Multiprotocol, 3Tx/3Rx, SoftwareSelectable Clock/Data Transceivers
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19-3444; 10/04
Multiprotocol, 3Tx/3Rx, SoftwareSelectable Clock/Data Transceivers
MXL1543B three-driver/three-receiver multiprotocol transceiver that operates from single supply. MXL1543B, along with MXL1544/MAX3175 MXL1344A, form complete software-selectable data terminal equipment (DTE) data communication equipment (DCE) interface port that supports V.28 (RS-232), V.10/V.11 (RS-449/V.36, EIA-530, EIA530A, X.21), V.35 protocols. MXL1543B transceivers carry high-speed clock data signals while MXL1544/MAX3175 carry control signals. MXL1543B terminated MXL1344A software-selectable resistor termination network discrete termination networks. internal charge pump proprietary low-dropout transmitter output stage allow V.11- V.28- V.35compliant operation from single supply. nocable mode entered when mode pins (M0, pulled high left unconnected. nocable mode, supply current decreases 0.5µA transmitter receiver outputs disabled (high impedance). Short-circuit current limiting thermal shutdown circuitry protect drivers against excessive power dissipation.
Features
MXL1543B, MXL1544/MAX3175, MXL1344A Chipset Compatible with LTC1543, LTC1544, LTC1344A Supports RS-232, RS-449, EIA-530, EIA-530A, V.35, V.36, X.21 Software-Selectable Cable Termination Using MXL1344A Complete Port with MXL1544/ MAX3175, MXL1344A Single-Supply Operation 0.5µA No-Cable Mode TUV-Certified NET1/NET2 TBR1/TBR2Compliant
MXL1543B
Ordering Information
PART MXL1543BCAI TEMP RANGE +70°C PIN-PACKAGE SSOP
Applications
Data Networking Data Routers Cards Telecommunications Equipment
Configuration appears data sheet.
Typical Operating Circuit
SCTE
MXL1544 MAX3175
MXL1543B
MXL1344A
(141)
(106) (109)
(107)
(108) (105)
SHIELD (101)
(102)
(104)
(115)
(114) SCTE (113) SCTE (103)
DB-25 CONNECTOR
Maxim Integrated Products
pricing, delivery, ordering information, please contact Maxim/Dallas Direct! 1-888-629-4642, visit Maxim's website www.maxim-ic.com.
Multiprotocol, 3Tx/3Rx, SoftwareSelectable Clock/Data Transceivers MXL1543B
ABSOLUTE MAXIMUM RATINGS
Voltages Referenced Unless Otherwise Noted. Supply Voltages .-0.3V .-0.3V +7.3V VEE.+0.3V -6.5V (Note 1).13V Logic Input Voltages DCE/DTE, T_IN .-0.3V Logic Output Voltages R_OUT .-0.3V (VCC 0.3V) Transmitter Outputs T_OUT_, T3OUT_/R1IN_.-15V +15V Short-Circuit Duration.Continuous Note absolute difference cannot exceed 13V. Receiver Input R_IN_T3OUT_/R1IN_ .-15V +15V R_IN R_IN B.-15V +15V Continuous Power Dissipation +70°C) 28-Pin SSOP (derate 9.5mW/°C above +70°C) .762mW Operating Temperature Range MXL1543BCAI .0°C 70°C Junction Temperature .150°C Storage Temperature Range .-65°C +150°C Lead Temperature (soldering, 10s) .+300°C
Stresses beyond those listed under "Absolute Maximum Ratings" cause permanent damage device. These stress ratings only, functional operation device these other conditions beyond those indicated operational sections specifications implied. Exposure absolute maximum rating conditions extended periods affect device reliability.
ELECTRICAL CHARACTERISTICS
(VCC +5.0V, 1µF, 4.7µF, (Figure 10), TMIN TMAX. Typical values +25°C, unless otherwise noted.)
PARAMETER CHARACTERISTICS Operating Range RS-530, RS-530A, X.21, load Supply Current (DCE Mode) (Digital Inputs VCC) (Transmitter Outputs Static) RS-530, RS-530A, X.21, full load V.35 mode, load V.35 mode, full load V.28 mode, load V.28 mode, full load No-cable mode RS-530, RS-530A, X.21, full load Internal Power Dissipation (DCE Mode) V.35 mode, full load V.28 mode, full load mode (except no-cable mode), load Positive Charge-Pump Output Voltage V.28 mode, with load V.28, V.35 modes, with load, 10mA V.28, V.35, load Negative Charge-Pump Output Voltage Supply Rise Time Input High Voltage Input Voltage Logic Input Current V.28 mode, full load V.35 mode, full load RS-530, RS-530A, X.21, full load T1IN, T2IN, T3IN DCE/DTE DCE/DTE -100 No-cable mode power-up turn LOGIC INPUTS (M0, DCE/DTE, T1IN, T2IN, T3IN) 4.75 -5.6 -5.6 -5.6 -5.6 -5.4 -5.4 -5.4 5.25 SYMBOL CONDITIONS UNITS
Multiprotocol, 3Tx/3Rx, SoftwareSelectable Clock/Data Transceivers
ELECTRICAL CHARACTERISTICS (continued)
(VCC +5.0V, 1µF, 4.7µF, (Figure 10), TMIN TMAX. Typical values +25°C, unless otherwise noted.)
PARAMETER Output High Voltage Output Voltage Output Short-Circuit Current Output Pullup Current V.11 TRANSMITTER Open-Circuit Differential Output Voltage Loaded Differential Output Voltage Change Magnitude Output Differential Voltage Common-Mode Output Voltage Change Magnitude Output Common-Mode Voltage Short-Circuit Current Output Leakage Current Rise Fall Time Transmitter Input Output Delay Data Skew Output Output Skew V.11 RECEIVER Differential Threshold Voltage Input Hysteresis Receiver Input Current Receiver Input Resistance Rise Fall Time Receiver Input Output Delay Data Skew V.35 TRANSMITTER Differential Output Voltage Output High Current Output Current Open circuit (Figure With load, (Figure VA,B VA,B ±0.44 ±0.55 ±0.66 tPHL,tPLH
|tPHL- tPLH|
MXL1543B
SYMBOL
CONDITIONS ISOURCE ISINK VOUT VOUT no-cable mode
UNITS
LOGIC OUTPUTS (R1OUT, R2OUT, R3OUT)
VODO
Open circuit, 1.95k (Figure (Figure +25oC (Figure VODO
0.67 VODO
VODL
tPHL tPLH
ItPHL- tPLHI tSKEW
(Figure (Figure
(Figure VOUT -0.25V VOUT +0.25V, power-off no-cable mode (Figures (Figures (Figures (Figures -10V -10V (Figures (Figures (Figures -200
±100
±0.66
Multiprotocol, 3Tx/3Rx, SoftwareSelectable Clock/Data Transceivers MXL1543B
ELECTRICAL CHARACTERISTICS (continued)
(VCC +5.0V, 1µF, 4.7µF, (Figure 10), TMIN TMAX. Typical values +25°C, unless otherwise noted.)
PARAMETER Output Leakage Current Rise Fall Time Transmitter Input Output Delay Data Skew Output-to-Output Skew V.35 RECEIVER Differential Input Voltage Input Hysteresis Receiver Input Current Receiver Input Resistance Rise Fall Time Receiver Input Output Delay Data Skew V.28 TRANSMITTER Output Voltage Swing (Figure Short-Circuit Current Output Leakage Current Output Slew Rate Transmitter Input Output Delay Transmitter Input Output Delay V.28 RECEIVER Input Threshold Input Threshold High Input Hysteresis Input Resistance Rise Fall Time Receiver Input Output Delay Receiver Input Output Delay VHYST tPHL tPLH -15V +15V (Figures (Figures (Figures 0.05 tPHL tPLH -0.25V VOUT +0.25V, power-off nocable mode 2500pF (Figures 2500pF (Figures 2500pF (Figures Open circuit ±150 ±100 V/µs
tPHL, tPLH |tPHL-tPLH|
SYMBOL tPHL, tPLH
|tPHL-tPLH|
CONDITIONS -0.25V VOUT +0.25V, power-off nocable mode (Figures (Figures (Figures (Figures (Figure (Figure -10V VA,B -10V VA,B (Figures (Figures (Figures
±100
UNITS
tSKEW
-200
±0.66
Multiprotocol, 3Tx/3Rx, SoftwareSelectable Clock/Data Transceivers MXL1543B
Typical Operating Characteristics
(VCC +5.0V, =1µF, 4.7µF, (Figure 10), TMIN TMAX, +25°C, unless otherwise noted.)
V.11 SUPPLY CURRENT DATA RATE
MXL1543B toc01
V.28 SUPPLY CURRENT DATA RATE
MXL1543B toc02
V.35 SUPPLY CURRENT DATA RATE
SUPPLY CURRENT (mA) MODE, FULL LOAD, TRANSMITTERS OPERATING SPECIFIED DATA RATE 1000 10,000
MXL1543B toc03
SUPPLY CURRENT (mA)
MODE TRANSMITTERS OPERATING SPECIFIED DATA RATE 2500pF
SUPPLY CURRENT (mA)
1000 10,000 DATA RATE (kbps) MODE, TRANSMITTERS OPERATING SPECIFIED DATA RATE DATA RATE (kbps)
DATA RATE (kbps)
V.11 DRIVER DIFFERENTIAL OUTPUT VOLTAGE TEMPERATURE
MXL1543B toc04
V.28 OUTPUT VOLTAGE TEMPERATURE
OUTPUT VOLTAGE VOUTVOUT+ MODE,
MXL1543B toc05
V.35 OUTPUT VOLTAGE TEMPERATURE
MODE, FULL LOAD
MXL1543B toc06
DRIVER DIFFERENTIAL OUTPUT VOLTAGE
VOUTDCE MODE, VOUT+
0.66 0.44 OUTPUT VOLTAGE 0.22 -0.22 -0.44 -0.66
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
V.35 DIFFERENTIAL OUTPUT VOLTAGE COMMON-MODE VOLTAGE
MXL1543B toc07
V.11/V.35 RECEIVER INPUT CURRENT INPUT VOLTAGE
MXL1543B toc08
V.28 RECEIVER INPUT CURRENT INPUT VOLTAGE
RECEIVER INPUT CURRENT (mA) -0.5 -1.0 -1.5 -2.0 -2.5 MODE
MXL1543B toc09
DIFFERENTIAL OUTPUT VOLTAGE (mV) COMMON-MODE VOLTAGE |VOD|
MODE RECEIVER INPUT CURRENT (µA) -100 -200 -300
INPUT VOLTAGE
INPUT VOLTAGE
Multiprotocol, 3Tx/3Rx, SoftwareSelectable Clock/Data Transceivers MXL1543B
Typical Operating Characteristics (continued)
(VCC +5.0V, =1µF, 4.7µF (Figure 10), +25°C, unless otherwise noted.)
V.11 LOOPBACK OPERATION
MXL1543B toc10
V.28 LOOPBACK OPERATION
MXL1543B toc11
V.35 LOOPBACK OPERATION
MXL1543B toc12
5V/div
2500pF
FULL LOAD 5V/div 5V/div
TOUT/RIN
5V/div
TOUT/RIN
5V/div
TOUT/RIN
1V/div
ROUT
5V/div ROUT
5V/div
ROUT
5V/div
200ns/div
1µs/div
200ns/div
V.28 SLEW RATE CLOAD
MXL1543B toc13
V.11 TRANSMITTER PROPAGATION DELAY TEMPERATURE
MXL1543B toc14
V.11 RECEIVER PROPAGATION DELAY TEMPERATURE
PROPAGATION DELAY (ns) tPLH tPHL
MXL1543B toc15
PROPAGATION DELAY (ns) TEMPERATURE (°C) tPHL tPLH
SLEW RATE (V/µs)
+SLEW -SLEW
TRANSMITTER SWITCHING 250kbps. OTHER TRANSMITTERS SWITCHING 15kbps 1000 2000 3000 4000 5000
CLOAD (pF)
TEMPERATURE (°C)
V.35 TRANSMITTER PROPAGATION DELAY TEMPERATURE
MXL1543B toc16
V.35 RECEIVER PROPAGATION DELAY TEMPERATURE
PROPAGATION DELAY (ns) tPLH tPHL
MXL1543B toc17
PROPAGATION DELAY (ns) TEMPERATURE (°C) tPHL tPLH
TEMPERATURE (°C)
Multiprotocol, 3Tx/3Rx, SoftwareSelectable Clock/Data Transceivers MXL1543B
Test Circuits
100pF 15pF
100pF
Figure V.11 Test Circuit
Figure V.11 Test Circuit
15pF
Figure V.35 Transmitter/Receiver Test Circuit
15pF
Figure V.28 Driver Test Circuit
Figure V.28 Receiver Test Circuit
Multiprotocol, 3Tx/3Rx, SoftwareSelectable Clock/Data Transceivers MXL1543B
Timing Diagrams
tSKEW tSKEW 1.5V tPLH VDIFF V(A) V(B) 1MHz: 10ns: 10ns
1.5V tPHL
Figure V.11, V.35 Driver Propagation Delays
tPLH 1.5V
1MHz: 10ns: 10ns
INPUT
tPHL
OUTPUT
1.5V
Figure V.11, V.35 Receiver Propagation Delays
1.5V tPHL 1.5V tPLH
Figure V.28 Driver Propagation Delays
1.3V tPHL 0.8V 1.7V tPLH 2.4V
Figure V.28 Receiver Propagation Delays
Multiprotocol, 3Tx/3Rx, SoftwareSelectable Clock/Data Transceivers
Description
NAME C1C1+ T1IN T2IN T3IN R1OUT R2OUT R3OUT DCE/DTE R3INB R3INA R2INB R2INA T3OUTB/R1INB T3OUTA/R1INA T2OUTB T2OUTA T1OUTB T1OUTA C2C2+ FUNCTION Capacitor Negative Terminal. Connect ceramic capacitor between C1-. Capacitor Positive Terminal. Connect ceramic capacitor between C1-. Generated Positive Supply. Connect 4.7µF ceramic capacitor ground. Supply Voltage (±5%). Decouple with capacitor ground. Transmitter TTL-Compatible Input Transmitter TTL-Compatible Input Transmitter TTL-Compatible Input Receiver CMOS Output Receiver CMOS Output Receiver CMOS Output Mode-Select with Internal Pullup Mode-Select with Internal Pullup Mode-Select with Internal Pullup DCE/DTE Mode-Select with Internal Pullup Noninverting Receiver Input Inverting Receiver Input Noninverting Receiver Input Inverting Receiver Input Noninverting Transmitter Output/Noninverting Receiver Input Inverting Transmitter Output/Inverting Receiver Input Noninverting Transmitter Output Inverting Transmitter Output Noninverting Transmitter Output Inverting Transmitter Output Ground Generated Negative Supply. Connect 4.7µF ceramic capacitor ground. Capacitor Negative Terminal. Connect ceramic capacitor between C2-. Capacitor Positive Terminal. Connect ceramic capacitor between C2-.
MXL1543B
Detailed Description
MXL1543B three-driver/three-receiver, multiprotocol transceiver that operates from single supply. MXL1543B, along with MXL1544/MAX3175 MXL1344A, form complete software-selectable interface port that supports V.28 (RS-232), V.10/V.11 (RS-449/V.36, EIA-530, EIA-530A, X.21), V.35 protocols. MXL1543B transceivers carry high-speed clock data signals, while MXL1544/MAX3175 transceivers carry serial interface control signaling. MXL1543B terminated MXL1344A software-selectable resistor termination network discrete termination network. MXL1543B features 0.5µA no-cable mode, true fail-safe
operation, thermal shutdown circuitry. Thermal shutdown protects drivers against excessive power dissipation. When activated, thermal shutdown circuitry places driver outputs into high-impedance state.
Mode Selection
state mode-select pins determines which serial interface protocol selected (Table state DCE/DTE input determines whether transceiver will configured serial port. When DCE/DTE input logic HIGH, driver activated receiver disabled. When DCE/DTE input logic LOW, driver disabled receiver activated.
Multiprotocol, 3Tx/3Rx, SoftwareSelectable Clock/Data Transceivers MXL1543B
Table Mode Selection
MXL1543B MODE NAME Used (Default V.11) RS-530A RS-530 X.21 V.35 RS-449/V.36 V.28/RS-232 Cable Used (Default V.11) RS-530A RS-530 X.21 V.35 RS-449/V.36 V.28/RS-232 Cable DCE/ V.11 V.11 V.11 V.11 V.35 V.11 V.28 V.11 V.11 V.11 V.11 V.35 V.11 V.28 V.11 V.11 V.11 V.11 V.35 V.11 V.28 V.11 V.11 V.11 V.11 V.35 V.11 V.28 V.11 V.11 V.11 V.11 V.35 V.11 V.28 V.11 V.11 V.11 V.11 V.35 V.11 V.28 V.11 V.11 V.11 V.11 V.35 V.11 V.28 V.11 V.11 V.11 V.11 V.35 V.11 V.28 V.11 V.11 V.11 V.11 V.35 V.11 V.28 V.11 V.11 V.11 V.11 V.35 V.11 V.28
DCE/DTE internally pulled ensure logic HIGH left unconnected.
No-Cable Mode
MXL1543B will enter no-cable mode when mode-select pins left unconnected connected high this mode, multiprotocol drivers receivers disabled supply current drops 0.5µA. receivers' outputs enter high-impedance state no-cable mode, which allow these output lines shared with other receivers' outputs (the receivers' outputs have internal pullup resistors pull outputs HIGH driven). Also, no-cable mode, transmitter outputs enter highimpedance state that these output lines shared with other devices.
reservoir capacitor (C3, generate supplies. Figure shows charge-pump connections.
Fail-Safe Receivers
MXL1543B guarantees logic-high receiver output when receiver inputs shorted open, when they connected terminated transmission line with drivers disabled. This done setting receivers' threshold between -25mV -200mV V.11 V.35 modes. differential receiver input
MXL1543B
4.7µF C1VCC C2VEE
Dual Charge-Pump Voltage Converter
MXL1543B's internal power supply consists regulated dual charge pump that provides positive negative output voltages from supply. charge pump operates discontinuous mode. output voltage less than regulated voltage, charge pump enabled. output voltage exceeds regulated voltage, charge pump disabled. Each charge pump requires flying capacitor (C1,
4.7µF
Figure Charge Pump
Multiprotocol, 3Tx/3Rx, SoftwareSelectable Clock/Data Transceivers MXL1543B
100pF 100pF 100pF
4.7µF DTE_TXD/DCE_RXD DTE_SCTE/DCE_RXC DTE_TXC/DCE_TXC DTE_RXC/DCE_SCTE DTE_RXD/DCE_TXD CHARGE PUMP 4.7µF
MXL1344A
LATCH DCE/DTE
SCTE SCTE
SCTE SCTE
MXL1543B DCE/DTE
SHIELD
DB-25 CONNECTOR DCE/DTE
DTE_RTS/DCE_CTS DTE_DTR/DCE_DSR
DTE_DCD/DCE_DCD DTE_DSR/DCE_DTR DTE_CTS/DCE_RTS
MXL1544 MAX3175 DCE/DTE INVERT
Figure Cable-Selectable Multiprotocol DTE/DCE Port
Multiprotocol, 3Tx/3Rx, SoftwareSelectable Clock/Data Transceivers MXL1543B
GENERATOR BALANCED INTERCONNECTING CABLE LOAD CABLE TERMINATION RECEIVER -10V +10V 3.25mA
-3.25mA
Figure Receiver Input Impedance
Figure Typical V.11 Interface
voltage -25mV, R_OUT logic HIGH. -200mV, R_OUT logic LOW. case terminated with transmitters disabled, receiver's differential input voltage pulled zero termination. With receiver thresholds MXL1543B, this results logic HIGH with 25mV minimum noise margin.
DCE/DTE wired DB-25 connector. select serial interface mode, appropriate combination DCE/DTE grounded within cable wiring. control lines that grounded pulled high internal pullups MXL1543B. serial interface protocol MXL1543B, MXL1544/MAX3175, MXL1344A selected based cable that connected DB-25 interface.
V.11 Interface
shown Figure V.11 protocol fully balanced differential interface. V.11 driver generates minimum between nodes when (min) resistance presented load. V.11 receiver sensitive ±200mV differential signals receiver inputs V.11 receiver rejects common-mode signals developed across cable (referenced from ±7V, allowing error-free reception noisy environments. receiver inputs must comply with impedance curve shown Figure high-speed data transmission, V.11 specification recommends terminating cable receiver with resistor. This resistor, although required, prevents reflections from corrupting transmitted data. Figure MXL1344A used terminate V.11 receiver. Internal MXL1344A, closed open present minimum differential resistance. MXL1543B's internal V.28 termination disabled opening
Applications Information
Capacitor Selection
capacitors used charge pumps, well supply bypassing, should have equivalent series resistance (ESR) temperature coefficient. Multilayer ceramic capacitors with dielectric offer best combination performance, size, cost. flying capacitors (C1, bypass capacitor (C4) should have value 1µF, while reservoir capacitors (C3, should have minimum value 4.7µF (Figure 10). reduce ripple present transmitter outputs, capacitors increased. values should increased.
Cable Termination
MXL1344A software-selectable resistor network designed used with MXL1543B. MXL1344A multiprotocol termination network provides V.11- V.35-compliant termination, while V.28 receiver termination internal MXL1543B. These cable termination networks provide compatibility with V.11, V.28, V.35 protocols. Using MXL1344A termination networks provide advantage having build expensive termination networks resistors relays, manually changing termination modules, building custom termination networks
V.35 Interface
Figure shows fully-balanced, differential standard V.35 interface. generator load must both present differential impedance common-mode impedance shown resistive networks Figure V.35 driver generates current output (±11mA, typ) that develops output voltage ±550mV across generator load termination networks. V.35 receiver sensitive ±200mV differential signals receiver inputs V.35 receiver rejects common-mode sig-
Cable-Selectable Mode
cable-selectable multiprotocol interface shown Figure mode control lines
Multiprotocol, 3Tx/3Rx, SoftwareSelectable Clock/Data Transceivers MXL1543B
MXL1543B
MXL1344A
RECEIVER
Figure V.11 Termination Internal Resistance Networks
GENERATOR
BALANCED INTERCONNECTING CABLE CABLE TERMINATION
LOAD RECEIVER
Figure Typical V.35 Interface
MXL1543B
MXL1344A
RECEIVER
Figure V.35 Termination Internal Resistance Networks
Multiprotocol, 3Tx/3Rx, SoftwareSelectable Clock/Data Transceivers MXL1543B
GENERATOR UNBALANCED INTERCONNECTING CABLE CABLE TERMINATION LOAD RECEIVER
Figure Typical V.28 Interface
MXL1543B
MXL1344A
RECEIVER
Figure V.28 Termination Internal Resistance Networks
nals developed across cable (referenced from ±4V, allowing error-free reception noisy environments. Figure MXL1344A used implement resistive network that needed properly terminate V.35 driver receiver. Internal MXL1344A, closed connect T-network resistors circuit. V.28 termination resistor (internal MXL1543B) disabled opening avoid interference with T-network impedance.
Figure shows MXL1344A's termination network disabled opening MXL1543B's internal V.28 termination enabled closing
Operation
Figure shows controller-selectable interface. DCE/DTE (pin switches port's mode operation. Table This application requires only DB-25 connector, separate cables signal routing. Figure complete signal routing modes.
V.28 Interface
V.28 interface unbalanced single-ended interface (Figure 17). V.28 driver generates minimum across load impedance between V.28 receiver single-ended input. rejecting system noise, MXL1543B's V.28 receiver typical hysteresis 0.05V.
Complete Multiprotocol X.21 Interface
complete DTE-to-DCE interface operating X.21 mode shown Figure MXL1543B used generate clock data signals, MXL1544/MAX3175 generate control signals
Multiprotocol, 3Tx/3Rx, SoftwareSelectable Clock/Data Transceivers MXL1543B
100pF 100pF 100pF
4.7µF DTE_TXD/DCE_RXD DTE_SCTE/DCE_RXC DTE_TXC/DCE_TXC DTE_RXC/DCE_SCTE DTE_RXD/DCE_TXD CHARGE PUMP 4.7µF
MXL1344A
LATCH DCE/DTE
SCTE SCTE
SCTE SCTE
MXL1543B DCE/DTE
SHIELD
DB-25 CONNECTOR
DTE_RTS/DCE_CTS DTE_DTR/DCE_DSR
DTE_DCD/DCE_DCD DTE_DSR/DCE_DTR DTE_CTS/DCE_RTS DTE_LL/DCE_LL
MXL1544 MAX3175 INVERT DCE/DTE DCE/DTE
Figure Multiprotocol DCE/DTE Port
Multiprotocol, 3Tx/3Rx, SoftwareSelectable Clock/Data Transceivers MXL1543B
SERIAL CONTROLLER SCTE
MXL1543B MXL1344A MXL1344A
MXL1543B
SERIAL CONTROLLER SCTE
SCTE
MXL1544 MAX3175
MXL1544 MAX3175
Figure DCE-to-DTE X.21 Interface
local loopback (LL). MXL1344A used terminate clock data signals support V.11 protocol cable termination. control signals need external termination.
Compliance Testing
European Standard 45001 test report pending MXL1543B/MXL1544/MXL1344A chipset. copy test report will available from Maxim upon completion.
Multiprotocol, 3Tx/3Rx, SoftwareSelectable Clock/Data Transceivers
Chip Information
TRANSISTOR COUNT: 2619 PROCESS: BiCMOS
VIEW
T1IN T2IN T3IN R1OUT R2OUT R3OUT DCE/DTE C226 T1OUTA
Configuration
MXL1543B
MXL1543B
T1OUTB T2OUTA T2OUTB T3OUTA/R1INA T3OUTB/R1INB R2INA R2INB R3INA R3INB
SSOP
Multiprotocol, 3Tx/3Rx, SoftwareSelectable Clock/Data Transceivers MXL1543B
Package Information
(The package drawing(s) this data sheet reflect most current specifications. latest package outline information, www.maxim-ic.com/packages.)
SSOP.EPS
INCHES 0.068 0.002 0.010 0.078 0.008 0.015
MILLIMETERS 1.73 0.05 0.25 1.99 0.21 0.38 INCHES 0.239 0.239 0.278 0.317 0.397 0.249 0.249 0.289 0.328 0.407 MILLIMETERS 6.07 6.07 7.07 8.07 10.07 6.33 6.33 7.33 8.33 10.33
0.20 0.09 0.004 0.008 VARIATIONS 0.205 0.301 0.025 0.212 0.311 0.037 5.20 7.65 0.63 5.38 7.90 0.95 0.0256 0.65
NOTES: INCLUDE MOLD FLASH. MOLD FLASH PROTRUSIONS EXCEED (.006"). CONTROLLING DIMENSION: MILLIMETERS. MEETS JEDEC MO150. LEADS COPLANAR WITHIN 0.10
PROPRIETARY INFORMATION TITLE:
PACKAGE OUTLINE, SSOP,
APPROVAL DOCUMENT CONTROL REV.
21-0056
Maxim cannot assume responsibility circuitry other than circuitry entirely embodied Maxim product. circuit patent licenses implied. Maxim reserves right change circuitry specifications without notice time.
_Maxim Integrated Products, Gabriel Drive, Sunnyvale, 94086 408-737-7600 2004 Maxim Integrated Products Printed registered trademark Maxim Integrated Products.
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