Product Overview MC74VHCT245A: Octal Bus Transceiver For complete documentation, see the data sheet Product Description The MC74VHCT245A is an advanced high speed CMOS octal bus transceiver fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation. It is intended for two-way asynchronous communication between data buses. The direction of data transmission is determined by the level of the DIR input. The output enable pin (OE) can be used to disable the device, so that the buses are effectively isolated. All inputs are equipped with protection circuits against static discharge. The VHCT inputs are compatible with TTL levels. This device can be used as a level converter for interfacing 3.3V to 5.0V, because it has full 5V CMOS level output swings. The VHCT245A input and output (when disabled) structures provide protection when voltages between 0V and 5.5V are applied, regardless of the supply voltage. These input and output structures help prevent device destruction caused by supply voltage input/output voltage mismatch, battery backup, hot insertion, etc. Features • • • • • • • • • • High Speed: tPD = 4.9ns (Typ) at VCC = 5V Low Power Dissipation: ICC = 4µA (Max) at TA = 25 C High Noise Immunity: VNIH = VNIL = 28% VCC Power Down Protection Provided on Inputs and Outputs Balanced Propagation Delays Designed for 2V to 5.5V Operating Range Low Noise: VOLP = 1.2V (Max) Pin and Function Compatible with Other Standard Logic Families Latchup Performance Exceeds 300mA ESD Performance: HBM > 2000V; Machine Model > 200V For more features, see the data sheet Part Electrical Specifications Product Compliance Status Channels Output VCC Min (V) VCC Max (V) tpd Max (ns) IO Max (mA) Package Type MC74VHCT245ADTG Pb-free Active 1 CMOS 4.5 5.5 8.7 8 TSSOP-20 Active 1 CMOS 4.5 5.5 8.7 8 TSSOP-20 Active 1 CMOS 4.5 5.5 8.7 8 SOIC-20W Active 1 CMOS 4.5 5.5 8.7 8 SOIC-20W Halide free MC74VHCT245ADTR G Pb-free MC74VHCT245ADWG Pb-free Halide free Halide free MC74VHCT245ADWR G Pb-free Halide free For more information please contact your local sales support at www.onsemi.com Created on: 6/30/2016