View UM202EEPE_9023357.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

___________________________________________ _____________________________ http://www.union - ic.com rev.0 5 nov .20 1 4 1 / 11 um2 0 2eexe high esd - protected, fail - safe, single supply rs - 232 transceivers um2 0 2e es e sop16 UM202EEPE dip16 um202eeue tssop16 general description the um2 0 2eexe series are low power single supply rs232 interface. the device consists of two line drivers, two line rec eivers, and dual charge pump circuit. the device meets the requirements of tia/eia - 232 standard and provides the electrical interface between an asynchronous communication controller and the serial - port connector. the on chip charge pump and four small ext ernal capacitors act as onboard dc to dc converter, allow chip operated from single 5v supply, eliminating the need for 10v power supplies, reduce cost and board space. the device operates at data signaling rates over 250 kbps. the slew rate of driver is s et internally less than 30v/ s and the receivers feature internal noise filtering, eliminating the need for external slew rate and filter capacitors for reliable operation. the driver inputs and receiver outputs are ttl and cmos compatible. um2 0 2eexe comes in 16 pin dip, sop and tsso p packages, operating over the commercial and industrial temperature ranges. the esd tolerance has been upgraded on these devices to over 15 k v for both human body model and iec61000 - 4 - 2 air discharge method, without latch - up. the device operates with fou r 0.1 f capacitors, reduce system cost and board space. applications features ? notebook and palmtop computers ? battery - powered equipment ? hand - held equipment ? pos terminal ? esd protection for rs - 232 bus pins up to 15kv human body model ? single +5v p ower s upply ? low p ower, i cc 15 ma m aximum ? operates up to 250 k b p s ? receiver noise filter ? latch - up performance exceeds 200ma ordering information p art number t emp . r ange marking code package type um2 0 2e e se - 40c to +85c um202eese sop16 um2 0 2e e pe - 40c to +8 5c UM202EEPE dip16 um2 0 2e e ue - 40c to +85c um202eeue tssop16
___________________________________________ _____________________________ http://www.union - ic.com rev.0 5 nov .20 1 4 2 / 11 um2 0 2eexe absolute maximum ratings (note 1) symbol p arameter value unit v cc supply voltage on v cc - 0.3 to +6 v v + voltage on v + (v cc - 0.3) to +14 v v - voltage on v - - 14 to +0.3 v t_in voltage o n t_in - 0.3 to ( v cc + 0.3) v r_in voltage on r_in 30 v t_out voltage on t_out (v - - 0.3) to (v + + 0.3) v r_out voltage on r_out - 0.3 to (v cc + 0.3) v short - circuit duration, t_out continuous p d continuous power dissipation at t a = 70 c sop16 696 mw dip16 842 tssop16 754.7 t a operating temperature range - 40 to +85 c t stg storage temperature range - 6 5 to + 1 65 c t l maximum lead temperature for soldering 10 seconds +300 c note 1: stresses beyond those listed under absolute maximum ratin gs may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. exposure to absolu te maximum rating conditions for extended periods may affect device reliability.
___________________________________________ _____________________________ http://www.union - ic.com rev.0 5 nov .20 1 4 3 / 11 um2 0 2eexe electrical characteristics (v cc =+5v10%, c1 - c4=0.1uf, t a =t min to t max , unless otherwise noted. typical values are at t a =25 ) p arameter s ymbol c onditions m in t yp m ax u nit dc characteristics v cc supply current i cc no load, t a = +25c 10 15 ma logic input leakage current t_in = 0v to v cc 10 il t_in 0.8 v input threshold high v ih t_in 2.0 v output voltage low v ol r_out; i out = 3.2ma 0.4 v output voltage high v oh r_out; i out = - 1.0ma 3.5 v cc - 0.4 v output leakage current 0v rout cc 0.05 10 eia/tia - 232e receiver inputs input voltage range - 30 30 v input threshold low t a = +25c, v cc = 5v n ormal operation 0.8 1.2 v input threshold high t a = +25c, v cc = 5v normal operation 1.7 2.4 v input hysteresis v cc = 5v 0.2 0.5 1.0 v input resistance t a = +25c, v cc = 5v 3 5 7 k eia/tia - 232e transmitter outputs output voltage swing all drivers loaded with 3k cc = v+ = v - = 0v, v out = 2v 300 cc , gnd or other txd pin 7 0 ma timing characteristics maximum data rate r l = 3k l = 50pf to 1000pf, one transmitter switching 250 kbps receiver propagation delay t plhr , t phlr c l = 150pf all parts, normal operation 0.3 plht , t phlt r l = 3k l = 2500pf, all transmitters loaded 1.2 a = +25c, v cc = 5v, r l = 3k l = 50pf to 1000pf, measured from - 3v to +3v or +3v to - 3v, figure 1 20 30 v/ esd performance transmitter outputs, receiver inputs esd - protection voltage human body mod el 15 kv iec61000 - 4 - 2, contact discharge 8 iec61000 - 4 - 2, air - gap discharge 15
___________________________________________ _____________________________ http://www.union - ic.com rev.0 5 nov .20 1 4 4 / 11 um2 0 2eexe pin configurations sop16/dip16/tssop16 pin descriptions p in no. pin n ame f unction sop/dip/tssop 1,3 c1 + , c1 - terminals for positive charge pump capacitor 2 v + +2v cc voltage generated by the charge pump 4,5 c2 + , c2 - terminals for negative charge pump capacitor 6 v - - 2v cc voltage generated by the charge pump 7,14 t_out rs - 232 driver outputs 8,13 r_in rs - 232 receiver inputs 9,12 r_out rs - 232 receiver outputs 10,11 t_in rs - 232 driver inputs 15 gnd ground 16 v cc +4. 5 v to +5.5v supply voltage input detailed description the um2 0 2eexe consists of three sections: charge - pump voltage converters, drivers, and receivers. these e versions provide extra protection against esd. they survive 15kv discharges to the rs - 232 inputs and outputs, tested using the human body model. when tested according to iec 6 1000 - 4 - 2, they survive 8kv contact - discharges and 15kv air - gap discharges. the rugged e versions are intended for use in harsh environments or applications where the rs - 232 connection is frequently changed. the um2 0 2eexe devices have internal charge pump voltage converters which allow them to operate from a single +5v supply. the charge pumps will operate with polarized or non - polarized capacitors ranging from 0.1 to 10 f and will generate the 9v needed to generate the rs - 232 output levels. rs - 232 drivers the drivers are inverting trans mitters, which accept ttl or cmos inputs and output rs - 232 signals with an inverted sense relative to the input logic levels. typically the rs - 232 output voltage swing is 9v. even under worst case loading conditions of 3k and 2500pf, the output is u m 2 0 2 e
___________________________________________ _____________________________ http://www.union - ic.com rev.0 5 nov .20 1 4 5 / 11 um2 0 2eexe guaran teed to be 5v, which is consistent with the rs - 232 standard specifications. the transmitter outputs are protected against infinite short - circuits to ground without degradation in reliability. the instantaneous slew rate of the transmitter output is intern ally limited to a maximum of 30v/ s in order to meet the rs - 232 st andard . the smooth transition of the loaded output from v ol to v oh clearly meets the monotonicity requirements of the rs - 232 standard. rs - 232 receivers the receivers convert rs - 232 input signals to inverted ttl signals. the input thresholds are 0.8v minimum and 2.4v maximum, again well within the 3v rs - 232 requirements. the receiver inputs are also protected against voltage up to 30 v. a 5k pull down resistor to ground will commit the output of the receiver to a high stat e when the pin is float . in actual system applications, it is quite possible for signals to be applied to the receiver inputs before power is applied the receiver circuitry. this occurs, for example, when a pc user attempts to print, only to realize the pr inter wasnt turned on. in this case an rs - 232 signal from the pc will appear on the receiver input at the printer. when the printer power is turned on, the receiver will operate normally. all of these enhanced devices are fully protected. esd protection um2 0 2eexe devices have standard esd protection structures incorporated on the pins to protect against electrostatic discharges encountered during assembly and handling. in addition, the rs232 bus pins (driver outputs and receiver input) of these devices have an extra level of esd protection. advanced esd structures were designed to successfully protect these pins against esd discharge of 15kv human body model when powered down or up .
___________________________________________ _____________________________ http://www.union - ic.com rev.0 5 nov .20 1 4 6 / 11 um2 0 2eexe test circuits figure 1 + 5 v 0 . 1 f 0 . 1 f 0 . 1 f 0 . 1 f 0 . 1 f v c c c 1 + c 1 - c 2 + c 2 - 4 0 0 k t _ r _ t _ o u t t _ i n r _ i n r _ o u t v c c v + v - 5 k r l c l u m 2 0 2 e + + + + + t r a n s m i t t e r t e s t c i r c u i t p u l s e g e n e r a t o r + 5 v 0 . 1 f 0 . 1 f 0 . 1 f 0 . 1 f 0 . 1 f v c c c 1 + c 1 - c 2 + c 2 - 4 0 0 k t _ r _ t _ o u t t _ i n r _ i n r _ o u t v c c v + v - 5 k u m 2 0 2 e + + + + + r e c e i v e r t e s t c i r c u i t p u l s e g e n e r a t o r c l
___________________________________________ _____________________________ http://www.union - ic.com rev.0 5 nov .20 1 4 7 / 11 um2 0 2eexe typica l operating circuits figure 2 applications information capacitor selection the capacitor type used for c1 C c4 is not critical for proper operation. the um2 0 2eexe, require 0.1 f capacitors, although in all cases capacitors up to 10 f can be used without harm. ceramic dielectrics are suggested for the 0.1 f capacitors. when using the minimum recommended capacitor values, make sure the capacitance value does not degrade excessively as the operating temperature varies. if in doub t, use capacitors with a larger (e.g., 2x) nominal value. the capacitors effective series resistance (esr), which usually rises at low temperatures, influences the amount of ripple on v + and v - . use larger capacitors (up to 10 f) to reduce the output impe dance at v + and v - . bypass v cc to ground with at least 0.1 f capacitor . in applications sensitive to power - supply noise generated by the charge pumps, decouple v cc to ground with a capacitor the same size as (or larger than) the charge pump capacitors (c1 C c4). v+ and v - as power supplies a small amount of power can be drawn from v + and v - , although this will reduce both driver output swing and noise margins. increasing the value of the charge - pump capacitors (up to 10 f) helps maintain performance when po wer is drawn from v + or v - . driving multiple receivers each transmitter is designed to drive a single receiver. transmitters can be paralleled to drive multiple receivers. high data rates these transceivers maintain the rs - 232 5.0v minimum driver outpu t voltages at data rates of over 250 kbps. + 5 v c 5 c 3 c 1 c 2 c 4 + 5 v c 1 + c 1 - c 2 + c 2 - 4 0 0 k t 1 o u t t 1 i n r 1 i n r 1 o u t v c c v + v - 5 k + + + + + + 5 v t o + 1 0 v v o l t a g e d o u b l e + 1 0 v t o - 1 0 v v o l t a g e i n v e r t e r + 5 v 4 0 0 k t 2 o u t t 2 i n r 2 i n r 2 o u t 5 k g n d 1 6 1 3 4 5 2 6 1 1 1 0 1 4 7 1 2 9 1 3 8 t t l / c m o s i n p u t s t t l / c m o s o u t p u t s r s - 2 3 2 o u t p u t s r s - 2 3 2 i n p u t s 1 5
___________________________________________ _____________________________ http://www.union - ic.com rev.0 5 nov .20 1 4 8 / 11 um2 0 2eexe package information um202eese sop16 outline drawing dimensions symbol millimeters inches min max min max a 1.35 1.75 0.053 0.069 a1 0.10 0.25 0.004 0.010 b 0.35 0.49 0.014 0.0 19 c 0.19 0.25 0.007 0.010 e 3.80 4.00 0.150 0.157 d 9.80 10.00 0.386 0.394 e 1.27 0.050 h 5.80 6.20 0.228 0.244 l 0.40 1.27 0.016 0.050 land pattern notes: 1. compound dimension: 9.9 3.9 . 2. unit: mm . 3. gene ral tolerance 0.0 5 mm unless otherwise specified . 4. the layout is just for reference. tape and reel orientation d e h b e l c a 1 a 1 . 2 7 6 . 6 0 . 5 1 . 5 u m 2 0 2 e e s e x x
___________________________________________ _____________________________ http://www.union - ic.com rev.0 5 nov .20 1 4 9 / 11 um2 0 2eexe UM202EEPE dip16 outline drawing dimensions symbol millimeters inches min m ax min max a - 5.08 - 0.200 a1 0.38 - 0.015 - a2 3.18 4.45 0.125 0.175 a3 1.40 2.03 0.055 0.080 b 0.41 0.56 0.016 0.022 b1 1.14 1.65 0.045 0.065 c 0.20 0.30 0.008 0.012 d 18.92 19.43 0.745 0765 d1 0.13 2.03 0.005 0.080 e 7.62 8.26 0.300 0.325 e1 6.10 7.87 0.240 0.310 e 2.54 - 0.100 - ea 7.62 - 0.300 - eb - 10.16 - 0.400 l 2.92 3.81 0.115 0.150 tape and reel orientation d d 1 a 3 a 2 a 1 a l e b b 1 e 1 e e a e b c u m 2 0 2 e e p e x x
___________________________________________ _____________________________ http://www.union - ic.com rev.0 5 nov .20 1 4 10 / 11 um2 0 2eexe um202eeue tssop16 outline drawing dimensions symbol m illimeters i n ches min max min max a - 1.20 - 0.047 a1 0.05 0.15 0.002 0.006 a2 0.90 1.05 0.035 0.041 a3 0.34 0.54 0.013 0.021 d 4.86 5.06 0.191 0.199 e 6.20 6.60 0.244 0.260 e1 4.30 4.50 0.169 0.177 b 0.20 0.28 0.008 0.011 e 0.65bsc 0.026 bsc land pattern notes: 1. compound dimension: 4.96 4.4 . 2. unit: mm . 3. general tolerance 0.0 5 mm unless otherwise specified . 4. the layout is just for reference. tape and reel orientation 0 . 3 0 . 6 5 7 . 0 1 . 5 u m 2 0 2 e e u e x x
___________________________________________ _____________________________ http://www.union - ic.com rev.0 5 nov .20 1 4 11 / 11 um2 0 2eexe importan t notice the information in this document has been carefully reviewed and is believed to be accurate. nonetheless, this document is subject to change without notice. union assumes no responsibility for any inaccuracies that may be contained in this docum ent, and makes no commitment to update or to keep current the contained information, or to notify a person or organization of any update. union reserves the right to make changes, at any time, in order to improve reliability, function or design and to atte mpt to supply the best product possible. union semiconductor, inc add : unit 606, no.570 shengxia r oa d, shanghai 2012 1 0 tel: 021 - 5109 3966 fax: 021 - 51026018 website: www.union - ic.com

▲Up To Search▲

Price & Availability of UM202EEPE

	To Download UM202EEPE Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .