器件名称:
74VHCT373AMTC
功能描述:
Octal D-Type Latch with 3-STATE Outputs
文件大小:
90.87KB 共8页
简 介:
74VHCT373A Octal D-Type Latch with 3-STATE Outputs July 1997 Revised April 2005 74VHCT373A Octal D-Type Latch with 3-STATE Outputs General Description The VHCT373A is an advanced high speed CMOS octal Dtype latch with 3-STATE output fabricated with silicon gate CMOS technology. It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. This 8-bit D-type latch is controlled by a latch enable input (LE) and an output enable input (OE). The latches appear transparent to data when latch enable (LE) is HIGH. When LE is LOW, the data that meets the setup time is latched. When the OE input is HIGH, the eight outputs are in a high impedance state. Protection circuits ensure that 0V to 7V can be applied to the input and output (Note 1) pins without regard to the supply voltage. This device can be used to interface 3V to 5V systems and two supply systems such as battery back up. This circuit prevents device destruction due to mismatched supply and input voltages. Note 1: Outputs in OFF-State. Features s High speed: tPD 7.7 ns (typ) at TA 2.0V, VIL 25qC 0.8V s High Noise Immunity: VIH s Power Down Protection is provided on all inputs and outputs s Low Power Dissipation: ICC 4 PA (max) @ TA 25qC s Pin and Function Compatible with 74HCT373 Ordering Code: Order Number 74VHCT373AM 74VHCT373ASJ 74VHCT373AMTC 74VHCT373AN Package Number M20B M20D MTC20 N20A Package Description 20-Lead Small Outline Integrated Ci……
