TC74VHC273F/FT/FK
TOSHIBA CMOS Digital Integrated Circuit
Silicon Monolithic
TC74VHC273F,TC74VHC273FT,TC74VHC273FK
Octal D-Type Flip-Flop with Clear
The TC74VHC273 is an advanced high speed CMOS OCTAL
D-TYPE FLIP FLOP fabricated with silicon gate C2MOS
technology.
It achieves the high speed operation similar to equivalent
Bipolar Schottky TTL while maintaining the CMOS low power
dissipation.
Information signals applied to D inputs are transferred to the
Q outputs on the positive going edge of the clock pulse.
When the CLR input is held “L”, the Q outputs are at a low
logic level independent of the other inputs.
An input protection circuit ensures that 0 to 5.5 V can be
applied to the input pins without regard to the supply voltage.
This device can be used to interface 5 V to 3 V systems and two
supply systems such as battery back up. This circuit prevents
device destruction due to mismatched supply and input voltages.
TC74VHC273F
TC74VHC273FT
Features
•
High speed: fmax = 165 MHz (typ.) at VCC = 5 V
•
Low power dissipation: ICC = 4 μA (max) at Ta = 25°C
•
High noise immunity: VNIH = VNIL = 28% VCC (min)
•
Power down protection is provided on all inputs.
Balanced propagation delays: tpLH ∼
− tpHL
•
•
Wide operating voltage range: VCC (opr) = 2 to 5.5 V
•
Low noise: VOLP = 0.8 V (max)
•
Pin and function compatible with 74ALS273
TC74VHC273FK
Weight
SOP20-P-300-1.27A
TSSOP20-P-0044-0.65A
VSSOP20-P-0030-0.50
1
: 0.22 g (typ.)
: 0.08 g (typ.)
: 0.03 g (typ.)
2012-08-04
TC74VHC273F/FT/FK
Pin Assignment
IEC Logic Symbol
CLR
CK
CLR
1
20
VCC
Q1
2
19
Q8
D1
3
18
D8
D1
D2
4
17
D7
D3
Q2
D4
Q3
6
15
Q6
D3
7
14
D6
D4
8
13
D5
Q4
9
12
Q5
GND 10
11
CK
D5
D6
D7
D8
R
C1
(3)
(2)
1D
(4)
D2
Q7
16
5
(1)
(11)
Q1
(5)
(7)
(6)
(8)
(9)
(13)
(12)
(14)
(15)
(17)
(18)
(16)
(19)
Q2
Q3
Q4
Q5
Q6
Q7
Q8
(top view)
Truth Table
Inputs
Output
Function
CLR
D
CK
Q
L
X
X
L
Clear
H
L
L
―
H
H
H
―
H
X
Qn
No Change
X: Don’t care
System Diagram
CLR
1
D1
3
D2
4
D R
CK
CK
D3
7
D R
Q
CK
D R
Q
D5
13
D4
8
CK
D R
Q
CK
D6
14
D R
Q
CK
D7
17
D R
Q
CK
D8
18
D R
Q
CK
D R
Q
CK
Q
11
2
Q1
5
Q2
6
9
Q3
Q4
2
12
Q5
15
16
Q6
19
Q7
Q8
2012-08-04
TC74VHC273F/FT/FK
Absolute Maximum Ratings (Note)
Characteristics
Symbol
Rating
Unit
Supply voltage range
VCC
−0.5 to 7.0
V
DC input voltage
VIN
−0.5 to 7.0
V
VOUT
−0.5 to VCC + 0.5
V
Input diode current
IIK
−20
mA
Output diode current
IOK
±20
mA
DC output current
IOUT
±25
mA
DC VCC/ground current
ICC
±75
mA
Power dissipation
PD
180
mW
Storage temperature
Tstg
−65 to 150
°C
DC output voltage
Note:
Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or
even destruction.
Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the
significant change in temperature, etc.) may cause this product to decrease in the reliability significantly
even if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute
maximum ratings and the operating ranges.
Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook
(“Handling Precautions”/“Derating Concept and Methods”) and individual reliability data (i.e. reliability test
report and estimated failure rate, etc).
Operating Ranges (Note)
Characteristics
Symbol
Rating
Unit
Supply voltage
VCC
2.0 to 5.5
V
Input voltage
VIN
0 to 5.5
V
VOUT
0 to VCC
V
Operating temperature
Topr
−40 to 85
°C
Input rise and fall time
dt/dv
Output voltage
Note:
0 to 100 (VCC = 3.3 ± 0.3 V)
0 to 20 (VCC = 5 ± 0.5 V)
ns/V
The operating ranges must be maintained to ensure the normal operation of the device.
Unused inputs must be tied to either VCC or GND.
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TC74VHC273F/FT/FK
Electrical Characteristics
DC Characteristics
Characteristics
VCC (V)
Min
Typ.
Max
Min
Max
2.0
1.50
⎯
⎯
1.50
⎯
3.0 to
5.5
VCC ×
0.7
⎯
⎯
2.0
⎯
⎯
0.50
3.0 to
5.5
⎯
⎯
VCC ×
0.3
⎯
VCC ×
0.3
2.0
1.9
2.0
⎯
1.9
⎯
3.0
2.9
3.0
⎯
2.9
⎯
4.5
4.4
4.5
⎯
4.4
⎯
IOH = −4 mA
3.0
2.58
⎯
⎯
2.48
⎯
IOH = −8 mA
4.5
3.94
⎯
⎯
3.80
⎯
2.0
⎯
0.0
0.1
⎯
0.1
3.0
⎯
0.0
0.1
⎯
0.1
4.5
⎯
0.0
0.1
⎯
0.1
IOL = 4 mA
3.0
⎯
⎯
0.36
⎯
0.44
IOL = 8 mA
4.5
⎯
⎯
0.36
⎯
0.44
High-level input
voltage
VIH
⎯
Low-level input
voltage
VIL
⎯
IOH = −50 μA
High-level output
voltage
VOH
VIN
= VIH or VIL
IOL = 50 μA
Low-level output
voltage
VOL
Ta =
−40 to 85°C
Ta = 25°C
Test Condition
Symbol
VIN
= VIH or VIL
VCC ×
0.7
⎯
⎯
Unit
V
0.50
V
V
V
Input leakage
current
IIN
VIN = 5.5 V or GND
0 to
5.5
⎯
⎯
±0.1
⎯
±1.0
μA
Quiescent supply
current
ICC
VIN = VCC or GND
5.5
⎯
⎯
4.0
⎯
40.0
μA
Ta =
−40 to
85°C
Unit
Timing Requirements (input: tr = tf = 3 ns)
Characteristics
Minimum pulse width (CK)
Symbol
tw (L)
⎯
tw (H)
tw (L)
⎯
Minimum set-up time
ts
⎯
Minimum hold time
th
⎯
trem
⎯
Minimum pulse width ( CLR )
Minimum removal time ( CLR )
Ta = 25°C
Test Condition
4
VCC (V)
Typ.
Limit
Limit
3.3 ± 0.3
⎯
5.5
6.5
5.0 ± 0.5
⎯
5.0
5.0
3.3 ± 0.3
⎯
5.0
6.0
5.0 ± 0.5
⎯
5.0
5.0
3.3 ± 0.3
⎯
5.5
6.5
5.0 ± 0.5
⎯
4.5
4.5
3.3 ± 0.3
⎯
1.0
1.0
5.0 ± 0.5
⎯
1.0
1.0
3.3 ± 0.3
⎯
2.5
2.5
5.0 ± 0.5
⎯
2.0
2.0
ns
ns
ns
ns
ns
2012-08-04
TC74VHC273F/FT/FK
AC Characteristics (input: tr = tf = 3 ns)
Characteristics
VCC (V)
Propagation delay
time
tpLH
(CK-Q)
tpHL
Propagation delay
time
Min
Typ.
Max
Min
Max
15
⎯
8.7
13.6
1.0
16.0
50
⎯
11.2
17.1
1.0
19.5
15
⎯
5.8
9.0
1.0
10.5
50
⎯
7.3
11.0
1.0
12.5
15
⎯
8.9
13.6
1.0
16.0
50
⎯
11.4
17.1
1.0
19.5
15
⎯
5.2
8.5
1.0
10.0
50
⎯
6.7
10.5
1.0
12.0
15
75
120
⎯
65
⎯
50
50
75
⎯
45
⎯
15
120
165
⎯
100
⎯
50
80
110
⎯
70
⎯
3.3 ± 0.3
50
⎯
⎯
1.5
⎯
1.5
5.0 ± 0.5
50
⎯
⎯
1.0
⎯
1.0
⎯
4
10
⎯
10
pF
⎯
31
⎯
⎯
⎯
pF
3.3 ± 0.3
⎯
5.0 ± 0.5
⎯
( CLR -Q)
5.0 ± 0.5
3.3 ± 0.3
Maximum clock
frequency
fmax
⎯
5.0 ± 0.5
Output to output skew
tosLH
tosHL
Input capacitance
CIN
Power dissipation
capacitance
CPD
(Note 1)
Unit
CL (pF)
3.3 ± 0.3
tpHL
Ta = −40 to
85°C
Ta = 25°C
Test Condition
Symbol
⎯
(Note 2)
ns
ns
MHz
ns
Note 1: Parameter guaranteed by design.
tosLH = |tpLHm − tpLHn|, tosHL = |tpHLm − tpHLn|
Note 2: CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating
current consumption without load.
Average operating current can be obtained by the equation:
ICC (opr) = CPD·VCC·fIN + ICC/8 (per bit)
And the total CPD when n pcs.of flip flop operate can be gained by the following equation:
CPD (total) = 22 + 9·n
Noise Characteristics (input: tr = tf = 3 ns)
Characteristics
Ta = 25°C
Test Condition
Symbol
VCC (V)
Typ.
Max
Unit
Quiet output maximum dynamic VOL
VOLP
CL = 50 pF
5.0
0.5
0.8
V
Quiet output minimum dynamic VOL
VOLV
CL = 50 pF
5.0
−0.5
−0.8
V
Minimum high level dynamic input
voltage
VIHD
CL = 50 pF
5.0
⎯
3.5
V
Maximum low level dynamic input
voltage
VILD
CL = 50 pF
5.0
⎯
1.5
V
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TC74VHC273F/FT/FK
Input Equivalent Circuit
INPUT
6
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TC74VHC273F/FT/FK
Package Dimensions
Weight: 0.22 g (typ.)
7
2012-08-04
TC74VHC273F/FT/FK
Package Dimensions
Weight: 0.08 g (typ.)
8
2012-08-04
TC74VHC273F/FT/FK
Package Dimensions
Weight: 0.03 g (typ.)
9
2012-08-04
TC74VHC273F/FT/FK
RESTRICTIONS ON PRODUCT USE
• Toshiba Corporation, and its subsidiaries and affiliates (collectively "TOSHIBA"), reserve the right to make changes to the information
in this document, and related hardware, software and systems (collectively "Product") without notice.
• This document and any information herein may not be reproduced without prior written permission from TOSHIBA. Even with
TOSHIBA's written permission, reproduction is permissible only if reproduction is without alteration/omission.
• Though TOSHIBA works continually to improve Product's quality and reliability, Product can malfunction or fail. Customers are
responsible for complying with safety standards and for providing adequate designs and safeguards for their hardware, software and
systems which minimize risk and avoid situations in which a malfunction or failure of Product could cause loss of human life, bodily
injury or damage to property, including data loss or corruption. Before customers use the Product, create designs including the
Product, or incorporate the Product into their own applications, customers must also refer to and comply with (a) the latest versions of
all relevant TOSHIBA information, including without limitation, this document, the specifications, the data sheets and application notes
for Product and the precautions and conditions set forth in the "TOSHIBA Semiconductor Reliability Handbook" and (b) the
instructions for the application with which the Product will be used with or for. Customers are solely responsible for all aspects of their
own product design or applications, including but not limited to (a) determining the appropriateness of the use of this Product in such
design or applications; (b) evaluating and determining the applicability of any information contained in this document, or in charts,
diagrams, programs, algorithms, sample application circuits, or any other referenced documents; and (c) validating all operating
parameters for such designs and applications. TOSHIBA ASSUMES NO LIABILITY FOR CUSTOMERS' PRODUCT DESIGN OR
APPLICATIONS.
• PRODUCT IS NEITHER INTENDED NOR WARRANTED FOR USE IN EQUIPMENTS OR SYSTEMS THAT REQUIRE
EXTRAORDINARILY HIGH LEVELS OF QUALITY AND/OR RELIABILITY, AND/OR A MALFUNCTION OR FAILURE OF WHICH
MAY CAUSE LOSS OF HUMAN LIFE, BODILY INJURY, SERIOUS PROPERTY DAMAGE AND/OR SERIOUS PUBLIC IMPACT
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limitation, equipment used in nuclear facilities, equipment used in the aerospace industry, medical equipment, equipment used for
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including without limitation, the EU RoHS Directive. TOSHIBA ASSUMES NO LIABILITY FOR DAMAGES OR LOSSES
OCCURRING AS A RESULT OF NONCOMPLIANCE WITH APPLICABLE LAWS AND REGULATIONS.
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