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MAX3237ECDB 产品手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
接口芯片
封装:
SSOP-28
描述:
RS-232 线路收发器，多通道，Texas Instruments### RS-232 线路驱动器和接收器
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MAX3237ECDB数据手册
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MAX3222/MAX3232/MAX3237/MAX3241
3.0V to 5.5V, Low-Power, up to 1Mbps, True RS-232
Transceivers Using Four 0.1µF External Capacitors
_______________________________________________________________________________________ 3
TIMING CHARACTERISTICS—MAX3222/MAX3232/MAX3241
(V
CC
= +3.0V to +5.5V, C1–C4 = 0.1µF (Note 2), T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +3.0V to +5.5V, C1–C4 = 0.1µF (Note 2), T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
T1IN = T2IN = GND, T3IN = V
CC
,
T3OUT loaded with 3kΩ to GND,
T1OUT and T2OUT loaded with 2.5mA each
CONDITIONS
V±5.0Transmitter Output Voltage
V0.3Input Hysteresis
UNITS
MIN TYP MAX
PARAMETER
All transmitter outputs loaded with 3kΩ to ground V±5.0 ±5.4Output Voltage Swing
mA±35 ±60Output Short-Circuit Current
V
CC
= V+ = V- = 0V, T
OUT
= ±2V Ω300 10MOutput Resistance
V
OUT
= ±12V, V
CC
= 0V or 3V to 5.5V, transmitters
disabled
µA±25Output Leakage Current
t
PHL
R
L
= 3kΩ, C
L
= 1000pF, one transmitter switching
t
PLH
| t
PHL
- t
PLH
|
| t
PHL
- t
PLH
|
Normal operation
Normal operation
CONDITIONS
0.3
µs
0.3
Receiver Propagation Delay
kbps120 235Maximum Data Rate
ns300Receiver Skew
ns300Transmitter Skew
ns200Receiver Output Disable Time
ns200Receiver Output Enable Time
UNITS
MIN TYP MAX
PARAMETER
630
V
CC
= 3.3V, R
L
= 3Ω to 7kΩ,
+3V to -3V or -3V to +3V,
T
A
= +25°C
V/µs
430
Transition-Region Slew Rate
R_IN to R_OUT, C
L
= 150pF
C
L
= 150pF to
1000pF
C
L
= 150pF to
2500pF
T
A
= +25°C kΩ357Input Resistance
MOUSE DRIVEABILITY (MAX3241)
TRANSMITTER OUTPUTS
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