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Fairchild Semiconductor Electronic Components Datasheet

74F241 Datasheet

Octal Buffers/Line Drivers

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April 1988
Revised July 1999
74F240 • 74F241 • 74F244
Octal Buffers/Line Drivers with 3-STATE Outputs
General Description
The 74F240, 74F241 and 74F244 are octal buffers and line
drivers designed to be employed as memory and address
drivers, clock drivers and bus-oriented transmitters/receiv-
ers which provide improved PC and board density.
Features
s 3-STATE outputs drive bus lines or buffer memory
address registers
s Outputs sink 64 mA (48 mA mil)
s 12 mA source current
s Input clamp diodes limit high-speed termination effects
Ordering Code:
Order Code Package Number
Package Description
74F240SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74F240SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74F240PC
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
74F241SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74F241SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74F241PC
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
74F244SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74F244SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74F244MSA
MSA20
20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide
74F244PC
N20A
20-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 Diagrams
74F240
74F241
74F244
© 1999 Fairchild Semiconductor Corporation DS009501
www.fairchildsemi.com


Fairchild Semiconductor Electronic Components Datasheet

74F241 Datasheet

Octal Buffers/Line Drivers

No Preview Available !

Logic Symbols
IEEE/IEC
74F240
IEEE/IEC
74F241
IEEE/IEC
74F244
Unit Loading/Fan Out
Pin Names
Description
U.L.
HIGH/LOW
Input IIH/IIL
Output IOH/IOL
OE1, OE2
3-STATE Output Enable Input (Active LOW)
1.0/1.667
20 µA/1 mA
OE2
3-STATE Output Enable Input (Active HIGH)
1.0/1.667
20 µA/1 mA
I0–I7
Inputs (74F240)
1.0/1.667 (Note 1)
20 µA/1 mA
I0–I7
Inputs (74F241, 74F244)
1.0/2.667 (Note 1) 20 µA/1.6 mA
O0–O7, O0–O7 Outputs
600/106.6 (80) 12 mA/64 mA (48 mA)
Note 1: Worst-case 74F240 enabled; 74F241, 74F244 disabled
Truth Tables
74F240
74F244
OE1 D1n O1n OE2 D2n O2n
OE1 D1n O1n OE2 D2n O2n
HXZHXZ
HXZHXZ
LHL LHL
L HH L HH
L LHL LH
LLLLLL
OE1
H
D1n
X
74F241
O1n OE2
ZL
D2n
X
O2n
Z
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
L HHHHH
L L LHL L
www.fairchildsemi.com
2


Part Number 74F241
Description Octal Buffers/Line Drivers
Maker Fairchild
Total Page 7 Pages
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