SP483EEN-L Datasheet, PDF (3/12 Pages) Exar Corporation – Enhanced Low EMI Half-Duplex RS-485 Transceiver

T_MIN to T_MAX and V_CC = +5.0V +/-5% unless otherwise noted.
PARAMETERS
MIN.
SP483E DRIVER (continued)
AC Characteristics
Driver Enable to Output High
250
TYP.
Driver Enable to Output Low
250
Driver Disable Time from High
300
Driver Disable Time from Low
300
SP483E RECEIVER
DC Characteristics
Differential Input Threshold
-0.2
Input Hysteresis
20
Output Voltage High
3.5
Output Voltage Low
Three-State ( High Impedance)
Output Current
Input Resistance
12
15
Input Current (A, B); V_IN = 12V
Input Current (A, B); V_IN = -7V
Short Circuit Current
7
SP483E RECEIVER
AC Characteristics
Max. Transmission Rate
250
Receiver Input to Output
250
Receiver Input to Output
250
Differential Receiver Skew
100
|t_PHL - t_PLH|
Receiver Enable to Output Low
45
Receiver Enable to Output High
45
Receiver Disable from LOW
45
Receiver Disable from High
45
ELECTRICAL CHARACTERISTICS
MAX. UNITS CONDITIONS
2000
2000
3000
3000
ns C_L = 100pF, See Figures 4 and 6,
S₂ closed
ns C_L = 100pF, See Figures 4 and 6,
S₁ closed
ns C_L = 15pF, See Figures 4 and 6,
S₂ closed
ns C_L = 15pF, See Figures 4 and 6,
S₁ closed
+0.2
0.4
+/-1
+1.0
-0.8
95
Volts
mV
Volts
Volts
µA
-7V ≤ V_CM ≤ +12V
V_CM = 0V
I_O = -4mA, V_ID = +200mV
I_O = +4mA, V_ID = +200mV
0.4V ≤ V_O ≤ 2.4V; RE = 5V
kΩ -7V ≤ V_CM ≤ +12V
mA DE = 0V, V_CC = 0V or 5.25V,
V_IN = 12V
mA DE = 0V, V_CC = 0V or 5.25V,
V_IN = -7V
mA 0V ≤ V_O ≤ V_CC
2000
2000
70
70
70
70
kbps
ns
ns
ns
ns
ns
ns
ns
RE = 0V, DE = 0V
t_{PLH ;} See Figures 3 & 7,
R_DIFF = 54Ω, C_L1 = C_L2 = 100pF
t_{PHL ;} See Figures 3 & 7,
R_DIFF = 54Ω, C_L1 = C_L2 = 100pF
R_DIFF = 54Ω, C_L1 = C_L2 = 100pF,
See Figures 3 and 7
C_RL = 15pF, Figures 2 & 8;
S₁ Closed
C_RL = 15pF, Figures 2 & 8;
S₂ Closed
C_RL = 15pF, Figures 2 & 8;
S₁ Closed
C_RL = 15pF, Figures 2 & 8;
S₂ Closed
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com

SP483E_100_020912