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| SP334CT-L-TR Datasheet, PDF (2/14 Pages) Exar Corporation – Programmable RS-232/RS-485 Transceiver | |||
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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.
VCC.......................................................................+7V
Input Voltages
Logic............................-0.5V to (Vcc+0.5V)
Drivers.........................-0.5V to (Vcc+0.5V)
Receivers......................+/-30V @ â¤100mA
Driver Outputs..................................................+/-15V
Maximum Data Rate...........................8Mbps (note 1)
Storage Temperature.......................-65ËC to +150ËC
Power Dissipation
28-pin WSOIC...................................1000mW
Package Derating:
28-pin WSOIC
øJA................................................40 °C/W
Note 1: Exceeding the maximum data rate of 8Mbps at TA = 85°C may permanently damage the device
SPECIFICATIONS
Limits are specified at TA = 25°C and VCC = +5.0V unless otherwise noted.
PARAMETER
MIN. TYP. MAX.
Logic Inputs
VIL
VIH
LOGIC OUTPUTS
0.8
2.0
VOL
VOH
Output Tri-state Leakage
0.4
2.4
10
RS-232 DRIVER
DC Characteristics
HIGH Level Output
+5.0
+15.0
LOW Level Output
-15.0
-5.0
Open Circuit Voltage
-15
+15
Short Circuit Current
+/-100
Power Off Impedance
300
AC Characteristics
Slew Rate
30
Transistion Time
1.56
Maximum Data Rate
Propagation Delay tPHL
Propagation Delay tPLH
RS-232 RECEIVER
DC Characteristics
HIGH Threshold
LOW Threshold
Receiver Open Circuit Bias
Input Impedance
120
235
2
8
2
8
1.7
3.0
0.8
1.2
+2.0
3
5
7
UNITS CONDITIONS
Volts
Volts
Volts
Volts
µA
IOUT = -3.2mA
IOUT = 1.0mA
0.4V ⤠VOUT ⤠+2.4V
Volts
Volts
Volts
mA
â¦
RL = 3kâ¦, VIN = 0.8V
RL = 3kâ¦, VIN = 2.0V
VOUT = 0V
VCC = 0V, VOUT = +/-2.0V
V/µs
µs
kbps
µs
µs
RL = 3kâ¦, CL = 50pF; VCC = +5.0V,
TA @ 25°C
RL = 3Kâ¦, CL = 2500pF;
between +/-3V, TA @ +25°C
RL = 3kâ¦, CL = 2500pF
Measured from 1.5V of VIN to 50%
of VOUT; RL = 3kâ¦
Volts
Volts
Volts
kâ¦
VIN = +15V to -15V
Exar Corporation 48720 Kato Road, Fremont CA, 94538 ⢠510-668-7017 ⢠www.exar.com
SP334_100_090909
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