Dual Retriggerable Monostable Multivibrators (with Clear)

Transcription

1 ual Rtriggrabl Monostabl Multivibrators (with Clar) RJ Rv.2.00 Fb This d- triggrd multivibrator faturs output puls width ontrol by thr mthod. Th basi puls tim is programmd by sltion of xtrnal rsistan and apaitan valus. On triggrd, th basi puls width may b xtndd by rtriggring th gatd low-lvl -ativ () or high-lvl ativ () inputs, or b rdud by us of th ovrriding lar. Figur illustrats puls ontrol by rtriggring and arly lar. This dvi is providd nough Shmitt hystrsis to nsur jittr-fr triggring from th input with transition rats as slow as 0. mv/ns. Faturs Ordring Information Part Nam H74S23P H74S23FP H74S23RP Pakag Typ IP-6 pin SOP-6 pin (JIT) SOP-6 pin (JC) Pakag Cod (Prvious Cod) PRP006- (P-6FV) PRSP006H- (FP-6V) PRSP006G- (FP-6NV) Not: Plas onsult th sals offi for th abov pakag availability. Pakag bbrviation P FP RP Taping bbrviation (uantity) (2,000 ps/rl) (2,500 ps/rl) = Clar = Rtriggr Puls t w + t PH t w Output without rtriggr = Clar Output without lar Figur Typial Input / Output Puls Rv.2.00, Fb , pag of 8

2 Pin rrangmnt Rxt/Cxt Cxt 2 2Cxt Rxt/Cxt GN (Top viw) Funtion Tabl Inputs Outputs Clar 2 X X H X H X H X X H H H H H Nots: H; high lvl, ; low lvl, X; irrlvant ; transition from low to high lvl ; transition from high to low lvl ; on high-lvl puls ; on low-lvl puls lok iagram (/2) xtrnal paramtr Cxt Rxt /Cxt Clar Clar Rv.2.00, Fb , pag 2 of 8

3 bsolut Maximum Ratings Itm Symbol Ratings Unit Supply voltag 7 V Input voltag V IN 7 V Powr dissipation P T 400 mw Storag tmpratur Tstg 65 to +50 C Not: Voltag valu, unlss othrwis notd, ar with rspt to ntwork ground trminal. Rommndd Oprating Conditions Itm Symbol Min Typ Max Unit Supply voltag V I OH 400 µ Output urrnt I O 8 m Oprating tmpratur Topr C, Input puls width H 40 ns t w (in) 40 ns 40 ns xtrnal timing rsistan R xt kω xtrnal apaitan C xt Non rstrition Wiring apaitan at Rxt/Cxt trminal 50 pf ltrial Charatristis Input voltag Output voltag Input urrnt Itm Symbol min. typ.* max. Unit Condition Short-iruit output urrnt V IH 2.0 V V I 0.8 V V OH 2.7 V (Ta = 20 to +75 C) = 4.75 V, V IH = 2 V, V I = 0.8 V, I OH = 400 µ 0.4 I O = 4 m = 4.75 V, V IH = 2 V, V 0.5 I O = 8 m V I = 0.8 V I IH 20 µ = 5.25 V, V I = 2.7 V V O I I 0.4 m = 5.25 V, V I = 0.4 V I I 0. m = 5.25 V, V I = 7 V I OS m = 5.25 V Supply urrnt** I CC 2 20 m = 5.25 V Input lamp voltag V IK.5 V = 4.75 V, I IN = 8 m * = 5 V, Ta = 25 C ** With all outputs opn and 4.5 V applid to all data and lar inputs, I CC is masurd aftr a momntary ground, thn 4.5 V, is applid to lok. Not: To masur V OH at, V O at, or I OS at, ground R xt / C xt, apply 2 V to and lar, and puls from 2 V to 0 V. Rv.2.00, Fb , pag 3 of 8

4 Swithing Charatristis ( = 5 V, Ta = 25 C) Itm Symbol Inputs Outputs min. typ. max. Unit Condition Propagation dlay tim Output puls width t PH t PH t PH t PH t PH t PH t (out)min 6 200, t (out) Typial ppliation ata for H74S23 ns µs C xt = 0, R xt = 5 kω, C = 5 pf, R = 2 kω C xt = 000 pf, R xt = 0 kω, C = 5 pf, R = 2 kω For puls widths whn C xt 000 pf, S Figur 3. Th output puls is primarily a funtion of th xtrnal apaitor and rsistor. For C xt > 000 pf, th output puls width (t w ) is dfind as: t w(out) = K R xt C xt ; S Figur 4. Rxt + to Cxt Cxt to Rxt/Cxt Rxt (kω) Cxt (pf) t w(out) (ns) Figur 2 Timing Componnt Conntions Output puls width tw (ns) 00,000 0,000,000 Rxt = 60kΩ Rxt = 80kΩ 00 40kΩ 20kΩ 0kΩ 5kΩ ,000 xtrnal apaitan Cxt (pf) Figur 3 Typial Output Puls Width (Cxt 000 pf) Rv.2.00, Fb , pag 4 of 8

5 0.5 offiint of output puls width K Timing apaitan Cxt (pf) = 5V Ta = 25 C Figur 4 C xt vs. K (C xt > 000 pf) Rv.2.00, Fb , pag 5 of 8

6 Tsting Mthod Tst Ciruit Input Cxt Rxt /Cxt Output P.G. out = 50Ω Cxt Rxt /Cxt R oad iruit Input C P.G. out = 50Ω Output Input Sam as oad Ciruit. P.G. out = 50Ω Nots:. C inluds prob and jig apaitan. 2. ll diods ar S2074(H). Wavform.3V tw (in).3v.3v 3V tw (in) tw (in).3v.3v.3v 0V 3V tw (in) 0V tw () 3V Clar.3V.3V 0V tph tph V OH.3V.3V.3V.3V V O tph tw (out) tph tw (out) V OH.3V.3V.3V.3V V O Not: tph Input puls; t TH 5 ns, t TH 6 ns. tph Rv.2.00, Fb , pag 6 of 8

7 H74S23 Pakag imnsions JIT Pakag Cod P-IP6-6.3x RNSS Cod PRP006- Prvious Cod P-6FV MSS[Typ.].05g b 3 Rfrn Symbol imnsion in Millimtrs Min Nom Max b ( Ni/Pd/u plating ) JIT Pakag Cod P-SOP6-5.5x RNSS Cod PRSP006H- Prvious Cod FP-6V MSS[Typ.] 0.24g * *2 6 9 F H Indx mark 8 *3 x M Rfrn Symbol 2 imnsion in Millimtrs Min Nom Max b H y NOT). IMNSIONS"* (Nom)"N"*2" O NOT INCU MO FSH. 2. IMNSION"*3"OS NOT INCU TRIM OFFST. Trminal ross stion ( Ni/Pd/u plating ) x tail F y Rv.2.00, Fb , pag 7 of 8

8 H74S23 JIT Pakag Cod P-SOP6-3.95x RNSS Cod PRSP006G- Prvious Cod FP-6NV MSS[Typ.] 0.5g 6 * 9 F Indx mark *2 H NOT). IMNSIONS"* (Nom)"N"*2" O NOT INCU MO FSH. 2. IMNSION"*3"OS NOT INCU TRIM OFFST. *3 x M 8 Trminal ross stion ( Ni/Pd/u plating ) Rfrn Symbol 2 imnsion in Millimtrs Min Nom Max b y tail F H x y Rv.2.00, Fb , pag 8 of 8

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