74ACT244 Fairchild Semiconductor, 74ACT244 Datasheet

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74ACT244

Manufacturer Part Number
74ACT244
Description
Manufacturer
Fairchild Semiconductor
Datasheet

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© 1999 Fairchild Semiconductor Corporation
74AC244 • 74ACT244
Octal Buffer/Line Driver with 3-STATE Outputs
General Description
The AC/ACT244 is an octal buffer and line driver designed
to be employed as a memory address driver, clock driver
and bus-oriented transmitter/receiver which provides
improved PC board density.
Ordering Code:
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Logic Symbol
Connection Diagram
FACT
Order Number
74AC244SC
74AC244SJ
74AC244MTC
74AC244PC
74ACT244SC
74ACT244SJ
74ACT244MSA
74ACT244MTC
74ACT244PC
is a trademark of Fairchild Semiconductor Corporation.
Package Number
MTC20
MSA20
MTC20
IEEE/IEC
M20D
M20B
M20B
M20D
N20A
N20A
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” 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” Wide
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide Body
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Shrink Small Outline Package (SSOP), 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” Wide
DS009943
Features
Pin Descriptions
Truth Tables
X
Z
I
3-STATE outputs drive bus lines or buffer memory
address registers
Outputs source/sink 24 mA
ACT244 has TTL-compatible inputs
Immaterial
High Impedance
CC
OE
I
O
0
Pin Names
–I
0
–O
and I
1
7
Package Description
OE
OE
, OE
H
H
L
L
L
L
7
1
2
OZ
2
Inputs
Inputs
reduced by 50%
3-STATE Output Enable Inputs
Inputs
Outputs
I
H
X
I
H
X
L
L
n
n
November 1988
Revised November 1999
Description
(Pins 12, 14, 16, 18)
(Pins 3, 5, 7, 9)
Outputs
Outputs
www.fairchildsemi.com
H
H
L
Z
L
Z

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74ACT244 Summary of contents

Page 1

... Octal Buffer/Line Driver with 3-STATE Outputs General Description The AC/ACT244 is an octal buffer and line driver designed to be employed as a memory address driver, clock driver and bus-oriented transmitter/receiver which provides improved PC board density. Ordering Code: Order Number Package Number ...

Page 2

Absolute Maximum Ratings Supply Voltage ( Input Diode Current ( 0. 0. Input Voltage ( Output Diode Current ( ...

Page 3

DC Electrical Characteristics for ACT V CC Symbol Parameter (V) V Minimum HIGH Level 4.5 IH Input Voltage 5.5 V Maximum LOW Level 4.5 IL Input Voltage 5.5 V Minimum HIGH Level 4.5 OH Output Voltage 5.5 4.5 5.5 V ...

Page 4

AC Electrical Characteristics for Symbol Parameter (V) (Note 7) t Propagation Delay 3.3 PLH Data to Output 5.0 t Propagation Delay 3.3 PHL Data to Output 5.0 t Output Enable Time 3.3 PZH 5.0 t Output Enable ...

Page 5

Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide Body Package Number M20B 5 www.fairchildsemi.com ...

Page 6

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide www.fairchildsemi.com Package Number M20D 6 ...

Page 7

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide Package Number MSA20 7 www.fairchildsemi.com ...

Page 8

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide www.fairchildsemi.com Package Number MTC20 8 ...

Page 9

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right ...

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