TC7WT74FU
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC7WT74FU
D-Type Flip-Flop with Preset and Clear
The TC7WT74FU is high speed CMOS D-TYPE FLIP-FLOP fabricated
with silicon gate CMOS technology.
It achieves the high speed operation similar to equivalent Bipolar
schottky TTL while maintaining the CMOS low power dissipation.
The input threshold levels are compatible with TTL output voltage.
The signal level applied to the D-INPUT is tranceferred to
Q-OUTPUT during the positive going trasition of the CK pulse.
CLEAR and PRESET are independent of the CK and are
accompished by setting the appropriate input low.
All inputs are equipped with protection circuits against static
dichage or transient excess voltage.
TC7WT74FU
(SM8)
Weight
SSOP8-P-0.65: 0.02 g (typ.)
Features
•
High speed: fMAX = 53 MHz(typ.) at VCC = 5 V
•
Low power dissipation: ICC = 2 μA (max) at Ta = 25°C
•
Compatible with TTL inputs: VIL = 0.8 V(max) at Ta=25°C
•
Output drive capability: 10 LSTTL Loads
•
Symmetrical output impedance: |IOH| = IOL = 4 mA (min)
Absolute Maximum Ratings (Ta = 25°C)
Characteristics
Marking
Symbol
Rating
Unit
Supply voltage range
VCC
−0.5 to 7
V
DC input voltage
VIN
−0.5 to VCC + 0.5
V
DC output voltage
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
±25
mA
Power dissipation
PD
300
mW
Storage temperature
Tstg
−65 to 150
°C
TL
260
°C
Lead temperature (10s)
Note: 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).
1
Type name
WT74
Lot No.
Pin Assignment (top view)
CK 1
D 2
Q
3
GND 4
8 VCC
7 PR
6 CLR
5 Q
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TC7WT74FU
Truth Table
IEC Logic Symbol
Inputs
CLR
PR
Outputs
D
CK
Q
Function
Q
L
H
X
X
L
H
Clear
H
L
X
X
H
L
Preset
H
H
⎯
L
L
H
⎯
H
H
H
L
⎯
H
X
Qn
Qn
No Change
L
L
X
H
H
H
H
X
PR
CK
D
CLR
(7)
S
(1)
(5)
C
(2)
D
(6)
Q
(3)
R
Q
X: Don’t care
Operating Ranges
Characteristics
Symbol
Rating
Unit
Supply voltage
VCC
4.5 to 5.5
V
Input voltage
VIN
0 to VCC
V
VOUT
0 to VCC
V
Operating temperature
Topr
−40 to 85
°C
Input rise and fall time
tr, tf
0 to 500
ns
Output voltage
DC Electrical Characteristics
Characteristics
High level
Symbol
Ta = 25°C
Test Condition
⎯
VIH
Ta = −40 to 85°C
VCC (V)
Min
Typ.
Max
Min
Max
4.5 to 5.5
2.0
⎯
⎯
2.0
⎯
Input
voltage
Unit
V
⎯
Low level
VIL
High level
VOH
VIN =
VIL or VIH
VOL
VIN =
VIL or VIH
Output
voltage
Low level
Input leakage current
Quiescent supply current
4.5 to 5.5
⎯
⎯
0.8
⎯
0.8
IOH = −20 μA
4.5
4.4
4.5
⎯
4.4
⎯
IOH = −4 mA
4.5
4.18
4.31
⎯
4.13
⎯
IOL = 20 μA
4.5
⎯
0.0
0.10
⎯
0.10
IOL = 4 mA
4.5
⎯
0.17
0.26
⎯
0.33
V
V
IIN
VIN = VCC or GND
5.5
⎯
⎯
±0.1
⎯
±1
μA
ICC
VIN = VCC or GND
5.5
⎯
⎯
2.0
⎯
20.0
μA
5.5
⎯
⎯
2.0
⎯
2.9
mA
ICCT
PER INPUT: VIN = 0.5 V
or 2.4V
OTHER INPUT: VCC or
GND
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TC7WT74FU
Timing Requirements (Input: tr = tf = 6 ns)
Characteristics
Minimum pulse width
(CLOCK)
Symbol
tW(L)
tW(H)
⎯
Minimum pulse width
( CLR , PR )
tW(L)
⎯
Minimum set-up time
tS
⎯
Minimum hold time
th
⎯
trem
⎯
f
⎯
Minimum removal time
( CLR , PR )
Clock frequency
Ta = 25°C
Test Condition
Ta = −40 to 85°C
VCC (V)
Typ
LIMIT
LIMIT
4.5
⎯
25
29
5.5
⎯
20
23
4.5
⎯
30
34
5.5
⎯
25
28
4.5
⎯
25
29
5.5
⎯
20
23
4.5
⎯
10
10
5.5
⎯
8
8
4.5
⎯
10
10
5.5
⎯
10
10
4.5
⎯
22
16
5.5
⎯
25
19
Unit
ns
ns
ns
ns
ns
MHz
AC Electrical Characteristics (CL = 15pF, VCC = 5V, Ta = 25°C)
Characteristics
Output transition time
Propagation delay time
(CLOCK – Q, Q )
Symbol
tTLH
tTHL
tPLH
tPHL
Propagation delay time
( CLR , PR – Q, Q )
tPLH
Maximum clock frequency
fMAX
tPHL
Test Condition
Min
Typ.
Max
Unit
⎯
⎯
6
12
ns
⎯
⎯
17
28
ns
⎯
⎯
20
30
ns
⎯
24
53
⎯
MHz
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TC7WT74FU
AC Electrical Characteristics (CL = 50pF, Input tr = tf = 6 ns)
Characteristics
Output transition time
Propagation delay time
(CLOCK – Q, Q )
Symbol
tTLH
tTHL
tPLH
tPHL
Ta = 25°C
Test Condition
Ta = −40 to 85°C
VCC (V)
Min
Typ.
Max
Min
Max
4.5
⎯
8
15
⎯
19
5.5
⎯
7
13
⎯
16
4.5
⎯
21
33
⎯
41
5.5
⎯
19
30
⎯
37
4.5
⎯
23
35
⎯
43
5.5
⎯
20
32
⎯
40
4.5
22
48
⎯
16
⎯
5.5
25
53
⎯
19
⎯
⎯
⎯
Unit
ns
ns
Propagation delay time
( CLR , PR – Q, Q )
tPLH
Maximum clock frequency
fMAX
Input capacitance
CIN
⎯
⎯
5
10
⎯
10
pF
Power dissipation
capacitance
CPD
(Note)
⎯
34
⎯
⎯
⎯
pF
tPHL
⎯
⎯
ns
MHz
Note: 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
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TC7WT74FU
Package Dimensions
Weight: 0.02 g (typ.)
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TC7WT74FU
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 intended for use in general electronics applications (e.g., computers, personal equipment, office equipment, measuring
equipment, industrial robots and home electronics appliances) or for specific applications as expressly stated in this document.
Product is neither intended nor warranted for use in equipment 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 or serious
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power, and equipment used in finance-related fields. Do not use Product for Unintended Use unless specifically permitted in this
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infringement of patents or any other intellectual property rights of third parties that may result from the use of Product. No license to
any intellectual property right is granted by this document, whether express or implied, by estoppel or otherwise.
• ABSENT A WRITTEN SIGNED AGREEMENT, EXCEPT AS PROVIDED IN THE RELEVANT TERMS AND CONDITIONS OF SALE
FOR PRODUCT, AND TO THE MAXIMUM EXTENT ALLOWABLE BY LAW, TOSHIBA (1) ASSUMES NO LIABILITY
WHATSOEVER, INCLUDING WITHOUT LIMITATION, INDIRECT, CONSEQUENTIAL, SPECIAL, OR INCIDENTAL DAMAGES OR
LOSS, INCLUDING WITHOUT LIMITATION, LOSS OF PROFITS, LOSS OF OPPORTUNITIES, BUSINESS INTERRUPTION AND
LOSS OF DATA, AND (2) DISCLAIMS ANY AND ALL EXPRESS OR IMPLIED WARRANTIES AND CONDITIONS RELATED TO
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technology products (mass destruction weapons). Product and related software and technology may be controlled under the
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• Please contact your TOSHIBA sales representative for details as to environmental matters such as the RoHS compatibility of Product.
Please use Product in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances,
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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