器件名称:
DM74ALS244AMSA
功能描述:
Octal 3-STATE Bus Driver
文件大小:
73.25KB 共6页
简 介:
DM74ALS244A Octal 3-STATE Bus Driver September 1986 Revised February 2000 DM74ALS244A Octal 3-STATE Bus Driver General Description This octal 3-STATE bus driver is designed to provide the designer with flexibility in implementing a bus interface with memory, microprocessor, or communication systems. This device offers 64-extended temperature Grade product guaranteeing performance from 40°C to +85°C. The output 3-STATE gating control is organized into two separate groups of four buffers, and both control inputs enable the respective outputs when set logic LOW. The 3-STATE circuitry contains a feature that maintains the buffer outputs in 3-STATE (high impedance state) during power supply ramp-up or ramp-down. This eliminates bus glitching problems that arise during power-up and power-down. Features s Advanced low power Schottky TTL process oxide-isolated ion-implanted s Functional and pin compatible with the 74LS counterpart s Improved switching performance with less power dissipation compared with the 74LS counterpart s Switching response specified into 500 and 50 pF load s Switching response specifications guaranteed over full temperature and VCC supply range s PNP input design reduces input loading Ordering Code: Order Number DM74ALS244AWM DM74ALS244ASJ DM74ALS244AMSA DM74ALS244AN Package Number M20B M20D MSA20 N20A Package Description 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 2……
