器件名称: DM74LS126AN
功能描述: Quad 3-STATE Buffer
文件大小: 48.13KB 共4页
简 介:DM74LS126A Quad 3-STATE Buffer
August 1986 Revised March 2000
DM74LS126A Quad 3-STATE Buffer
General Description
This device contains four independent gates each of which performs a non-inverting buffer function. The outputs have the 3-STATE feature. When enabled, the outputs exhibit the low impedance characteristics of a standard LS output with additional drive capability to permit the driving of bus lines without external resistors. When disabled, both the output transistors are turned OFF presenting a high-impedance state to the bus line. Thus the output will act neither as a significant load nor as a driver. To minimize the possibility that two outputs will attempt to take a common bus to opposite logic levels, the disable time is shorter than the enable time of the outputs.
Ordering Code:
Order Number DM74LS126AM DM74LS126AN Package Number M14A N14A Package Description 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Function Table
Y=A Inputs A L H X C H H L Output Y L H Hi-Z
H = HIGH Logic Level L = LOW Logic Level X = Either LOW or HIGH Logic Level Hi-Z = 3-STATE (Outputs are disabled)
2000 Fairchild Semiconductor Corporation
DS006388
www.fairchildsemi.com
DM74LS126A
Absolute Maximum Ratings(Note 1)
Supply Voltage Input Voltage Operating……
