sp3481 Exar Corporation, sp3481 Datasheet
sp3481
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sp3481 Summary of contents
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... Driver Output Short-Circuit Protection DESCRIPTION The SP3481 and the SP3485 are a family of +3.3V low power half-duplex transceivers that meet the specifications of the RS-485 and RS-422 serial protocols. These devices are pin-to- pin compatible with the Sipex SP481, SP483, and SP485 devices as well as popular industry standards ...
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... SP3481/3485 Low Power Half-Duplex RS485 Transceivers 2 CONDITIONS Unloaded ∞; Figure 1 with load 50Ω; (RS-422); Figure 1 with load 27Ω; (RS-485); Figure 27Ω 50Ω; Figure 27Ω 50Ω; Figure 1 Applies to DE, DI, RE Applies to DE, DI, RE Applies to DE, DI, RE -7V ≤ ...
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... SP3481/3485 Low Power Half-Duplex RS485 Transceivers 3 CONDITIONS Figures 6 and + +3.3V, AMB CC Figures 6 and 11 Figures 6 and + +3.3V, AMB CC Figures 6 and 11 ...
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... The SP3481 is equipped with a Shutdown mode. To enable the Shutdown state, both the driver and receiver must be disabled simultaneously. A logic LOW on DE (pin 3) and a logic HIGH on RE (pin 2) will put the SP3481 into Shutdown mode. In Shutdown, supply current will drop to typical 1µA, 10µA maximum. SC ...
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... Figure 6. Receiver Propagation Delay Test Circuit OUTPUTS INPUTS Table 2. Receive Function Truth Table SP3481/3485 Low Power Half-Duplex RS485 Transceivers 27Ω OUT 50Ω 15pF L (NOTE 1.5V ...
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... INPUT PHZ 0.25V 0V V OUTPUT t PLZ 0.25V Figure 11. Receiver Propagation Delay Waveforms 3V 1. PRZH t PRSH V CC OUTPUT 1. < 6.0ns, Z =50Ω SP3481/3485 Low Power Half-Duplex RS485 Transceivers 6 3V 1.5V 1. DO1 DO2 2.0V 90% 90% 50% 10% -2. 1.5V 1. RPLH RPHL ...
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... E 0.300/0.325 (7.620/8.255) 0.240/0.280 E1 (6.096/7.112) 0.115/0.150 L (2.921/3.810) 0°/ 15° Ø (0°/15°) SP3481/3485 Low Power Half-Duplex RS485 Transceivers 7 DUAL–IN–LINE (NARROW) C Ø 0.300 BSC A (7.620 BSC) © Copyright 2002 Sipex Corporation ...
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... D 0.189/0.197 (4.80/5.00) E 0.150/0.157 (3.802/3.988) e 0.050 BSC (1.270 BSC) H 0.228/0.244 (5.801/6.198) h 0.010/0.020 (0.254/0.498) L 0.016/0.050 (0.406/1.270) Ø 0°/8° (0°/8°) SP3481/3485 Low Power Half-Duplex RS485 Transceivers 8 Ø L © Copyright 2000 Sipex Corporation ...
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... SP3485EP ................................................................................... -40˚C to +85˚C .............................................................................. 8-pin Plastic DIP Please consult the factory for pricing and availability on a Tape-On-Reel option. Available in lead free packaging. To order, add "-L" suffix to the part number. Example: SP3481CN = standard; SP3481CN -L = lead free. Corporation SIGNAL PROCESSING EXCELLENCE ...