SP508E Datasheet, PDF (2/29 Pages) Exar Corporation – Rugged 20Mbps, 8 Channel Multi-Protocol Transceiver with Programmable DCE/DTE and Termination Resistors

ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of the
device at these ratings or any other above those indicated in
the operation sections of the specifications below is not implied.
Exposure to absolute maximum rating conditions for extended
periods of time may affect reliability.
V_CC ..................................................................................................+7V
Input Voltages:
Logic................................................. -0.3V to (V_CC+0.5V)
Drivers.............................................. -0.3V to (V_CC+0.5V)
Receivers.............................................................. ±15.5V
Output Voltages:
Logic................................................. -0.3V to (V_CC+0.5V)
Drivers ....................................................-7.5V to +12.5V
Receivers.......................................... -0.3V to (V_CC+0.5V)
Storage Temperature..................................................-65°C to +150°C
Power Dissipation...................................................................1520mW
(derate 19.0mW/°C above +70°C)
Package Derating:
ø_JA....................................................................52.7 °C/W
ø_JC......................................................................6.5 °C/W
STORAGE CONSIDERATIONS
Due to the relatively large package size, storage in a low
humidity environment is preferred. Large high density plastic
packages are moisture sensitive and should be stored in Dry
Vapor Barrier Bags. Prior to usage, the parts should remain
bagged and stored below 40°C and 60%RH. If the parts are
removed from the bag, they should be used within 48 hours
or stored in an environment at or below 20%RH.If the above
conditions cannot be followed, the parts should be baked
for four hours at 125°C in order to remove moisture prior to
soldering. Exar ships the 100-pin LQFP in Dry Vapor Barrier
Bags with a humidity indicator card and desiccant pack. The
humidity indicator should be below 30%RH.
ELECTRICAL SPECIFICATIONS
T_A = -40°C to +85°C and V_CC = +4.75V to +5.25V unless otherwise noted. Typical values are for T_A = 25C and Vcc = 5V.
PARAMETER
MIN. TYP. MAX.UNITS CONDITIONS
LOGIC INPUTS
V_IL
0.8 Volts
V_IH
2.0
Volts
LOGIC OUTPUTS
V_OL
0.4Volts
V_OH
2.4
Volts
V.28 DRIVER
DC Parameters
Outputs
Open Circuit Voltage
±15Volts
Loaded Voltage
±5.0
±15Volts
Short-Circuit Current
±100mA
Power-Off Impedance
300
Ω
AC Parameters
Outputs
Transition Time
1.5 µs
Instantaneous Slew Rate
30V/µs
Propagation Delay
t_PHL
t_PLH
Max.Transmission Rate
0.5
1
0.5
1
120 230
5
µs
5
µs
kbps
I_OUT= –3.2mA
I_OUT= 1.0mA
per Figure 1
per Figure 2
per Figure 4, V_OUT=0V
per Figure 5
per Figure 6; +3V to -3V
per Figure 3
V.28 Receiver
DC Parameters
Inputs
Input Impedance
Open-Circuit Bias
HIGH Threshold
LOW Threshold
AC Parameters
Propagation Delay
t_PHL
t_PLH
3
1.7
0.8
1.2
7
kΩ per Figure 7
+2.0 Volts
per Figure 8
3.0 Volts
Volts
50
100
500
ns
50
100
500
ns
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.comSP508E_100_072412