®
HIN232, HIN236, HIN237,HIN238,
HIN239, HIN240, HIN241
Data Sheet
August 2002
FN3138.12
+5V Powered RS-232
Transmitters/Receivers
The HIN232-HIN241 family of RS-232 transmitters/receivers
interface circuits meet all ElA RS-232E and V.28 specifications,
and are particularly suited for those applications where
±12V
is
not available. They require a single +5V power supply (except
HIN239) and feature onboard charge pump voltage converters
which generate +10V and -10V supplies from the 5V supply.
The family of devices offer a wide variety of RS-232
transmitter/receiver combinations to accommodate various
applications (see Selection Table).
The drivers feature true TTL/CMOS input compatibility, slew-
rate-limited output, and 300Ω power-off source impedance.
The receivers can handle up to
±30V,
and have a 3kΩ to
7kΩ input impedance. The receivers also feature hysteresis
to greatly improve noise rejection.
Features
• Meets All RS-232E and V.28 Specifications
• Requires Only Single +5V Power Supply
- (+5V and +12V - HIN239)
• High Data Rate. . . . . . . . . . . . . . . . . . . . . . . . . . . 120kbps
• Onboard Voltage Doubler/Inverter
• Low Power Consumption
• Low Power Shutdown Function
• Three-State TTL/CMOS Receiver Outputs
• Multiple Drivers
-
±10V
Output Swing for 5V lnput
- 300Ω Power-Off Source Impedance
- Output Current Limiting
- TTL/CMOS Compatible
- 30V/µs Maximum Slew Rate
• Multiple Receivers
-
±30V
Input Voltage Range
- 3kΩ to 7kΩ Input Impedance
- 0.5V Hysteresis to Improve Noise Rejection
Applications
• Any System Requiring RS-232 Communication Ports
- Computer - Portable, Mainframe, Laptop
- Peripheral - Printers and Terminals
- Instrumentation
- Modems
Selection Table
PART
NUMBER
HIN232
HIN236
HIN237
HIN238
HIN239
HIN240
HIN241
POWER SUPPLY
VOLTAGE
+5V
+5V
+5V
+5V
+5V and +7.5V to 13.2V
+5V
+5V
NUMBER OF
RS-232
DRIVERS
2
4
5
4
3
5
4
NUMBER OF
RS-232
RECEIVERS
2
3
3
4
5
5
5
EXTERNAL
COMPONENTS
4 Capacitors
4 Capacitors
4 Capacitors
4 Capacitors
2 Capacitors
4 Capacitors
4 Capacitors
LOW POWER
SHUTDOWN/TTL
THREE-STATE
NO/NO
YES/YES
NO/NO
NO/NO
NO/YES
YES/YES
YES/YES
NUMBER OF
LEADS
16
24
24
24
24
44
28
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
|
Intersil (and design) is a trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2002. All Rights Reserved
HIN232, HIN236, HIN237, HIN238, HIN239, HIN240, HIN241
Ordering Information
PART
NUMBER
HIN232CB
HIN232CB-T
HIN232CP
HIN232IB
HIN232IP
HIN236CB
HIN236IB
HIN237CB
HIN237CB-T
HIN238CB
TEMP.
RANGE (
o
C)
0 to 70
0 to 70
0 to 70
-40 to 85
-40 to 85
0 to 70
-40 to 85
0 to 70
0 to 70
0 to 70
PACKAGE
16 Ld SOIC
Tape and Reel
16 Ld PDIP
16 Ld SOIC
16 Ld PDIP
24 Ld SOIC
24 Ld SOIC
24 Ld SOIC
Tape and Reel
24 Ld SOIC
M24.3
E16.3
M16.3
E16.3
M24.3
M24.3
M24.3
PKG. NO.
M16.3
Ordering Information
PART
NUMBER
HIN238CB-T
HIN238CP
HIN238IB
HIN239CB
HIN239CB-T
HIN239CP
HIN240CN
HIN241CA
HIN241CB
HIN241IB
TEMP.
RANGE (
o
C)
0 to 70
0 to 70
-40 to 85
0 to 70
0 to 70
0 to 70
0 to 70
0 to 70
0 to 70
-40 to 85
(Continued)
PACKAGE
PKG. NO.
Tape and Reel
24 Ld PDIP
24 Ld SOIC
24 Ld SOIC
Tape and Reel
24 Ld PDIP
44 Ld MQFP
28 Ld SSOP
28 Ld SOIC
28 Ld SOIC
E24.3
Q44.10X10
M28.209
M28.3
M28.3
E24.3
M24.3
M24.3
Pin Descriptions
PIN
V
CC
V+
V-
GND
C1+
C1-
C2+
C2-
T
IN
T
OUT
R
IN
R
OUT
EN
SD
NC
Power Supply Input 5V
±10%.
Internally generated positive supply (+10V nominal), HIN239 requires +7.5V to +13.2V.
Internally generated negative supply (-10V nominal).
Ground lead. Connect to 0V.
External capacitor (+ terminal) is connected to this lead.
External capacitor (- terminal) is connected to this lead.
External capacitor (+ terminal) is connected to this lead.
External capacitor (- terminal) is connected to this lead.
Transmitter Inputs. These leads accept TTL/CMOS levels. An internal 400kΩ pull-up resistor to
V
CC
is connected to each lead.
Transmitter Outputs. These are RS-232 levels (nominally
±10V).
Receiver Inputs. These inputs accept RS-232 input levels. An internal 5kΩ pull-down resistor to GND is connected to each input.
Receiver Outputs. These are TTL/CMOS levels.
Enable input. This is an active low input which enables the receiver outputs. With EN = 5V, the receiver outputs are placed
in a high impedance state.
Shutdown Input. With SD = 5V, the charge pump is disabled, the receiver outputs are in a high impedance state and the
transmitters are shut off.
No Connect. No connections are made to these leads.
FUNCTION
2
HIN232, HIN236, HIN237, HIN238, HIN239, HIN240, HIN241
Pinouts
(Continued)
R4
OUT
R5
OUT
T5
OUT
HIN239 (PDIP, SOIC)
TOP VIEW
NC
SD
HIN240 (MQFP)
R4
IN
R5
IN
T4
IN
T3
IN
NC
EN
R1
OUT
1
R1
IN
2
GND 3
V
CC
4
V+ 5
C1+ 6
C1- 7
V- 8
R5
IN
9
R5
OUT
10
R4
OUT
11
R4
IN
12
24 T1
IN
23 T2
IN
22 R2
OUT
21 R2
IN
20 T2
OUT
19 T1
OUT
18 R3
IN
17 R3
OUT
16 T3
IN
15 NC
14 EN
13 T3
OUT
NC
T5
IN
R3
OUT
R3
IN
T4
OUT
T3
OUT
T1
OUT
T2
OUT
NC
R2
IN
NC
1
44 43 42 41 40 39 38 37 36 35 34
33
2
32
3
4
5
6
7
8
9
31
30
29
28
27
26
25
NC
NC
NC
V-
C2-
C2+
C1-
V+
C1+
NC
NC
24
10
11
23
12 13 14 15 16 17 18 19 20 21 22
R2
OUT
R1
OUT
T2
IN
T1
IN
R1
IN
GND
V
CC
NC
NC
NC
+5V
4
6
1µF
(NOTE)
+
7
C1+
C1-
V
CC
+7.5V TO +13.2V (NOTE)
1µF
V+
5
1µF
T1
OUT
1µF
V- 8
+
19
+10V TO -10V
VOLTAGE INVERTER
T1
T1
IN
+5V
400kΩ
24
+5V
400kΩ
T1
IN
T2
IN
T3
IN
T4
IN
T5
IN
R1
OUT
19
25
V
CC
C1+
+
+5V TO 10V
27
C1- VOLTAGE DOUBLER
28
C2+
+10V TO -10V
+
29
VOLTAGE INVERTER
C2-
+5V
T1
400kΩ
15
14
+5V
400kΩ
+5V
400kΩ
+5V
400kΩ
+5V
400kΩ
T2
+5V
NC
26
+
1µF
30
1µF
V+
V-
7
T1
OUT
T2
OUT
T3
OUT
T4
OUT
T5
OUT
R1
IN
T2
IN
23
T2
20
T2
OUT
8
T3
IN
R1
OUT
+5V
400kΩ
16
1
T3
13
2
37
38
2
16
T3
T4
T5
6
5
41
17
T3
OUT
R1
IN
R1
R2
OUT
22
R2
R3
OUT
17
R3
R4
OUT
11
R4
R5
OUT
EN
10
14
R5
5kΩ
21
5kΩ
18
5kΩ
12
5kΩ
9
5kΩ
R5
IN
R4
IN
R3
IN
R2
IN
R1
R2
OUT
13
R2
R3
OUT
3
R3
R4
OUT
39
R4
R5
OUT
36
42
R5
18
5kΩ
10
5kΩ
4
5kΩ
40
5kΩ
35
5kΩ
43
R5
IN
SD
R4
IN
R3
IN
R2
IN
3
EN
NOTE: For V+ > 11V, use C
1
≤
0.1µF.
5
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