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MAX236 데이터시트 PDF




Maxim Integrated에서 제조한 전자 부품 MAX236은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 MAX236 기능
기능 +5V-Powered Multichannel RS-232 Drivers/Receivers
제조업체 Maxim Integrated
로고 Maxim Integrated 로고


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MAX236 데이터시트, 핀배열, 회로
MAX220–MAX249
+5V-Powered, Multichannel
RS-232 Drivers/Receivers
General Description
The MAX220–MAX249 family of line drivers/receivers is
intended for all EIA/TIA-232E and V.28/V.24 communica-
tions interfaces, particularly applications where ±12V is
not available.
The MAX225, MAX233, MAX235, and MAX245/MAX246/
MAX247 use no external components and are
recommended for applications where printed circuit
board space is critical.
The MAX220-MAX249 are offered in 26 different pack-
ages with temperatures from 0 to +70°C up to -55°C to
+125°C. See ordering information table at the end of the
data sheet for all package and temperature options.
Applications
Interface Translation
Multidrop RS-232 Networks
Portable Diagnostics Equipment
AutoShutdown and UCSP are trademarks of Maxim Integrated
Products, Inc.
Benefits and Features
Saves Board Space
Integrated Charge Pump Circuitry
Eliminates the Need for a Bipolar ±12V Supply
Enables Single Supply Operation from +5V Supply
Integrated Capacitors (MAX223, MAX233, MAX235,
MAX245-MAX247)
Saves Power for Reduced Power Requirements
5µW Shutdown Mode
Ordering Information and Selection Table appears at end
of data sheet.
MAX220/MAX232/MAX232A Pin Configuration and Typical Operating Circuit
TOP VIEW
+
C1+ 1
V+ 2
C1- 3
C2+ 4
C2- 5
V- 6
MAX220
MAX232
MAX232A
T2OUT 7
R2IN 8
16 VCC
15 GND
14 T1OUT
13 R1IN
12 R1OUT
11 T1IN
10 T2IN
9 R2OUT
DIP/SO
CAPACITANCE (μF)
DEVICE C1 C2 C3 C4 C5
MAX220 0.047 0.33 0.33 0.33 0.33
MAX232 1.0 1.0 1.0 1.0 1.0
MAX232A 0.1 0.1 0.1 0.1 0.1
+5V INPUT C3
C1
C2
TTL/CMOS
INPUTS
C5
16
1 C1+
3 C1-
4 C2+
5 C2-
VCC
+5V TO +10V
VOLTAGE DOUBLER
+10V TO -10V
VOLTAGE INVERTER
V+ 2 +10V
V- 6 -10V
C4
+5V
400kΩ
11 T1IN
T1OUT 14
+5V
400kΩ
10 T2IN
T2OUT 7
RS-232
OUTPUTS
TTL/CMOS
OUTPUTS
12 R1OUT
9 R2OUT
R1IN 13
5kΩ
R2IN 8
5kΩ
GND
15
RS-232
INPUTS
19-4323; Rev 17; 1/15




MAX236 pdf, 반도체, 판매, 대치품
MAX220–MAX249
+5V-Powered, Multichannel
RS-232 Drivers/Receivers
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.) (Note 3)
PARAMETER
CONDITIONS
MIN TYP
Receiver Propagation Delay RS-232 to
TLL (Normal Operation)
tPHLR, Figure 2
tPLHR, Figure 2
Receiver Propagation Delay RS-232 to
TLL (Shutdown)
Receiver-Output Enable Time
Receiver-Output Disable Time
Transmitter-Output Enable Time
(SHDN Goes High)
tPHLS, Figure 2
tPHLS, Figure 2
tER
tDR
tET
MAX222/MAX232A/MAX233/
MAX242/MAX243
MAX220
MAX222/MAX232A/MAX233/
MAX242/MAX243
MAX220
MAX242
MAX242
MAX242, Figure 3
MAX242, Figure 3
MAX222/MAX242, 0.1μF
caps (includes charge-pump
start-up), Figure 4
0.5
0.6
0.6
0.8
0.5
2.5
125
160
250
Transmitter-Output Disable Time
(SHDN Goes Low)
tDT
MAX222/MAX242,
0.1μF caps, Figure 4
600
Transmitter + to - Propagation Delay
Difference (Normal Operation)
tPHLT - tPLHT
MAX222/MAX232A/MAX233/
MAX242/MAX243
MAX220
300
2000
Receiver + to - Propagation Delay
Difference (Normal Operation)
tPHLR - tPLHR
MAX222/MAX232A/MAX233/
MAX242/MAX243
MAX220
100
225
Note 3: All units are production tested at hot. Specifications over temperature are guaranteed by design.
Note 4: MAX243 R2OUT is guaranteed to be low when R2IN 0V or is unconnected.
MAX
1
3
1
3
10
10
500
500
UNITS
μs
μs
ns
ns
μs
ns
ns
ns
Typical Operating Characteristics
MAX220/MAX222/MAX232A/MAX233A/MAX242/MAX243
OUTPUT VOLTAGE vs. LOAD CURRENT
10
1μF
8
6 EITHER V+ OR V- LOADED
4 VCC = +5V
NO LOAD ON
2 TRANSMITTER OUTPUTS
0 (EXCEPT MAX220, MAX233A)
0.1μF
-2 V- LOADED, NO LOAD ON V+
-4
0.1μF
1μF
-6
-8
-10
0
V+ LOADED, NO LOAD ON V-
5 10 15 20
LOAD CURRENT (mA)
25
AVAILABLE OUTPUT CURRENT
vs. DATA RATE
11
OUTPUT LOAD CURRENT
10 FLOWS FROM V+ TO V-
ALL CAPS
9 1μF
8 VCC = +5.25V
7
ALL CAPS
0.1μF
6
VCC = +4.75V
5
4
0
10 20 30 40 50 60
DATA RATE (kb/s)
MAX222/MAX242
ON-TIME EXITING SHUTDOWN
+10V
1μF CAPS
V+
+5V
0.1μF CAPS
+5V
SHDN
0V
V+
0V
1μF CAPS
V-
-10V
0.1μF CAPS
500μs/div
V-
www.maximintegrated.com
Maxim Integrated | 4

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MAX236 전자부품, 판매, 대치품
MAX220–MAX249
+5V-Powered, Multichannel
RS-232 Drivers/Receivers
Typical Operating Characteristics
MAX223/MAX230–MAX241
TRANSMITTER OUTPUT
VOLTAGE (VOH) vs. VCC
8.5
2 TRANSMITTERS
LOADED
8.0
1 TRANSMITTER
LOADED
7.5
3 TRANS-
MITTERS
LOADED
7.0
6.5
4.5
TA = +25°C
C1–C4 = 1μF
TRANSMITTER
4 TRANSMITTERS LOADS =
LOADED
3kΩ || 2500pF
5.0 5.5
VCC (V)
TRANSMITTER OUTPUT
VOLTAGE (VOL) vs. VCC
-6.0
4 TRANS- TA = +25°C
MITTERS C1–C4 = 1μF
-6.5 LOADED TRANSMITTER
LOADS =
-7.0 3kΩ || 2500pF
-7.5
1 TRANS-
-8.0 MITTER
LOADED
-8.5 2 TRANS-
MITTERS
LOADED
-9.0
4.5
3 TRANS-
MITTERS
LOADED
5.0
VCC (V)
5.5
TRANSMITTER OUTPUT VOLTAGE (VOH)
vs. LOAD CAPACITANCE AT
DIFFERENT DATA RATES
7.4
7.2
7.0
6.8 160kb/s
80kb/s
6.6 20kb/s
6.4 TA = +25°C
VCC = +5V
6.2
3 TRANSMITTERS LOADED
RL = 3kΩ
C1–C4 = 1μF
6.0
0 500 1000 1500
2000
LOAD CAPACITANCE (pF)
2500
TRANSMITTER OUTPUT VOLTAGE (VOL)
vs. LOAD CAPACITANCE AT
DIFFERENT DATA RATES
-6.0
TA = +25°C
-6.2 VCC = +5V
3 TRANSMITTERS LOADED
-6.4 RL = 3kΩ
C1–C4 = 1μF
-6.6
-6.8
160kb/s
80kb/s
-7.0 20kb/s
-7.2
-7.4
-7.6
0
500 1000 1500 2000
LOAD CAPACITANCE (pF)
2500
V+, V- WHEN EXITING SHUTDOWN
(1μF CAPACITORS)
MAX220-13
TRANSMITTER SLEW RATE
vs. LOAD CAPACITANCE
12.0
1 TRANSMITTER LOADED TA = +25°C
11.0 VCC = +5V
LOADED, RL = 3kΩ
10.0 C1–C4 = 1μF
9.0 2 TRANSMITTERS
LOADED
8.0
7.0
6.0
5.0
4.0
0
3 TRANSMITTERS
LOADED
4 TRANSMITTERS
LOADED
500 1000 1500 2000
LOAD CAPACITANCE (pF)
2500
TRANSMITTER OUTPUT VOLTAGE (V+, V-)
vs. LOAD CURRENT
10
8
6 TA = +25°C
4 VCC = +5V
C1–C4 = 1μF
2
0
-2
V+ AND V-
EQUALLY
LOADED
V- LOADED,
NO LOAD
ON V+
V+ LOADED,
NO LOAD
ON V-
-4
-6
-8
-10 ALL TRANSMITTERS UNLOADED
0 5 10 15 20 25 30 35 40 45 50
CURRENT (mA)
V+
www.maximintegrated.com
500ms/div
*SHUTDOWN POLARITY IS REVERSED
FOR NON MAX241 PARTS
O
V-
VSHDN*
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