CD4048B中文资料CMOS 多功能可扩展 8 输入门数据手册TI规格书

描述 Description

CD4048B is an 8-input gate having four control inputs. Three binary control inputs - Ka, Kb, and Kc - provide the implementation of eight different logic functions. These functions are OR, NOR, AND, NAND, OR/AND, OR/NAND, AND/OR and AND/NOR.
A fourth control input, Kd, provides the user with a 3-state output. When control input Kd is high, the output is either a logic 1 or a logic 0 depending on the inner states. When control input Kd is low, the output is an open circuit. This feature enables the user to connect this device to a common bus line.
In addition to the eight input lines, an EXPAND input is provided that permits the user to increase the number of inputs into a CD4048B (see Fig. 2). For example, two CD4048Bs can be cascaded to provide a 16-input multifunction gate. When the EXPAND input is not used, it should be connected to VSS.
The CD4048B-series types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix), 16-lead dual-in-line plastic packages (E suffix), 16-lead small-outline packages (M, M96, MT and NSR suffixes), and 16-lead thin shrink small-outline packages (PW and PWR suffixes).

特性 Features

• Three-state output
• Standardized, symmetrical output characteristics
• Maximum input current of 1 µA at 18 V (full package-temperature range), 100 nA at 18 V and 25°C
• 5-V, 10-V, and 15-V parametric ratings
• Applications
• Digital control of logic
• General-purpose gating logic - Decoding - Encoding

简介

CD4048B属于集成电路（IC）的门反相器-多功能可配置。由TI制造生产的CD4048B门和反相器 - 多功能，可配置可配置逻辑栅极系列产品能以与标准逻辑栅极类似的方式，对单个逻辑信号执行基本逻辑运算，但并非局限于一个特定功能（例如 AND、NAND 等）。它们通常在内部使用少量逻辑门来实现，经过选择和互连后，以便通过选择操作数据所应用的输入以及任何未使用的输入在驱动后的逻辑状态，来配置所实现的整体逻辑功能。