MAX13223E Datasheet, PDF (4/11 Pages) Maxim Integrated Products – ±70V Fault-Protected, 3.0V to 5.5V, 2Tx/2Rx RS-232 Transceiver

±70V Fault-Protected, 3.0V to 5.5V,
2Tx/2Rx RS-232 Transceiver
TIMING CHARACTERISTICS
(V_CC = +3.0V to +5.5V, T_A = -40°C to +85°C, unless otherwise noted. Typical values are at V_CC = +3.3V, T_A = +25°C, unless otherwise
noted. For V_CC = +3.0V to +3.6V, C1–C3 = 0.1µF, C4 = 1µF. For V_CC = +4.5V to +5.5V, C1 = 47nF, C2–C3 = 330nF, C4 = 1µF.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Maximum Data Rate
DR
R_L = 3kΩ, C_L = 1000pF, one transmitter
switching, Figure 1
250
kbps
Receiver Positive or Negative
Threshold to INVALID High
t_INVH
V_CC = 5V, Figure 6b
1
µs
Receiver Positive or Negative
Threshold to INVALID Low
t_INVL
V_CC = 5V, Figure 6b
30
µs
Receiver Edge to Transmitters
Enabled
t_WU
V_CC = 5V, Figure 6b
135
µs
Receiver-Output Enable Time
Receiver-Output Disable Time
Receiver Skew
Transmitter Skew
Receiver Propagation Delay
Transmitter Propagation Delay
Transmitter Fall Time or Rise
Time
t_RX,EN
t_RX,DIS
|t_PRHL - t_PRLH|
|t_PTHL - t_PTLH|
t_PRHL
t_PRLH
t_PTHL
t_PTLH
Normal operation
Normal operation
(Note 5)
C_L = 150pF, Figure 4
C_L = 1nF, R_L = 3kΩ, Figure 3
t_R, t_F
Figure 3
200
ns
200
ns
50
ns
200
ns
0.3
µs
0.3
0.8
µs
0.6
0.3
µs
Transmitter Time to Exit
Shutdown
t_SHDN
Figure 7
100
µs
Output Recovery Time
Transition-Region Slew Rate
t_TX,REC
SR_OUT
C_L = 1nF, R_L = 5kΩ (Note 6)
V_CC = 3.3V, R_L = 3kΩ to 7kΩ, T_A = +25°C,
measured from +3V to -3V or -3V to +3V, one 6
transmitter switching, C_L = 1nF
100
µs
30 V/µs
Note 2: All devices are 100% production tested at T_A = +85°C. Specifications are over -40°C to +85°C and are guaranteed by design.
Note 3: Both receivers will operate over the ±70V input range. The input resistance increases with input voltage. The input resistance
will increase within 24V ≤ |VR_IN| ≤ 32V.
Note 4: Guaranteed by design, not production tested.
Note 5: Transmitter skew is measured at the transmitter zero crosspoints.
Note 6: Output recovery time is the delayed time for the transmitter to enter normal operating mode after an overvoltage condition.
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