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PDF MM74HC244WM Data sheet ( Hoja de datos )
| Número de pieza | MM74HC244WM | |
| Descripción | Octal 3-STATE Buffer | |
| Fabricantes | Fairchild | |
| Logotipo |  |
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September 1983
Revised May 2005
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 VCC and ground.
Features
s Typical propagation delay: 14 ns
s 3-STATE outputs for connection to system buses
s Wide power supply range: 2–6V
s Low quiescent supply current: 80 PA
s Output current: 6 mA
Ordering Code:
Order Number Package Number
Package Description
MM74HC244WM
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
MM74HC244SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
MM74HC244MTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
MM74HC244N
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 Diagram
Truth Table
1G 1A 1Y 2G 2A 2Y
LLLLLL
LHHLHH
HL ZHL Z
HHZHHZ
H HIGH Level
L LOW Level
Z High Impedance
Top View
© 2005 Fairchild Semiconductor Corporation DS005327
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
5 www.fairchildsemi.com
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet MM74HC244WM.PDF ] | |
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