SP491EEP-L Datasheet, PDF (3/12 Pages) Exar Corporation – Enhanced Full Duplex RS-485 Transceivers

T_MIN to T_MAXand V_CC = 5V ± 5% unless otherwise noted.
PARAMETERS
MIN.
SP490E RECEIVER
TYP.
ELECTRICAL CHARACTERISTICS
MAX. UNITS CONDITIONS
AC Characteristics
Maximum Data Rate 10 Mbps
Receiver Input to Output
20
45 100 ns

Receiver Input to Output
20
45 100 ns

Diff. Receiver Skew It_PLH-t_PHLI 13 ns

t_PLH; R_DIFF = 54Ω,
C_L1 = C_L2 = 100pF; Figures 3 & 7
t_PHL; R_DIFF = 54Ω,
C_L1 = C_L2 ⁼ 100pF; Figures 3 & 7
R_DIFF = 54Ω; C_L1 = C_L2 = 100pF;
Figures 3 & 7
POWER REQUIREMENTS
Supply Voltage
+4.75
+5.25 Volts
Supply Current
900 µA
ENVIRONMENTAL AND
MECHANICAL
Operating Temperature
Commercial (_C_)
Industrial (_E_)
Storage Temperature
Package
Plastic DIP (_P)
NSOIC (_N)
0
-40
-65
+70 °C
+85 °C
+150 °C
Figure 1. Driver DC Test Load Circuit
Figure 2. Receiver Timing Test Load Circuit
Figure 3. Driver/Receiver Timing Test Circuit
Figure 4. Driver Timing Test Load #2 Circuit
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • [phone] • www.exar.com

SP490E,491E_101_052413