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74AC240 Datasheet

  • 74AC240

  • Octal Buffer/Line Driver with 3-STATE Outputs

  • 8頁

  • FAIRCHILD

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74AC240 鈥?74ACT240 Octal Buffer/Line Driver with 3-STATE Outputs
November 1988
Revised November 1999
74AC240 鈥?74ACT240
Octal Buffer/Line Driver with 3-STATE Outputs
General Description
The AC/ACT240 is an octal buffer and line driver designed
to be employed as a memory address driver, clock driver
and bus oriented transmitter or receiver which provides
improved PC board density.
Features
s
I
CC
and I
OZ
reduced by 50%
s
Inverting 3-STATE outputs drive bus lines or buffer
memory address registers
s
Outputs source/sink 24 mA
s
ACT240 has TTL-compatible inputs
Ordering Code:
Order Number
74AC240SC
74AC240SJ
74AC240MTC
74AC240PC
74ACT240SC
74ACT240SJ
74ACT240MTC
74ACT240PC
Package Number
M20B
M20D
MTC20
N20A
M20B
M20D
MTC20
N20A
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300鈥?Wide Body
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153,4.4mm Wide
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300鈥?Wide
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300鈥?Wide Body
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153,4.4mm Wide
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300鈥?Wide
Device also available in Tape and Reel. Specify by appending suffix letter 鈥淴鈥?to the ordering code.
Logic Symbol
IEEE/IEC
Pin Descriptions
Pin Names
OE
1
, OE
2
I
0
鈥揑
7
O
0
鈥揙
7
Description
3-STATE Output Enable Inputs
Inputs
Outputs
Truth Tables
Inputs
OE
1
L
L
I
n
L
H
X
Inputs
OE
2
L
L
H
H
=
HIGH Voltage Level
L
=
LOW Voltage Level
X
=
Immaterial
Z
=
High Impedance
Outputs
(Pins 12, 14, 16, 18)
H
L
Z
Outputs
I
n
L
H
X
(Pins 3, 5, 7, 9)
H
L
Z
Connection Diagram
H
FACT錚?is a trademark of Fairchild Semiconductor Corporation.
漏 1999 Fairchild Semiconductor Corporation
DS009941
www.fairchildsemi.com

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