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74LVQ245 датащи(PDF) 1 Page - STMicroelectronics |
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74LVQ245 датащи(HTML) 1 Page - STMicroelectronics |
1 / 8 page 74LVQ245 LOW VOLTAGE CMOS OCTAL BUS TRANSCEIVER (3-STATE) ® March 1999 ORDER CODES : 74LVQ245M 74LVQ245T M (Micro Package) s HIGH SPEED: tPD = 6 ns (TYP.) at VCC = 3.3V s COMPATIBLE WITH TTL OUTPUTS s LOW POWER DISSIPATION: ICC =5 µA (MAX.) at TA =25 oC s LOW NOISE: VOLP = 0.5V (TYP.) at VCC = 3.3V s 75 Ω TRANSMISSION LINE DRIVING CAPABILITY s SYMMETRICAL OUTPUT IMPEDANCE: |IOH|=IOL = 12 mA (MIN) s PCI BUS LEVELS GUARANTEED AT 24mA s BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL s OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 3.6V (1.2VData Retention) s PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 245 s IMPROVED LATCH-UP IMMUNITY DESCRIPTION The LVQ245 is a low voltage CMOS OCTAL BUS TRANSCEIVER (3-STATE) fabricated with sub-micron silicon gate and double-layer metal wiring C 2MOS technology. It is ideal for low power and low noise 3.3V applications. It has better speed performance at 3.3V than 5V LSTTL family combined with the true CMOS low power consumption. T (TSSOP Package) This IC is intended for two-way asynchronous communication between data buses; the direction of data trasmission is determined by DIR input. The enable input G can be used to disable the device so that the buses are effectively isolated. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. IT IS PROHIBITED TO APPLY A SIGNAL TO A TERMINAL WHEN IT IS IN OUTPUT MODE AND WHEN A BUS TERMINAL IS FLOATING (HIGH IMPEDANCE STATE) IT IS REQUESTED TO FIX THE INPUT LEVEL BY MEANS OF EXTERNAL PULL DOWN OR PULL UP RESISTOR. PIN CONNECTION AND IEC LOGIC SYMBOLS 1/8 |
Аналогичный номер детали - 74LVQ245 |
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Аналогичное описание - 74LVQ245 |
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