3.3 V Slew Rate Limited, Half- and Full-Duplex, RS-485/RS-422 Transceivers ADM3483/ADM3485/ADM3488/ADM3490/ADM3491

Transcription

1 3.3 V Slew ate Limited, Half- and Full-uplex, S-485/S-422 Transceivers M3483/M3485/M3488/M349/M3491 FETUES Operate with 3.3 V supply Interoperable with 5 V logic EI S-422 and S-485 compliant over full common-mode range ata rate options M3483/M3488: 25 kbps M3485/M349/M3491: 1 Mbps Half- and full-duplex options educed slew rates for low EMI (M3483 and M3488) 2 n supply current in shutdown mode (M3483/M3485/M3491) Up to 32 transceivers on the bus 7 V to +12 V bus common-mode range Specified over the 4 C to +85 C temperature range 8 ns skew (M3485/M349/M3491) 8-lead SOIC and 14-lead SOIC (M3491 only) packages PPLICTIONS Low power S-485/S-422 applications Telecom Industrial process control HVC GENEL ESCIPTION The M3483/M3485/M3488/M349/M3491 are low power, differential line transceivers designed to operate using a single 3.3 V power supply. Low power consumption, coupled with a shutdown mode, makes the M3483/M3485/M3488/ M349/M3491 ideal for power-sensitive applications. The M3488/M349/M3491 feature full-duplex communication, while the M3483/M3485 are designed for half-duplex communication. The M3483/M3488 feature slew rate limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 25 kbps. The M3485/M349/M3491 transmit at up to 1 Mbps. The receiver input impedance is 12 kω, allowing up to 32 transceivers to be connected on the bus. thermal shutdown circuit prevents excessive power dissipation caused by bus contention or by output shorting. If a significant temperature increase is detected FUNCTIONL LOCK IGMS O E E I O I O E E I M3483/ M3485 GN Figure 1. M3488/ M349 GN Figure 2. M3491 Figure 3. in the internal driver circuitry during fault conditions, then the thermal shutdown circuit forces the driver output into a high impedance state. If the inputs are unconnected (floating), the receiver contains a fail-safe feature that results in a logic high output state. The parts are fully specified over the commercial and industrial temperature ranges. The M3483/M3485/ M3488/M349 are available in 8-lead SOIC_N; the M3491 is available in a 14-lead SOIC_N. Z Y Z Y ev. Information furnished by nalog evices is believed to be accurate and reliable. However, no responsibility is assumed by nalog evices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of nalog evices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. ox 916, Norwood, M , U.S.. Tel: Fax: nalog evices, Inc. ll rights reserved.

2 M3483/M3485/M3488/M349/M3491 TLE OF CONTENTS Features... 1 pplications... 1 General escription... 1 Functional lock iagrams... 1 evision History... 2 Specifications... 4 Timing Specifications M3485/M349/M Timing Specifications M3483/M Timing Specifications M3483/M3485/M3488/ M349/M bsolute Maximum atings... 7 ES Caution... 7 Pin Configurations and Function escriptions... 8 Test Circuits... 9 Switching Characteristics Typical Performance Characteristics Circuit escription evices with eceiver/river Enables M3483/M3485/M evices Without eceiver/river Enables M3488/M educed EMI and eflections M3483/M Low Power Shutdown Mode river Output Protection Propagation elay Typical pplications Line Length vs. ata ate Outline imensions Ordering Guide EVISION HISTOY 1/6 ev. to ev. Updated Format...Universal dded M Universal Changes to Specifications Section... 4 Changes to Typical pplications Section /6 ev. to ev. Changes to pplications... 1 Changes to General escription... 1 Changes to Figure Changes to Typical pplications Section Changes to Figure 31 and Figure Updated Outline imensions /5 evision : Initial Version ev. Page 2 of 2

3 M3483/M3485/M3488/M349/M3491 Table 1. M34xx Part Comparison Part No. Guaranteed ata ate (Mbps) Supply Voltage (V) Half-/Full- uplex Slew ate Limited river/eceiver Enable Shutdown Current (n) M to 3.6 Half Yes Yes 2 8 M to 3.6 Half No Yes 2 8 M to 3.6 Full Yes No N/ 8 M to 3.6 Full No No N/ 8 M to 3.6 Full No Yes 2 14 Pin Count ev. Page 3 of 2

4 M3483/M3485/M3488/M349/M3491 SPECIFICTIONS VCC = 3.3 V ±.3 V, T = TMIN to TMX, unless otherwise noted. Table 2. Parameter Min Typ Max Unit Test Conditions/Comments IVE ifferential Output Voltage (VO) 2. V L = 1 Ω (S-422), VCC = 3.3 V ± 5% (see Figure 7) 1.5 V L = 54 Ω (S-485) (see Figure 7) 1.5 V L = 6 Ω (S-485), VCC = 3.3 V (see Figure 8) Δ VO for Complementary Output States 1.2 V L = 54 Ω or 1 Ω (see Figure 7) Common-Mode Output Voltage (VOC) 3 V L = 54 Ω or 1 Ω (see Figure 7) Δ VOC for Common-Mode Output Voltage 1.2 V L = 54 Ω or 1 Ω (see Figure 7) IVE INPUT LOGIC CMOS Input Logic Threshold Low (VIH).8 V E, I, E CMOS Input Logic Threshold High (VIL) 2. V E, I, E CMOS Logic Input Current (IIN1) ±2 μ E, I, E Input Current, (IIN2) 1. m VIN = 12 V, E = V, VCC = V or 3.6 V.8 m VIN = 7 V, E = V, VCC = V or 3.6 V Output Leakage Y, Z (IO).1 μ VIN = 12 V, E = V, E = V, VCC = V or 3.6 V, M3491 only.1 μ VIN = 7 V, E = V, E = V, VCC = V or 3.6 V, M3491 only Output Leakage (Y, Z) in Shutdown Mode (IO).1 μ VIN = 12 V, E = V, E = VCC, VCC = V or 3.6 V, M3491 only.1 μ VIN = 7 V, E = V, E = VCC, VCC = V or 3.6 V, M3491 only ECEIVE ifferential Input Threshold Voltage (VTH) V 7 V < VCM < +12 V Input Hysteresis (Δ VTH) 5 mv VCM = V CMOS Output Voltage High (VOH) VCC.4 V I = 1.5 m, VI = 2 mv (see Figure 9) CMOS Output Voltage Low (VOL).4 V I = 2.5 m, VI = 2 mv (see Figure 9) Three-State Output Leakage Current (IOZ) ±1 μ VCC = 3.6 V, V V VCC Input esistance (IN) 12 kω 7 V < VCM < +12 V POWE SUPPLY CUENT Supply Current (ICC) m E = VCC, E = V or VCC, no load, I = V or VCC m E = V, E = V, no load, I = V or VCC Supply Current in Shutdown Mode (ISHN).2 1 μ E = V, E = VCC, I = VCC or V river Short-Circuit Output Current (IOS) 25 m V = 7 V 25 m V = 12 V eceiver Short-Circuit Output Current (IOS) ±8 ±6 m V < VO < VCC 1 ΔVO and ΔVOC are the changes in VO and VOC, respectively, when I input changes state. ev. Page 4 of 2

5 M3483/M3485/M3488/M349/M3491 TIMING SPECIFICTIONS M3485/M349/M3491 VCC = 3.3 V, T = 25 C, unless otherwise noted. Table 3. Parameter Min Typ Max Unit Test Conditions/Comments IVE ifferential Output elay (t) ns L = 6 Ω (see Figure 1 and Figure 16) ifferential Output Transition Time (tt) ns L = 6 Ω (see Figure 1 and Figure 16) Propagation elay, Low-to-High Level (tplh) ns L = 27 Ω (see Figure 11 and Figure 17) Propagation elay, High-to-Low Level (tphl) ns L = 27 Ω (see Figure 11 and Figure 17) tplh tphl Propagation elay Skew 1 (tps) 8 ns L = 27 Ω (see Figure 11 and Figure 17) IVE PUT ENLE/ISLE TIMES (M3485/ M3491 ONLY) Output Enable Time to Low Level (tpzl) 45 9 ns L = 11 Ω (see Figure 13 and Figure 19) Output Enable Time to High Level (tpzh) 45 9 ns L = 11 Ω (see Figure 12 and Figure 18) Output isable Time from High Level (tphz) 4 8 ns L = 11 Ω (see Figure 12 and Figure 18) Output isable Time from Low Level (tplz) 4 8 ns L = 11 Ω (see Figure 13 and Figure 19) Output Enable Time from Shutdown to Low Level (tpsl) 65 9 ns L = 11 Ω (see Figure 13 and Figure 19) Output Enable Time from Shutdown to High Level (tpsh) 65 9 ns L = 11 Ω (see Figure 12 and Figure 18) 1 Measured on tplh (Y) tphl (Y) and tplh (Z) tphl (Z). TIMING SPECIFICTIONS M3483/M3488 VCC = 3.3 V, T = 25 C, unless otherwise noted. Table 4. Parameter Min Typ Max Unit Test Conditions/Comments IVE ifferential Output elay (t) ns L = 6 Ω (see Figure 1 and Figure 16) ifferential Output Transition Time (tt) ns L = 6 Ω (see Figure 1 and Figure 16) Propagation elay, Low-to-High Level (tplh) ns L = 27 Ω (see Figure 11 and Figure 17) Propagation elay, High-to-Low Level (tphl) ns L = 27 Ω (see Figure 11 and Figure 17) tplh tphl Propagation elay Skew 1 (tps) 1 ns L = 27 Ω (see Figure 11 and Figure 17) IVE PUT ENLE/ISLE TIMES (M3483 ONLY) Output Enable Time to Low Level (tpzl) 9 13 ns L = 11 Ω (see Figure 13 and Figure 19) Output Enable Time to High Level (tpzh) 6 8 ns L = 11 Ω (see Figure 12 and Figure 18) Output isable Time from High Level (tphz) 5 8 ns L = 11 Ω (see Figure 12 and Figure 18) Output isable Time from Low Level (tplz) 5 8 ns L = 11 Ω (see Figure 13 and Figure 19) Output Enable Time from Shutdown to Low Level (tpsl) μs L = 11 Ω (see Figure 13 and Figure 19) Output Enable Time from Shutdown to High Level (tpsh) μs L = 11 Ω (see Figure 12 and Figure 18) 1 Measured on tplh (Y) tphl (Y) and tplh (Z) tphl (Z). ev. Page 5 of 2

6 M3483/M3485/M3488/M349/M3491 TIMING SPECIFICTIONS M3483/M3485/M3488/M349/M3491 VCC = 3.3 V, T = 25 C, unless otherwise noted. Table 5. Parameter Min Typ Max Unit Test Conditions/Comments ECEIVE Time to Shutdown (tshn) M3483/M3485/M ns Propagation elay, Low-to-High Level (tplh) M3485/M349/M ns VI = V to 3. V, CL = 15 pf (see Figure 14 and Figure 2) M3483/M ns Propagation elay, High-to-Low Level (tphl) M3485/M349/M ns VI = V to 3. V, CL = 15 pf (see Figure 14 and Figure 2) M3483/M ns tplh tphl Propagation elay Skew (tps) M3485/M349/M ns VI = V to 3. V, CL = 15 pf (see Figure 14 and Figure 2) M3483/M ns ECEIVE PUT ENLE/ISLE TIMES (M3483/M3485/M3491 ONLY) Output Enable Time to Low Level (tpzl) 25 5 ns CL = 15 pf (see Figure 15 and Figure 21) Output Enable Time to High Level (tpzh) 25 5 ns CL = 15 pf (see Figure 15 and Figure 21) Output isable Time from High Level (tphz) ns CL = 15 pf (see Figure 15 and Figure 21) Output isable Time from Low Level (tplz) ns CL = 15 pf (see Figure 15 and Figure 21) Output Enable Time from Shutdown to ns CL = 15 pf (see Figure 15 and Figure 21) Low Level (tpsl) Output Enable Time from Shutdown to High Level (tpsh) ns CL = 15 pf (see Figure 15 and Figure 21) 1 The transceivers are put into shutdown by bringing the E high and E low. If the inputs are in this state for less than 8 ns, the parts are guaranteed not to enter shutdown. If the parts are in this state for 3 ns or more, the parts are guaranteed to enter shutdown. ev. Page 6 of 2

7 M3483/M3485/M3488/M349/M3491 SOLUTE MXIMUM TINGS T = 25 C, unless otherwise noted. Table 6. Parameter ating VCC to GN 7 V igital I/O Voltage (E, E, I).3 V to VCC +.3 V igital I/O Voltage (O) VCC.5 V to VCC +.5 V river Output/eceiver Input Voltage 7.5 V to V Operating Temperature ange 4 C to +85 C Storage Temperature ange 65 C to +125 C θj Thermal Impedance 8-Lead SOIC 121 C/W 14-Lead SOIC 86 C/W Lead Temperature Soldering (1 sec) 3 C Vapor Phase (6 sec) 215 C Infrared (15 sec) 22 C Stresses above those listed under bsolute Maximum atings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ES CUTION ev. Page 7 of 2

8 M3483/M3485/M3488/M349/M3491 PIN CONFIGUTIONS N FUNCTION ESCIPTIONS NC 1 14 O 1 E 2 E 3 I 4 M3483/ M3485 TOP VIEW (Not to Scale) GN O 2 I 3 GN 4 M3488/ M349 TOP VIEW (Not to Scale) Z Y O 2 13 E 3 M E 4 TOP VIEW 11 I 5 (Not to Scale) 1 Z GN 6 9 Y GN 7 8 NC NC = NO CONNECT Figure 4. M3483/M3485 Pin Configuration Figure 5. M3488/M349 Pin Configuration Figure 6. M3491 Pin Configuration Table 7. Pin Function escriptions M3483/M3485 Pin No. M3488/M349 Pin No. M3491 Pin No. Mnemonic escription O eceiver Output. When enabled, if > by 2 mv, then O = high. If < by 2 mv, then O = low. 2 N/ 3 E eceiver Output Enable. low level enables the receiver output, O. high level places it in a high impedance state. If E is high and E is low, the device enters a low power shutdown mode. 3 N/ 4 E river Output Enable. high level enables the driver differential Output and Output. low level places it in a high impedance state. If E is high and E is low, the device enters a low power shutdown mode I river Input. With a half-duplex part when the driver is enabled, a logic low on I forces low and high while a logic high on I forces high and low. With a full-duplex part when the driver is enabled, a logic low on I forces Y low and Z high while a logic high on I forces Y high and Z low , 7 GN Ground. N/ 5 9 Y Noninverting river Output. N/ 6 1 Z Inverting river Output. 6 N/ N/ Noninverting eceiver Input and Noninverting river Output. N/ 8 12 Noninverting eceiver Input. 7 N/ N/ Inverting eceiver Input and Inverted river Output. N/ 7 11 Inverting eceiver Input , 14 VCC Power Supply (3.3 V ±.3 V). N/ N/ 1, 8 NC No Connect. ev. Page 8 of 2

9 M3483/M3485/M3488/M349/M3491 TEST CICUITS /Y /Z V O L /2 L /2 V OC GENETO 1 5Ω VCC C L L = 6Ω C L =15pF 2 1PP = 25kHz, 5% UTY CYCLE, t 6.ns, Z O =5Ω. 2C L INCLUES POE N STY CPCITNCE Figure 7. ifferential Output Voltage and Common-Mode Voltage rivers Figure 1. river ifferential Output elay and Transition Times V OM V O L 375Ω V CM = 7V TO +12V GENETO 1 5Ω VCC S1 L =27Ω C L =15pF 2 375Ω V OM = V OH +V OL 2 1PP = 25kHz, 5% UTY CYCLE, t 6.ns, Z O =5Ω. 2C L INCLUES POE N STY CPCITNCE Figure 8. ifferential Output Voltage rivers with Varying Common-Mode Voltage Figure 11. river Propagation elays V O 3V S1 V I C L = 5pF 2 L = 11Ω GENETO 1 5Ω V OL I OL (+) V OH I OH ( ) V OM = V OH +V OL 2 1 PP = 25kHz, 5% UTY CYCLE, t 6.ns, Z O =5Ω. 2C L INCLUES POE N STY CPCITNCE Figure 9. CMOS Output Voltage High and CMOS Output Voltage Low eceivers Figure 12. river Enable and isable Times (tpzh, tpsh, tphz) ev. Page 9 of 2

10 M3483/M3485/M3488/M349/M3491 V O 3V S1 C L =5pF 2 L = 11Ω + S3 1kΩ V I C 2 L S1 S2 GENETO 1 5Ω GENETO 1 5Ω 1 PP = 25kHz, 5% UTY CYCLE, t 6.ns, Z O =5Ω. 2 C L INCLUES POE N STY CPCITNCE PP = 25kHz, 5% UTY CYCLE, t 6.ns, Z O =5Ω. 2C L INCLUES POE N STY CPCITNCE Figure 13. river Enable and isable Times (tpzl, tpsl, tplz) Figure 15. eceiver Enable and isable Times GENETO 1 5Ω V I C L =15pF 2 V OM = 2 1 PP = 25kHz, 5% UTY CYCLE, t 6.ns, Z O =5Ω. 2 C L INCLUES POE N STY CPCITNCE Figure 14. eceiver Propagation elays ev. Page 1 of 2

11 M3483/M3485/M3488/M349/M3491 SWITCHING CHCTEISTICS IN t 9% 9% 5% 1% t T t 5% 1% t T +3V +2V 2V IN t PZH V OM t PHZ.25V 3V V OH Figure 16. river ifferential Output elay and Transition Times Figure 18. river Enable and isable Times (tpzh, tpsh, tphz) 3V IN /Y /Z t PLH V OM t PHL V OM t PHL V OM t PLH V OM V V OH V OL V OH V OL IN V OM t PSL t PLZ.25V 3V V OL Figure 17. river Propagation elays Figure 19. river Enable and isable Times (tpzl, tpsl, tplz) 3V IN t PLH t PHL V OM V OM Figure 2. eceiver Propagation elays IN t PZH t PSH +3V V OH S1 OPEN S2 CLOSE S3 = + IN t PZL t PSL +3V S1 CLOSE S2 OPEN S3 = V OL IN +3V S1 OPEN S2 CLOSE S3 = + IN +3V S1 CLOSE S2 OPEN S3 = t PHZ t PLZ +.25V V OH +.25V Figure 21. eceiver Enable and isable Times V OL ev. Page 11 of 2

12 M3483/M3485/M3488/M349/M3491 TYPICL PEFOMNCE CHCTEISTICS 3.8 PUT CUENT (m) PUT VOLTGE (V) Figure 22. Output Current vs. eceiver Output Low Voltage PUT VOLTGE (V) TEMPETUE ( C) Figure 25. eceiver Output Low Voltage vs. Temperature, IO = 2.5 m PUT CUENT (m) PUT VOLTGE (V) Figure 23. Output Current vs. eceiver Output High Voltage PUT CUENT (m) PUT VOLTGE (V) Figure 26. river Output Current vs. ifferential Output Voltage PUT VOLTGE (V) PUT VOLTGE (V) TEMPETUE ( C) Figure 24. eceiver Output High Voltage vs. Temperature, IO = 1.5 m TEMPETUE ( C) Figure 27. river ifferential Output Voltage vs. Temperature, L = 54 Ω ev. Page 12 of 2

13 M3483/M3485/M3488/M349/M PUT CUENT (m) SUPPLY CUENT (m) E = E = X* E = E = GN *X = ON T CE PUT VOLTGE (V) Figure 28. Output Current vs. river Output Low Voltage TEMPETUE ( C) Figure 3. Supply Current vs. Temperature PUT CUENT (m) SHUTOWN CUENT (n) PUT VOLTGE (V) Figure 29. Output Current vs. river Output High Voltage TEMPETUE ( C) Figure 31. Shutdown Current vs. Temperature ev. Page 13 of 2

14 M3483/M3485/M3488/M349/M3491 CICUIT ESCIPTION The M3483/M3485/M3488/M349/M3491 are low power transceivers for S-485 and S-422 communications. The M3483/M3488 transmit and receive at data rates up to 25 kbps; the M3485/M349/M3491 transmit at up to 1 Mbps. The M3488/M349/M3491 are full-duplex transceivers, while the M3483/M3485 are halfduplex transceivers. river enable (E) and receiver enable (E) pins are included on the M3483/M3485/M3491. When disabled, the driver and receiver outputs are high impedance. EVICES WITH ECEIVE/IVE ENLES M3483/M3485/M3491 Table 8. Transmitting Truth Table Transmitting Input Transmitting Output E E I 1 1 Mode X Normal X Normal X 2 High-Z 3 High-Z 3 Normal 1 X 2 High-Z 3 High-Z 3 Shutdown 1 and outputs are Z and Y respectively, for full-duplex part (M3491). 2 X = don t care. 3 High-Z = high impedance. Table 9. eceiving Truth Table eceiving Input eceiving Output E E 1 O Mode +.2 V 1 Normal.2 V Normal Inputs Open 1 Normal 1 X 2 High-Z 3 Shutdown 1 E is a don t care; X for the full-duplex part (M3491). 2 X = don t care. 3 High-Z = high impedance. EVICES WITH ECEIVE/IVE ENLES M3488/M349 Table 1. Transmitting Truth Table Transmitting Input Transmitting Output I Z Y Table 11. eceiving Truth Table eceiving Input eceiving Output O +.2 V 1.2 V Inputs open 1 EUCE EMI N EFLECTIONS M3483/M3488 The M3483/M3488 are slew rate limited transceivers, minimizing EMI and reducing reflections caused by improperly terminated cables. LOW POWE SHUTOWN MOE (M3483/M3485/M3491) low power shutdown mode is initiated by bringing E high and E low. The devices do not shut down unless both the driver and receiver are disabled (high impedance). In shutdown mode, the devices typically draw only 2 n of supply current. For these devices, the tpsh and tpsl enable times assume the part is in the low power shutdown mode; the tpzh and tpzl enable times assume the receiver or driver was disabled, but the part is not shut down. IVE PUT POTECTION Two methods are implemented to prevent excessive output current and power dissipation caused by faults or by bus contention. Current limit protection on the output stage provides immediate protection against short circuits over the whole common-mode voltage range (see the Typical Performance Characteristics section). In addition, a thermal shutdown circuit forces the driver outputs into a high impedance state if the die temperature rises excessively. POPGTION ELY Skew time is the difference between the low-to-high and highto-low propagation delays. Small driver/receiver skew times help maintain a symmetrical mark-space ratio (5% duty cycle). The receiver skew time ( tplh tphl ) is under 1 ns (2 ns for M3483/M3488). The driver skew times are 8 ns for M3485/M349/M3491 and typically under 1 ns for M3483/M3488. TYPICL PPLICTIONS The M3483/M3485/M3491 transceivers are designed for half-duplex bidirectional data communications on multipoint bus transmission lines, Figure 32 and Figure 33 show typical network applications circuits. The M3488 and the M349 full-duplex transceivers are designed to be used in a daisy-chain network topology or in a point-to-point application, see Figure 34 and Figure 35. The M3491 can be used as line repeat Figure 36. To minimize reflections, the line must be terminated at both ends in its characteristic impedance, and stub lengths off the main line must be kept as short as possible. The slew rate limited M3483/M3488 are more tolerant of imperfect termination. ev. Page 14 of 2

15 M3483/M3485/M3488/M349/M3491 LINE LENGTH VS. T TE The S-485 and S-422 standards cover line lengths up to 4 feet. For line lengths greater than 4 feet, see Figure 36. M3483/ M3485 MXIMUM NUME OF TNSCEIVES ON US = 32 M3483/ M3485 O 1 O E E T T E E I 2 I M3483/ M3485 M3483/ M3485 O E E I NOTES 1. T IS EQUL TO THE CHCTEISTIC IMPENCE OF THE CLE. O E E I Figure 32. M3483/M3485 Typical Half-uplex S-485 Network O E E MSTE Z 1 T 2 MXIMUM NUME OF NOES = 32 1 T Y Z SLVE I E E I Y T T O M M3491 SLVE Z Y Z Y SLVE M3491 M3491 O E E I O E E I NOTES 1. T IS EQUL TO THE CHCTEISTIC IMPENCE OF THE CLE. Figure 33. M3491 Typical Full-uplex S-485 Network ev. Page 15 of 2

16 M3483/M3485/M3488/M349/M3491 O MSTE M3488/ M349 Y Z SLVE M3488/ M349 I I Z Y O M3488/ M349 Z Y Z Y M3488/ M349 SLVE SLVE O I O I Figure 34. M3488/M349 Full-uplex aisy-chain Network O MSTE M3488/ M349 Y Z SLVE M3488/ M349 I I Z Y O Figure 35. M3488/M349 Full-uplex Point-to-Point pplications M3491 O E T T IN E I Z Y T T NOTES 1. T IS EQUL TO THE CHCTEISTIC IMPENCE OF THE CLE. Figure 36. Line epeater for M ev. Page 16 of 2

17 M3483/M3485/M3488/M349/M3491 LINE IMENSIONS 5. (.1968) 4.8 (.189) 4. (.1574) 3.8 (.1497) (.244) 5.8 (.2284).25 (.98).1 (.4) COPLNITY (.5) SC SETING PLNE 1.75 (.688) 1.35 (.532).51 (.21).31 (.122).25 (.98).17 (.67) 8.5 (.196).25 (.99) (.5).4 (.157) COMPLINT TO JEEC STNS MS-12- CONTOLLING IMENSIONS E IN MILLIMETES; INCH IMENSIONS (IN PENTHESES) E OUNE-OFF MILLIMETE EQUIVLENTS FO EFEENCE ONLY N E NOT PPOPITE FO USE IN ESIGN. Figure Lead Standard Small Outline Package [SOIC_N] Narrow ody (-8) imensions shown in millimeters and (inches) 8.75 (.3445) 8.55 (.3366) 4. (.1575) 3.8 (.1496) (.2441) 5.8 (.2283).25 (.98).1 (.39) COPLNITY (.5) SC.51 (.21).31 (.122) 1.75 (.689) 1.35 (.531) SETING PLNE.25 (.98).17 (.67) 8.5 (.197).25 (.98) 1.27 (.5).4 (.157) 45 COMPLINT TO JEEC STNS MS-12- CONTOLLING IMENSIONS E IN MILLIMETES; INCH IMENSIONS (IN PENTHESES) E OUNE-OFF MILLIMETE EQUIVLENTS FO EFEENCE ONLY N E NOT PPOPITE FO USE IN ESIGN. Figure Lead Narrow ody Small Outline [SOIC_N] Narrow ody (-14) imensions shown in millimeters and (inches) ev. Page 17 of 2

18 M3483/M3485/M3488/M349/M3491 OEING GUIE Model Temperature ange Package escription Package Option Ordering Quantity M3483Z 1 4 C to +85 C 8-Lead Narrow ody Small Outline (SOIC_N) -8 M3483Z EEL7 1 4 C to +85 C 8-Lead Narrow ody Small Outline (SOIC_N) -8 1, M3485Z 1 4 C to +85 C 8-Lead Narrow ody Small Outline (SOIC_N) -8 M3485Z EEL7 1 4 C to +85 C 8-Lead Narrow ody Small Outline (SOIC_N) -8 1, M3488Z 1 4 C to +85 C 8-Lead Narrow ody Small Outline (SOIC_N) -8 M3488Z EEL7 1 4 C to +85 C 8-Lead Narrow ody Small Outline (SOIC_N) -8 1, M349Z 1 4 C to +85 C 8-Lead Narrow ody Small Outline (SOIC_N) -8 M349Z EEL7 1 4 C to +85 C 8-Lead Narrow ody Small Outline (SOIC_N) -8 1, M C to +85 C 14-Lead Narrow ody Small Outline (SOIC_N) -14 M3491-EEL 4 C to +85 C 14-Lead Narrow ody Small Outline (SOIC_N) -14 2,5 M3491-EEL7 4 C to +85 C 14-Lead Narrow ody Small Outline (SOIC_N) -14 1, M3491Z 1 4 C to +85 C 14-Lead Narrow ody Small Outline (SOIC_N) -14 M3491Z-EEL 1 4 C to +85 C 14-Lead Narrow ody Small Outline (SOIC_N) -14 2,5 M3491Z-EEL7 1 4 C to +85 C 14-Lead Narrow ody Small Outline (SOIC_N) -14 1, 1 Z = Pb-free part. ev. Page 18 of 2

19 M3483/M3485/M3488/M349/M3491 NOTES ev. Page 19 of 2

20 M3483/M3485/M3488/M349/M3491 NOTES 26 nalog evices, Inc. ll rights reserved. Trademarks and registered trademarks are the property of their respective owners /6() ev. Page 2 of 2