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零件编号 | DM74LS125AN | ||
描述 | Quad 3-STATE Buffer | ||
制造商 | Fairchild Semiconductor | ||
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1 Page
August 1986
Revised March 2000
DM74LS125A
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-imped-
ance state to the bus line. Thus the output will act neither
as a significant load nor as a driver. To minimize the possi-
bility 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 Package Number
Package Description
DM74LS125AM
M14A
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow
DM74LS125ASJ
M14D
14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
DM74LS125AN
N14A
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
AC
LL
HL
XH
H = HIGH Logic Level
L = LOW Logic Level
X = Either LOW or HIGH Logic Level
Hi-Z = 3-STATE (Outputs are disabled)
Output
Y
L
H
Hi-Z
© 2000 Fairchild Semiconductor Corporation DS006387
www.fairchildsemi.com
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页数 | 5 页 | ||
下载 | [ DM74LS125AN.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
DM74LS125A | Quad 3-STATE Buffer | Fairchild Semiconductor |
DM74LS125A | Quad TRI-STATE Buffers | National Semiconductor |
DM74LS125AM | Quad 3-STATE Buffer | Fairchild Semiconductor |
DM74LS125AN | Quad 3-STATE Buffer | Fairchild Semiconductor |
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