d a t a sh eet product speci?cation file under integrated circuits, ic06 december 1990 integrated circuits 74hc/hct151 8-input multiplexer for a complete data sheet, please also download: the ic06 74hc/hct/hcu/hcmos logic family specifications the ic06 74hc/hct/hcu/hcmos logic package information the ic06 74hc/hct/hcu/hcmos logic package outlines
december 1990 2 philips semiconductors product speci?cation 8-input multiplexer 74hc/hct151 features true and complement outputs multifunction capability permits multiplexing from n lines to 1 line non-inverting data path see the 251 for the 3-state version output capability: standard i cc category: msi general description the 74hc/hct151 are high-speed si-gate cmos devices and are pin compatible with low power schottky ttl (lsttl). they are specified in compliance with jedec standard no. 7a. quick reference data gnd = 0 v; t amb =25 c; t r =t f = 6 ns notes 1. c pd is used to determine the dynamic power dissipation (p d in m w): p d =c pd v cc 2 f i +? (c l v cc 2 f o ) where: f i = input frequency in mhz f o = output frequency in mhz ? (c l v cc 2 f o ) = sum of outputs c l = output load capacitance in pf v cc = supply voltage in v 2. for hc the condition is v i = gnd to v cc for hct the condition is v i = gnd to v cc - 1.5 v ordering information see 74hc/hct/hcu/hcmos logic package information . symbol parameter conditions typical unit hc hct t phl / t plh propagation delay c l = 15 pf; v cc =5 v i n to y, y 1719ns s n to y, y 1920ns e to y 1213ns e to y 1418ns c i input capacitance 3.5 3.5 pf c pd power dissipation capacitance per package notes 1 and 2 40 40 pf
december 1990 3 philips semiconductors product speci?cation 8-input multiplexer 74hc/hct151 pin description pin no. symbol name and function 4, 3, 2, 1, 15, 14, 13, 12 i 0 to i 7 multiplexer inputs 5 y multiplexer output 6 y complementary multiplexer output 7 e enable input (active low) 8 gnd ground (0 v) 11, 10, 9 s 0 , s 1 , s 2 select inputs 16 v cc positive supply voltage fig.1 pin configuration. fig.2 logic symbol. fig.3 iec logic symbol.
december 1990 4 philips semiconductors product speci?cation 8-input multiplexer 74hc/hct151 function table notes 1. h = high voltage level l = low voltage level x = dont care. inputs outputs es 2 s 1 s 0 i 0 i 1 i 2 i 3 i 4 i 5 i 6 i 7 yy h xxxxxxxxxxxh l l l l l l l l l l l l l l l h h l h x x x x l h x x x x x x x x x x x x x x x x x x x x x x x x h l h l l h l h l l l l l l l l h h h h l l h h x x x x x x x x l h x x x x l h x x x x x x x x x x x x x x x x h l h l l h l h l l l l h h h h l l l l l l h h x x x x x x x x x x x x x x x x l h x x x x l h x x x x x x x x h l h l l h l h l l l l h h h h h h h h l l h h x x x x x x x x x x x x x x x x x x x x x x x x l h x x x x l h h l h l l h l h fig.4 functional diagram. fig.5 logic diagram.
december 1990 5 philips semiconductors product speci?cation 8-input multiplexer 74hc/hct151 dc characteristics for 74hc for the dc characteristics see 74hc/hct/hcu/hcmos logic family specifications . output capability: standard i cc category: msi ac characteristics for 74hc gnd = 0 v; t r =t f = 6 ns; c l = 50 pf symbol parameter t amb ( c) unit test conditions 74hc v cc (v) waveforms + 25 - 40 to + 85 - 40 to + 125 min. typ. max. min. max. min. max. t phl / t plh propagation delay i n to y 52 19 15 170 34 29 215 43 37 255 51 43 ns 2.0 4.5 6.0 fig.6 t phl / t plh propagation delay i n to y 58 21 17 185 37 31 230 46 39 280 56 48 ns 2.0 4.5 6.0 fig.6 t phl / t plh propagation delay s n to y 61 22 18 185 37 31 230 46 39 280 56 48 ns 2.0 4.5 6.0 fig.7 t phl / t plh propagation delay s n to y 61 22 18 205 41 35 255 51 43 310 62 53 ns 2.0 4.5 6.0 fig.7 t phl / t plh propagation delay e to y 41 15 12 125 25 21 155 31 26 190 38 32 ns 2.0 4.5 6.0 fig.7 t phl / t plh propagation delay e to y 47 17 14 145 29 25 180 36 31 220 44 38 ns 2.0 4.5 6.0 fig.7 t thl / t tlh output transition time 19 7 6 75 15 13 95 19 16 110 22 19 ns 2.0 4.5 6.0 figs 6 and 7
december 1990 6 philips semiconductors product speci?cation 8-input multiplexer 74hc/hct151 dc characteristics for 74hct for the dc characteristics see 74hc/hct/hcu/hcmos logic family specifications . output capability: standard i cc category: msi note to hct types the value of additional quiescent supply current ( d i cc ) for a unit load of 1 is given in the family specifications. to determine d i cc per input, multiply this value by the unit load coefficient shown in the table below. ac characteristics for 74hct gnd = 0 v; t r =t f = 6 ns; c l = 50 pf input unit load coefficient i n s n e 0.45 1.50 0.30 symbol parameter t amb ( c) unit test conditions 74hct v cc (v) waveforms + 25 - 40 to + 85 - 40 to + 125 min. typ. max. min. max. min. max. t phl / t plh propagation delay i n to y 22 38 48 57 ns 4.5 fig.6 t phl / t plh propagation delay i n to y 22 38 48 57 ns 4.5 fig.6 t phl / t plh propagation delay s n to y 23 41 51 62 ns 4.5 fig.7 t phl / t plh propagation delay s n to y 25 43 54 65 ns 4.5 fig.7 t phl / t plh propagation delay e to y 16 29 36 44 ns 4.5 fig.7 t phl / t plh propagation delay e to y 21 36 45 54 ns 4.5 fig.7 t thl / t tlh output transition time 7 15 19 22 ns 4.5 figs 6 and 7
december 1990 7 philips semiconductors product speci?cation 8-input multiplexer 74hc/hct151 ac waveforms package outlines see 74hc/hct/hcu/hcmos logic package outlines . fig.6 waveforms showing the multiplexer input (i n ) to outputs (y and y) propagation delays and the output transition times. (1) hc : v m = 50%; v i = gnd to v cc . hct : v m = 1.3 v; v i = gnd to 3 v. fig.7 waveforms showing the select input (s n ) and enable input ( e) to outputs (y and y) propagation delays and the output transition times. (1) hc : v m = 50%; v i = gnd to v cc . hct : v m = 1.3 v; v i = gnd to 3 v.
|
