产品介绍

74LVX245 Low Voltage CMos Octal Bus Transceiver (3-State)

The 74LVX245 is a low voltage CMOS OCTAL BUS BUFFER (3-STATE) fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It is ideal for low power, battery operated and low noise 3.3V applications.

This IC is intended for two-way asynchronous communication between data busses; the direction of data transmission is determined by DIR input. The enable input G can be used to disable the device so that the busses are effectively isolated.

Power down protection is provided on all inputs and 0 to 7V can be accepted on inputs with no regard to the supply voltage.

This device can be used to interface 5V to 3V. It combines high speed performance with the true CMOS low power consumption.

All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.

All floating bus terminals during High Z state must be held HIGH or LOW

技术特性

• HIGH SPEED:
  • tPD=4.7ns (TYP.) at VCC = 3.3V
• 5V TOLERANT INPUTS
• POWER-DOWN PROTECTION ON INPUTS
• INPUT VOLTAGE LEVEL:
  • VIL = 0.8V, VIH = 2V at VCC =3V
• LOW POWER DISSIPATION:
  • ICC = 4 µA (MAX.) at TA=25°C
• LOW NOISE:
  • VOLP = 0.5V (TYP.) at VCC =3.3V
• SYMMETRICAL OUTPUT IMPEDANCE:
  • |IOH| = IOL = 4 mA (MIN) at VCC =3V
• BALANCED PROPAGATION DELAYS:
  • tPLH tPHL
• OPERATING VOLTAGE RANGE:
  • VCC(OPR) = 2V to 3.6V (1.2V Data Retention)
• PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 245
• IMPROVED LATCH-UP IMMUNITY

74LVX245 订购信息

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