器件名称:
74HC541
功能描述:
Inverting Octal 3-STATE Buffer Octal 3-STATE Buffer
文件大小:
89.66KB 共6页
简 介:
MM74HC540 MM74HC541 Inverting Octal 3-STATE Buffer Octal 3-STATE Buffer September 1983 Revised February 1999 MM74HC540 MM74HC541 Inverting Octal 3-STATE Buffer Octal 3-STATE Buffer General Description The MM74HC540 and MM74HC541 3-STATE buffers utilize advanced silicon-gate CMOS technology. They possess high drive current outputs which enable high speed operation even when driving large bus capacitances. These circuits achieve speeds comparable to low power Schottky devices, while retaining the advantage of CMOS circuitry, i.e., high noise immunity, and low power consumption. Both devices have a fanout of 15 LS-TTL equivalent inputs. The MM74HC540 is an inverting buffer and the MM74HC541 is a non-inverting buffer. The 3-STATE control gate operates as a two-input NOR such that if either G1 or G2 are HIGH, all eight outputs are in the high-impedance state. In order to enhance PC board layout, the MM74HC540 and MM74HC541 offers a pinout having inputs and outputs on opposite sides of the package. All inputs are protected from damage due to static discharge by diodes to VCC and ground. Features s Typical propagation delay: 12 ns s 3-STATE outputs for connection to system buses s Wide power supply range: 2–6V s Low quiescent current: 80 A maximum (74HC Series) s Output current: 6 mA Ordering Code: Order Number MM74HC540WM MM74HC540SJ MM74HC540MTC MM74HC540N MM74HC541WM MM74HC541SJ MM74HC541MTC MM74HC541N Package Number M20B M20D MTC20 N20A M20B M20D MTC20 N20A Package Descr……
