MAX32_ _EC_ _ ....................................................0°C to +70°C
MAX32_ _EE_ _..................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
Note 1:
V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(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.)
PARAMETER
SYMBOL
CONDITIONS
FORCEON = GND,
FORCEOFF
= V
CC,
all R_IN open
FORCEOFF
= GND, all R_IN = GND
FORCEON =
FORCEOFF
= V
CC
,
no load
T_IN,
EN,
FORCEON,
FORCEOFF
T_IN,
EN,
FORCEON,
FORCEOFF
V
CC
= 3.3V
V
CC
= 5.0V
2.0
2.4
0.5
T_IN,
EN,
FORCEON,
FORCEOFF
R_OUT receivers disabled
I
OUT
= 1.6mA
I
OUT
= -1.0mA
Positive threshold
Negative threshold
-2.7
-0.3
0.3
0.4
V
CC
- 0.6
V
CC
- 0.6
V
CC
- 0.1
2.7
±0.01
±0.05
±1
±10
0.4
MIN
TYP
MAX
UNITS
DC CHARACTERISTICS
(V
CC
= 3.3V or 5.0V, T
A
= +25°C)
Supply Current, AutoShutdown
Supply Current, Shutdown
Supply Current,
AutoShutdown Disabled
LOGIC INPUTS
Input Logic Threshold Low
Input Logic Threshold High
Transmitter Input Hysteresis
Input Leakage Current
RECEIVER OUTPUTS
Output Leakage Current
Output Voltage Low
Output Voltage High
µA
V
V
0.8
V
V
V
µA
1.0
1.0
0.3
10
10
1
µA
µA
mA
AutoShutdown
(FORCEON = GND,
FORCEOFF
= V
CC
)
Receiver Input Threshold to
INVALID
Output High
Receiver Input Threshold to
INVALID
Output Low
INVALID
Output Voltage Low
INVALID
Output Voltage High
2
Figure 5a
Figure 5a
I
OUT
= 1.6mA
I
OUT
= -1.0mA
V
V
V
V
Maxim Integrated
MAX3221E/MAX3223E/MAX3243E
±15kV ESD-Protected, 1µA, 3.0V to 5.5V, 250kbps,
RS-232 Transceivers with AutoShutdown
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.)
PARAMETER
Receiver Positive or Negative
Threshold to
INVALID
High
Receiver Positive or Negative
Threshold to
INVALID
Low
Receiver or Transmitter Edge to
Transmitters Enabled
RECEIVER INPUTS
Input Voltage Range
Input Voltage Range
Input Threshold Low
Input Threshold High
Input Hysteresis
Input Resistance
TRANSMITTER OUTPUTS
Output Voltage Swing
Output Resistance
Output Short-Circuit Current
Output Leakage Current
MOUSE DRIVEABILITY (MAX3243E)
T1IN = T2IN = GND, T3IN = V
CC
,
T3OUT loaded with 3kΩ to GND,
T1OUT and T2OUT loaded with
2.5mA each
IEC 1000-4-2 Air-Gap Discharge
R_IN, T_OUT
IEC 1000-4-2 Contact Discharge
Human Body Model
V
OUT
= ±12V, V
CC
= 0 or 3V to
5.5V, transmitters disabled
All transmitter outputs loaded with
3kΩ to ground
V
CC
= V+ = V- = 0, T
OUT
= ±2V
±5
300
±5.4
10M
±60
±25
V
Ω
mA
µA
3
T
A
= +25°C
T
A
= +25°C
V
CC
= 3.3V
V
CC
= 5.0V
V
CC
= 3.3V
V
CC
= 5.0V
SYMBOL
t
INVH
t
INVL
t
WU
CONDITIONS
V
CC
= 5V, Figure 5b
V
CC
= 5V, Figure 5b
V
CC
= 5V, Figure 5b
-25
-25
0.6
0.8
1.2
1.5
1.5
1.8
0.5
5
7
2.4
2.4
MIN
TYP
1
30
100
25
25
MAX
UNITS
µs
µs
µs
V
V
V
V
V
kΩ
Transmitter Output Voltage
±5.0
V
ESD PROTECTION
±15
±8
±15
kV
kV
Maxim Integrated
3
MAX3221E/MAX3223E/MAX3243E
±15kV ESD-Protected, 1µA, 3.0V to 5.5V, 250kbps,
RS-232 Transceivers with AutoShutdown
TIMING CHARACTERISTICS—MAX3221E/MAX3223E/MAX3243E
(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.)
PARAMETER
Maximum Data Rate
Receiver Propagation Delay
Receiver Output Enable Time
Receiver Output Disable Time
Transmitter Skew
Receiver Skew
⏐
t
PHL
- t
PLH
⏐
⏐
t
PHL
- t
PLH
⏐
t
PHL
t
PLH
SYMBOL
CONDITIONS
R
L
= 3kΩ, C
L
= 1000pF,
one transmitter switching
C
L
= 150pF
Normal operation
Normal operation
(Note 3)
V
CC
= 3.3V,
R
L
= 3kΩ to 7kΩ,
T
A
= +25°C,
measured from +3V
to -3V or
-3V to +3V, one
transmitter switching
MIN
250
0.15
0.15
200
200
100
50
TYP
MAX
UNITS
kbps
µs
ns
ns
ns
ns
Transition-Region Slew Rate
C
L
= 150pF to
1000pF
6
30
V/µs
Note 2:
C1–C4 = 0.1µF, tested at 3.3V ±10%. C1 = 0.047µF, C2–C4 = 0.33µF, tested at 5.0V ±10%.
Note 3:
Transmitter skew is measured at the transmitter zero cross points.
Typical Operating Characteristics
(V
CC
= +3.3V, 250kbps data rate, 0.1µF capacitors, all transmitters loaded with 3kΩ and C
L
, T
A
= +25°C, unless otherwise noted.)
MAX3221E/MAX3223E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
6
5
4
3
2
1
0
-1
-2
-3
-4
-5
-6
0
MAX3221E-01
MAX3221E/MAX3223E
SLEW RATE vs. LOAD CAPACITANCE
14
12
SLEW RATE (V/µs)
MAX3221-TOC2
16
TRANSMITTER OUTPUT VOLTAGE (V)
V
OUT+
T1 TRANSMITTING AT 250kbps
T2 (MAX3223E) TRANSMITTING AT 15.6kbps
10
8
6
4
+SLEW
-SLEW
V
OUT-
1000
2000
3000
4000
5000
2
FOR DATA RATES UP TO 250kbps
0
0
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
4
Maxim Integrated
MAX3221E/MAX3223E/MAX3243E
±15kV ESD-Protected, 1µA, 3.0V to 5.5V, 250kbps,
RS-232 Transceivers with AutoShutdown
Typical Operating Characteristics (continued)
(V
CC
= +3.3V, 250kbps data rate, 0.1µF capacitors, all transmitters loaded with 3kΩ and C
当地时间4月25日，欧盟委员会宣布了一系列措施，增加公共和私人投资人工智能( AI )，以让 AI 服务于欧洲人，为社会经济变化做好准备，并提升欧洲在这一领域的竞争力。下面就随网络通信小编一起来了解一下相关内容吧。 当天欧盟委员会副主席Andrus Ansip援引一份数据指出，2016年欧洲企业对 AI 投资金额为40亿美元，而同时期亚洲、美国分别为120亿美元和230亿美元。在A...[详细]
TI技术论坛
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
