2002 shor t for m catalog i-57 ?copyright 2001 sipex corporation i description the sp332 is a monolithic device that contains both rs-232 and rs- 485 line drivers and r eceivers. the configuration of the sp332 can be changed at any time by changing the logic state of two contr ol input pins. the device also includes a loop back function which inter nally connects driver outputs to r eceiver inputs for a chip self test. a sipex- patented char ge pump (5,306,954) allows +5v -only operation. sp332 rs-232/rs-485 multi-mode serial t ransceiver featur es n +5v only single supply operation n 4 drivers, 4 receivers rs-232 n 2 drivers, 2 receivers rs-485 n loop back function for self t est n 28 pin soic packaging 1 2 3 4 5 6 7 8 9 10 1 1 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 ti4 sel b tx4 tx3 vcc tx1 tx2 gnd c1+ v+ c2+ c1- c2- v - sp332 ti3 ti2 ti1 sd sel a lb rx4 rx3 rx2 rx1 ri4 ri3 ri2 ri1 typical application cir cuits +5v gnd ttl/cmos ttl/cmos ttl/cmos ttl/cmos ttl/cmos 0.1 m f 0.1 m f vcc v+ v - ttl/cmos shut down rs-232 ttl/cmos ttl/cmos ttl/cmos ttl/cmos t1 t2 t3 t4 tx1 tx2 tx3 tx4 ti1 ti2 ti3 ti4 ri1 ri2 ri3 ri4 rx1 rx2 rx3 rx4 1 3 4 5 6 7 8 10 0.1 m f 0.1 m f c1+ c1- c2+ c2- 9 1 1 12 13 14 15 16 17 18 19 20 21 22 23 sel b 2 sel a 24 25 26 27 28 r1 r2 r3 r4 5k w 5k w 5k w 5k w 400k w vcc 400k w vcc 400k w vcc 400k w vcc rs-232 rs-232 rs-232 rs-232 rs-232 rs-232 rs-232 0v 0v l b or dering infor mation - please consult the factor y for pricing and availability on a t ape-on-reel option. par t number t emper atur e range package t ype sp332ct 0?c to +70?c 28-pin soic sp332et -40?c to +85?c 28-pin soic sel a ttl/cmos ttl/cmos ttl/cmos 0.1 m f 0.1 m f c1+ c1- c2+ c2- 1 sel b 2 +5v vcc 5 gnd 8 9 1 1 12 13 19 20 22 24 26 27 28 ttl/cmos ttl/cmos ttl/cmos ttl/cmos t1 t3 r1 rs-485 rs-485 rs-485 ttl/cmos 0.1 m f 0.1 m f v+ v - ttl/cmos shut down rs-485 rs-485 rs-485 4 6 7 10 14 15 16 23 25 3 ri1 ri2 tx3 tx4 tx1 tx2 ti1 ti2 ti3 ti4 rx1 rx2 ttl/cmos 21 r3 17 18 ri4 ri3 rx3 rx4 15k w 15k w 15k w 15k w 400k w vcc 400k w vcc rs-485 rs-485 +5v +5v l b rs-232 mode rs-485 mode
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