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PDF MM74HCT540N Data sheet ( Hoja de datos )
| Número de pieza | MM74HCT540N | |
| Descripción | Inverting Octal 3-STATE Buffer Octal 3-STATE Buffer | |
| Fabricantes | Fairchild | |
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February 1984
Revised February 1999
MM74HCT540 • MM74HCT541
Inverting Octal 3-STATE Buffer • Octal 3-STATE Buffer
General Description
The MM74HCT540 and MM74HCT541 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. Both devices are TTL input
compatible and have a fanout of 15 LS-TTL equivalent
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 MM74HCT540 is an inverting buffer and the
MM74HCT541 is a non-inverting buffer. The 3-STATE con-
trol gate operates as a two-input NOR such that if either G1
or G2 are HIGH, all eight outputs are in the high-imped-
ance state.
In order to enhance PC board layout, the MM74HCT540
and MM74HCT541 offers a pinout having inputs and out-
puts on opposite sides of the package. All inputs are pro-
tected from damage due to static discharge by diodes to
VCC and ground.
Features
s TTL input compatible
s Typical propagation delay: 12 ns
s 3-STATE outputs for connection to system buses
s Low quiescent current: 80 µA
s Output current: 6 mA (min.)
Ordering Code:
Order Number Package Number
Package Description
MM74HCT540WM
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide
MM74HCT540SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
MM74HCT540MTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
MM74HCT540N
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide
MM74HCT541WM
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide
MM74HCT541SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
MM74HCT541MTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
MM74HCT541N
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
MM74HCT540
© 1999 Fairchild Semiconductor Corporation DS006040.prf
Top View
MM74HCT541
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
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| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet MM74HCT540N.PDF ] | |
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| MM74HCT540 | Inverting Octal 3-STATE Buffer | Fairchild |
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| MM74HCT540N | Inverting Octal 3-STATE Buffer Octal 3-STATE Buffer | Fairchild |
| MM74HCT540SJ | Inverting Octal 3-STATE Buffer Octal 3-STATE Buffer | Fairchild |
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