SN74CB3T3245PWR

The SN74CB3T3245 is a high-speed TTL-compatible 8-bit FET bus switch with low on-state resistance (ron), enabling minimal propagation delay. The device provides voltage translation that tracks VCC, with full support for mixed-voltage signal operation across all data I/O ports.

Applications

• Digital applications: level shifting, PCI interface, USB interface, memory interleaving, bus isolation

Key features

• Standard 245-type pinout
• Output voltage translation tracks VCC
• Mixed-mode signal operation on all data I/O ports
• 5V-to-3.3V output level shifting, VCC at 3.3V
• 5V/3.3V-to-2.5V output level shifting, VCC at 2.5V
• 5V-tolerant I/O supporting device power-up and power-down
• Bidirectional data flow with near-zero propagation delay
• Low on-state resistance (ron), (ron typical = 5Ω)
• Low I/O capacitance for reduced loading (Cio(OFF) typical = 5pF)
• Undershoot clamp diodes on data and control inputs
• Low power consumption (ICC max = 40μA)
• VCC operating voltage range: 2.3V to 3.6V
• Data I/O supports 0V to 5V signal levels (0.8V, 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V)
• Control inputs drivable by TTL or 5V/3.3V CMOS outputs
• Ioff supports partial power-down mode operation
• Latch-up performance exceeds 250mA per JESD17
• ESD performance tested per JESD22
• 2000V Human Body Model (A114-B, Class II)
• 1000V Charged Device Model (C101)
• Ideal for low-power portable devices