SN74CB3T3245 - Texas Instruments

SN74CB3T3245 8-Bit FET Bus Switch

The SN74CB3T3245 device is a high-speed TTLcompatible 8-bit FET bus switch with low ON-state resistance (ron), allowing for minimal propagation delay. The device fully supports mixed-mode signal operation on all data I/O ports by providing voltage translation that tracks VCC. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) SN74CB3T3245DBQ SSOP.

Features

•1 Standard '245-Type Pinout
• Output Voltage Translation Tracks VCC
• Supports Mixed-Mode Signal Operation on All Data I/O Ports
  – 5-V Input Down to 3.3-V Output Level Shift With 3.3-V VCC
  – 5-V/3.3-V Input Down to 2.5-V Output Level Shift With 2.5-V VCC
• 5-V-Tolerant I/Os With Device Powered Up or Powered Down
• Bidirectional Data Flow With Near-Zero Propagation Delay
• Low ON-State Resistance (ron) Characteristics (ron = 5 Ω Typical)
• Low Input/Output Capacitance Minimizes Loading (Cio(OFF) = 5 pF Typical)
• Data and Control Inputs Provide Undershoot Clamp Diodes
• Low Power Consumption (.