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74ACT158 Datasheet(PDF) 1 Page - STMicroelectronics |
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74ACT158 Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 8 page  74ACT158 QUAD 2 CHANNEL MULTIPLEXER (INV.) PRELIMINARY DATA May 1997 s HIGH SPEED: tPD = 4 ns (TYP.) at VCC =5V s LOW POWER DISSIPATION: ICC =8 µA (MAX.) at TA =25 oC s COMPATIBLE WITH TTL OUTPUTS VIH =2V (MIN), VIL = 0.8V (MAX) s 50 Ω TRANSMISSION LINE DRIVING CAPABILITY s SYMMETRICAL OUTPUT IMPEDANCE: |IOH|= IOL =24 mA (MIN) s BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL s OPERATING VOLTAGE RANGE: VCC (OPR) = 4.5V to 5.5V s PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 158 s IMPROVED LATCH-UP IMMUNITY DESCRIPTION The ACT158 is an high-speed CMOS QUAD 2-CHANNEL MULTIPLEXER fabricated with sub-micron silicon gate and double-layer metal wiring C 2MOS technology. It is ideal for low power applications maintaining high speed operation similar to equivalent Bipolar Schottky TTL. It consists of four 2-input digital multiplexers with common select and strobe inputs. It is an inverting multiplexer. When the STROBE input is held High selection of data is inhibit and all the outputs become high. The SELECT decoding determines whether the A or B inputs get routed to their corresponding Y outputs. The device is designed to interface directly High Speed CMOS systems with TTL, NMOS and CMOS output voltage levels. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. PIN CONNECTION AND IEC LOGIC SYMBOLS M (Micro Package) B (Plastic Package) ORDER CODES : 74ACT158B 74ACT158M 1/8 |
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