rev.2.00 mar 30, 2006 page 1 of 6 HD74HC679 12-bit address comparator rej03d0640-0200 (previous ade-205-526) rev.2.00 mar 30, 2006 description the HD74HC679 address comparator simplifies addressing of memory boards and/or other peripheral devices. the four p inputs are normally hard wired with a preprogrammed address. an internal decoder determines what input information applied to the 12 a inputs must be low or high to cause a low state at the output (y). for example, a positive-logic bit combination of 0111 (decimal 7) at the p input determines that inputs a 1 through a 7 must be low and that inputs a 8 through a 12 must be high to cause the output to go low. equality of the address amplified at the a inputs to the preprogrammed address is indicated by the output being low. the HD74HC679 features and enable input ( g ). when g is low, the device is enabled. when g is high, the device is disabled and the output is high regardless of the a and p inputs. features ? high speed operation: t pd (a to y) = 18 ns typ (c l = 50 pf) ? high output current: fanout of 10 lsttl loads ? wide operating voltage: v cc = 2 to 6 v ? low input current: 1 a max ? low quiescent supply current: i cc (static) = 4 a max (ta = 25 c) ? ordering information part name package type package code (previous code) package abbreviation taping abbreviation (quantity) HD74HC679rpel sop-20 pin (jedec) prsp0020dc-a (fp-20dbv) rp el (1,000 pcs/reel)
HD74HC679 rev.2.00 mar 30, 2006 page 2 of 6 function table inputs g p 3 p 2 p 1 p 0 a 1 a 2 a 3 a 4 a 5 a 6 a 7 a 8 a 9 a 10 a 11 a 12 output y l l l l l h h h h h h h h h h h h l l l l l h l h h h h h h h h h h h l l l l h l l l h h h h h h h h h h l l l l h h l l l h h h h h h h h h l l l h l l l l l l h h h h h h h h l l l h l h l l l l l h h h h h h h l l l h h l l l l l l l h h h h h h l l l h h h l l l l l l l h h h h h l l h l l l l l l l l l l l h h h h l l h l l h l l l l l l l l l h h h l l h l h l l l l l l l l l l l h h l l h l h h l l l l l l l l l l l h l l h h l l l l l l l l l l l l l l l l h h l h x x x x x x x x x x x x h l h h h l x x x x x x x x x x x x h l h h h h l l l l l l l l l l l l l l all other combinations h h any combination h h : high level l : low level x : irrelevant pin arrangement 1 2 3 4 5 6 7 8 9 10 a 1 a 2 a 3 a 4 a 5 a 6 a 7 a 8 a 9 gnd v cc g y p 3 p 2 p 1 p 0 a 12 a 11 a 10 20 19 18 17 16 15 14 13 12 11 (top view)
HD74HC679 rev.2.00 mar 30, 2006 page 3 of 6 logic diagram y a 1 a 5 a 7 a 6 a 3 a 9 a 8 a 11 a 12 p 3 p 2 p 1 p 0 g a 10 a 2 a 4 absolute maximum ratings item symbol ratings unit supply voltage range v cc ?0.5 to 7.0 v input / output voltage v in , v out ?0.5 to v cc +0.5 v input / output diode current i ik , i ok 20 ma output current i out 25 ma v cc , gnd current i cc or i gnd 50 ma power dissipation p t 500 mw storage temperature tstg ?65 to +150 c note: the absolute maximum ratings are values, which must not individually be exceeded, and furthermore, no two of which may be realized at the same time. recommended operating conditions item symbol ratings unit conditions supply voltage v cc 2 to 6 v input / output voltage v in , v out 0 to v cc v operating temperature ta ?40 to 85 c 0 to 1000 v cc = 2.0 v 0 to 500 v cc = 4.5 v input rise / fall time *1 t r , t f 0 to 400 ns v cc = 6.0 v note: 1. this item guarantees maximum limit when one input switches. waveform: refer to test circuit of switching characteristics.
HD74HC679 rev.2.00 mar 30, 2006 page 4 of 6 electrical characteristics ta = 25 c ta = ?40 to+85 c item symbol v cc (v) min typ max min max unit test conditions 2.0 1.5 ? ? 1.5 ? 4.5 3.15 ? ? 3.15 ? v ih 6.0 4.2 ? ? 4.2 ? v 2.0 ? ? 0.5 ? 0.5 4.5 ? ? 1.35 ? 1.35 input voltage v il 6.0 ? ? 1.8 ? 1.8 v 2.0 1.9 2.0 ? 1.9 ? 4.5 4.4 4.5 ? 4.4 ? 6.0 5.9 6.0 ? 5.9 ? i oh = ?20 a 4.5 4.18 ? ? 4.13 ? i oh = ?4 ma v oh 6.0 5.68 ? ? 5.63 ? v vin = v ih or v il i oh = ?5.2 ma 2.0 ? 0.0 0.1 ? 0.1 4.5 ? 0.0 0.1 ? 0.1 6.0 ? 0.0 0.1 ? 0.1 i ol = 20 a 4.5 ? ? 0.26 ? 0.33 i ol = 4 ma output voltage v ol 6.0 ? ? 0.26 ? 0.33 v vin = v ih or v il i ol = 5.2 ma input current iin 6.0 ? ? 0.1 ? 1.0 a vin = v cc or gnd quiescent supply current i cc 6.0 ? ? 4.0 ? 40 a vin = v cc or gnd, iout = 0 a switching characteristics (c l = 50 pf, input t r = t f = 6 ns) ta = 25 c ta = ?40 to +85 c item symbol v cc (v) min typ max min max unit test conditions 2.0 ? ? 310 ? 390 4.5 ? 27 62 ? 78 t plh t phl 6.0 ? ? 52 ? 66 ns p to y 2.0 ? ? 180 ? 225 4.5 ? 18 36 ? 45 t plh t phl 6.0 ? ? 31 ? 38 ns a to y 2.0 ? ? 125 ? 155 4.5 ? 14 25 ? 31 propagation delay time t plh t phl 6.0 ? ? 21 ? 26 ns g to y 2.0 ? ? 75 ? 95 4.5 ? 5 15 ? 19 output rise/fall time t tlh t thl 6.0 ? ? 13 ? 16 ns input capacitance cin ? ? 5 10 ? 10 pf
HD74HC679 rev.2.00 mar 30, 2006 page 5 of 6 test circuit v cc c = 50 p f v cc l output p 3 y g a 1 a 12 p 0 note : 1. c l includes probe and jig capacitance. see function table z out = 50 ? input pulse generator waveforms p or a 0 v v cc t f 50% t r y v ol v oh g 0 v v cc y v ol v oh 50% 50% 50% 50% 90% 10% t thl 50% 90% t tlh 50% t phl 50% t plh t plh t phl ? waveform ? 1 note : 1. input waveform : prr 1 mhz, duty cycle 50%, t r 6 ns, t f 6 ns waveform ? 2 10% 90% 10% 90% 10% 90% 10% t thl 90% t tlh
HD74HC679 rev.2.00 mar 30, 2006 page 6 of 6 package dimensions 0.935 0.15 1.27 10.00 10.65 0.40 0.34 a 1 13.2 max nom min dimension in millimeters symbol reference 2.65 1.27 0.70 0.40 7.50 0.30 0.20 0.10 0.46 0.30 0.25 0.20 10.40 8 0 0.12 1.45 12.80 l 1 z h e y x c b p a 2 e d b 1 c 1 e e l a 11 20 10 f *1 *2 *3 p m x y 1 e index mark e h d z b a terminal cross section ( ni/pd/au plating ) p c b 1 1 detail f l l a note) 1. dimensions"*1 (nom)"and"*2" @ do not include mold flash. 2. dimension"*3"does not @ include trim offset. p-sop20-7.5x12.8-1.27 0.52g mass[typ.] fp-20dbv prsp0020dc-a renesas code jeita package code previous code
keep safety first in your circuit designs! 1. renesas technology corp. puts the maximum effort into making semiconductor products better and more reliable, but there is a lways the possibility that trouble may occur with them. trouble with semiconductors may lead to personal injury, fire or property damage. remember to give due consideration to safety when making your circuit designs, with appropriate measures such as (i) placeme nt of substitutive, auxiliary circuits, (ii) use of nonflammable material or (iii) prevention against any malfunction or mishap. notes regarding these materials 1. these materials are intended as a reference to assist our customers in the selection of the renesas technology corp. product best suited to the customer's application; they do not convey any license under any intellectual property rights, or any other rights, belonging to renesas t echnology corp. or a third party. 2. renesas technology corp. assumes no responsibility for any damage, or infringement of any third-party's rights, originating in the use of any product data, diagrams, charts, programs, algorithms, or circuit application examples contained in these materials. 3. all information contained in these materials, including product data, diagrams, charts, programs and algorithms represents i nformation on products at the time of publication of these materials, and are subject to change by renesas technology corp. without notice due to product improvement s or other reasons. it is therefore recommended that customers contact renesas technology corp. or an authorized renesas technology corp. product distrib utor for the latest product information before purchasing a product listed herein. the information described here may contain technical inaccuracies or typographical errors. renesas technology corp. assumes no responsibility for any damage, liability, or other loss rising from these inaccuracies o r errors. please also pay attention to information published by renesas technology corp. by various means, including the renesas techn ology corp. semiconductor home page (http://www.renesas.com). 4. when using any or all of the information contained in these materials, including product data, diagrams, charts, programs, a nd algorithms, please be sure to evaluate all information as a total system before making a final decision on the applicability of the information and products. renesas technology corp. assumes no responsibility for any damage, liability or other loss resulting from the information contained herein. 5. renesas technology corp. semiconductors are not designed or manufactured for use in a device or system that is used under ci rcumstances in which human life is potentially at stake. please contact renesas technology corp. or an authorized renesas technology corp. product distributor when considering the use of a product contained herein for any specific purposes, such as apparatus or systems for transportation, vehicular, medical, aerosp ace, nuclear, or undersea repeater use. 6. the prior written approval of renesas technology corp. is necessary to reprint or reproduce in whole or in part these materi als. 7. if these products or technologies are subject to the japanese export control restrictions, they must be exported under a lic ense from the japanese government and cannot be imported into a country other than the approved destination. any diversion or reexport contrary to the export control laws and regulations of japan and/or the country of destination is prohibited. 8. please contact renesas technology corp. for further details on these materials or the products contained therein. sales strategic planning div. nippon bldg., 2-6-2, ohte-machi, chiyoda-ku, tokyo 100-0004, japan http://www.renesas.com refer to " http://www.renesas.com/en/network " for the latest and detailed information. renesas technology america, inc. 450 holger way, san jose, ca 95134-1368, u.s.a tel: <1> (408) 382-7500, fax: <1> (408) 382-7501 renesas technology europe limited dukes meadow, millboard road, bourne end, buckinghamshire, sl8 5fh, u.k. tel: <44> (1628) 585-100, fax: <44> (1628) 585-900 renesas technology (shanghai) co., ltd. unit 204, 205, aziacenter, no.1233 lujiazui ring rd, pudong district, shanghai, china 200120 tel: <86> (21) 5877-1818, fax: <86> (21) 6887-7898 renesas technology hong kong ltd. 7th floor, north tower, world finance centre, harbour city, 1 canton road, tsimshatsui, kowloon, hong kong tel: <852> 2265-6688, fax: <852> 2730-6071 renesas technology taiwan co., ltd. 10th floor, no.99, fushing north road, taipei, taiwan tel: <886> (2) 2715-2888, fax: <886> (2) 2713-2999 renesas technology singapore pte. ltd. 1 harbour front avenue, #06-10, keppel bay tower, singapore 098632 tel: <65> 6213-0200, fax: <65> 6278-8001 renesas technology korea co., ltd. kukje center bldg. 18th fl., 191, 2-ka, hangang-ro, yongsan-ku, seoul 140-702, korea tel: <82> (2) 796-3115, fax: <82> (2) 796-2145 renesas technology malaysia sdn. bhd unit 906, block b, menara amcorp, amcorp trade centre, no.18, jalan persiaran barat, 46050 petaling jaya, selangor darul ehsan, malaysia tel: <603> 7955-9390, fax: <603> 7955-9510 renesas sales offices ? 200 6. re nesas technology corp ., all rights reser v ed. printed in ja pan. colophon .6.0
|
