HD74HC147FPEL. 10-to-4-line Priority Encoder. Description. Features. Function Table. REJ03D (Previous ADE ) Rev.2.

Transcription

1 0-to-4-lin Priority nodr RJ (Prvious ) Rv.2.00 Ot, 2005 sription Th H74HC47 faturs priority noding of th inputs to nsur that only th highst ordr data lin is nodd. Nin input lins ar nodd to a four lin BC output. Th implid dimal zro ondition rquirs no input ondition as zro is nodd whn all nin data lins ar at a high logi lvl. ll data inputs and outputs ar ativ at th low logi lvl. Faturs High Spd Opration: t pd = 4.5 ns typ (C L = 50 pf) High Output Currnt: Fanout of 0 LSTTL Loads Wid Oprating oltag: CC = 2 to 6 Low Input Currnt: µ max Low Quisnt Supply Currnt: I CC (stati) = 4 µ max (Ta = 25 C) Ordring Information Part Nam H74HC47P H74HC47FPL Pakag Typ ILP-6 pin SOP-6 pin (JIT) Pakag Cod (Prvious Cod) PRP006-B (P-6F) PRSP006H-B (FP-6) Not: Plas onsult th sals offi for th abov pakag availability. Pakag bbrviation P FP Taping bbrviation (Quantity) L (2,000 ps/rl) Funtion Tabl Inputs Outputs C B H H H H H H H H H H H H H X X X X X X X X L L H H L X X X X X X X L H L H H H X X X X X X L H H H L L L X X X X X L H H H H L L H X X X X L H H H H H L H L X X X L H H H H H H L H H X X L H H H H H H H H L L X L H H H H H H H H H L H L H H H H H H H H H H H L H : High lvl L : Low lvl X : Irrlvant Rv.2.00, Ot, 2005 pag of 5

2 Pin rrangmnt 4 6 CC Inputs NC 4 Output Inputs Outputs C B 6 7 C B GN 9 Output (Top viw) bsolut Maximum Ratings Itm Symbol Rating Unit Supply voltag rang CC 0.5 to +7.0 Input voltag IN 0.5 to CC Output voltag OUT 0.5 to CC Output urrnt I OUT ±25 m C urrnt drain pr CC, GN I CC, I GN ±50 m C input diod urrnt I IK ±20 m C output diod urrnt I OK ±20 m Powr dissipation pr pakag P T 500 mw Storag tmpratur Tstg 65 to +50 C Not: Th absolut maximum ratings ar valus, whih must not individually b xdd, and furthrmor, no two of whih may b ralizd at th sam tim. Rommndd Oprating Conditions Itm Symbol Ratings Unit Conditions Supply voltag CC 2 to 6 Input / Output voltag IN, OUT 0 to CC Oprating tmpratur Ta 40 to 5 C 0 to 000 CC = 2.0 Input ris / fall tim * t r, t f 0 to 500 ns CC = to 400 CC = 6.0 Not:. This itm guarants maximum limit whn on input swiths. Wavform: Rfr to tst iruit of swithing haratristis. Rv.2.00, Ot, 2005 pag 2 of 5

3 ltrial Charatristis Input voltag Ta = 25 C Ta = 40 to+5 C Itm Symbol CC () Min Typ Max Min Max Unit Tst Conditions Output voltag IH IL OH OL I OH = 20 µ I OH = 4 m in = IH or IL I OH = 5.2 m I OL = 20 µ I OL = 4 m in = IH or IL Input urrnt Iin 6.0 ±0. ±.0 µ in = CC or GN Quisnt supply urrnt I OL = 5.2 m I CC µ in = CC or GN, Iout = 0 µ Swithing Charatristis (C L = 50 pf, Input t r = t f = 6 ns) Ta = 25 C Ta = 40 to +5 C Itm Symbol CC () Min Typ Max Min Max Unit Tst Conditions Propagation dlay tim Output ris/fall tim t PHL t PLH t TLH, t THL Input apaitan Cin pf ns ns ns Slt to any Y (4 lvls) Tst Ciruit Masurmnt point C L * Not: C L inluds th prob and fig apaitan. Rv.2.00, Ot, 2005 pag 3 of 5

4 Wavforms t r t f Input CC 0 t PLH t PHL Sam-phas output OH OL t PHL t TLH t PLH t THL Invrs-phas output OH OL t THL t TLH Nots:. Input wavform: PRR MHz, o = 50 Ω, t r 6 ns, t f 6 ns 2. Th output ar masurd on at a tim with on transition pr masurmnt. Rv.2.00, Ot, 2005 pag 4 of 5

5 H74HC47 Pakag imnsions JIT Pakag Cod P-IP6-6.3x RNSS Cod PRP006-B Prvious Cod P-6F MSS[Typ.].05g b 3 L Rfrn Symbol imnsion in Millimtrs Min Nom Max b ( Ni/Pd/u plating ) L JIT Pakag Cod P-SOP6-5.5x RNSS Cod PRSP006H-B Prvious Cod FP-6 MSS[Typ.] 0.24g * *2 6 9 F H Indx mark *3 x M Rfrn Symbol 2 imnsion in Millimtrs Min Nom Max b H y NOT). IMNSIONS"* (Nom)"N"*2" O NOT INCLU MOL FLSH. 2. IMNSION"*3"OS NOT INCLU TRIM OFFST. Trminal ross stion ( Ni/Pd/u plating ) L L x tail F y L L.5 Rv.2.00, Ot, 2005 pag 5 of 5

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