1/8 april 2004 high speed: t pd = 9ns (typ.) at v cc =6v low power dissipation: i cc =1 a(max.) at t a =25c high noise immunity: v nih =v nil = 28% v cc (min.) symmetrical output impedance: |i oh |=i ol =4ma(min)atv cc =4.5v balanced propagation delays: t plh ? t phl wide operating voltage range: v cc (opr) = 2v to 6v pin and function compatible with 54 series 20 space grade-1: esa scc qualified 50 krad qualified, 100 krad available on request no sel under high let heavy ions irradiation device fully compliant with scc-9201-118 description the m54hc20 is an high speed cmos dual 4-input nand gate fabricated with silicon gate c 2 mos technology. the internal circuit is composed of 3-stage including buffered output, which gives high noise immunity and stable output. all inputs are equipped with protection circuits against static discharge and transient excess voltage. m54hc20 rad-hard dual 4-input nand gate pin connection order codes package fm em dilc M54HC20D M54HC20D1 fpc m54hc20k m54hc20k1 dilc-14 fpc-14
m54hc20 2/8 iec logic symbols input and output equivalent circuit pin description truth table absolute maximum ratings absolute maximum ratings are those values beyond which damage to the device may occur. functional operation under these conditions is not implied pin n symbol name and function 1, 9 1a, 2a data inputs 2, 10 1b, 2b data inputs 3, 11 n.c. not connected 4, 12 1c, 2c data inputs 5, 13 1d, 2d data inputs 6, 8 1y ,2y data outputs 7 gnd ground (0v) 14 v cc positive supply voltage abcdy lxxxh xlxxh xxlxh xxxlh hhhhl symbol parameter value unit v cc supply voltage -0.5 to +7 v v i dc input voltage -0.5 to v cc +0.5 v v o dc output voltage -0.5 to v cc +0.5 v i ik dc input diode current 20 ma i ok dc output diode current 20 ma i o dc output current 25 ma i cc or i gnd dc v cc or ground current 50 ma p d power dissipation 300 mw t stg storage temperature -65 to +150 c t l lead temperature (10 sec) 265 c
m54hc20 3/8 recommended operating conditions dc specifications symbol parameter value unit v cc supply voltage 2to6 v v i input voltage 0 to v cc v v o output voltage 0 to v cc v t op operating temperature -55 to 125 c t r ,t f input rise and fall time v cc =2.0v 0 to 1000 ns v cc =4.5v 0 to 500 ns v cc =6.0v 0 to 400 ns symbol parameter test condition value unit v cc (v) t a = 25c -40 to 85c -55 to 125c min. typ. max. min. max. min. max. v ih high level input voltage 2.0 1.5 1.5 1.5 v 4.5 3.15 3.15 3.15 6.0 4.2 4.2 4.2 v il low level input voltage 2.0 0.5 0.5 0.5 v 4.5 1.35 1.35 1.35 6.0 1.8 1.8 1.8 v oh high level output voltage 2.0 i o =-20 a 1.9 2.0 1.9 1.9 v 4.5 i o =-20 a 4.4 4.5 4.4 4.4 6.0 i o =-20 a 5.9 6.0 5.9 5.9 4.5 i o =-4 ma 4.18 4.31 4.13 4.10 6.0 i o =-5.2 ma 5.68 5.8 5.63 5.60 v ol low level output voltage 2.0 i o =20 a 0.0 0.1 0.1 0.1 v 4.5 i o =20 a 0.0 0.1 0.1 0.1 6.0 i o =20 a 0.0 0.1 0.1 0.1 4.5 i o =4 ma 0.17 0.26 0.33 0.40 6.0 i o =5.2 ma 0.18 0.26 0.33 0.40 i i input leakage current 6.0 v i =v cc or gnd 0.1 1 1 a i cc quiescent supply current 6.0 v i =v cc or gnd 11020 a
m54hc20 4/8 ac electrical characteristics (c l = 50 pf, input t r =t f =6ns) capacitance characteristics 1) c pd is defined as the value of the ic?s internal equivalent capacitance which is calculated from the operating current consumption without load. (refer to test circuit). average operating current can be obtained by the following equation. i cc(opr) =c pd xv cc xf in +i cc /2 (per gate) test circuit c l = 50pf or equivalent (includes jig and probe capacitance) r t =z out of pulse generator (typically 50 ? ) symbol parameter test condition value unit v cc (v) t a = 25c -40 to 85c -55 to 125c min. typ. max. min. max. min. max. t tlh t thl output transition time 2.0 30 75 95 110 ns 4.5 8 15 19 22 6.0 7 13 16 19 t plh t phl propagation delay time 2.0 30 80 100 120 ns 4.5 10 16 20 24 6.0 9 14 17 20 symbol parameter test condition value unit v cc (v) t a = 25c -40 to 85c -55 to 125c min. typ. max. min. max. min. max. c in input capacitance 5.0 5 10 10 10 pf c pd power dissipation capacitance (note 1) 5.0 27 pf
m54hc20 5/8 waveform 1: propagation delay time (f=1mhz; 50% duty cycle)
m54hc20 6/8 dim. mm. inch min. typ max. min. typ. max. a 2.1 22.54 0.083 0.100 a1 3.00 3.70 0.118 0.146 a2 0.63 0.88 1.14 0.025 0.035 0.045 b 1.82 2.03 2.39 0.072 0.080 0.094 b 0.40 0.45 0.50 0.016 0.018 0.020 b1 0.20 0.254 0.30 0.008 0.010 0.012 d 18.79 19.00 19.20 0.740 0.748 0.756 e 7.36 7.62 7.87 0.290 0.300 0.310 e1 2.54 0.100 e2 15.11 15.24 15.37 0.595 0.600 0.605 e3 7.62 7.87 8.12 0.300 0.310 0.320 f 7.11 7.75 0.280 0.305 i 3.70 0.146 k 10.90 12.1 0.429 0.476 l 1.14 1.27 1.5 0.045 0.050 0.059 dilc-14 mechanical data 0016173h
m54hc20 7/8 dim. mm. inch min. typ max. min. typ. max. a 6.75 6.91 7.06 0.266 0.272 0.278 b 9.76 9.95 10.14 0.384 0.392 0.399 c 1.49 1.95 0.059 0.077 d 0.10 0.127 0.15 0.004 0.005 0.006 e 7.50 7.62 7.75 0.295 0.300 0.305 f 1.27 0.050 g 0.38 0.43 0.48 0.015 0.017 0.019 h 6.0 0.236 l 18.75 22.0 0.738 0.866 m 0.38 0.015 n 4.31 0.170 fpc-14 mechanical data 016029e 1 7 8 14 f g d h a b m n h c l e
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