rev.2.00 jan 31, 2006 page 1 of 5 hd74hc279 octal d-type flip-flops (with clear) rej03d0605?0200 (previous ade-205-483) rev.2.00 jan 31, 2006 description the latch is ideally suited for use as temporary stage for binary information processing and input/output units. when either s or r is low, output is dependent on r input. when both inputs are high, output is stored before the indicated steady-state input conditions were established. and when both inputs are low, output is high, but this high level are uncontinuance, if either of input goes high. features ? high speed operation: t pd ( s to q) = 10 ns typ (c l = 50 pf) ? high output current: fa nout 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) = 2 a max (ta = 25c) ? ordering information part name package type package code (previous code) package abbreviation taping abbreviation (quantity) HD74HC279FPEL sop-16 pin (jeita) prsp0016dh-b (fp-16dav) fp el (2,000 pcs/reel) hd74hc279rpel sop-16 pin (jedec) prsp0016dg-a (fp-16dnv) rp el (2,500 pcs/reel) note: please consult the sales office for the above package availability. function table inputs output s * 2 r q h h q 0 l h h h l l l l h* 1 h : high level l : low level q 0 : the level of q respectively, be fore the indicated steady-state inpu t conditions were established. notes: 1. it is unpredictable, if s or r goes high. 2. as to latches which has two s inputs. h: both of s inputs are high. l: either or both of s inputs are low.
hd74hc279 rev.2.00 jan 31, 2006 page 2 of 5 pin arrangement 1 2 3 4 5 6 7 8 1r 1s1 1s2 1q 2r 2s 2q gnd 16 15 14 13 12 11 10 9 (top view) v cc 4s 4r 4q 3s2 3s1 3r 3q logic diagram r s 1 s 2 r q q s 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 o 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.
hd74hc279 rev.2.00 jan 31, 2006 page 3 of 5 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 notes: 1. this item guarantees maxi mum limit when one input switches. waveform: refer to test circuit of switching characteristics. electrical characteristics ta = 25c ta = ?40 to+85c 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 ? ? 2.0 ? 20 a vin = v cc or gnd, iout = 0 a switching characteristics (c l = 50 pf, input t r = t f = 6 ns) ta = 25c ta = ?40 to +85c item symbol v cc (v) min typ max min max unit test conditions 2.0 ? ? 130 ? 165 4.5 ? 10 26 ? 33 t plh t phl 6.0 ? ? 22 ? 28 ns s to q 2.0 ? ? 120 ? 150 4.5 ? 12 24 ? 30 propagation delay time t phl 6.0 ? ? 20 ? 26 ns r to q 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
hd74hc279 rev.2.00 jan 31, 2006 page 4 of 5 test circuit l * c includes the probe and fig capacitance. note: measurement point c l waveforms s q r v cc 50% v ol v oh 0 v v cc 0 v 1. input pulse : prr 1 mhz, zo = 50 ?, t r 6 ns, t f 6 ns note : ? waveform 50% t thl 90% 10% t plh t r 90% 10% t f 90% 10% t r 90% 10% t f 90% 10% 50% 50% 50% 50% t phl t phl t tlh 90% 10%
hd74hc279 rev.2.00 jan 31, 2006 page 5 of 5 package dimensions 0.80 0.15 1.27 7.50 8.00 0.40 0.34 p a 1 10.5 fp-16dav renesas code jeita package code previous code max nom min dimension in millimeters symbol reference 2.20 0.90 0.70 0.50 5.50 0.20 0.10 0.00 0.46 0.25 0.20 0.15 7.80 8 0 0.12 1.15 10.06 0.24g mass[typ.] 1 e 1 1 2 l z h y x c b a e d b c e l a p-sop16-5.5x10.06-1.27 prsp0016dh-b *1 *2 e 8 1 16 9 xm p *3 y f index mark b d e h z 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. e 0.635 0.15 1.27 5.80 6.20 0.40 0.34 p a 1 10.30 fp-16dnv renesas code jeita package code previous code max nom min dimension in millimeters symbol reference 1.75 1.27 0.60 0.40 3.95 0.25 0.14 0.10 0.46 0.25 0.20 0.15 6.10 8 0 0.25 1.08 9.90 0.15g mass[typ.] 1 e 1 1 2 l z h y x c b a e d b c e e l a p-sop16-3.95x9.9-1.27 prsp0016dg-a index mark e 1 y xm p *3 *2 *1 f 8 9 16 e h d a zb terminal cross section ( ni/pd/au plating ) p b c detail f 1 1 l l a note) 1. dimensions"*1 (nom)"and"*2" do not include mold flash. 2. dimension"*3"does not include trim offset.
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