for free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. for small orders, phone 1-800-835-8769. general description the max3180?ax3183 are single rs-232 receivers in a sot23-5 package for space- and cost-constrained applications requiring minimal rs-232 communications. these devices minimize power and heat dissipation by consuming only 0.5? supply current from a +3.0v to +5.5v supply voltage. they guarantee true rs-232 per- formance up to a 1.5mbps data rate. the max3180/max3182 feature a three-state ttl/ cmos receiver output that is controlled by an en logic input. the max3181/max3183 feature an invalid out- put that indicates valid rs-232 signals at the receiver input for applications requiring automatic system wake- up. the max3180/max3181 receivers have a standard inverting output, while the max3182/max3183 receivers have a noninverting output. applications diagnostic ports set-top boxes telecommunications digital cameras networking equipment hand-held equipment features ? tiny sot23-5 package ? 0.5? supply current ? 1.5mbps guaranteed data rate ? meet eia/tia-232 and v.28/v.24 specifications down to v cc = +3.0v ? invalid output indicates valid rs-232 signal at receiver input (max3181/max3183) ? three-state ttl/cmos receiver output (max3180/max3182) ? noninverting rs-232 output (max3182/max3183) max3180?ax3183 +3v to +5.5v, 1.5mbps rs-232 receivers in sot23-5 ________________________________________________________________ maxim integrated products 1 19-1444; rev 0; 4/99 ordering information part max3180 euk sot top mark -40? to +85? temp. range pin- package 5 sot23-5 adkf max3181 euk* -40? to +85? 5 sot23-5 adkg max3182 euk -40? to +85? 5 sot23-5 adkh max3183 euk* -40? to +85? 5 sot23-5 adki selector guide pin configurations/functional diagrams max3180 supply current (?) 0.5 invalid output inverting rout 3 noninverting rout max3181 0.5 3 3 max3182 0.5 3 max3183 0.5 3 3 * future product?ontact factory for availability. gnd rin rout 15 5k v cc en (invalid) max3180 max3181 sot23-5 top view 2 34 gnd rin rout 15 5k v cc en (invalid) max3182 max3183 sot23-5 2 34 ( ) are for maxim3181/max3183 only . en input 3 3 part sot23-5 package sot23-5 sot23-5 sot23-5
max3180?ax3183 +3v to +5.5v, 1.5mbps rs-232 receivers in sot23-5 2 _______________________________________________________________________________________ absolute maximum ratings electrical characteristics (v cc = +3.0v to +5.5v, t a = t min to t max , unless otherwise noted. typical values are at v cc = +5.0v and t a = +25?.) (note 1) stresses beyond those listed under ?bsolute maximum ratings?may cause permanent damage to the device. these are stress rating s only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specificatio ns is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. v cc to gnd ..............................................................-0.3v to +6v rin to gnd ..........................................................................?5v en , rout, invalid to gnd ......................-0.3v to (v cc + 0.3v) continuous power dissipation (t a = +70?) sot23-5 (derate 7.1mw/? above +70?)...................571mw operating temperature range ...........................-40? to +85? storage temperature range .............................-65? to +150? lead temperature (soldering, 10sec) .............................+300? i source = 1.0ma v cc = 3.3v or 5v, rin = v cc or gnd, no load negative threshold positive threshold v cc = 5.0v v cc = 3.3v i sink = 1.6ma v cc = 5.0v v cc = 3.3v v cc = 3.3v v cc = 5.0v conditions k 357 r rin input resistance v v cc - v cc - 0.6 0.1 v oh output voltage high v -0.3 0.3 v itol rin threshold to invalid output low v -2.7 v itoh i source = 1.0ma 2.7 v rin threshold to invalid output high mv 300 v hyst input hysteresis v 1.8 2.7 v ith input threshold high 1.5 2.4 v cc - 0.6 v ioh v 0.8 1.5 v itl input threshold low 0.6 1.2 invalid output voltage high v -25 25 v rin input voltage range ? 0.5 5 i cc supply current v 3.0 5.5 v cc supply voltage v 0.4 v iol invalid output voltage low ? ?.01 ?.0 i en leakage current v 0.8 v il logic threshold low 2.0 i sink = 1.6ma v 2.4 v ih logic threshold high units min typ max symbol parameter receiver disabled v 0.4 v ol output voltage low ? ?.05 ?0 i rout output leakage current dc characteristics logic input ( en ) logic output receiver input receiver output
max3180?ax3183 +3v to +5.5v, 1.5mbps rs-232 receivers in sot23-5 _______________________________________________________________________________________ 3 electrical characteristics (continued) (v cc = +3.0v to +5.5v, t a = t min to t max , unless otherwise noted. typical values are at v cc = +5.0v and t a = +25?.) ns 250 t invh receiver positive or negative threshold to invalid high ns 200 t rod receiver output disable time ? 30 t invl receiver positive or negative threshold to invalid low rin to rout; c l = 150pf ? 0.15 conditions t phl receiver propagation delay, high-to-low rin to rout; c l = 150pf ? 0.15 t plh receiver propagation delay, low-to-high | t phl - t plh | , figure 1 units min typ max symbol parameter c l = 50pf ns 200 t roe receiver output enable time ns 50 t rs receiver skew mbps 1.5 maximum data rate timing characteristics typical operating characteristics (v cc = +5v, t a = +25?, unless otherwise noted.) 0 0.2 0.1 0.4 0.3 0.6 0.5 0.7 0 0.5 1.0 1.5 supply current vs. data rate max3180-01 data rate (mbps) supply current (ma) r l = 50k w c l = 100pf v cc = 5v v cc = 3.3v 230 270 250 290 330 310 350 3.0 3.5 5.0 4.5 4.0 5.5 rin to invalid high vs. supply voltage max3180-02 v cc (v) t invh (ns) note 1: specifications are 100% tested at t a = +25?. limits over temperature are guaranteed by design.
max3180?ax3183 +3v to +5.5v, 1.5mbps rs-232 receivers in sot23-5 4 _______________________________________________________________________________________ 25 35 30 45 40 55 50 60 3.0 3.5 4.0 4.5 5.0 5.5 rin to invalid low vs. supply voltage max3180-03 v cc (v) t invl ( m s) typical operating characteristics (continued) (v cc = +5v, t a = +25?, unless otherwise noted.) 5v 0 10v 0 -10v rin rout enable 5v 0 500ns/div max3180 enable assertion to rout response max3180-04 v cc = 5.0v r l = 50k w c l = 100pf pin description max3181 1 en receiver output enable name en max3180 noninverting receiver output function max 3182 pin rout output of the valid input detector C 2 gnd ground gnd 3 rout inverting receiver output 4 rin receiver input rin 5 v cc supply voltage v cc max 3183 invalid gnd rout rin v cc invalid gnd rout rin v cc
detailed description the max3180?ax3183 are eia/tia-232 and v.28/ v.24 communications receivers that convert rs-232 signals to cmos-logic levels. the devices operate on a supply voltage of +3v to +5.5v and have a 1.5mbps data-rate capability. they achieve a 0.5? typical sup- ply current. the max3180/max3182 have a receiver enable control ( en ), while the max3181/max3183 con- tain a signal invalid output ( invalid ). the max3180/ max3181 invert the rout signal relative to rin. the max3182/max3183 are not inverted. the devices come in sot23-5 packages. signal invalid detector if no valid signal levels appear on rin for 30? (typ), invalid goes low. this event typically occurs if the rs- 232 cable is disconnected or if the connected peripher- al transmitter is turned off. invalid goes high when a valid level is applied to the rs-232 receiver input. figure 2 shows the input levels and timing diagram for invalid operation. enable input the max3180/max3182 feature an enable input. drive en high to force rout into a high-impedance state. in this state, the devices ignore incoming rs-232 signals. drive en low for normal operation. power-supply decoupling in most circumstances, a 0.1? v cc bypass capacitor is adequate for power-supply decoupling. connect the bypass capacitor as close to the ic as possible. max3180?ax3183 +3v to +5.5v, 1.5mbps rs-232 receivers in sot23-5 _______________________________________________________________________________________ 5 50% 50% 50% 0 rin 5v rout 50% t plh t phl v ol v oh figure 1. receiver propagation-delay timing valid signals (invalid = 1) invalid signals (invalid = 0) valid signals (invalid = 1) receiver input levels -2.7v -0.3v +2.7v +0.3v 0 indeterminate indeterminate 0 v cc t invl invalid region receiver input voltage (v) invalid output (v) t invh figure 2. input levels and invalid timing chip information transistor count: 41
max3180?ax3183 +3v to +5.5v, 1.5mbps rs-232 receivers in sot23-5 maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim product. no circu it patent licenses are implied. maxim reserves the right to change the circuitry and specifications without notice at any time. 6 _____________________maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 1999 maxim integrated products printed usa is a registered trademark of maxim integrated products. maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim product. no circu it patent licenses are implied. maxim reserves the right to change the circuitry and specifications without notice at any time. 6 _____________________maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 1999 maxim integrated products printed usa is a registered trademark of maxim integrated products. package information sot5l.eps
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