N74F158NC Price| TCP V|EW | ORDER PART | TCP V|EW | ORDER PART | | VEIATT | _ | RESET | NUMBER | VEV\TT | | 16l RESET | NUMBER | | Vcur Vcc GND _rrcN LOA LNE CSCIN OSCSB_ | RESEr WDO CEIN ca_rr WDI PFI | LT0695CN-3.3 LTC6951N-3.3 | Va_rr Vcc GND ar\TTON LCW LNE OSCIN OSCSB_ | 1RESE 14l WDO 1CEIN 12l CEOLff 11l WDI 10lP 9 l PFI | LTC695CSW-3.3 LT06951SW-3.3 | | N PACKAGE 16-LEAD PDIP TJM/XX = iioic, ejA = 130IOW | SW PACKAGE 16-LEAD PLAS11CWIDESO TJM/XX = iioiC ejA= 13mOW | | TOP VIEW | LT0694CN8-3.3 | TOP VIEW | LTC694CS8-3.3 | | | V | | LT06941N8-3.3 | Vcur | | VBATT | LT06941S8-3.3 | | Vour Vcc GND PFI | VaAIT RESE WDI | Vcc GND PFI | RESEr WDI PFO | S8 PART MARKING | | N8 PACKAGE 8-LEAD PDIP TJMAX = 110IC, OJA = 130lClW | S8 PACKAGE 8-LEAD PLAS11CSO TJMAX = 110lC OJA = 180lClW | 6943 69413 | | | | | | | | |
N74F158NC on stock To enable LCD voltage programming, SEL is set to open-circuit and a level of VDD - 5 V iS applied to VPP (see Fig.6). The first pulse (tE) applied to the DATA input clears the EEPROM to give the lowest voltage output. Further pulses (tL) will increment the output voltage by steps of typically 150 mV (Tamb = 25 IC). For programming, measure VDD - VSS and apply a store pulse (tw) when the required value is reached. If the maximum number of steps (n = 31) is reached and an additional pulse is applied the voltage will return to the lowest value. | r'--.S?1~:Li ijjiijt 4 J The PT4820 ExcaliburTM power The PT4820 series incorporates PT4821 = +3.3/+2.5/+1.5V modules are a series ofisolated triple- many features to simplify system PT4822 = +3.3/+1.8/+1.5V output DC/DC converters that integration. These include a flexible PT4823 = +3.3/+2.5/+1.2V PT4824D = +3.3/+1.8/+1.2V operate from a standard (-48 0n/Off enable control, an input ~T48250 = +3.3/+1.5/+1.2V central office supply. Rated for up to under-voltage lock-out, and over- PT4826 = +5.0/+3.3/+1.8V 35W, these regulators are ideal for temperature protection. All outputs PT4827 = +3.3/+2.5/+1.8V powering many mixed logic appli- have short-circuit protection and are PT4828 = +5.0/+2.5/+1.5V cations. The triple-output voltage internally sequenced to meet the PT4829 = +5.0/+1.8/+1.5V combination allows for a compact power-up and power-down require- PT4831 = +5.0/+3.3/+1.5V multiple-output power supply in a ments of popular DSP ICs. PT4832 = +5.0/+3.3/+2.5V single low-profile DC/DC module. The PT4820 series is housed in ' PT4833 = +3.3/+2.0/+1.5V The available output voltage a space-saving solderable case. The * The PT4833 is not included in the VDE options include a low-voltage power module requires no external heat sink safety certifiaition. bus for a DSP or ASIC core, and and can occupy as little as l.3 inZ of two additional standard logic supply PCB area. i.-:'..". r "i.r. (PTll34-~ voltages. Case/Pin Order Package Configuration Suffix Code Vertical i:r (ENM} Horizontal 171 (ENN} SMD j.;; (ENP} (Refereizce the applicable package code drawing for the dimensions and PC lqyout) | | | PT4820 +Vo, | 1213 IO | | | | +VIN | 11 | | | | | :'JIN V, Adj COM | Co 9,10 | | | | | 1617 | Logic | DSL, DSP, | | CIN 7 | 1 | EN1 | +V0 2 V2 Adj COM | ÷ | or ASIC Chipset | | -VIN | r | EN2 | | 20 21 Core | | +V0 3 | 19 | | | | -VIN | V3Adj | C03 7 | | COM | 18 | | | | Cin = Optional Coi, C02, C03 : Optional; See specifications | | | 7 | | ENl & EN2 pins: See On/Off Enable Logic | | | | | | | | | |
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