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參數(shù)資料
| 型號： | MAX221 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Quadruple Bus Buffer Gates With 3-State Outputs 14-TSSOP -40 to 85 |
| 中文描述： | +5V、1µA、單路RS-232收發(fā)器，帶有AutoShutdown |
| 文件頁數(shù)： | 3/8頁 |
| 文件大?。?/td> | 110K |
| 代理商： | MAX221 |
M
+5V, 1μA, Single RS-232 Transceiver
with AutoShutdown
_______________________________________________________________________________________
3
TIMING CHARACTERISTICS
(V
CC
= +5V ±10%, C1–C4 = 0.1μF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
SYMBOL
PARAMETER
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +5V ±10%, C1–C4 = 0.1μF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
CONDITIONS
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
V
CC
= V+ = V- = 0, V
OUT
= ±2V
Driver loaded with 3k
to ground
T
A
= +25°C, V
CC
= 5V
V
CC
= 5V, no hysteresis in shutdown
T
A
= +25°C, V
CC
= 5V
T
A
= +25°C, V
CC
= 5V
mA
±10
±60
Output Short-Circuit Current
300
Output Resistance
V
±5
±9
Output Voltage Swing
k
3
5
7
Input Resistance
TRANSMITTER OUTPUT
V
0.5
Input Hysteresis
V
1.7
2.4
Input Threshold High
V
0.8
1.2
Input Threshold Low
V
-25
25
Input Voltage Range
R
L
= 3k
to 7k
, C
L
= 50pF to 1000pF,
V
CC
= 4.5V
C
L
= 150pF
CONDITIONS
kbps
250
Maximum Data Rate
UNITS
MIN
TYP
MAX
T
A
= +25°C, V
CC
= 5V, R
L
= 3k
to 7k
,
C
L
= 500pF to 1000pF, measured from
-3V to +3V or +3V to -3V
(Note 1)
Normal operation
Normal operation
V/μs
3
6
30
Transition-Region Slew Rate
ns
50
|
t
PHL
- t
PLH
|
Receiver Skew
ns
200
|
t
PHL
- t
PLH
|
Transmitter Skew
ns
200
Receiver Output Disable Time
ns
300
Receiver Output Enable Time
μs
0.15
t
PHL,
t
PLH
Receiver Propagation Delay
Note 1:
Transmitter skew is measured at the transmitter zero crosspoints.
RECEIVER INPUT
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