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Philips
Semiconductors
74LVC273
Octal D-type flip-flop with reset;
positive-edge trigger
Product specification
Supersedes data of 1996 Jun 06
IC24 Data Handbook
1998 May 20
INTEGRATED CIRCUITS
Philips Semiconductors
Product specification
74LVC273
Octal D-type flip-flop with reset; positive-edge trigger
2
1998 May 20
853-2064 19419
FEATURES
Wide supply voltage range of 1.2V to 3.6V
Conforms to JEDEC standard 8-1A
Inputs accept voltages up to 5.5V
CMOS low power consumption
Direct interface with TTL levels
Output drive capability 50
transmission lines @ 85
C
DESCRIPTION
The 74LVC273 is a low-voltage Si-gate CMOS device, superior to
most advanced CMOS compatible TTL families.
The 74LVC273 has eight edge-triggered , D-type flip-flops with
individual D inputs and Q outputs. The common clock (CP) and
master reset (MR) inputs load and reset (clear) all flip-flops
simultaneously. The state of each D input, one set-up time before
the LOW-to-HIGH clock transition, is transferred to the
corresponding output (Qn) of the flip-flop.
All outputs will be forced LOW independently of clock or data inputs
by a LOW voltage level on the MR input.
The device is useful for applications where the true output only is
required and the clock and master reset are common to all storage
elements.
QUICK REFERENCE DATA
GND = 0V; T
amb
= 25
C; t
r
=t
f
v
2.5 ns
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
t
PHL
/t
PLH
Propagation delay
CP to Qn;
MR to Q
n
C
L
= 50pF
V
CC
= 3.3V
6.0
6.0
ns
f
Maximum clock frequency
230
MHz
f
max
Maximum clock frequency
230
MHz
C
I
Input capacitance
5.0
pF
C
PD
Power dissipation
capacitance per flip-flop
V
I
= GND to V
CC
1
22
pF
NOTE:
1
C
PD
is used to determine the dynamic power dissipation (P
D
in
W)
P
D
= C
PD
V
CC
2
x f
i
)S
(C
L
V
CC
2
f
o
) where:
f
i
= input frequency in MHz; C
L
= output load capacity in pF;
f
o
= output frequency in MHz; V
CC
= supply voltage in V;
S
(C
L
V
CC
2
f
o
) = sum of the outputs.
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
DWG NUMBER
20-Pin Plastic SO
40
C to +85
C
74LVC273 D
74LVC273 D
SOT163-1
20-Pin Plastic SSOP Type II
40
C to +85
C
74LVC273 DB
74LVC273 DB
SOT339-1
20-Pin Plastic TSSOP Type I
40
C to +85
C
74LVC273 PW
74LVC273PW DH
SOT360-1
PIN CONFIGURATION
14
13
12
11
10
9
8
7
6
5
4
3
2
1
GND
V
CC
15
16
17
18
19
20
MR
Q0
D0
D1
Q1
Q2
D2
D3
Q3
Q7
D7
D6
Q6
Q5
D5
D4
Q4
CP
SY00051
PIN DESCRIPTION
PIN
NUMBER
SYMBOL
FUNCTION
1
MR
Master reset input (active LOW)
2, 5, 6,
9, 12, 15,
16, 19
Q0 Q7
Flip-flop outputs
3, 4, 7,
8, 13, 14,
17, 18
D0 D7
Data inputs
10
GND
Ground (0V)
11
CP
Clock input (LOW-to-HIGH,
edge-triggered)
20
V
CC
Positive power supply
Philips Semiconductors
Product specification
74LVC273
Octal D-type flip-flop with reset; positive-edge trigger
1998 May 20
3
LOGIC SYMBOL
3
4
7
8
13
14
17
18
2
5
6
9
12
15
16
19
11
CP
MR
D0
D1
D2
D3
D4
D5
D6
D7
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
1
SY00052
IEEE/IEC LOGIC SYMBOL
4
7
8
13
14
17
18
C1
R
1D
11
1
3
5
2
6
9
12
15
16
19
CP
MR
D0
D1
D2
D3
D4
D5
D6
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
D7
SY00050
FUNCTION TABLE
OPERATING
INPUTS
OUTPUT
MODES
MR
CP
Dn
Q0 Q7
Reset (clear)
L
X
X
L
Load `1'
H
h
H
Load `0'
H
I
L
H = HIGH voltage level
h
= HIGH voltage level one set-up time prior to the
HIGH-to-LOW CP transition
L
= LOW voltage level
I
= LOW voltage level one set-up time prior to the
HIGH-to-LOW CP transition
= LOW-to-HIGH transition
X = Don't care
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
CONDITIONS
LIMITS
UNIT
SYMBOL
PARAMETER
CONDITIONS
MIN
MAX
UNIT
V
CC
DC supply voltage (for max. speed performance)
2.7
3.6
V
V
CC
DC supply voltage (for low-voltage applications)
1.2
3.6
V
V
I
DC Input voltage range
0
5.5
V
V
I/O
DC Input voltage range for I/Os
0
V
CC
V
V
O
DC output voltage range
0
V
CC
V
T
amb
Operating free-air temperature range
40
+85
C
t
r
, t
f
Input rise and fall times
V
CC
= 1.2 to 2.7V
V
CC
= 2.7 to 3.6V
0
0
20
10
ns/V
Philips Semiconductors
Product specification
74LVC273
Octal D-type flip-flop with reset; positive-edge trigger
1998 May 20
4
ABSOLUTE MAXIMUM RATINGS
1
In accordance with the Absolute Maximum Rating System (IEC 134)
Voltages are referenced to GND (ground = 0V)
SYMBOL
PARAMETER
CONDITIONS
RATING
UNIT
V
CC
DC supply voltage
0.5 to +6.5
V
I
IK
DC input diode current
V
I
t
0
50
mA
V
I
DC input voltage
Note 2
0.5 to +5.5
V
I
OK
DC output diode current
V
O
u
V
CC
or V
O
t
0
"
50
mA
V
O
DC output voltage
Note 2
0.5 to V
CC
+0.5
V
I
O
DC output source or sink current
V
O
= 0 to V
CC
"
50
mA
I
GND
, I
CC
DC V
CC
or GND current
"
100
mA
T
stg
Storage temperature range
65 to +150
C
Power dissipation per package
P
TOT
plastic mini-pack (SO)
above +70
C derate linearly with 8 mW/K
500
P
TOT
plastic shrink mini-pack (SSOP and
TSSOP)
above +60
C derate linearly with 5.5 mW/K
500
mW
NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability.
2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
DC ELECTRICAL CHARACTERISTICS
Over recommended operating conditions voltages are referenced to GND (ground = 0V)
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
Temp = -40
C to +85
C
UNIT
MIN
TYP
1
MAX
V
HIGH level Input voltage
V
CC
= 1.2V
V
CC
V
V
IH
HIGH level Input voltage
V
CC
= 2.7 to 3.6V
2.0
V
V
LOW level Input voltage
V
CC
= 1.2V
GND
V
V
IL
LOW level Input voltage
V
CC
= 2.7 to 3.6V
0.8
V
V
CC
= 2.7V; V
I
= V
IH
or V
IL
; I
O
= 12mA
V
CC
*
0.5
V
O
HIGH level output voltage
V
CC
= 3.0V; V
I
= V
IH
or V
IL
; I
O
= 100
A
V
CC
*
0.2
V
CC
V
V
OH
HIGH level output voltage
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= 12mA
V
CC
*
0.6
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= 24mA
V
CC
*
1.0
V
CC
= 2.7V; V
I
= V
IH
or V
IL
; I
O
= 12mA
0.40
V
OL
LOW level output voltage
V
CC
= 3.0V; V
I
= V
IH
or V
IL
; I
O
= 100
A
0.20
V
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= 24mA
0.55
I
Input leakage current
V
CC
= 3 6V; V = 5 5V or GND
"
0 1
"
5
A
I
I
Input leakage current
V
CC
= 3.6V; V
I
= 5.5V or GND
"
0.1
"
5
A
I
OZ
3-State output OFF-state current
V
CC
= 3.6V; V
I
= V
IH
or V
IL
; V
O
= V
CC
or GND
0.1
"
10
A
I
CC
Quiescent supply current
V
CC
= 3.6V; V
I
= V
CC
or GND; I
O
= 0
0.1
10
A
I
CC
Additional quiescent supply current
V
CC
= 2.7V to 3.6V; V
I
= V
CC
0.6V; I
O
= 0
5
500
A
NOTE:
1. All typical values are at V
CC
= 3.3V and T
amb
= 25
C.
Philips Semiconductors
Product specification
74LVC273
Octal D-type flip-flop with reset; positive-edge trigger
1998 May 20
5
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
V
CC
= 2.7V
UNIT
MIN
TYP
1
MAX
MIN
TYP
MAX
t
PHL
t
PLH
Propagation delay
CP to Qn
1
6.0
10.2
6.6
11.2
ns
t
PHL
Propagation delay
MR to Qn
2
6.3
11.0
7.4
12.0
ns
t
W
Clock pulse width
HIGH or LOW
1
4
1.2
5
1.8
ns
t
W
Master reset pulse
width LOW
2
4
1.2
5
1.7
ns
t
rem
Removal time
MR to CP
2
2
1.0
3
1.0
ns
t
su
Set-up time
D
n
to CP
3
2
0.7
3
1.0
ns
t
h
Hold time
D
n
to CP
3
0
0.6
0
0.9
ns
f
max
Maximum clock
pulse frequency
1
125
100
MHz
NOTE:
1. These typical values are at V
CC
= 3.3V and T
amb
= 25
C.
AC WAVEFORMS
V
M
= 1.5V at V
CC
w
2.7V.
V
M
= 0.5 V
CC
at V
CC
t
2.7V.
V
OL
and V
OH
are the typical output voltage drop that occur with the
output load.
VM
VM
1/fMAX
tw
tPHL
tPLH
CP INPUT
Qn OUTPUT
SW00078
GND
V
OH
V
OL
V
I
Waveform 1. Clock (CP) to output (Q
n
) propagation delays, the
clock pulse width and the maximum clock pulse frequency
V
M
MR INPUT
Qn OUTPUT
tw
tPHL
trem
CP INPUT
SY00053
V
CC
GND
V
CC
GND
V
OH
V
OL
V
M
V
M
V
M
Waveform 2. Master reset (MR) pulse width, the master reset to
output (Q
n
) propagation delays and the master reset to clock
(CP) removal time
VM
SW00079
V
I
GND
V
M
Dn
INPUT
V
I
GND
VM
V
OH
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 3. Data set-up and hold times for the data input (D
n
)
Philips Semiconductors
Product specification
74LVC273
Octal D-type flip-flop with reset; positive-edge trigger
1998 May 20
6
TEST CIRCUIT
VM
VM
tW
NEGATIVE
PULSE
10%
10%
90%
90%
0V
VM
VM
t
W
V
I
POSITIVE
PULSE
90%
90%
10%
10%
0V
tTHL (tf)
tTLH (tr)
tTHL (tf)
tTLH (tr)
V
M
= 1.5V
Input Pulse Definition
SY00044
Switch position
PULSE
GENERATOR
RT
VI
D.U.T.
VO
CL
RL
VCC
RL
Test Circuit for 3-State Outputs
Open
GND
S
1
V
S1
DEFINITIONS
V
CC
V
I
< 2.7V
2.73.6V
V
CC
2.7V
TEST
S
1
t
PLZ/
t
PZL
t
PLH/
t
PHL
t
PHZ
/t
PZH
V
S1
Open
GND
V
S1
2
<
V
CC
2
<
V
CC
R
L
=
Load resistor; see AC CHARACTERISTICS for value.
C
L
=
Load capacitance includes jig and probe capacitance: See AC
CHARACTERISTICS for value.
R
T
=
Termination resistance should be equal to Z
OUT
of pulse generators.
V
I
Waveform 4. Load circuitry for switching times
Philips Semiconductors
Product specification
74LVC273
Octal D-type flip-flop with reset; positive-edge trigger
1998 May 20
7
SO20:
plastic small outline package; 20 leads; body width 7.5 mm
SOT163-1
Philips Semiconductors
Product specification
74LVC273
Octal D-type flip-flop with reset; positive-edge trigger
1998 May 20
8
SSOP20:
plastic shrink small outline package; 20 leads; body width 5.3 mm
SOT339-1
Philips Semiconductors
Product specification
74LVC273
Octal D-type flip-flop with reset; positive-edge trigger
1998 May 20
9
TSSOP20:
plastic thin shrink small outline package; 20 leads; body width 4.4 mm
SOT360-1
Philips Semiconductors
Product specification
74LVC273
Octal D-type flip-flop with reset; positive-edge trigger
Philips
Semiconductors
Philips Semiconductors and Philips Electronics North America Corporation reserve the right to make changes, without notice, in the products,
including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips
Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright,
or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask
work right infringement, unless otherwise specified. Applications that are described herein for any of these products are for illustrative purposes
only. Philips Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing
or modification.
LIFE SUPPORT APPLICATIONS
Philips Semiconductors and Philips Electronics North America Corporation Products are not designed for use in life support appliances, devices,
or systems where malfunction of a Philips Semiconductors and Philips Electronics North America Corporation Product can reasonably be expected
to result in a personal injury. Philips Semiconductors and Philips Electronics North America Corporation customers using or selling Philips
Semiconductors and Philips Electronics North America Corporation Products for use in such applications do so at their own risk and agree to fully
indemnify Philips Semiconductors and Philips Electronics North America Corporation for any damages resulting from such improper use or sale.
This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips
Semiconductors reserves the right to make changes at any time without notice in order to improve design
and supply the best possible product.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 940883409
Telephone 800-234-7381
DEFINITIONS
Data Sheet Identification
Product Status
Definition
Objective Specification
Preliminary Specification
Product Specification
Formative or in Design
Preproduction Product
Full Production
This data sheet contains the design target or goal specifications for product development. Specifications
may change in any manner without notice.
This data sheet contains Final Specifications. Philips Semiconductors reserves the right to make changes
at any time without notice, in order to improve design and supply the best possible product.
Philips Semiconductors and Philips Electronics North America Corporation
register eligible circuits under the Semiconductor Chip Protection Act.
Copyright Philips Electronics North America Corporation 1998
All rights reserved. Printed in U.S.A.
print code
Date of release: 05-96
Document order number:
9397-750-04505
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