74abth16821adl NXP Semiconductors, 74abth16821adl Datasheet - Page 6

• Manufacturer Part Number: 74abth16821adl
• Description: 20-bit Bus-interface D-type Flip-flop; Positive-edge Trigger 3-state
• Manufacturer: NXP Semiconductors

Philips Semiconductors
AC CHARACTERISTICS
GND = 0V, t
AC SETUP REQUIREMENTS
GND = 0V, t
AC WAVEFORMS
1998 Feb 27
nDx
SYMBOL
f
t
t
t
t
t
t
t
t
t
t
t
t
nCP
nQx
SYMBOL
CP
MAX
PLH
PHL
PZH
PZL
PHZ
PLZ
s
s
h
h
w
w
20-bit bus-interface D-type flip-flop;
positive-edge trigger (3-State)
(H)
(L)
(H)
(L)
(H)
(L)
Waveform 1. Propagation Delay, Clock Input to Output,
Clock Pulse Width, and Maximum Clock frequency
V
R
R
Waveform 2. Data Setup and Hold Times
t
M
PH
t
w
= t
= t
(H)
Maximum clock frequency
Propagation delay
nCP to nQx
Output enable time
to High and Low level
Output disable time
from High and Low level
L
Setup time, High or Low
nDx to nCP
Hold time, High or Low
nDx to nCP
nCP pulse width
High or Low
t
V
F
F
s
(H)
M
= 2.5ns, C
= 2.5ns, C
1/f
MAX
V
V
PARAMETER
t
V
M
h
M
V
(H)
M
PARAMETER
M
t
w
(L)
L
L
= 50pF, R
= 50pF, R
V
M
t
PLH
t
V
s
(L)
L
L
M
= 500
= 500
V
V
t
h
V
M
(L)
M
M
WAVEFORM
V
WAVEFORM
3.0V or V
whichever
is less
0V
V
3.0V or V
whichever
is less
0V
3.0V or V
whichever
is less
0V
OH
1
1
3
4
3
4
OL
SH00005
SH00006
2
2
1
CC
CC
CC
6
MIN
160
nOE
1.3
1.1
1.4
1.2
1.6
1.3
nQx
nOE
nQx
Waveform 3. 3-State Output Enable Time to High Level
Waveform 4. 3-State Output Enable Time to Low Level
MIN
T
1.8
1.8
1.0
1.0
2.5
2.5
V
amb
T
V
CC
amb
CC
and Output Disable Time from High Level
TYP
and Output Disable Time from Low Level
250
2.4
2.0
2.5
2.3
3.2
2.3
= +5.0V
= +25
= +5.0V
= +25
o
TYP
–0.9
–1.0
C
o
1.2
0.8
0.8
1.0
V
V
C
M
M
t
t
LIMITS
PZL
PZH
MAX
3.3
2.6
3.3
3.0
4.1
3.1
LIMITS
T
V
V
amb
V
MIN
M
CC
1.8
1.8
1.0
1.0
2.5
2.5
M
V
CC
MIN
160
1.3
1.1
1.4
1.2
1.6
1.3
= -40 to +85
= +5.0V 0.5V
T
74ABTH16821A
amb
V
= +5.0V 0.5V
V
t
M
PLZ
t
74ABT16821A
M
PHZ
+85
= -40 to
o
MAX
C
MAX
3.7
3.0
4.1
3.7
4.8
3.3
Product specification
o
C
V
V
V
V
X
OL
OH
Y
3.0V or V
whichever
is less
3.0V or V
whichever
is less
0V
3.0V or V
0V
0V
0V
UNIT
UNIT
SH00007
MHz
ns
ns
ns
SH00008
ns
ns
ns
CC
CC
CC