3V to 5.5V, up to 250kbps True RS-232 Transceiver
with 4碌A(chǔ) AutoShutdown Plus and Power-On Reset
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 3V to 5.5V, C1鈥揅4 = 0.1碌F (tested at 3.3V 鹵10%), C1 = 0.047碌F, C2鈥揅4 = 0.33碌F (tested at 5V 鹵10%), T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25擄C.)
PARAMETER
INVALID
Output Voltage High
Receiver Positive or Negative
Threshold to
INVALID
High
Receiver Positive or Negative
Threshold to
INVALID
Low
Receiver or Transmitter Edge
to Transmitters Enabled
Receiver or Transmitter Edge
to Shutdown
TRANSMITTER OUTPUTS
Output Voltage Swing
Output Resistance
Output Short-Circuit Current
Output Leakage Current
RESET
OUTPUT
RESET
Operating Voltage
Range
MAX3320_C
MAX3320_E
MAX3320A
RESET
Threshold
MAX3320B
MAX3320L
MAX3320T
I
SINK
= 1.2mA, V
CC
= reset threshold, MAX3320B/T
RESET
Output Voltage
I
SINK
= 3.2mA, V
CC
= reset threshold, MAX3320A/L
I
SINK
= 50碌A(chǔ), V
CC
> 1V, MAX3320_C
I
SINK
= 100碌A(chǔ), V
CC
> 1.2V, MAX3320_E
1.0
1.2
4.00
2.70
4.50
3.00
4.25
2.85
4.63
3.08
5.5
5.5
4.50
3.00
4.75
3.15
0.3
0.4
0.3
0.4
V
V
V
All transmitter outputs loaded with 3k鈩?to ground
V
CC
= V+ = V- = GND, V
T_OUT
= 鹵2V
T_OUT = GND, T_IN = V
CC
or GND
V
T_OUT
= 鹵12V, V
CC
= 0 to 5.5V, transmitters disabled
鹵5.0
300
鹵5.4
10M
鹵35
鹵60
鹵25
V
鈩?/div>
mA
碌A(chǔ)
I
OUT
= -1mA
Figure 3
Figure 3
CONDITIONS
MIN
V
CC
- 0.6
0.1
90
TYP
MAX
UNITS
V
碌s
碌s
MAX3320A/B/L/T
AUTOSHUTDOWN PLUS (FORCEON = GND,
FORCEOFF
= V
CC
)
Figure 5
Figure 3
15
25
30
60
碌s
sec
_______________________________________________________________________________________
3
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