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PDF HD74HC273 Data sheet ( Hoja de datos )
| Número de pieza | HD74HC273 | |
| Descripción | Octal D-type Flip-Flops | |
| Fabricantes | Renesas | |
| Logotipo |  |
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HD74HC273
Octal D-type Flip-Flops (with Clear)
REJ03D0604-0300
Rev.3.00
Mar 25, 2009
Description
This device contains 8 master-slave flip-flops with a common clock and common clear. Data on the D input having the
specified setup and hold times is transferred to the Q output on the low to high transition of the clock input. The clear
input when low, sets all outputs to a low state.
Features
• High Speed Operation: tpd (Clock to Q) = 18 ns typ (CL = 50 pF)
• High Output Current: Fanout of 10 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)
HD74HC273P
DILP-20 pin
PRDP0020AC-B
(DP-20NEV)
HD74HC273FPEL
SOP-20 pin (JEITA)
PRSP0020DD-B
(FP-20DAV)
HD74HC273RPEL
SOP-20 pin (JEDEC)
PRSP0020DC-A
(FP-20DBV)
HD74HC273TELL
TSSOP-20 pin
PTSP0020JB-A
(TTP-20DAV)
Note: Please consult the sales office for the above package availability.
Package
Abbreviation
P
FP
RP
T
Taping Abbreviation
(Quantity)
—
EL (2,000 pcs/reel)
EL (1,000 pcs/reel)
ELL (2,000 pcs/reel)
Function Table
Note
Inputs
Clear
Clock
LX
H
H
HL
H
1. H: high level, L: low level, X: irrelevant
D
X
H
L
X
X
Output
Q
L
H
L
No change
No change
REJ03D0604-0300 Rev.3.00 Mar 25, 2009
Page 1 of 7
1 page  
HD74HC273
Waveforms
• Waveform – 1
tr
tf
Data
Clock
Q
10 %
90 %
50 %
tsu
90 %
50 %
th
10 %
tsu
50 %
th
tr
10 %
tf
90 %
50 % 50 %
tw
10 %
tw
tPLH
50 %
10 %
90 %
50 %
tPHL
90 %
50 %
10 %
tTLH
tTHL
VCC
0V
VCC
0V
VOH
VOL
• Waveform – 2
Clear
Clock
Q
tf tr
90 %
50 %
10 %
tw
tPHL
90 %
50 %
10 %
trem
90 %
tw(clock)
50 % 50 %
10 %
90 %
tf tr tPLH
90 %
50 %
10 %
50 %
10 %
90 %
tTHL
tTLH
VCC
0V
VCC
0V
VOH
VOL
Notes : 1. Input pulse : PRR ≤ 1 MHz, Zo = 50 Ω, tr ≤ 6 ns, tf ≤ 6 ns
2. The output are measured one at a time with one transition per measurement.
REJ03D0604-0300 Rev.3.00 Mar 25, 2009
Page 5 of 7
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet HD74HC273.PDF ] | |
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