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HIN230 thru HIN241
TM
Data Sheet
May 2000
File Number
3138.7
+5V Powered RS-232 Transmitters/Receivers
The HIN230-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 HIN231 and HIN239) and feature onboard charge pump voltage converters which generate +10V and -10V supplies from the 5V supply. The HIN233 and HIN235 require no external capacitors and are ideally suited for applications where circuit board space is critical. 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, slewrate-limited output, and 300 power-off source impedance. The receivers can handle up to 30V, and have a 3k to 7k 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 - HIN231 and HIN239) * High Data Rate. . . . . . . . . . . . . . . . . . . . . . . . . . . 120kbps * HIN233 and HIN235 Require No External Capacitors * 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 - 300 Power-Off Source Impedance - Output Current Limiting - TTL/CMOS Compatible - 30V/s Maximum Slew Rate * Multiple Receivers - 30V Input Voltage Range - 3k to 7k 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 HIN230 HIN231 HIN232 HIN233 HIN234 HIN235 HIN236 HIN237 HIN238 HIN239 HIN240 HIN241 POWER SUPPLY VOLTAGE +5V +5V and +7.5V to 13.2V +5V +5V +5V +5V +5V +5V +5V +5V and +7.5V to 13.2V +5V +5V NUMBER OF RS-232 DRIVERS 5 2 2 2 4 5 4 5 4 3 5 4 NUMBER OF RS-232 RECEIVERS 0 2 2 2 0 5 3 3 4 5 5 5 EXTERNAL COMPONENTS 4 Capacitors 2 Capacitors 4 Capacitors None 4 Capacitors None 4 Capacitors 4 Capacitors 4 Capacitors 2 Capacitors 4 Capacitors 4 Capacitors LOW POWER SHUTDOWN/TTL THREE-STATE Yes/No No/No No/No No/No No/No Yes/Yes Yes/Yes No/No No/No No/Yes Yes/Yes Yes/Yes NUMBER OF LEADS 20 16 16 20 16 24 24 24 24 24 44 28
3-1
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 Corporation. | Copyright (c) Intersil Corporation 2000
HIN230 thru HIN241 Ordering Information
PART NUMBER HIN230CB HIN230IB HIN231CB HIN231CP HIN231IB HIN231IP HIN232CP HIN232CB HIN232IP HIN232IB HIN233CP HIN234CB HIN234IB HIN235CP HIN236CP HIN236CB HIN236IP HIN236IB TEMP. RANGE (oC) 0 to 70 -40 to 85 0 to 70 0 to 70 -40 to 85 -40 to 85 0 to 70 0 to 70 -40 to 85 -40 to 85 0 to 70 0 to 70 -40 to 85 0 to 70 0 to 70 0 to 70 -40 to 85 -40 to 85 PACKAGE 20 Ld SOIC 20 Ld SOIC 16 Ld SOIC 14 Ld PDIP 16 Ld SOIC 14 Ld PDIP 16 Ld PDIP 16 Ld SOIC 16 Ld PDIP 16 Ld SOIC 20 Ld PDIP 16 Ld SOIC 16 Ld SOIC 24 Ld PDIP 24 Ld PDIP 24 Ld SOIC 24 Ld PDIP 24 Ld SOIC PKG. NO. M20.3 M20.3 M16.3 E14.3 M16.3 E14.3 E16.3 M16.3 E16.3 M16.3 E20.3 M16.3 M16.3 E24.6 E24.3 M24.3 E24.3 M24.3 PART NUMBER HIN237CP HIN237CB HIN237IP HIN237IB HIN238CP HIN238CB HIN238IP HIN238IB HIN239CB HIN239CP HIN239IB HIN240CN HIN240IN HIN241CB HIN241IB HIN241CA HIN241IA TEMP. RANGE (oC) 0 to 70 0 to 70 -40 to 85 -40 to 85 0 to 70 0 to 70 -40 to 85 -40 to 85 0 to 70 0 to 70 -40 to 85 0 to 70 -40 to 85 0 to 70 -40 to 85 0 to 70 -40 to 85 PACKAGE 24 Ld PDIP 24 Ld SOIC 24 Ld PDIP 24 Ld SOIC 24 Ld PDIP 24 Ld SOIC 24 Ld PDIP 24 Ld SOIC 24 Ld SOIC 24 Ld PDIP 24 Ld SOIC 44 Ld MQFP 44 Ld MQFP 28 Ld SOIC 28 Ld SOIC 28 Ld SSOP 28 Ld SSOP PKG. NO. E24.3 M24.3 E24.3 M24.3 E24.3 M24.3 E24.3 M24.3 M24.3 E24.3 M24.3 Q44.10X10 Q44.10X10 M28.3 M28.3 M28.209 M28.209
NOTE: Many of the surface mount devices are available on tape and reel; add -T to suffix.
Pin Descriptions
PIN VCC V+ VGND C1+ C1C2+ C2TIN TOUT RIN ROUT EN SHUTDOWN NC Power Supply Input 5V 10%. Internally generated positive supply (+10V nominal), HIN231 and HIN239 require +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 400k pull-up resistor to VCC 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 5k 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 outputs are placed in a high impedance state. Shutdown Input. With SHUTDOWN = 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
3-2
HIN230 thru HIN241 Pinouts
HIN230 (SOIC) TOP VIEW
T3OUT T1OUT T2OUT T2IN T1IN GND VCC C1+ V+ 1 2 3 4 5 6 7 8 9 20 T4OUT 19 T5IN 18 NC 17 SHUTDOWN 16 T5OUT 15 T4IN 14 T3IN 13 V12 C211 C2+ 1 2 3 4 5 6 7 8
HIN231 (SOIC) TOP VIEW
16 V+ 15 VCC 14 GND
C+ CVT2OUT R2IN R2OUT T2IN NC
(14) (13) (12)
13 T1OUT (11) 12 R1IN (10)
11 R1OUT (9) 10 T1IN 9 NC (8)
C1- 10
NOTE: Pin numbers in parentheses are for PDIP Package.
+5V
+5V
+7.5V TO +13.2V
7 8 1F + 10 C1+ C1VCC +5V TO 10V VOLTAGE DOUBLER +10V TO -10V VOLTAGE INVERTER T1 V+ 9 +
15 1F 1 1F V- 13 + 2 1F T1OUT T1IN 10 +5V 400k T1 13 + 2 VCC V+ 16
1F
11 C2+ + 12 C25
C+ C-
+12V TO -12V VOLTAGE INVERTER
V- 3 + 1F
T1IN
+5V 400k
T1OUT
T2IN
4
+5V 400k
T2 3 T2OUT T2IN
7 11
+5V 400k
T2 4 12 R1IN R1 5k T2OUT
T3IN
14
+5V 400k
T3
1
R1OUT T3OUT
T4IN
15
+5V 400k
T4 20 T5 16 17 6 T5OUT SHUTDOWN 14 T4OUT R2OUT 6 R2 5k 5 R2IN
T5IN
19
+5V 400k
NOTE: SOIC pin numbers shown.
3-3
HIN230 thru HIN241 Pinouts
(Continued) HIN232 (PDIP, SOIC) TOP VIEW
C1+ 1 V+ 2 C1- 3 C2+ 4 C2- 5 V6 16 VCC 15 GND 14 T1OUT 13 R1IN 12 R1OUT 11 T1IN 10 T2IN 9 R2OUT T2IN T1IN R1OUT R1IN T1OUT GND VCC (V+) C1+ GND
HIN233 (PDIP, SOIC) TOP VIEW
1 2 3 4 5 6 7 8 9 20 R2OUT 19 R2IN 18 T2OUT 17 V16 C215 C2+ 14 V+ (C1-) 13 C1- (C1+) 12 V- (C2+) 11 C2+ (C2-)
T2OUT 7 R2IN 8
(V-) C2- 10
NOTE: Pin names in parentheses are for SOIC Package.
+5V + 1F 16 6 1 1F + 3 4 1F + 5 VCC C1+ C1C2+ C2+5V TO 10V VOLTAGE DOUBLER V+ 2 + 1F T1IN 2 +5V 1 +10V TO -10V VOLTAGE INVERTER V- 6 + T1 14 1F R1OUT R1 T1OUT R2OUT T2 7 13 R1IN R1 9 R2 5k 5k INTERNAL -10V SUPPLY INTERNAL +10V SUPPLY T2OUT 20 8 (13) NO 13 (14) CONNECT 12 (10) 17 14 (8) C1+ C1VVV+ GND 6 GND 9 R2 5k C2+ C2+ C2C210 (11) 5k 19 R2IN 11 (12) 15 16 T2IN 3 400k +5V 400k VCC T1 5 T1OUT T2 18 T2OUT 4 R1IN + 0.1F +5V
T1IN
11
+5V 400k
T2IN
10 12
+5V 400k
R1OUT
R2OUT
8
R2IN
15
NOTE: Pin numbers in parentheses are for SOIC Package.
3-4
HIN230 thru HIN241 Pinouts
(Continued) HIN234 (SOIC) TOP VIEW
1 2 3 4 5 6 7 8 16 T3OUT 15 T4OUT 14 T4IN 13 T3IN 12 V11 C210 C2+ 9 C1T4OUT 1 T3OUT 2 T1OUT 3 T2OUT 4 R2IN 5 R2OUT 6 T2IN 7 T1IN 8 R1OUT 9 R1IN 10 GND 11 VCC 12 +5V +5V 6 7 1F + 9 C1+ C1VCC +5V TO 10V VOLTAGE DOUBLER +10V TO -10V VOLTAGE INVERTER T1 V+ 8 + 12 1F +5V T1IN V- 12 + 1 1F T1OUT 8 400k +5V 400k +5V 400k +5V 400k +5V 400k VCC T1 3 + 0.1F
HIN235 (PDIP) TOP VIEW
24 R3IN 23 R3OUT 22 T5IN 21 SHUTDOWN 20 EN 19 T5OUT 18 R4IN 17 R4OUT 16 T4IN 15 T3IN 14 R5OUT 13 R5IN
T1OUT T2OUT T2IN T1IN GND VCC C1+ V+
T1OUT
1F
10 C2+ + 11 C24
T2IN T3IN T4IN
7
T2 4 T3 T4 1 T5 19 10 R1 5k 5 R2 5k 24 R3IN R3 5k 18 R4 5k 13 R5IN R5 GND 11 5k 21 SHUTDOWN R2IN T5OUT R1IN T4OUT T2OUT T3OUT
T1IN
+5V 400k
15 16
2
T2IN
3
+5V 400k
T2 2 T2OUT
T3IN
+5V 400k 13 +5V 400k
T3
T5IN 16 T3OUT R1OUT
22 9
T4 15 T4OUT R2OUT
T4IN
14
6
5
23 R3OUT
17 R4OUT
R4IN
14 R5OUT 20 EN
3-5
HIN230 thru HIN241 Pinouts
(Continued) HIN236 (PDIP, SOIC) TOP VIEW
T3OUT T1OUT T2OUT R1IN R1OUT T2IN T1IN GND VCC 1 2 3 4 5 6 7 8 9 24 T4OUT 23 R2IN 22 R2OUT 21 SHUTDOWN 20 EN 19 T4IN 18 T3IN 17 R3OUT 16 R3IN 15 V14 C213 C2+ T3OUT T1OUT T2OUT R1IN R1OUT T2IN T1IN GND VCC
HIN237 (PDIP, SOIC) TOP VIEW
1 2 3 4 5 6 7 8 9 24 T4OUT 23 R2IN 22 R2OUT 21 T5IN 20 T5OUT 19 T4IN 18 T3IN 17 R3OUT 16 R3IN 15 V14 C213 C2+
C1+ 10 V+ 11 C1- 12
C1+ 10 V+ 11 C1- 12
+5V 9 1F 10 C1+ + 12 C113 C2+ + 14 C27 VCC +5V TO 10V VOLTAGE DOUBLER +10V TO -10V VOLTAGE INVERTER T1 V+ 11 + 1F 1F 10 C1+ + 12 C113 C2+ + 14 C2-
+5V 9 VCC +5V TO 10V VOLTAGE DOUBLER +10V TO -10V VOLTAGE INVERTER T1 V+ 11 + 1F
1F
V- 15 + 2 1F T1OUT
1F
V- 15 1F + 2 T1OUT
T1IN
+5V 400k +5V 400k +5V 400k +5V 400k
T1IN
+5V 400k 7 +5V 400k +5V 400k
T2 3 T3 T2OUT
T2 3 T3 T2OUT
T2IN
6
T2IN
6
T3IN T4IN R1OUT
18
1
T3OUT T4OUT R1IN
T3IN T4IN T5IN R1OUT
18
1
T3OUT T4OUT T5OUT R1IN
T4 24 4 R1 5k 23 R2IN R2 5k
19 5
+5V 400k 19 +5V 400k 21 5
T4 24 T5 20 4 R1 5k 23 R2IN R2 5k 16 R3IN R3 5k
22 R2OUT
22 R2OUT 16 R3IN
17 R3OUT 20 EN 8 R3 5k
21 SHUTDOWN R3OUT
17
8
3-6
HIN230 thru HIN241 Pinouts
(Continued) HIN238 (PDIP, SOIC) TOP VIEW HIN239 (SOIC) TOP VIEW
T2OUT T1OUT R2IN R2OUT T1IN R1OUT R1IN GND VCC
1 2 3 4 5 6 7 8 9
24 T3OUT 23 R3IN 22 R3OUT 21 T4IN 20 T4OUT 19 T3IN 18 T2IN 17 R4OUT 16 R4IN 15 V14 C213 C2+
R1OUT 1 R1IN 2 GND 3 VCC 4 V+ 5 C1+ 6 C1- 7 V- 8 R5IN 9 R5OUT 10 R4OUT 11 R4IN 12
24 T1IN 23 T2IN 22 R2OUT 21 R2IN 20 T2OUT 19 T1OUT 18 R3IN 17 R3OUT 16 T3IN 15 NC (NOTE) 14 EN 13 T3OUT
C1+ 10 V+ 11 C1- 12
NOTE: No Connect
+5V 9 1F 10 C1+ + 12 C113 C2+ + 14 C2VCC +5V TO 10V VOLTAGE DOUBLER +10V TO -10V VOLTAGE INVERTER T1 V+ 11 + 1F 1F + 7 6
+5V 4 C1+ C1VCC +10V TO -10V VOLTAGE INVERTER T1
+7.5V TO +13.2V
V+ V-
5 8 + 19 1F T1OUT
1F
V- 15 + 2 1F T1OUT T2IN 1 T2OUT T3IN 24 T3OUT T4OUT R1IN R2OUT R1OUT T1IN
+5V 400k 24 +5V 400k +5V 400k
T1IN
+5V 400k 5 +5V 400k 18 +5V 400k 19 +5V 400k 21 6
T2 20 T3 T2OUT
23
T2
T2IN
16 1
13 2
T3OUT R1IN
T3
T3IN T4IN R1OUT
T4 20 7 R1 5k 17 3 R2IN R2 5k 11 23 R3IN R3 5k 10 16 R4IN R4 5k R5OUT 14 EN R4OUT R3OUT 22
R1
5k 21 R2IN
R2
5k 18 R3IN
4 R2OUT
R3
5k 12 R4IN
22 R3OUT
R4
5k 9 R5IN
17 R4OUT
R5
5k
8
3
3-7
HIN230 thru HIN241 Pinouts
(Continued) HIN240 (MQFP)
R4OUT NC SHUT DOWN EN R5OUT T5OUT R4IN R5IN T4IN T3IN NC
HIN241 (SOIC, SSOP) TOP VIEW
T3OUT 1 T1OUT 2 28 T4OUT 27 R3IN 26 R3OUT 25 SHUTDOWN 24 EN 23 R4IN 22 R4OUT 21 T4IN 20 T3IN 19 R5OUT 18 R5IN 17 V16 C215 C2+
NC T5IN R3OUT R3IN T4OUT T3OUT T1OUT T2OUT NC R2IN 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
T2OUT 3 NC NC NC VC2C2+ C1V+ C1+ NC NC R2IN 4 R2OUT 5 T2IN 6 T1IN 7 R1OUT 8 R1IN 9 GND 10 VCC 11 C1+ 12 V+ 13 C1- 14
24 10 11 23 12 13 14 15 16 17 18 19 20 21 22
T2IN
T1IN
R2OUT
R1OUT
R1IN
VCC
NC
NC
NC
GND
NC
+5V 19 1F 25 VCC C1+ + +5V TO 10V 27 C1- VOLTAGE DOUBLER 28 C2+ +10V TO -10V + 29 VOLTAGE INVERTER C2+5V T1 400k 15 +5V 400k 14 +5V 400k 37 +5V 400k 38 +5V 400k 2 16 R1 13 R2OUT R2 3 R3OUT R3 39 R4OUT R4 36 R5OUT 42 EN 18 R5 5k 43 SHUTDOWN 5k 35 R5IN EN 5k 40 R4IN R5OUT 24 19 5k 4 R3IN R4OUT 22 5k 10 R2IN R3OUT 26 T2 8 T3 T2OUT T2IN V+ 26 + 1F 1F 12 C1+ + 14 C115 C2+ + 16 C2-
+5V 11 VCC +5V TO 10V VOLTAGE DOUBLER +10V TO -10V VOLTAGE INVERTER T1 V+ 13 + 1F
1F
V-
30 1F 7 T1OUT
1F
V- 17 + 1F 2 T1OUT T2OUT
T1IN T2IN
T1IN
+5V 400k 7 +5V 400k 6 +5V 400k
T2 3 T3
T3IN T4IN T5IN R1OUT
6
T3OUT T4OUT T5OUT R1IN
T3IN
20
1
T3OUT
T4
5
T4IN R1OUT
+5V 400k 21 8
T4
28 9
T4OUT R1IN
T5
41 17
R1 5 R2OUT R2
5k 4 R2IN 5k 27 R3IN
R3
5k 23 R4IN
R4
5k 18 R5IN
R5
5k 25 SHUTDOWN 10
3-8
HIN230 thru HIN241
Absolute Maximum Ratings
VCC to Ground. . . . . . . . . . . . . . . . . . . . . . (GND -0.3V) < VCC < 6V V+ to Ground . . . . . . . . . . . . . . . . . . . . . . . .(VCC -0.3V) < V+ < 12V V- to Ground. . . . . . . . . . . . . . . . . . . . . . . . -12V < V- < (GND +0.3V) Input Voltages TIN . . . . . . . . . . . . . . . . . . . . . . . . . (V- -0.3V) < VIN < (V+ +0.3V) RIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V Output Voltages TOUT . . . . . . . . . . . . . . . . . . . .(V- -0.3V) < VTXOUT < (V+ +0.3V) ROUT . . . . . . . . . . . . . . . . . (GND -0.3V) < VRXOUT < (V+ +0.3V) Short Circuit Duration TOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Continuous ROUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Continuous
Thermal Information
Thermal Resistance (Typical, Note 1) JA (oC/W) 14 Ld PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . 90 16 Ld PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . 90 20 Ld PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . 80 24 Ld PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . 70 16 Ld SOIC (W) Package. . . . . . . . . . . . . . . . . . . . . 100 20 Ld SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . 120 24 Ld SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . 75 28 Ld SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . 70 28 Ld SSOP Package . . . . . . . . . . . . . . . . . . . . . . . 95 44 Ld MQFP Package . . . . . . . . . . . . . . . . . . . . . . . 80 Maximum Junction Temperature (Plastic Package) . . . . . . . .150oC Maximum Storage Temperature Range . . . . . . . . . . -65oC to 150oC Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . .300oC (SOIC, SSOP, MQFP - Lead Tips Only)
Operating Conditions
Temperature Range HIN2XXCX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC to 70oC HIN2XXIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40oC to 85oC
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE: 1. JA is measured with the component mounted on an evaluation PC board in free air.
Electrical Specifications
PARAMETER SUPPLY CURRENTS Power Supply Current, ICC
Test Conditions: VCC = +5V 10%, TA = Operating Temperature Range TEST CONDITIONS MIN TYP MAX UNITS
No Load, TA = 25oC
HIN232-233 HIN230, HIN234-238, HIN240-241 HIN231, HIN239
-
5 7 0.4 1.8 5.0 1
10 15 1 5 15 10
mA mA mA mA mA A
V+ Power Supply Current, ICC No Load, TA = 25oC Shutdown Supply Current, ICC(SD)
No Load, TA = 25oC TA = 25oC
HIN231 HIN239
LOGIC AND TRANSMITTER INPUTS, RECEIVER OUTPUTS Input Logic Low, VlL Input Logic High, VlH TIN , EN, Shutdown TIN EN, Shutdown Transmitter Input Pullup Current, IP TTL/CMOS Receiver Output Voltage Low, VOL TTL/CMOS Receiver Output Voltage High, VOH RECEIVER INPUTS RS-232 Input Voltage Range VIN Receiver Input Impedance RIN Receiver Input Low Threshold, VlN (H-L) Receiver Input High Threshold, VIN (L-H) Receiver Input Hysteresis VHYST TIMING CHARACTERISTICS Baud Rate (1 Transmitter Switching) Output Enable Time, tEN Output Disable Time, tDIS RL = 3k HIN235, 236, 239, 240, 241 HIN235, 236, 239, 240, 241 120 400 250 kbps ns ns VIN = 3V VCC = 5V, TA = 25oC VCC = 5V, TA = 25oC -30 3.0 0.8 0.2 5.0 1.2 1.7 0.5 +30 7.0 2.4 1.0 V k V V V TIN = 0V IOUT = 1.6mA (HIN231-HIN233 IOUT = 3.2mA) IOUT = -1.0mA 2.0 2.4 3.5 15 0.1 4.6 0.8 200 0.4 V V V A V V
3-9
HIN230 thru HIN241
Electrical Specifications
PARAMETER Propagation Delay, tPD Instantaneous Slew Rate SR Transition Region Slew Rate, SRT Test Conditions: VCC = +5V 10%, TA = Operating Temperature Range (Continued) TEST CONDITIONS RS-232 to TTL CL = 10pF, RL = 3k, TA = 25oC (Note 2) RL = 3k, CL = 2500pF Measured from +3V to -3V or -3V to +3V, 1 Transmitter Switching 3 V/s MIN TYP 0.5 MAX 30 UNITS s V/s
TRANSMITTER OUTPUTS Output Voltage Swing, TOUT Output Resistance, ROUT RS-232 Output Short Circuit Current, ISC NOTE: 2. Guaranteed by design. Transmitter Outputs, 3k to Ground VCC = V+ = V- = 0V, VOUT = 2V TOUT shorted to GND 5 300 9 10 10 V mA
3-10
HIN230 thru HIN241
VOLTAGE DOUBLER S1 VCC + GND S3 RC OSCILLATOR C1C1 + S4 C3 VCC GND S7 + C2C2 + S8 C4 V- = -(V+) C1+ S2 V+ = 2VCC S5 VOLTAGE INVERTER C2+ S6 GND
FIGURE 1. CHARGE PUMP
Detailed Description
The HIN230 thru HIN241 family of RS-232 transmitters/receivers are powered by a single +5V power supply (except HIN231 and HIN239), feature low power consumption, and meet all ElA RS-232C and V.28 specifications. The circuit is divided into three sections: The charge pump, transmitter, and receiver.
Charge Pump
An equivalent circuit of the charge pump is illustrated in Figure 1. The charge pump contains two sections: the voltage doubler and the voltage inverter. Each section is driven by a two phase, internally generated clock to generate +10V and 10V. The nominal clock frequency is 16kHz. During phase one of the clock, capacitor C1 is charged to VCC . During phase two, the voltage on C1 is added to VCC , producing a signal across C3 equal to twice VCC . During phase one, C2 is also charged to 2VCC , and then during phase two, it is inverted with respect to ground to produce a signal across C4 equal to -2VCC . The charge pump accepts input voltages up to 5.5V. The output impedance of the voltage doubler section (V+) is approximately 200, and the output impedance of the voltage inverter section (V-) is approximately 450. A typical application uses 1F capacitors for C1-C4, however, the value is not critical. Increasing the values of C1 and C2 will lower the output impedance of the voltage doubler and inverter, increasing the values of the reservoir capacitors, C3 and C4, lowers the ripple on the V+ and V- supplies. During shutdown mode (HIN230, 235, 236, 240 and 241), SHUTDOWN control line set to logic "1", the charge pump is turned off, V+ is pulled down to VCC , V- is pulled up to GND, and the supply current is reduced to less than 10A. The transmitter outputs are disabled and the receiver outputs are placed in the high impedance state.
resistor so any unused input can be left unconnected and its output remains in its low state. The output voltage swing meets the RS-232C specifications of 5V minimum with the worst case conditions of: all transmitters driving 3k minimum load impedance, VCC = 4.5V, and maximum allowable operating temperature. The transmitters have an internally limited output slew rate which is less than 30V/s. The outputs are short circuit protected and can be shorted to ground indefinitely. The powered down output impedance is a minimum of 300 with 2V applied to the outputs and VCC = 0V.
V+ VCC 400k TXIN GND < TXIN < VCC V300 TOUT V- < VTOUT < V+
FIGURE 2. TRANSMITTER
Receivers
The receiver inputs accept up to 30V while presenting the required 3k to 7k input impedance even if the power is off (VCC = 0V). The receivers have a typical input threshold of 1.3V which is within the 3V limits, known as the transition region, of the RS-232 specifications. The receiver output is 0V to VCC . The output will be low whenever the input is greater than 2.4V and high whenever the input is floating or driven between +0.8V and -30V. The receivers feature 0.5V hysteresis to improve noise rejection. The receiver Enable line EN, when set to logic "1", (HIN235, 236, 239, 240, and 241) disables the receiver outputs, placing them in the high impedance mode. The receiver outputs are also placed in the high impedance state when in shutdown mode.
VCC
Transmitters
The transmitters are TTL/CMOS compatible inverters which translate the inputs to RS-232 outputs. The input logic threshold is about 26% of VCC, or 1.3V for VCC = 5V. A logic 1 at the input results in a voltage of between -5V and V- at the output, and a logic 0 results in a voltage between +5V and (V+ 0.6V). Each transmitter input has an internal 400k pullup
RXIN -30V < RXIN < +30V GND 5k ROUT GND < VROUT < VCC
FIGURE 3. RECEIVER
3-11
HIN230 thru HIN241
TIN OR RIN TOUT OR ROUT VOL VOL tPHL tPLH
Average Propagation Delay =
tPHL + tPLH 2
FIGURE 4. PROPAGATION DELAY DEFINITION
Typical Performance Curves
TA = 25oC 12 1F SUPPLY VOLTAGE (|V|) V- SUPPLY VOLTAGE 10 0.47F 8 0.10F 6 4 2 0 3.0 10 8 6 4 2 0 3.5 4.0 4.5 VCC 5.0 5.5 6.0 0 5 10 15 20 |ILOAD| (mA) 25 30 35 V- (VCC = 4.5V) V- (VCC = 5V) V+ (VCC = 5V) V+ (VCC = 4.5V) 12 TRANSMITTER OUTPUTS OPEN CIRCUIT
FIGURE 5. V- SUPPLY VOLTAGE vs VCC , VARYING CAPACITORS
FIGURE 6. V+, V- OUTPUT VOLTAGE vs LOAD (HIN232)
Test Circuits (HIN232)
+4.5V TO +5.5V INPUT 1F C3 1F C1 +
+ 1 C1+ 2 V+ 3 C14 C2+ 5 C2VCC 16 GND 15 T1OUT 14 R1IN 13 R1OUT 12 T1IN 11 T2IN 10 R2OUT 9 3k T1 OUTPUT RS-232 30V INPUT TTL/CMOS OUTPUT TTL/CMOS INPUT TTL/CMOS INPUT TTL/CMOS OUTPUT
1 C1+ 2 V+ 3 C14 C2+ 5 C26 V7 T2OUT 8 R2IN
VCC 16 GND 15 T1OUT 14 R1IN 13 R1OUT 12 T1IN 11 T2IN 10 R2OUT 9
-
1F + C2 1F C4
3k
T2 OUTPUT RS-232 30V INPUT VIN = 2V
FIGURE 7. GENERAL TEST CIRCUIT
-
+
6 V7 T2OUT 8 R2IN
ROUT = VIN/1 T2OUT T1OUT A
FIGURE 8. POWER-OFF SOURCE RESISTANCE CONFIGURATION
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HIN230 thru HIN241 Applications
The HIN2XX may be used for all RS-232 data terminal and communication links. It is particularly useful in applications where 12V power supplies are not available for conventional RS-232 interface circuits. The applications presented represent typical interface configurations. A simple duplex RS-232 port with CTS/RTS handshaking is illustrated in Figure 9. Fixed output signals such as DTR (data terminal ready) and DSRS (data signaling rate select) is generated by driving them through a 5k resistor connected to V+. In applications requiring four RS-232 inputs and outputs (Figure 10), note that each circuit requires two charge pump capacitors (C1 and C2) but can share common reservoir capacitors (C3 and C4). The benefit of sharing common reservoir capacitors is the elimination of two capacitors and the reduction of the charge pump source impedance which effectively increases the output swing of the transmitters.
1 C1 + 1F TD TTL/CMOS INPUTS AND OUTPUTS RTS RD CTS 9 R2 R1 8 15 16 C4 6 2 V- V+ 6 2 16 HIN232 1 C1 + 1F DTR TTL/CMOS INPUTS AND OUTPUTS DSRS DCD R1 9 R2 R1 8 3 11 10 12 T1 T2 4 5 14 7 13 + C2 1F DTR (20) DATA TERMINAL READY DSRS (24) DATA SIGNALING RATE SELECT DCD (8) DATA CARRIER DETECT R1 (22) RING INDICATOR SIGNAL GROUND (7) 3 11 10 12 HIN232 T1 T2 4 5 14 7 13 +5V
+ 1 16 2 3 HIN232 4 6 DTR (20) DATA TERMINAL READY DSRS (24) DATA SIGNALING RATE SELECT RS-232 INPUTS AND OUTPUTS TD (2) TRANSMIT DATA RTS (4) REQUEST TO SEND RD (3) RECEIVE DATA CTS (5) CLEAR TO SEND SIGNAL GROUND (7)
C1 + 1F C2 + 1F TD
+
5 11 T1 T2 14 7 13 R1 8
10 TTL/CMOS RTS INPUTS AND 12 RD OUTPUTS R2 9 CTS 15
FIGURE 9. SIMPLE DUPLEX RS-232 PORT WITH CTS/RTS HANDSHAKING
-
+ C2 1F TD (2) TRANSMIT DATA RTS (4) REQUEST TO SEND RD (3) RECEIVE DATA CTS (5) CLEAR TO SEND
-
+
+
C3
-
+5V RS-232 INPUTS AND OUTPUTS
2F
2F
-
15
FIGURE 10. COMBINING TWO HIN232s FOR 4 PAIRS OF RS-232 INPUTS AND OUTPUTS
3-13
HIN230 thru HIN241 Die Characteristics
DIE DIMENSIONS: 160 mils x 140 mils METALLIZATION: Type: Al Thickness: 10kA 1kA SUBSTRATE POTENTIAL V+ PASSIVATION: Type: Nitride over Silox Nitride Thickness: 8kA Silox Thickness: 7kA TRANSISTOR COUNT: 238 PROCESS: CMOS Metal Gate
Metallization Mask Layout
HIN240
T2OUT T1OUT R2IN T3OUT T4OUT R3IN R3OUT T5IN
SHUTDOWN
R2OUT EN T2IN T5OUT
T1IN R1OUT
R4IN
R1IN
R4OUT T4IN
GND T3IN
R5OUT
VCC
R5IN
C1+
V+
C1-
C2+
C2-
V-
3-14
HIN230 thru HIN241
All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certification.
Intersil semiconductor products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see web site www.intersil.com
Sales Office Headquarters
NORTH AMERICA Intersil Corporation P. O. Box 883, Mail Stop 53-204 Melbourne, FL 32902 TEL: (321) 724-7000 FAX: (321) 724-7240 EUROPE Intersil SA Mercure Center 100, Rue de la Fusee 1130 Brussels, Belgium TEL: (32) 2.724.2111 FAX: (32) 2.724.22.05 ASIA Intersil (Taiwan) Ltd. 7F-6, No. 101 Fu Hsing North Road Taipei, Taiwan Republic of China TEL: (886) 2 2716 9310 FAX: (886) 2 2715 3029
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