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MAX232 Dane(HTML) 6 Page - Texas Instruments

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Numer części MAX232
Szczegółowy opis  DUAL ELA-232 DRIBERS/RECEIVERS
Pobierz  17 Pages
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Producent  TI1 [Texas Instruments]
Strona internetowa  http://www.ti.com
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MAX232 Datasheet(Arkusz danych) 6 Page - Texas Instruments

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MAX232, MAX232I
DUAL EIA232 DRIVERS/RECEIVERS
SLLS047L − FEBRUARY 1989 − REVISED MARCH 2004
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
T1IN or T2IN
T1OUT or T2OUT
CL = 10 pF
(see Note B)
TEST CIRCUIT
≤10 ns
≤10 ns
Input
Output
tPHL
tPLH
VOL
VOH
0 V
3 V
10%
90%
50%
5
µs
WAVEFORMS
90%
50%
10%
RL
90%
10%
90%
10%
tTLH
tTHL
SR
+
0.8 (V
OH
–V
OL
)
t
TLH
or
0.8 (V
OL
–V
OH
)
t
THL
NOTES: A. The pulse generator has the following characteristics: ZO = 50 Ω, duty cycle ≤ 50%.
B. CL includes probe and jig capacitance.
Pulse
Generator
(see Note A)
EIA-232 Output
Figure 2. Driver Test Circuit and Waveforms for tPHL and tPLH Measurements (5-µs Input)
EIA-232 Output
−3 V
3 V
−3 V
3 V
3 k
10%
1.5 V
90%
WAVEFORMS
20
µs
1.5 V
90%
10%
VOH
VOL
tTLH
tTHL
≤10 ns
≤10 ns
TEST CIRCUIT
CL = 2.5 nF
Pulse
Generator
(see Note A)
Input
Output
SR
+
6V
t
THL
or t
TLH
NOTE A:
The pulse generator has the following characteristics: ZO = 50 Ω, duty cycle ≤ 50%.
Figure 3. Test Circuit and Waveforms for tTHL and tTLH Measurements (20-µs Input)


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