MAX232 +5v-powered, multichannel rs-232 drivers / receivers max 232 is purposed for application in high-performance information processing systems and control devices of wide application. input voltage levels are compatible with standard mos levels. ? output voltage levels are compatible with input levels of k-mos, n-mos and ttl integrated circuits. ? supply voltage : 5v ? low input current: 1.0 ? ; 0.1 ? at = 25 . ? output current 24 ma. ? latching current not less than 450 ma at = 25 ? the transmitter outputs and receiver inputs are protected to 15kv air esd. truth table inputs outputs r in , t in r ovt , t ovt h l l h note - h ? voltage high level; l ? low voltage level max 232 cpe plastic dip max 232cse soi c MAX232cwe soic MAX232cwe for all packages tiger electronic co.,ltd ordering information c 1 + 0 1 v+ 0 2 0 3 c 2 + 0 4 0 5 0 6 0 7 gnd 0 8 1 6 1 5 1 4 1 3 1 2 1 1 1 0 0 9 v c c c 1 - c 2 - t 2 o u t v- r 2 i n r 2 o u t t 2 i n t 1 i n r 1 o u t r 1 i n t 1 o u t
MAX232 table of pin description pin no. symbol pin name 01 c1+ output of external capacitance of positive v oltage multiplier unit 02 v+ output of positive voltage of multiplier unit 03 c1- output of external capacitance of positive v oltage multiplier unit 04 c2+ output of external capacitance of negative v oltage multiplier unit 05 c2- output of external capacitance of negative v oltage multiplier unit 06 v- output of negative voltage of multiplier unit 07 t2 out output of transmitter data (levels rs ? 232) 08 r2 in input of receiver data (levels rs ? 232) 09 r2 out output of receiver data (levels ttl/kmos) 10 t2 in input of transmitter data (levels ttl/kmos) 11 t1 in input of transmitter data (levels ttl/kmos) 12 r1 out output of receiver data (levels ttl/kmos) 13 r1 in input of receiver data (levels rs ? 232) 14 t1 out output of transmitter data (levels rs ? 232) 15 gnd common output 16 v cc supply output of voltage source maximum conditions rate symbol parameter min max unit v cc supply voltage -0.3 6.0 v v+ transmitter high output voltage v cc -0.3 14 v- transmitter low output voltage -0.3 -14 v tin transmitter input voltage -0.3 v+ +0.3 v rin receiver input voltage -30 30 p d dissipated power dip ? package so - package - 842 762 mw i sc output current of transmitter short circuit - continu- ously ma ambient temperature -60 150
MAX232 recommended operating conditions rate symbol parameter min max unit v cc supply voltage 4.5 5.5 v v+ transmitter output high voltage 5.0 - v- transmitter output low voltage -5.0 - v tin transmitter input voltage 0 v v rin receiver input voltage -30 30 i sc transmitter short circuit output current - 60 ma ambient temperature -40 85 0.1 f 0.1 f 16 2 6 14 7 13 8 15 9 12 10 11 5 4 3 1 5v ttl/cmos intput ttl/cmos output rs-232 input rs-232 output 5 5 v+ v- 0.1 f 0.1 f 0.1 f + + c1+ c1- c2+ c2- + + +
MAX232 static parameters rate 25 c -40 c to 85 c symbol parameter test conditions min max min max unit i cc consumption current static v cc =5.0 v v il = 0 v - 10.0 - 14.0 ? ma receiver electrical parameters v h hysteresis voltage v cc =5.0 v 0.2 0.9 0.2 1.0 v v o n on (operation) voltage v o 0.1 v i ol 20 ua - 2.4 - 2.3 v off off (dropout) voltage v o v cc -0.1 v i oh -20 ua 0.8 - 0.9 - v ol output low voltage i ol = 3.2 m v = 4.5 v v ih = 2.4 v - 0.3 - 0.4 v oh output high voltage i oh = -1.0 ma v = 4.5 v v il = 0.8 v 3.6 - 3.5 - r i input resistance v = 5.0 v 3.0 7.0 3.0 7.0 kohm transmitter electrical parameters v ol output low voltage v = 4.5 v v ih = 2.0 v r l = 3.0 kohm - -5.2 - -5.0 v v oh output high voltage v = 4.5 v v il = 0.8 v r l = 3.0 kohm 5.2 - 5.0 - i il input low current v =5.5 v v il = 0 v - -1.0 - -10.0 ua i ih input high current v =5.5 v v ih = v 1.0 10.0 sr speed of output front change v =5.0 v l =50 - 1000 pf r l = 3.0 - 7.0 kohm 3.0 30 2.7 27 v/ ? r output resistance v = v+ = v- = 0 v v o = 2 v 350 - 300 - ohm i sc short circuit output current v =5.5 v v o = 0 v v i = v v i = 0 v -50 50 -60 60 ma st speed of information transmission v =4.5 v l = 1000 pf r l = 3.0 kohm t w = 7us (for extreme - t w = 8us) 140 - 120 - kbps
MAX232 dynamic parameters rate 25 c from -40 c to 85 c symbol parameter test conditions min max min max unit t phlr (t plhr ) signal propagation delay time when switching on (off) v = 4.5 v l = 150 pf v il = 0 v v ih = 3.0 v t lh = t hl 10 ns - 9.7 - 10 us t phlt (t plht ) signal propagation delay time when switching on (off) v = 4.5 v l = 2500 pf v il = 0 v v ih = 3.0 v r l = 3 kohm t lh = t hl 10 ns 5.0 ? 6.0 ? capacitance symbol parameter v cc , rate unit c in input capacitance 5.0 9.0 pf c pd dynamic capacitance 90 timing diagram when measuring ic dynamic parameters +3 v t plhr t phlr rin 1.5 v 0 v v ol v oh rout 0.5vcc 0.5vcc 1.5 v figure 3
MAX232 +3 v t plht t phlt tin 1.5 v 1.5 v 0 v v ol v oh tout 1.5 v 1.5 v figure 4 shl t tin tout +3 v -3 v slh t -3 v +3 v figure 5 t out t in control strobe t w t w t w t w figure 6
MAX232 n suffix plastic dip (ms - 001bb) symbol min max a 18.67 19.69 b 6.1 7.11 c 5.33 d 0.36 0.56 f 1.14 1.78 g h j 0 10 k 2.92 3.81 notes: l 7.62 8.26 1. dimensions ?a?, ?b? do not include mold flash or pr otrusions. m 0.2 0.36 maximum mold flash or protrusions 0.25 mm (0.010 ) per side. n 0.38 d suffix soic (ms - 012ac) symbol min max a 9.8 10 b 3.8 4 c 1.35 1.75 d 0.33 0.51 f 0.4 1.27 g h j 0 8 notes: k 0.1 0.25 1. dimensions a and b do not include mold flash or pro trusion. m 0.19 0.25 2. maximum mold flash or protrusion 0.15 mm (0.006) pe r side p 5.8 6.2 for a; for b ? 0.25 mm (0.010) per side. r 0.25 0.5 5.72 2.54 7.62 1.27 dimension, mm dimension, mm a b h c k c m j f m p g d r x 45 seating plane 0.25 (0.010) m t -t- 1 16 8 9 l h m j a b f g d seating plane n k 0.25 (0.010) m t -t- c 1 16 8 9
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