Logic device/transceiver/encoder

SN74AVCH4T245 4-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation and 3-State Output

SN74HC138 3-Line to 8-Line Decoder/Demux

The VHC595 is an advanced high speed CMOS shift register multivibrator fabricated on a silicon gate CMOS process. It achieves high-speed operation similar to an equivalent bipolar Schottky TTL while maintaining CMOS low power consumption. The device contains an 8-bit serial-in parallel-out shift register feeding an 8-bit D-type storage register. This storage register has eight 3-state outputs. Separate clocks are provided for both the shift and storage registers. The shift register has a clear serial input for direct override, and multiple serial output (standard) pins for cascading. Both the shift and storage registers use a positive edge triggered clock. If the two clocks are interconnected, the shift register state is always one clock pulse ahead of the storage register. An input protection circuit ensures that 0V to 7V is applied to the input pins regardless of the supply voltage. This device can be used to interface 5V systems with 3V systems and both power systems, such as battery backup. This circuit prevents damage to the device due to mismatched supply and input voltages.

The FXL2SD106 is a configurable dual voltage supply converter for unidirectional and bidirectional voltage translation between two logic levels. The device enables voltage translation between as high as 3.6V and as low as 1.1V. The A port tracks the VCCA level and the B port tracks the VCCB level. Bidirectional voltage translation between multiple voltage levels: 1.2V, 1.5V, 1.8V, 2.5V and 3.3V. The device will remain 3-stated until both VCCs reach active levels, allowing either VCC to power up first. If either VCC is removed, an internal power-down control circuit places the device in 3-state. When the OE input is low, it places both the A port and the B port in a high-impedance state, thereby disabling both. The FXL2SD106 is designed so that OE and CLK IN are powered by VCCA. The device automatically senses the input signal on either the A port or the B port. The input signal is routed to another port. The FXL2SD106 is not suitable for SD card applications. Internal bus-hold circuitry conflicts with pull-up resistors. SD cards have an internal pull-up resistor on the CD/DAT3 pin.

SN74AHC240 Octal Buffer/Driver with 3-State Outputs

SN74AHC240 Octal Buffer/Driver with 3-State Outputs

Automotive 4-Channel, 2-Input, 2V to 6V Low Power NOR Gate with Schmitt Trigger Inputs 14-TSSOP -40 to 125