The TC74VCX163245(BELF is a 16-bit dual-supply bus transceiver with configurable voltage translation. This device is designed for bi-directional asynchronous communication between data buses where different logic levels are used. It is part of Toshiba's VCX family, known for its very high-speed operation and low power consumption. The '(BELF' likely designates a specific packaging or ordering option. It supports partial power-down operation, allowing for significant energy savings in portable and battery-powered applications.

Applications

• Level translation between 1.8V, 2.5V, 3.3V, and 5V systems
• Data bus isolation
• Bi-directional data transfer
• Mixed-voltage systems
• Mobile communication devices

Features

• Dual-supply operation: VCCA = 1.65V to 3.6V, VCCB = 2.3V to 5.5V
• High-speed operation: tpd = 3.0 ns (typical) at VCC = 3.3V
• Bi-directional level translation
• Low power consumption: ICC = 10 μA (maximum)
• Partial power-down support
• Output impedance control

Benefits

• Seamless integration of different voltage level systems
• Improved system performance due to high-speed operation
• Reduced power consumption, extending battery life in portable devices
• Flexible design options with bi-directional level translation
• Enhanced system reliability with partial power-down support

Additional Details

The TC74VCX163245(BELF features two sets of supply voltage pins (VCCA and VCCB), allowing independent voltage settings for the A and B ports. The direction of data flow is controlled by the DIR input. When DIR is high, data is transferred from A to B; when DIR is low, data is transferred from B to A. The output enable (OE) input controls the output state. When OE is low, the outputs are enabled; when OE is high, the outputs are in the high-impedance state. The device's inputs are tolerant to 5.5 V, allowing interface with 5 V logic circuits even when operating at lower supply voltages. The operating temperature range is -40°C to +85°C, making it suitable for a wide range of environments. The input capacitance is low, reducing the load on the driving circuits. The device supports a wide operating temperature, and it is RoHS compliant.