GD75232 Datasheet, PDF (8/12 Pages) Texas Instruments – MULTIPLE RS-232 DRIVERS AND RECEIVERS

GD75232
MULTIPLE RS-232 DRIVERS AND RECEIVERS
SLLS206C – MAY 1995 – REVISED JULY 1998
PARAMETER MEASUREMENT INFORMATION
VDD
VCC
VI
VSS
Figure 4. Receiver Test Circuit for I_OS
VDD
VCC
VIT, VI
VSS
VOL
VOH
IOL
– IOH
Figure 5. Receiver Test Circuit for V_IT, V_OH, and V_OL
Pulse
Generator
See Note A
VDD
Input _VCC
RL
VSS
TEST CIRCUIT
Input
50%
CL
(see Note B)
Output
90%
t _THL
t _PHL
50%
10%
50%
50%
10%
VOLTAGE WAVEFORMS
4V
t _PLH
90%
0V
VOH
t _TLH
VOL
NOTES: A. The pulse generator has the following characteristics: tw = 25 µs, PRR = 20 kHz, ZO = 50 Ω, tr = tf < 50 ns.
B. CL includes probe and jig capacitance.
Figure 6. Receiver Propagation and Transition Times
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