Powered CMOS RS-232 Drivers/Receivers ADM205-ADM211/ADM213 TYPICA

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Powered CMOS RS-232 Drivers/Receivers ADM205-ADM211/ADM213 TYPICA

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FEATURES Capacitors kB/s Data Rate Receivers Active Shutdown (ADM213) On-Board DC-DC Converters Output Swing with Supply Power Power Shutdown Receiver Input Levels Latch-Up FREE Plug-In Upgrade MAX205-211/213 APPLICATIONS Computers Peripherals Modems Printers Instruments
Powered CMOS RS-232 Drivers/Receivers ADM205-ADM211/ADM213
TYPICAL OPERATING CIRCUIT
INPUT +10V VOLTAGE DOUBLER +10V -10V VOLTAGE INVERTER 0.1µF 0.1µF 6.3V 0.1µF 0.1µF
0.1µF
TTL/CMOS OUTPUTS
RS-232 INPUTS**
TTL/CMOS INPUTS*
RS-232 OUTPUTS
ADM211
*INTERNAL 400k PULL-UP RESISTOR EACH TTL/CMOS INPUT **INTERNAL PULL-DOWN RESISTOR EACH RS-232 INPUT
GENERAL DESCRIPTION
ADM2xx family line drivers/receivers intended EIA-232-E V.28 communications interfaces, especially applications where available. ADM205, ADM206, ADM211 ADM213 feature power shutdown mode which reduces power dissipation less than making them ideally suited battery powered equipment. ADM205 does require external components particularly useful applications where printed circuit board space critical. ADM213 active-low shutdown
active-high receiver enable control. receivers ADM213 remain active during shutdown. This feature useful ring indicator monitoring. members ADM2xx family, except ADM209, include internal charge pump voltage converters which allow operation from single supply. These converters convert input power required RS-232 output levels. ADM209 designed operate from supplies. internal charge pump voltage converter generates supply.
Table Selection Table
Part Number ADM205 ADM206 ADM207 ADM208 ADM209 ADM211 ADM213
Power Supply Voltage +13.2
RS-232 Drivers
RS-232 Receivers
External Capacitors None
Power Shutdown (SD) (SD)
Three-State (EN)
Receivers Active Shutdown
REV.
Information furnished Analog Devices believed accurate reliable. However, responsibility assumed Analog Devices use, infringements patents other rights third parties which result from use. license granted implication otherwise under patent patent rights Analog Devices. Analog Devices, Inc., 1994 Technology Way, P.O. 9106, Norwood, 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703
Parameter Output Voltage Swing Power Supply Current Power Supply Current Shutdown Supply Current Input Logic Threshold Low, VINL Input Logic Threshold High, VINH Logic Pull-Up Current RS-232 Input Voltage Range RS-232 Input Threshold RS-232 Input Threshold High RS-232 Input Hysteresis RS-232 Input Resistance TTL/CMOS Output Voltage Low, TTL/CMOS Output Voltage High, TTL/CMOS Output Leakage Current Output Enable Time (TEN) Output Disable Time (TDIS) Propagation Delay Instantaneous Slew Ratel Transition Region Slew Rate Output Resistance RS-232 Output Short Circuit Current
NOTE Sample tested ensure compliance. Specifications subject change without notice.
(VCC (206, 207, 208, 2O9, 211, 213); (ADM205); +13.2 (ADM209); C1-C4 Ceramic. Specifications TMIN TMAX unless otherwise noted.)
0.05 Units Volts V/µs V/µs Test Conditions/Comments Transmitter Outputs Loaded with Ground Load, ADM206, ADM211, ADM213 Load, ADM205, ADM207, ADM208 Load, ADM209 Load, ADM209 Only TIN, TIN,
IOUT IOUT -1.0 VCC, ROUT ADM205, ADM206, ADM209, ADM211 (Figure ADM205, ADM206, ADM209, ADM211 (Figure RS-232 +25°C 2500 Measured from VOUT
ABSOLUTE MAXIMUM RATINGS*
+25°C unless otherwise noted) -0.3 (VCC +0.3 Input Voltages -0.3 (VCC Output Voltages TOUT (V+, (V-, -0.3 ROUT -0.3 (VCC Short Circuit Duration TOUT Continuous Power Dissipation N-24 (Derate 13.5 mW/°C above +70°C) 1000 N-24A (Derate 13.5 mW/°C above +70°C) R-24 SOIC (Derate mW/°C above +70°C) R-28 SOIC (Derate 12.5 mW/°C above +70°C) RS-28 SSOP (Derate mW/°C above +70°C) Q-24 Cerdip (Derate 12.5 mW/°C above +70°C) 1000 D-24 Ceramic (Derate mW/°C above +70°C) 1000
Thermal Impedance, N-24 120°C/W N-24A 110°C/W R-24 SOIC 85°C/W R-28 SOIC 80°C/W RS-28 SSOP 100°C/W Q-14 Cerdip 105°C/W Q-16 Cerdip 100°C/W Q-20 Cerdip 100°C/W Q-24 Cerdip 55°C/W D-24 Ceramic 50°C/W Operating Temperature Range Industrial Version) -40°C +85°C Storage Temperature Range -65°C +150°C Lead Temperature, Soldering +300°C Vapour Phase sec) +215°C Infrared sec) +220°C Rating 2000
*This stress rating only functional operation device these other conditions above those indicated operation sections this specification implied. Exposure absolute maximum rating conditions extended periods time affect reliability.
REV.
ADM205-ADM211/ADM213
ORDERING GUIDE Temperature Range -40°C +85°C Package Option* N-24A Temperature Range Package Option* Model N-24 R-24 RS-24 N-24 R-24 RS-24 Temperature Range Package Option* N-24 R-24 RS-24 R-28 RS-28
Model ADM205 ADM205AN
Model
ADM206 ADM206AN -40°C +85°C ADM206AR -40°C +85°C ADM206ARS -40°C +85°C ADM209 ADM209AN -40°C +85°C ADM209AR -40°C +85°C ADM209ARS -40°C +85°C
ADM207 ADM207AN -40°C +85°C ADM207AR -40°C +85°C ADM207ARS -40°C +85°C ADM211 ADM211AR -40°C +85°C ADM211ARS -40°C +85°C
ADM208 ADM208AN -40°C +85°C ADM208AR -40°C +85°C ADM208ARS -40°C +85°C ADM213 ADM213AR -40°C +85°C ADM213ARS -40°C +85°C
N-24 R-24 RS-24 R-28 RS-28
Plastic DIP; Small Outline (SOIC); Small Shrink Outline Package (SSOP).
INPUT
T4OUT T3OUT T1OUT T2OUT T2IN T1IN
TTL/CMOS INPUTS TTL/CMOS OUTPUTS
0.1µF
T1OUT T2OUT T3OUT T4OUT T5OUT RS-232 INPUTS RS-232 OUTPUTS
ADM205
View (Not Scale)
Figure ADM205 Configuration
ADM205
INTERNAL 400k PULL-UP RESISTOR EACH TTL/CMOS INPUT **INTERNAL PULL-DOWN RESISTOR EACH RS-232 INPUT
Figure ADM205 Typical Operating Circuit
REV.
ADM205-ADM211/ADM213
T3OUT T1OUT T2OUT T2IN T1IN T4OUT T3OUT T1OUT T2OUT T2IN T1IN T4OUT R2IN T5IN T4IN T3IN R3IN
ADM206
View (Not Scale)
T4IN T3IN R3IN
ADM207
View (Not Scale)
Figure ADM206 DIP/SOIC/SSOP Configuration
Figure ADM207 DIP/SOIC/SSOP Configuration
INPUT INPUT 0.1µF 6.3V +10V VOLTAGE DOUBLER +10V -10V VOLTAGE INVERTER 0.1µF 6.3V 0.1µF
0.1µF 6.3V
+10V VOLTAGE DOUBLER +10V -10V VOLTAGE INVERTER
0.1µF 6.3V
0.1µF
0.1µF
0.1µF 0.1µF T1IN T1OUT T2IN
0.1µF T1OUT T2OUT T3OUT T4OUT T5OUT RS-232 INPUTS RS-232 OUTPUTS
T1IN T2IN T3IN T4IN TTL/CMOS OUTPUTS
TTL/CMOS INPUTS
T2OUT T3OUT
RS-232 OUTPUTS
TTL/CMOS INPUTS
T3IN T4IN
T4OUT T5IN RS-232 INPUTS
TTL/CMOS OUTPUTS
ADM206
ADM207
INTERNAL 400k PULL-UP RESISTOR EACH TTL/CMOS INPUT **INTERNAL PULL-DOWN RESISTOR EACH RS-232 INPUT
INTERNAL 400k PULL-UP RESISTOR EACH TTL/CMOS INPUT **INTERNAL PULL-DOWN RESISTOR EACH RS-232 INPUT
Figure ADM206 Typical Operating Circuit
Figure ADM207 Typical Operating Circuit
REV.
ADM205-ADM211/ADM213
T2OUT T1OUT R2OUT T1IN T3OUT CONNECT T1IN R3IN T4IN T3IN T2IN R4IN T2IN R2OUT T2OUT T1OUT R3OUT T3IN T3OUT
ADM208
View (Not Scale)
ADM209
View (Not Scale)
Figure ADM208 DIP/SOIC/SSOP Configuration
Figure ADM209 DIP/SOIC/SSOP Configuration
INPUT
INPUT 0.1µF
0.1µF 6.3V
+10V VOLTAGE DOUBLER +10V -10V VOLTAGE INVERTER
0.1µF 6.3V
0.1µF
0.1µF
+12V -12V VOLTAGE INVERTER
+13.2V INPUT 0.1µF
0.1µF
0.1µF T1IN T1OUT T2OUT T3OUT T4OUT RS-232 INPUTS
T1OUT T2OUT T3OUT RS-232 INPUTS RS-232 OUTPUTS
T1IN T2IN T3IN T4IN
TTL/CMOS INPUTS RS-232 OUTPUTS
T2IN T3IN
TTL/CMOS INPUTS
TTL/CMOS OUTPUTS
TTL/CMOS OUTPUTS
ADM208
ADM209
*INTERNAL 400k PULL-UP RESISTOR EACH TTL/CMOS INPUT **INTERNAL PULL-DOWN RESISTOR EACH RS-232 INPUT
INTERNAL 400k PULL-UP RESISTOR EACH TTL/CMOS INPUT **INTERNAL PULL-DOWN RESISTOR EACH RS-232 INPUT
Figure ADM208 Typical Operating Circuit
Figure ADM209 Typical Operating Circuit
REV.
ADM205-ADM211/ADM213
T3OUT T1OUT T2OUT T2IN T1IN
T3OUT T4OUT
T4OUT
T1OUT T2OUT
R3IN
T2IN
R4IN
T1IN
ADM211
View (Not Scale)
T4IN T3IN
ADM213
View (Not Scale)
T4IN T3IN
R5IN
ACTIVE SHUTDOWN
Figure ADM211 SOIC/SSOP Configuration
INPUT +10V VOLTAGE DOUBLER +10V -10V VOLTAGE INVERTER
Figure ADM213 SOIC/SSOP Configuration
INPUT +10V VOLTAGE DOUBLER +10V -10V VOLTAGE INVERTER
0.1µF
0.1µF 6.3V
0.1µF
0.1µF
0.1µF 6.3V
0.1µF
0.1µF
0.1µF T1OUT
0.1µF
0.1µF T1OUT T2OUT T3OUT T4OUT RS-232 INPUTS RS-232 OUTPUTS
T1IN
T1IN T2IN TTL/CMOS INPUTS T3IN T4IN TTL/CMOS OUTPUTS
T2IN
T2OUT T3OUT T4OUT RS-232 OUTPUTS
TTL/CMOS INPUTS
T3IN T4IN
RS-232 INPUTS
TTL/CMOS OUTPUTS
ADM213
ADM211
*INTERNAL 400k PULL-UP RESISTOR EACH TTL/CMOS INPUT **INTERNAL PULL-DOWN RESISTOR EACH RS-232 INPUT
INTERNAL 400k PULL-UP RESISTOR EACH TTL/CMOS INPUT INTERNAL PULL-DOWN RESISTOR EACH RS-232 INPUT ACTIVE SHUTDOWN
Figure ADM211 Typical Operating Circuit
Figure ADM213 Typical Operating Circuit
REV.
ADM205-ADM211/ADM213
FUNCTION DESCRIPTION
Mnemonic
Function Power Supply Input ADM205). Internally generated positive supply (+10 nominal) parts except ADM209. ADM209 requires external 13.2 supply.
TOUT ROUT EN/EN
Internally generated negative supply (-10 nominal). Ground pin. Must connected (ADM209 only) External capacitor terminal) connected this pin. (ADM209 only) External capacitor terminal) connected this pin. (ADM206, ADM207, ADM208, ADM211, ADM213) External capacitor terminal) connected this pin. (ADM206, ADM207, ADM208, ADM211, ADM213) External capacitor terminal) connected this pin. (ADM206, ADM207, ADM208, ADM211, ADM213) External capacitor terminal) connected this pin. (ADM206, ADM207, ADM208, ADM211, ADM213) External capacitor terminal) connected this pin. Transmitter (Driver) Inputs. These inputs accept TTL/CMOS levels. internal pull-up resistor connected each input. Transmitter (Driver) Outputs. These RS-232 levels (typically Receiver Inputs. These inputs accept RS-232 signal levels. internal pull-down resistor connected each input. Receiver Outputs. These TTL/CMOS levels. Enable Input. Active ADM205, ADM206, ADM209, ADM211. Active high ADM213. This input used enable/disable receiver outputs. With High ADM213), receiver outputs enabled. With =High ADM213), outputs placed high impedance state. This facility useful connecting microprocessor systems. Shutdown Input. Active high ADM205, ADM206, ADM211. Active ADM213. With high ADM205, ADM206, ADM211, charge pump disabled, receiver outputs placed high impedance state driver outputs turned off. With ADM213, charge pump disabled, driver outputs turned receivers except placed high impedance state. shutdown, power consumption reduces Connect. connections required this pin.
Table ADM205, ADM206, ADM211 Truth Table
SD/SD
Status Normal Operation Normal Operation Shutdown
Transmitters T1-T5 Enabled Enabled Disabled
Receivers R1-R5 Enabled Disabled Disabled
Table III. ADM213 Truth Table
Status Shutdown Shutdown Normal Operation Normal Operation
Transmitters T1-T4 Disabled Disabled Enabled Enabled
Receivers R1-R3 Disabled Disabled Disabled Enabled
Receivers Disabled Enabled Disabled Enabled
REV.
ADM205-ADM211/ADM213-Typical Performance Characteristics
VOUT
VOUT Volts
VOUT LOADED)
VOUT (ALL O/Ps LOADED)
IOUT
Figure Charge Pump Current
Figure Transmitter Output Voltage
HIGH
SLEW RATE V/µs
TOUT
1000 1500 CAPACITIVE LOAD 2000 2500
IOUT
Figure Transmitter Slew Rate Load Capacitance
Figure Transmitter Output Voltage Current
(UNLOADED)
IMPEDANCE
(LOADED)
(UNLOADED) (LOADED)
Figure Charge Pump Impedance
REV.
ADM205-ADM211/ADM213
ADM205, ADM206, ADM211, ADM213 particularly useful battery powered systems they feature power shutdown mode which reduces power dissipation less than ADM205 designed applications where space saving important charge pump capacitors molded into package.
ADM209 includes only negative charge pump converter intended applications where positive available.
Figure Charge Pump, Exiting Shutdown
facilitate sharing common line connection microprocessor data ADM205, ADM206, ADM209, ADM211 ADM213 feature enable (EN) function. When disabled, receiver outputs placed high impedance state.
CIRCUIT DESCRIPTION
internal circuitry ADM205-ADM211 ADM213 consists three main sections. These are: charge pump voltage converter RS-232 TTL/CMOS receivers TTL/CMOS RS-232 transmitters
Charge Pump DC-DC Voltage Converter
Figure Transmitter Output Loaded Slew Rate
charge pump voltage converter consists oscillator switching matrix. converter generates supply from input level. This done stages using switched capacitor technique illustrated Figures First, input supply doubled using capacitor charge storage element. level then inverted generate using storage element.
Figure Transmitter Output Unloaded Slew Rate
GENERAL INFORMATION
INTERNAL OSCILLATOR
Figure Charge-Pump Voltage Doubler
FROM VOLTAGE DOUBLER (V+)
ADM205-ADM211 ADM213 family RS-232 drivers/receivers designed solve interface problems meeting EIA-232-E specifications while using single digital supply. EIA-232-E standard requires transmitters which will deliver minimum transmission channel receivers which accept signal levels down ADM205-ADM211 ADM213 meet these requirements integrating step voltage converters level shifting transmitters receivers onto same chip. CMOS technology used keep power dissipation absolute minimum. comprehensive range transmitter/receiver combinations available cover most communications needs. ADM205- ADM211 ADM213 modifications, enhancements improvements AD230-AD241 family derivatives thereof. They essentially plug-in compatible have materially different applications.
INTERNAL OSCILLATOR
Figure Charge-Pump Voltage Inverter
Capacitors used reduce output ripple. Their values critical reduced higher levels ripple acceptable. charge pump capacitors also reduced expense higher output impedance supplies. supplies also used power external circuitry current requirements small.
REV.
ADM205-ADM211/ADM213
Transmitter (Driver) Section Enable Input
drivers convert TTL/CMOS input levels into EIA-232-E output levels. With driving typical EIA-232-E load, output voltage swing Even under worst case conditions drivers guaranteed meet EIA-232-E minimum requirement. input threshold levels both CMOS compatible with switching threshold VCC/4. With nominal switching threshold 1.25 typical. Unused inputs left unconnected, internal pull-up resistor pulls them high forcing outputs into state. required EIA-232-E standard, slew rate limited less than V/µs without need external slew limiting capacitor output impedance power-off state greater than
Receiver Section
ADM205, ADM209, ADM211, ADM213 feature enable input used enable disable receiver outputs. enable input active ADM205, ADM209, ADM211 active-high ADM213. Refer Tables III. When disabled, receiver outputs placed high impedance state. This function allows outputs connected directly microprocessor data bus. also used allow receivers from different devices share common data line. timing diagram enable function shown Figure
3.5V ROUT 0.8V POLARITY REVERSED ADM213 TDIS 0.1V VVOL 0.1V
receivers inverting level shifters which accept EIA-232-E input levels translate them into TTL/ CMOS levels. inputs have internal pull-down resistors ground also protected against overvoltages guaranteed switching thresholds minimum maximum which well within EIA-232-E requirement. level threshold deliberately positive ensures that unconnected input will interpreted level. receivers have Schmitt trigger inputs with hysteresis level This ensures error-free reception both noisy inputs inputs with slow transition times.
Shutdown (SD)
Figure Enable Timing
APPLICATION HINTS Driving Long Cables
ADM205, ADM206, ADM211 ADM213 feature control input which used disable part reduce power consumption less than This very useful battery operated systems. During shutdown charge pump turned off, transmitters disabled receivers except ADM213 into high-impedance disabled state. Receivers ADM213 remain enabled during shutdown. This feature allows monitoring external activity such ring indicator monitoring while device power shutdown mode. shutdown control input active high parts except ADM213 where active low. Refer Tables III.
accordance with EIA-232-E standard, long cables permissible provided that total load capacitance does exceed 2500 longer cables which exceed this, then possible trade baud rate cable length. Large load capacitances cause reduction slew rate, hence maximum transmission baud rate decreased. ADM205-ADM211 ADM213 designed that slew rate reduction with increasing load capacitance minimized. receivers, important that high level noise immunity inbuilt that slow rise fall times cause multiple output transitions signal passes slowly through transition region. ADM205-ADM211 ADM213 have hysteresis guard against this. This ensures that, even noisy environments, error-free reception achieved.
High Baud Rate Operation
ADM205-ADM211 ADM213 feature high slew rates permitting data transmission rates well excess EIA-232-E specification. drivers maintain signal levels data rates 120-kB/s under worst-case loading conditions.
-10-
REV.
ADM205-ADM211/ADM213
OUTLINE DIMENSIONS
Dimensions shown inches (mm).
24-Lead Plastic (N-24)
24-Lead Cerdip (Q-24)
0.295 (7.493) 1.290 (32.77) 0.320 (8.128) 0.290 (7.366) 0.180 (4.572) SEATING PLANE 0.021 (0.533) 0.015 (0.381) 0.110 (2.794) 0.090 (2.286) 0.065 (1.651) 0.055 (1.397) 0.070 (1.778) 0.020 (0.508) 0.012 (0.305) 0.008 (0.203)
0.260 0.001 (6.61 0.03)
1.228 (31.19) 1.226 (31.14) 0.130 (3.30) 0.128 (3.25)
0.32 (8.128) 0.30 (7.62)
0.225 (5.715) 0.125 (3.175)
SEATING PLANE 0.02 (0.5) 0.016 (0.41) 0.11 (2.79) 0.09 (2.28) 0.07 (1.78) 0.05 (1.27)
0.011 (0.28) 0.009 (0.23)
NOTES LEAD IDENTIFIED NOTCH PLASTIC LEADS WILL EITHER SOLDER DIPPED PLATED ACCORDANCE WITH MIL-M-38510 REQUIREMENTS.
LEAD IDENTIFIED NOTCH. CERDIP LEADS WILL EITHER PLATED SOLDER DIPPED ACCORDANCE WITH MIL-M-38510 REQUIREMENTS.
24-Lead Plastic (N-24A)
0.55 (13.97) 0.53 (13.47) 1.25 (31.75) 1.24 (31.5) (5.08) 0.175 (4.45) 0.12 (3.05) 0.02 (0.508) 0.015 (0.381) 0.105 (2.67) 0.095 (2.42) 0.065 (1.66) 0.045 (1.15) SEATING PLANE 0.16 (4.07) 0.14 (3.56) 0.606 (15.4) 0.594 (15.09)
28-Lead SOIC (R-28)
0.299 (7.6) 0.291 (7.39) 0.414 (10.52) 0.398 (10.10)
0.012 (0.305) 0.008 (0.203)
0.608 (15.45) 0.596 (15.13)
0.096 (2.44) 0.089 (2.26)
0.03 (0.76) 0.02 (0.51)
0.01 (0.254) 0.006 (0.15)
0.05 (1.27)
0.019 (0.49) 0.014 (0.35)
0.013 (0.32) 0.009 (0.23)
0.042 (1.067) 0.018 (0.447)
LEAD IDENTIFIED DOT. SOIC LEADS WILL EITHER PLATED SOLDER DIPPED ACCORDANCE WITH MIL-M-38510 REQUIREMENTS
28-Lead SSOP (RS-28)
0.212 (5.38) 0.205 (5.207) 0.311 (7.9) 0.301 (7.64)
0.328 (8.33) 0.318 (8.08)
0.07 (1.78) 0.066 (1.67)
0.008 (0.203) 0.002 (0.050)
0.0256 (0.65)
0.009 (0.229) 0.005 (0.127)
0.037 (0.94) 0.022 (0.559)
LEAD IDENTIFIED DOT. LEADS WILL EITHER PLATED SOLDER DIPPED ACCORDANCE WITH MIL-M-38510 REQUIREMENTS
REV.
-11-
ADM205-ADM211/ADM213
OUTLINE DIMENSIONS
Dimensions shown inches (mm).
0.299 (7.6) 0.291 (7.39)
0.212 (5.38) 0.205 (5.207) 0.311 (7.9) 0.301 (7.64)
0.414 (10.52) 0.398 (10.10)
0.708 (18.02) 0.696 (17.67) 0.096 (2.44) 0.089 (2.26)
0.03 (0.76) 0.02 (0.51)
0.407 (10.34) 0.397 (10.08)
0.07 (1.78) 0.066 (1.67)
0.01 (0.254) 0.006 (0.15)
0.05 (1.27)
0.019 (0.49) 0.014 (0.35)
0.013 (0.32) 0.009 (0.23)
0.042 (1.067) 0.018 (0.457)
LEAD IDENTIFIED DOT. SOICLEADS WILL EITHER PLATED SOLDER DIPPED ACCORDANCE WITH MIL-M-38510 REQUIREMENTS.
0.008 (0.203) 0.002 (0.050)
0.0256 (0.65)
0.009 (0.229) 0.005 (0.127)
0.037 (0.94) 0.022 (0.559)
LEAD IDENTIFIED DOT. LEADS WILL EITHER PLATED SOLDER DIPPED ACCORDANCE WITH MIL-M-38510 REQUIREMENTS
-12-
REV.
PRINTED U.S.A.
C1897-18-4/94
28-Lead SOIC (R-28)
28-Lead SSOP (RS-28)

Powered CMOS RS-232 Drivers/Receivers ADM205-ADM211/ADM213 TYPICA

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