mm74hc244 Fairchild Semiconductor, mm74hc244 Datasheet

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mm74hc244

Manufacturer Part Number
mm74hc244
Description
Mm74hc244 Octal 3-state Buffer
Manufacturer
Fairchild Semiconductor
Datasheet

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© 2005 Fairchild Semiconductor Corporation
MM74HC244WM
MM74HC244SJ
MM74HC244MTC
MM74HC244N
MM74HC244
Octal 3-STATE Buffer
General Description
The MM74HC244 is a non-inverting buffer and has two
active low enables (1G and 2G); each enable indepen-
dently controls 4 buffers. This device does not have
Schmitt trigger inputs.
These 3-STATE buffers utilize advanced silicon-gate
CMOS technology and are general purpose high speed
non-inverting buffers. They possess high drive current out-
puts which enable high speed operation even when driving
large bus capacitances. These circuits achieve speeds
comparable to low power Schottky devices, while retaining
the advantage of CMOS circuitry, i.e., high noise immunity,
and low power consumption. All three devices have a
fanout of 15 LS-TTL equivalent inputs.
All inputs are protected from damage due to static dis-
charge by diodes to V
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Order Number
Package Number
CC
MTC20
Top View
and ground.
M20D
M20B
N20A
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
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
DS005327
Features
Truth Table
H
L
Z
Typical propagation delay: 14 ns
3-STATE outputs for connection to system buses
Wide power supply range: 2–6V
Low quiescent supply current: 80
Output current: 6 mA
LOW Level
High Impedance
HIGH Level
Package Description
1G
H
H
L
L
1A
H
H
L
L
1Y
H
L
Z
Z
September 1983
Revised May 2005
2G
H
H
L
L
P
A
www.fairchildsemi.com
2A
H
H
L
L
2Y
H
L
Z
Z

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mm74hc244 Summary of contents

Page 1

... MM74HC244 Octal 3-STATE Buffer General Description The MM74HC244 is a non-inverting buffer and has two active low enables (1G and 2G); each enable indepen- dently controls 4 buffers. This device does not have Schmitt trigger inputs. These 3-STATE buffers utilize advanced silicon-gate CMOS technology and are general purpose high speed non-inverting buffers ...

Page 2

Logic Diagram www.fairchildsemi.com 2 ...

Page 3

Absolute Maximum Ratings (Note 2) Supply Voltage ( Input Voltage ( Output Voltage (V ) OUT Clamp Diode Current ( Output Current, per pin (I ) ...

Page 4

AC Electrical Characteristics q 5V Symbol Parameter Maximum Propagation PHL PLH Delay Maximum Enable Delay PZH PZL to Active Output t , ...

Page 5

Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide 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 Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Package Number MTC20 7 www.fairchildsemi.com ...

Page 8

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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