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54AC164245：Rad-Hard 16-bit transceiver, 3.3 to 5 V bidirectional level shifter transceiver

The 54AC164245 is a rad-hard advanced high-speed CMOS, Schmitt trigger, 16-bit, bidirectional, multi-purpose transceiver with 3-state outputs and cold sparing.

Designed for use as an interface between a 5 V bus and a 3.3 V bus in mixed 5 V/3.3 V supply systems, it achieves high-speed operation while maintaining the CMOS low-power dissipation.

All pins have cold spare buffers to change them to high impedance when V_DD is tied to ground.

This IC is intended for two-way asynchronous communication between the data buses. The direction of the data transmission is determined by the nDIR inputs.

The A port interfaces with the 3.3 V bus but can also operate at 2.3 V. The B port operates with the 5 V bus.

Key Features

• Fully compatible with 54ACS164245
• Dual supply bidirectional level shifter
• Extended voltage range from 2.3 V to 5.5 V
• Separated enable pin for 3-state output
• Schmidt-triggered I/Os: 100 mV hysteresis
• Internal 26 Ω limiting resistor on each I/O
• High speed: Tpd = 8 ns maximum
• Fail safe
• Cold spare
• Hermetic package
• 100 krad (Si) at any Mil1019 dose rate
• SEL immune to 110 MeV.cm2 /mg LET ions
• RHA QML-V qualified

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