1. General description
The 74AVCH1T45 is a single bit, dual supply transceiver that enables bidirectional level translation.
The 74AVCH1T45 has active bus hold circuitry which is provided to hold unused or floating data
inputs at a valid logic level. This feature eliminates the need for external pull-up or pull-down
resistors.The device is fully specified for partial power-down applications using IOFF. The IOFF
circuitry disables the output, preventing potentially damaging backflow current through the device
when it is powered down.
2. Features and benefits
• Wide supply voltage range from 0.8 V to 3.6 V
• High noise immunity
• CMOS low power dissipation
• Overvoltage tolerant inputs to 3.6 V
• Dynamically controlled outpus
• Complies with JEDEC standards:
• JESD8-12 (0.8 V to 1.3 V)
• JESD8-11 (0.9 V to 1.65 V)
• JESD8-7 (1.65 V to 1.95 V)
• JESD8-5 (2.3 V to 2.7 V)
• JESD8C (2.7 V to 3.6 V)
• ESD protection:
• HBM JESD22-A114E Class 3B exceeds 8000 V
• MM JESD22-A115-A exceeds 200 V
• CDM JESD22-C101C exceeds 1000 V
• Maximum data rates:
• 500 Mbit/s (1.8 V to 3.3 V translation)
• 320 Mbit/s (< 1.8 V to 3.3 V translation)
• 320 Mbit/s (translate to 2.5 V or 1.8 V)
• 280 Mbit/s (translate to 1.5 V)
• 240 Mbit/s (translate to 1.2 V)
• Suspend mode
• Bus hold on data inputs
• Latch-up performance exceeds 100 mA per JESD 78 Class II
• Low noise overshoot and undershoot < 10 % of VCC
• IOFF circuitry provides partial Power-down mode operation
• Multiple package options
• Specified from -40 °C to +85 °C and -40 °C to +125 °C