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CY74FCT2543ATSOCT Datasheet(PDF) 2 Page - Texas Instruments |
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CY74FCT2543ATSOCT Datasheet(HTML) 2 Page - Texas Instruments |
2 / 6 page CY74FCT2543T 2 Maximum Ratings[4,5] (Above which the useful life may be impaired. For user guide- lines, not tested.) Storage Temperature .....................................−65°C to +150°C Ambient Temperature with Power Applied ..................................................−65°C to +135°C Supply Voltage to Ground Potential ..................−0.5V to +7.0V DC Input Voltage .................................................−0.5V to +7.0V DC Output Voltage ..............................................−0.5V to +7.0V DC Output Current (Maximum Sink Current/Pin) ...... 120 mA Power Dissipation .......................................................... 0.5W Static Discharge Voltage............................................>2001V (per MIL-STD-883, Method 3015) Pin Description Name Description OEAB A-to-B Output Enable Input (Active LOW) OEBA B-to-A Output Enable Input (Active LOW) CEAB A-to-B Enable Input (Active LOW) CEBA B-to-A Enable Input (Active LOW) LEAB A-to-B Latch Enable Input (Active LOW) LEBA B-to-A Latch Enable Input (Active LOW) A A-to-B Data Inputs or B-to-A Three-State Outputs B B-to-A Data Inputs or A-to-B Three-State Outputs Function Table[1,2] Inputs Latch Outputs CEAB LEAB OEAB A-to-B[3] B H X X Storing High Z X H X Storing X X X H X High Z L L L Transparent Current A Inputs L H L Storing Previous A Inputs Operating Range Range Ambient Temperature VCC Commercial −40°C to +85°C 5V ± 5% Electrical Characteristics Over the Operating Range Parameter Description Test Conditions Min. Typ.[7] Max. Unit VOH Output HIGH Voltage VCC=Min., IOH=−15 mA 2.4 3.3 V VOL Output LOW Voltage VCC=Min., IOL=12 mA 0.3 0.55 V ROUT Output Resistance VCC=Min., IOL=12 mA 20 25 40 Ω VIH Input HIGH Voltage 2.0 V VIL Input LOW Voltage 0.8 V VH Hysteresis[8] All inputs 0.2 V VIK Input Clamp Diode Voltage VCC=Min., IIN=−18 mA −0.7 −1.2 V IIH Input HIGH Current VCC=Max., VIN=VCC 5 µA IIH Input HIGH Current VCC=Max., VIN=2.7V ±1 µA IIL Input LOW Current VCC=Max., VIN=0.5V ±1 µA IOZH Off State HIGH-Level Output Current VCC=Max., VOUT=2.7V 15 µA IOZL Off State LOW-Level Output Current VCC=Max., VOUT=0.5V −15 µA IOS Output Short Circuit Current[9] VCC=Max., VOUT=0.0V −60 −120 −225 mA IOFF Power-Off Disable VCC=0V, VOUT=4.5V ±1 µA Notes: 1. H = HIGH Voltage Level. L = LOW Voltage Level. X = Don’t Care. 2. A-to-B data flow shown: B-to-A is the same, except using CEBA, LEBA, and OEBA. 3. Before LEAB LOW-to-HIGH transition. 4. Unless otherwise noted, these limits are over the operating free-air temperature range. 5. Unused inputs must always be connected to an appropriate logic voltage level, preferably either VCC or ground. 6. TA is the “instant on” case temperature. |
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