器件名称:
74HC4049
功能描述:
Hex inverting high-to-low level shifter
文件大小:
41.57KB 共7页
简 介:
INTEGRATED CIRCUITS DATA SHEET For a complete data sheet, please also download: The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications The IC06 74HC/HCT/HCU/HCMOS Logic Package Information The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines 74HC4049 Hex inverting high-to-low level shifter Product specication File under Integrated Circuits, IC06 December 1990 Philips Semiconductors Product specication Hex inverting high-to-low level shifter FEATURES Output capability: standard ICC category: SSI GENERAL DESCRIPTION The 74HC4049 is a high-speed Si-gate CMOS device and is pin compatible with the “4049” of the “4000B” series. It is specified in compliance with JEDEC standard no. 7A. The 74HC4049 provides six inverting buffers with a modified input protection structure, which has no diode connected to VCC. Input voltages of up to 15 V may therefore be used. 74HC4049 This feature enables the inverting buffers to be used as logic level translators, which will convert high level logic to low level logic, while operating from a low voltage power supply. For example 15 V logic (“4000B series”) can be converted down to 2 V logic. The actual input switch level remains related to the VCC and is the same as mentioned in the family characteristics. At the same time each part can be used as a simple inverter without level translation. APPLICATIONS Converting 15 V logic (“4000B” series) down to 2 V logic. QUICK REFERENCE DATA GND = 0 V; Tamb = 25 °C; tr = tf = 6 ns TYPICAL SYMBO……
