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Número de pieza | HD74HC540 | |
Descripción | Octal Buffers/Line Drivers | |
Fabricantes | Renesas | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de HD74HC540 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
No Preview Available ! HD74HC540, HD74HC541
Octal Buffers/Line Drivers (with 3-state outputs)
REJ03D0628-0200
(Previous ADE-205-508)
Rev.2.00
Mar 30, 2006
Description
The HD74HC540 is an inverting buffer and the HD74HC541 is a non-inverting buffer. The 3-state control gate
operates as a two-input NOR such that if either G1 or G2 are high, all eight outputs are in the high-impedance state.
Features
• High Speed Operation: tpd = 11.5 ns typ (CL = 50 pF)
• High Output Current: Fanout of 15 LSTTL Loads
• Wide Operating Voltage: VCC = 2 to 6 V
• Low Input Current: 1 µA max
• Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)
• Ordering Information
Part Name
Package Type
Package Code
(Previous Code)
Package
Abbreviation
HD74HC540P
HD74HC541P
DILP-20 pin
PRDP0020AC-B P
(DP-20NEV)
HD74HC540FPEL
SOP-20 pin (JEITA)
HD74HC541FPEL
PRSP0020DD-B
(FP-20DAV)
FP
HD74HC540RPEL
SOP-20 pin (JEDEC)
HD74HC541RPEL
PRSP0020DC-A
(FP-20DBV)
RP
HD74HC540TELL
TSSOP-20 pin
HD74HC541TELL
PTSP0020JB-A
(TTP-20DAV)
T
Note: Please consult the sales office for the above package availability.
Taping Abbreviation
(Quantity)
—
EL (2,000 pcs/reel)
EL (1,000 pcs/reel)
ELL (2,000 pcs/reel)
Function Table
Inputs
G1 G2
LL
LL
HX
XH
H : high level
L : low level
X : irrelevant
Z : off (high-impedance) state of a 3-state output
A
L
H
X
X
Output Y
HD74HC540
HD74HC541
HL
LH
ZZ
ZZ
Rev.2.00 Mar 30, 2006 page 1 of 8
1 page HD74HC540, HD74HC541
Waveforms
HD74HC540
• Waveform – 1
tr
Input A
10 %
90 %
50 %
tPHL
tf
90 %
50 %
10 %
tPLH
Output Y
90 %
50 %
10 %
50 %
10 %
90 %
tTHL
tTLH
• Waveform – 2
tf
Input G
90 %
50 %
10 %
tZL
tr
10 %
90 %
50 %
tLZ
Waveform - A
Waveform - B
50 %
tZH
50 %
10 %
tHZ
90 %
VCC
0V
VOH
VOL
VCC
0V
VOH
VOL
VOH
VOL
Notes : 1. Input waveform : PRR ≤ 1 MHz, duty cycle 50%, tr ≤ 6 ns, tf ≤ 6 ns
2. Waveform - A is for an output with internal conditions such that the
output is low except when disabled by the output control.
3. Waveform - B is for an output with internal conditions such that the
output is high except when disabled by the output control.
4. The output are measured one at a time with one transition per measurement.
Rev.2.00 Mar 30, 2006 page 5 of 8
5 Page |
Páginas | Total 9 Páginas | |
PDF Descargar | [ Datasheet HD74HC540.PDF ] |
Número de pieza | Descripción | Fabricantes |
HD74HC540 | Octal Buffers/Line Drivers (with 3-state outputs) | Hitachi Semiconductor |
HD74HC540 | Octal Buffers/Line Drivers | Renesas |
HD74HC541 | Octal Buffers/Line Drivers (with 3-state outputs) | Hitachi Semiconductor |
HD74HC541 | Octal Buffers/Line Drivers | Renesas |
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