d a t a sh eet product speci?cation file under integrated circuits, ic04 january 1995 integrated circuits hef4049b buffers hex inverting buffers 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 www.datasheet.co.kr datasheet pdf - http://www..net/
january 1995 2 philips semiconductors product speci?cation hex inverting buffers hef4049b buffers description the hef4049b provides six inverting buffers with high current output capability suitable for driving ttl or high capacitive loads. since input voltages in excess of the buffers supply voltage are permitted, the buffers may also be used to convert logic levels of up to 15 v to standard ttl levels. their guaranteed fan-out into common bipolar logic elements is shown in the table below. fig.1 functional diagram. fig.2 pinning diagram. guaranteed fan-out in common logic families application information some examples of applications for the hef4049b are: locmos to dtl/ttl converter high sink current for driving 2 ttl loads high-to-low level logic conversion input protection family data, i dd limits category buffers see family specifications hef4049bp(n): 16-lead dil; plastic (sot38-1) heF4049BD(f): 16-lead dil; ceramic (cerdip) (sot74) hef4049bt(d): 16-lead so; plastic (sot109-1) ( ): package designator north america driven element guaranteed fan-out standard ttl 2 74 ls 9 74 l 16 fig.3 logic diagram (one gate). fig.4 input protection circuit that allows input voltages in excess of v dd . www.datasheet.co.kr datasheet pdf - http://www..net/
january 1995 3 philips semiconductors product speci?cation hex inverting buffers hef4049b buffers dc characteristics v ss = 0 v; v i =v ss or v dd hef v dd v v o v symbol t amb ( c) - 40 + 25 + 85 min. max. min. max. mn. max. output (sink) 4,75 0,4 3,5 - 2,9 - 2,3 - ma current low 10 0,5 i ol 12,0 - 10,0 - 8,0 - ma 15 1,5 24,0 - 20,0 - 16,0 - ma output (source) 5 4,6 0,52 - 0,44 - 0,36 - ma current high 10 9,5 ? i oh 1,3 - 1,1 - 0,9 - ma 15 13,5 3,6 - 3,0 - 2,4 - ma output (source) current high 5 2,5 ? i oh 1,7 - 1,4 - 1,1 - ma hec v dd v v o v symbol t amb ( c) - 55 + 25 + 125 min. max. min. max. min. max. output (sink) 4,75 0,4 3,6 - 2,9 - 1,9 - ma current low 10 0,5 i ol 12,5 - 10,0 - 6,7 - ma 15 1,5 25,0 - 20,0 - 13,0 - ma output (source) 5 4,6 0,52 - 0,44 - 0,36 - ma current high 10 9,5 ? i oh 1,3 - 1,1 - 0,9 - ma 15 13,5 3,6 - 3,0 - 2,4 - ma v dd v symbol typ. max. typical extrapolation formula propagation delays 5 35 70 ns 26 ns + (0,18 ns/pf) c l i n ? o n 10 t phl 15 30 ns 11 ns + (0,08 ns/pf) c l high to low 15 12 25 ns 9 ns + (0,05 ns/pf) c l 5 50 100 ns 23 ns + (0,55 ns/pf) c l low to high 10 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 5 20 40 ns 3 ns + (0,35 ns/pf) c l times 10 t thl 10 20 ns 3 ns + (0,14 ns/pf) c l high to low 15 7 14 ns 2 ns + (0,09 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 www.datasheet.co.kr datasheet pdf - http://www..net/
january 1995 4 philips semiconductors product speci?cation hex inverting buffers hef4049b buffers v dd v typical formula for p ( m w) dynamic power 5 2 500 f i +? (f o c l ) v dd 2 where dissipation per 10 11 000 f i +? (f o c l ) v dd 2 f i = input freq. (mhz) package (p) 15 35 000 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) www.datasheet.co.kr datasheet pdf - http://www..net/
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