PHL-t_PLH⏐ Receiver Skew
100 ns C_L = 150pF, Figures 20 and 21
t_PHL, t_PLH Driver Propagation Delay
800
⏐t_PHL-t_PLH⏐ Driver Skew
400 ns
Receiver Output Enable time
400 ns
Receiver Output Disable time
t_THL, t_TLH
Transition-Region Slew Rate from
+3.0V to -3.0V or -3.0V to +3.0V
4
400 ns
Vcc = 3.3V, R_L = 3kΩ to 7kΩ,
30 V/μs C_L = 150pF to 2500pF,
Figures 18 and 19
RS-232 (SP337EU ONLY) DATA RATE = 1Mbps, ONE TRANSMITTER SWITCHING
Maximum Data Rate
t_PHL, t_PLH Receiver Propagation Delay
⏐t_PHL-t_PLH⏐ Receiver Skew
t_PHL, t_PLH Driver Propagation Delay
⏐t_PHL-t_PLH⏐ Driver Skew
Receiver Output Enable time
1
Mbps R_L = 3kΩ, C_L = 250pF
100
ns C_L = 150pF, Figures 20 and 21
100 ns C_L = 150pF, Figures 20 and 21
250
150 ns
400 ns
Receiver Output Disable time
400 ns
t_THL, t_TLH
Transition-Region Slew Rate from
+3.0V to -3.0V or -3.0V to +3.0V
50
V/μs ^{Vcc = 3.3V, RL = 3kΩ,}
C_L = 150pF, Figures 18 and 19
RS-485/RS-422 (SP337EB and SP337EU) DATA RATE = 15Mbps, ONE TRANSMITTER SWITCHING
Maximum Data Rate
15
20
Mbps R_DIFF = 54Ω, C_L = 50pF
t_DPHL, t_DPLH
Differential Output Propagation
Delay Time
60 120 ns Figures 5 and 6
t_R, t_F
⏐t_DPHL-
t_DPLH⏐
t_DZH, t_DZL
t_DHZ, t_DLZ
t_PHL, t_PLH
t_ZH
t_ZL
t_HZ
t_LZ
Driver Rise and Fall Time
Driver Propagation Delay Skew
Driver Output Enable Time
Driver Output Disable Time
Receiver Propagation Delay
Receiver Enable to Output High
Receiver Enable to Output Low
Receiver Output High to Disable
Receiver Output Low to Disable
15
25 ns Figures 5 and 6
10 ns Figures 5 and 6
400 ns Figures 7, 8, 9 and 10
400 ns Figures 7, 8, 9 and 10
80 150 ns Figures 11 and 12
100 200 ns Figures 13 and 14
100 200 ns Figures 13 and 15
100 200 ns Figures 13 and 16
100 200 ns Figures 13 and 17
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