d a t a sh eet product speci?cation file under integrated circuits, ic04 january 1995 integrated circuits hef4002b gates dual 4-input nor gate for a complete data sheet, please also download: the ic04 locmos he4000b logic family specifications hef, hec the ic04 locmos he4000b logic package outlines/information hef, hec
january 1995 2 philips semiconductors product speci?cation dual 4-input nor gate hef4002b gates description the hef4002b provides the positive dual 4-input nor function. the outputs are fully buffered for highest noise immunity and pattern insensitivity of output impedance. fig.1 functional diagram. hef4002bp(n): 14-lead dil; plastic (sot27-1) hef4002bd(f): 14-lead dil; ceramic (cerdip) (sot73) hef4002bt(d): 14-lead so; plastic (sot108-1) ( ): package designator north america fig.2 pinning diagram. family data, i dd limits category gates see family speci?cations fig.3 logic diagram (one gate).
january 1995 3 philips semiconductors product speci?cation dual 4-input nor gate hef4002b gates ac characteristics v ss = 0 v; t amb =25 c; c l = 50 pf; input transition times 20 ns v dd v symbol typ. max. typical extrapolation formula propagation delays 5 60 120 ns 33 ns + (0,55 ns/pf) c l i n ? o n 10 t phl ; t plh 25 50 ns 14 ns + (0,23 ns/pf) c l 15 20 40 ns 12 ns + (0,16 ns/pf) c l output transition times 5 60 120 ns 10 ns + (1,0 ns/pf) c l high to low 10 t thl 30 60 ns 9 ns + (0,42 ns/pf) c l 15 20 40 ns 6 ns + (0,28 ns/pf) c l 5 60 120 ns 10 ns + (1,0 ns/pf) c l low to high 10 t tlh 30 60 ns 9 ns + (0,42 ns/pf) c l 15 20 40 ns 6 ns + (0,28 ns/pf) c l v dd v typical formula for p ( m w) dynamic power 5 1050 f i +? (f o c l ) v dd 2 where dissipation per 10 4300 f i +? (f o c l ) v dd 2 f i = input freq. (mhz) package (p) 15 11 700 f i +? (f o c l ) v dd 2 f o = output freq. (mhz) c l = load capacitance (pf) ? (f o c l ) = sum of outputs v dd = supply voltage (v)
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