Dynamic Shift Registers - Bitsavers - Trailing-Edge

...(..)Noo::I:~........N...oo::I:~absolute maximum ratingsv- Supply Voltage: Differential (Pin 1 or 2 to Maximum Output Load-See Figure 2Pin 5) -40V Power Dissipation-See Figure I 1.5WV+ Supply Voltage: Differential (Pin B or 9 Storage Temperature _65°C to +1 50°Cto Pin I or 2) 30V Operating Temperature: MHOOl2 _55°C to +125°CInput Current: (Pin 3 or 7) ±75mA MHOOl2C O°C to +B5°CPeak Output Current ±IOOOmA Lead Temperature (Soldering, 10 sec) 300°Cdc electrical characteristics (Note 1)PARAMETER CONDITIONS MIN TYP MAX UNITSLogic "I" Input Voltage V+ - V- = 20V, VOUT r-... '"--wI -:; 15.5 i ~~ ~ ~ r--...;::-10 w!!! 10a:~5 .. -t-00 25 50 75 100 125 150 175 0 400 800 1200 16002QO 400 600 800 1000AMBIENT TEMPERATURE (OC) MAXIMUM OUTPUT LOAD (pF) LOAD CAPACITANCE, C L (pF)Figure 1. Figure 2.applications informationPower Dissipation Considerations W~ere: The transient power incurred during switching isON TimeThe power dissipated by the MHool2 may begiven by:DC = Duty Cycle = ON Time & OFF Timedivided into three areas of operation = ON, OFFPAC = (V+ - V-)2 Clf (3)and switching. The OFF power is approximately .. Y,N - V BE3and equation (I) For V' = OV, V- = -20V, Cl = 200 pF, and30 mW and is dissipated by R2 when Pin 3 is inl,N IS gIven by R,f = 5.0 MHz, PAC = 400 mW.the logic "I'" state. The OFF power is neglible and becomes:will be ignored in the subsequent discussion. TheThe total power is given by:ON power is dissipated primarily by 0 3 and Rg [(V IN - V BE3)IV-1 (V+ V-)2] PT = PAC + PON (4)PON = R, + --- DC (2)and is given by:RgPT ~ PMAX(V+ _V-)2 For Y,N = 2.5V, V BE3 = 0.7V, V+ = OV, V- = -20V, For the above example, PT = 600 mW_PON ;" [IV-II'N +---1 DC (I)Rgand DC = 20%, PON '" 200 mW.122