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MAX232AC 数据表(PDF) 3 Page - Maxim Integrated Products

部件名 MAX232AC
功能描述  5V-Powered, Multichannel RS-232 Drivers/Receivers
Download  36 Pages
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制造商  MAXIM [Maxim Integrated Products]
网页  https://www.maximintegrated.com/en.html
标志 MAXIM - Maxim Integrated Products

MAX232AC 数据表(HTML) 3 Page - Maxim Integrated Products

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+5V-Powered, Multichannel RS-232
Drivers/Receivers
_______________________________________________________________________________________
3
Note 4: MAX243 R2OUT is guaranteed to be low when R2IN is
≥ 0V or is floating.
ELECTRICAL CHARACTERISTICS—MAX220/222/232A/233A/242/243 (continued)
(VCC = +5V ±10%, C1–C4 = 0.1µF‚ MAX220, C1 = 0.047µF, C2–C4 = 0.33µF, TA = TMIN to TMAX‚ unless otherwise noted.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
All except MAX220/MAX243, VCC = 5V, no
hysteresis in SHDN
0.2
0.5
1.0
MAX220
0.3
RS-232 Input Hysteresis
MAX243
1
V
35
7
RS-232 Input Resistance
TA = +25°C (MAX220)
35
7
K
IOUT = 3.2mA
0.2
0.4
TTL/CMOS Output Voltage Low
IOUT = 1.6mA (MAX220)
0.4
V
TTL/CMOS Output Voltage High
IOUT = -1.0mA
3.5
VCC - 0.2
V
Sourcing VOUT = GND
-2
-10
TTL/CMOS Output Short-Circuit Current
Shrinking VOUT = VCC
10
30
mA
TTL/CMOS Output Leakage Current
SHDN = VCC or EN = VCC (SHDN = 0V for
MAX222), 0V
≤ VOUT ≤ VCC
±0.05
±10
µA
EN Input Threshold Low
MAX242
1.4
0.8
V
EN Input Threshold High
MAX242
2.0
1.4
V
Operating Supply Voltage
4.5
5.5
V
MAX220
0.5
2
No load
MAX222/MAX232A/MAX233A/
MAX242/MAX243
410
MAX220
12
VCC Supply Current (SHDN = VCC),
figures 5, 6, 11, 19
3k
Ω load both
inputs
MAX222/MAX232A/MAX233A/
MAX242/MAX243
15
µA
TA = +25°C
0.1
10
TA = 0°C to +70°C
2
50
TA = -40°C to +85°C
2
50
Shutdown Supply Current
MAX222/
MAX242
TA = -55°C to +125°C
35
100
µA
SHDN Input Leakage Current
MAX222/MAX242
±1
µA
SHDN Threshold Low
MAX222/MAX242
1.4
0.8
V
SHDN Threshold High
MAX222/MAX242
2.0
1.4
V
MAX222/MAX232A/MAX233/
MAX242/MAX243
612
30
Transition Slew Rate
CL = 50pF to
2500pF, RL = 3k
to 7k
Ω, VCC = 5V,
TA = +25°C,
measured from
+3V to -3V or -3V
MAX220
1.5
3
30.0
V/µs
MAX222/MAX232A/MAX233/
MAX242/MAX243
1.3
3.5
tPHLT
MAX220
4
10
MAX222/MAX232A/MAX233/
MAX242/MAX243
1.5
3.5
Transmitter Propagation Delay TLL to
RS-232 (Normal Operation), Figure 1
tPLHT
MAX220
5
10
µs


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