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參數(shù)資料
| 型號： | 7LVC574APWDH |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 通用總線功能 |
| 英文描述： | Octal D-type flip-flop with 5-volt tolerant inputs/outputs; positive edge-trigger 3-State |
| 中文描述： | LVC/LCX/Z SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDSO20 |
| 文件頁數(shù)： | 6/10頁 |
| 文件大小： | 99K |
| 代理商： | 7LVC574APWDH |
Philips Semiconductors
Product specification
74LVC574A
Octal D-type flip-flop with 5-volt tolerant
inputs/outputs; positive edge-trigger (3-State)
1998 Jul 29
6
AC CHARACTERISTICS
GND = 0V; t
r
= t
f
2.5ns; C
L
= 50pF; R
L
= 500
; T
amb
= –40
°
C to +85
°
C.
LIMITS
SYMBOL
PARAMETER
WAVEFORM
V
CC
= 3.3V
±
0.3V
MIN
TYP
1
V
CC
= 2.7V
MIN
V
CC
= 1.2V
TYP
UNIT
MAX
MAX
t
PHL
t
PLH
t
PZH
t
PZL
t
PHZ
t
PLZ
t
W
Propagation delay
CP to Q
n
3-State output enable time
OE to Q
n
3-State output disable time
OE to Q
n
Clock pulse width HIGH or LOW
Setup time
D
n
to CP
Hold time
D
n
to CP
Maximum clock pulse frequency
1, 4
1.5
4.8
7.0
1.5
8.0
21
ns
2, 4
1.5
4.0
7.5
1.5
8.5
17
ns
2, 4
1.5
3.5
6.0
1.5
6.5
11
ns
1
3.4
1.7
–
3.4
–
–
ns
t
SU
3
2.0
0.3
–
2.0
–
–
ns
t
h
3
1.5
–0.2
–
1.5
–
–
ns
f
max
1
100
–
80
–
–
MHz
NOTE:
1. Unless otherwise stated, all typical values are at V
CC
= 3.3V and T
amb
= 25
°
C.
AC WAVEFORMS
V
M
= 1.5V at V
CC
V
and V
OH
are the typical output voltage drop that occur with the
output load.
V
X
= V
OL
+ 0.3V at V
CC
2.7V; V
X
= V
OL
+ 0.1 V
CC
at V
CC
V
Y
= V
OH
–0.3V at V
CC
2.7V; V
Y
= V
OH
– 0.1 V
CC
at V
CC
2.7V; V
M
= 0.5 V
CC
at V
CC
2.7V.
2.7V
2.7V
t
w
t
PLH
CP INPUT
Qn OUTPUT
V
M
V
M
V
M
V
M
V
M
V
I
GND
V
OH
V
OL
SA00394
t
PHL
1/f
max
Waveform 1. Clock (CP) to output (Q
n
) propagation delays, the
clock pulse width, output transition times and the maximum
clock pulse frequency.
V
M
SW00107
V
I
GND
éééé
V
OH
ééééééé
ééééééé
ééééééé
V
M
Dn
INPUT
V
I
GND
V
M
Qn
OUTPUT
V
OL
CP
INPUT
t
su
t
h
t
su
t
h
NOTE:
The shaded areas indicate when the input is permitted to change
for predictable output performance.
Waveform 2. Data setup and hold times for the D
n
input to the
CP input.
t
PLZ
t
PZL
V
I
nOE INPUT
GND
V
CC
Q
OUTPUT
LOW-to-OFF
OFF-to-LOW
V
OL
V
OH
Q
OUTPUT
HIGH-to-OFF
OFF-to-HIGH
GND
outputs
enabled
outputs
enabled
outputs
disabled
t
PHZ
V
M
V
M
V
M
t
PZH
V
X
V
Y
SW00207
Waveform 3. 3-State enable and disable times.
TEST CIRCUIT
PULSE
GENERATOR
V
I
R
T
D.U.T.
V
O
C
L
50pF
S
1
2 x V
CC
Open
GND
500
500
V
CC
V
I
2.7V
V
CC
2.7V
2.7V – 3.6V
Test
S
1
GND
t
PLZ
/t
PZL
t
PHZ
/t
PZH
2 x V
CC
t
PLH
/t
PHL
Open
SY00003
V
CC
Waveform 4. Load circuitry for switching times.
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相關代理商/技術參數(shù) |
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| 7LVC623APWDH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octal transceiver with dual enable 3-State |
| 7LVC646APWDH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octal bus transceiver/register 3-State |
| 7LVC827APWDH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:10-bit buffer/line driver with 5-volt tolerant inputs/outputs 3-State |
| 7LVC841APWDH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:10-bit transparent latch with 5-volt tolerant inputs/outputs 3-State |
| 7LVT2241PWDH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:3.3V Octal buffer/line driver with 30ohm series termination resistors; 3-State |
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