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PDF MM74HCT244N Data sheet ( Hoja de datos )
| Número de pieza | MM74HCT244N | |
| Descripción | Inverting Octal 3-STATE Buffer Octal 3-STATE Buffer | |
| Fabricantes | Fairchild | |
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February 1984
Revised July 1999
MM74HCT240 • MM74HCT244
Inverting Octal 3-STATE Buffer • Octal 3-STATE Buffer
General Description
The MM74HCT240 and MM74HCT244 3-STATE buffers
utilize advanced silicon-gate CMOS technology and are
general purpose high speed inverting and non-inverting
buffers. They possess high drive current outputs which
enable high speed operation even when driving large bus
capacitances. These circuits achieve speeds comparable
to low power Schottky devices, while retaining the low
power consumption of CMOS. All three devices are TTL
input compatible and have a fanout of 15 LS-TTL equiva-
lent inputs.
MM74HCT devices are intended to interface between TTL
and NMOS components and standard CMOS devices.
These parts are also plug-in replacements for LS-TTL
devices and can be used to reduce power consumption in
existing designs.
The MM74HCT240 is an inverting buffer and the
MM74HCT244 is a non-inverting buffer. Each device has
two active low enables (1G and 2G), and each enable inde-
pendently controls 4 buffers.
All inputs are protected from damage due to static dis-
charge by diodes to VCC and Ground.
Features
s TTL input compatible
s Typical propagation delay: 14 ns
s 3-STATE outputs for connection to system buses
s Low quiescent current: 80 µA
s High output drive current: 6 mA (min)
Ordering Code:
Order Number Package Number
Package Description
MM74HCT240WM
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide
MM74HCT240SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
MM74HCT240MTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
MM74HCT240N
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide
MM74HCT244WM
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide
MM74HCT244SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
MM74HCT244MTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
MM74HCT244N
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
Pin Assignments for DIP, SOIC, SOP and TSSOP
Top View
MM74HCT240
© 1999 Fairchild Semiconductor Corporation DS005365
Top View
MM74HCT244
www.fairchildsemi.com
1 page  
Physical Dimensions inches (millimeters) unless otherwise noted
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide
Package Number M20B
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
Package Number M20D
5
www.fairchildsemi.com
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet MM74HCT244N.PDF ] | |
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| Número de pieza | Descripción | Fabricantes |
| MM74HCT244 | Inverting Octal 3-STATE Buffer Octal 3-STATE Buffer | Fairchild |
| MM74HCT244MTC | Inverting Octal 3-STATE Buffer Octal 3-STATE Buffer | Fairchild |
| MM74HCT244N | Inverting Octal 3-STATE Buffer Octal 3-STATE Buffer | Fairchild |
| MM74HCT244SJ | Inverting Octal 3-STATE Buffer Octal 3-STATE Buffer | Fairchild |
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