TC74VHCT74AF/AFT
TOSHIBA CMOS Digital Integrated Circuit
Silicon Monolithic
TC74VHCT74AF, TC74VHCT74AFT
Dual D-Type Flip-Flop with Preset and Clear
TC74VHCT74AF
The TC74VHCT74 is an advanced high speed CMOS D-TYPE
FLIP –FLOP fabricated with silicon gate C
2
MOS technology. It
achieves the high speed operation similar to equivalent Bipolar
Schottky TTL while maintaining the CMOS low power
dissipation.
The signal level applied to the D INPUT is transferred to Q
OUTPUT during the positive going transition of the CK pulse.
CLR
and
PR
are independent of the CK and are
accomplished by setting the appropriate input low.
The input voltage are compatible with TTL output voltage.
This device may be used as a level converter for interfacing 3.3
V to 5 V system.
Input protection and output circuit ensure that 0 to 5.5 V can
be applied to the input and output
(Note)
pins without regard to
the supply voltage. These structure prevents device destruction
due to mismatched supply and input/output voltages such as
battery back up, hot board insertion, etc.
Note:
V
CC
=
0 V
TC74VHCT74AFT
Features
•
•
•
•
•
•
High speed: f
max
=
160 MHz (typ.) at V
CC
=
5 V
Low power dissipation: I
CC
=
2
μA
(max) at Ta
=
25°C
Compatible with TTL inputs: V
IL
=
0.8 V (max)
V
IH
=
2.0 V (min)
Power down protection is provided on all inputs and outputs
Balanced propagation delays: t
pLH
≈
t
pHL
Weight
SOP14-P-300-1.27A:
TSSOP14-P-0044-0.65A:
0.18 g (typ.)
0.06 g (typ.)
Pin and function compatible with the 74 series (74AC/HC/F/ALS/LS etc.) 74 type.
Start of commercial production
1995-12
1
2014-03-01
TC74VHCT74AF/AFT
Pin Assignment
IEC Logic Symbol
1PR
1CK
1D
1CLR
2PR
2CK
2D
2CLR
(4)
(3)
(2)
(1)
(10)
(11)
(12)
(13)
1CLR
1D
1CK
1PR
1Q
1
2
3
4
5
6
7
(top view)
CK
Q
D
Q
CK
Q
D
Q
14
13
12
11
10
9
8
V
CC
2CLR
S
C1
1D
R
(5)
(6)
(9)
(8)
1Q
1Q
2D
2CK
2PR
2Q
2Q
2Q
1Q
GND
2Q
Truth Table
Inputs
Outputs
Function
Clear
Preset
―
―
―
No Change
CLR
L
H
L
H
H
H
PR
H
L
L
H
H
H
D
X
X
X
L
H
X
CK
X
X
X
Q
L
H
H
L
H
Q
n
Q
H
L
H
H
L
Q
n
X: Don’t care
Absolute Maximum Ratings (Note 1)
Characteristics
Supply voltage range
DC input voltage
DC output voltage
Input diode current
Output diode current
DC output current
DC V
CC
/ground current
Power dissipation
Storage temperature
Symbol
V
CC
V
IN
V
OUT
I
IK
I
OK
I
OUT
I
CC
P
D
T
stg
Rating
−0.5
to 7.0
−0.5
to 7.0
−0.5
to 7.0
−0.5
to V
CC
+ 0.5
−20
±20
±25
±50
180
−65
to 150
(Note 4)
(Note 2)
(Note 3)
Unit
V
V
V
mA
mA
mA
mA
mW
°C
Note 1: 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).
Note 2: V
CC
= 0 V
Note 3: High or low state. I
OUT
absolute maximum rating must be observed.
Note 4: V
OUT
< GND, V
OUT
> V
CC
2
2014-03-01
TC74VHCT74AF/AFT
Operating Ranges (Note 1)
Characteristics
Supply voltage
Input voltage
Output voltage
Operating temperature
Input rise and fall time
Symbol
V
CC
V
IN
V
OUT
T
opr
dt/dV
Rating
4.5 to 5.5
0 to 5.5
0 to 5.5
0 to V
CC
−40
to 85
0 to 20
(Note 2)
(Note 3)
Unit
V
V
V
°C
ns/V
Note 1: The operating ranges must be maintained to ensure the normal operation of the device.
Unused inputs must be tied to either V
CC
or GND.
Note 2: V
CC
= 0 V
Note 3: High or low state
Electrical Characteristics
DC Characteristics
Characteristics
High-level input
voltage
Low-level input
voltage
High-level output
voltage
Low-level output
voltage
Input leakage
current
Quiescent supply
current
Output leakage
current
Symbol
Test Condition
V
CC
(V)
V
IH
V
IL
V
OH
―
―
I
OH
=
−50 μA
V
IN
= V
IH
or V
IL
I
OH
=
−8
mA
I
OL
= 50
μA
V
IN
= V
IH
or V
IL
I = 8 mA
OL
V
IN
= 5.5 V or GND
V
IN
= V
CC
or GND
Per input: V
IN
= 3.4 V
Other input: V
CC
or GND
V
OUT
= 5.5 V
4.5 to 5.5
4.5 to 5.5
4.5
4.5
4.5
4.5
0 to 5.5
5.5
5.5
0
Min
2.0
―
4.40
3.94
―
―
―
―
―
―
Ta = 25°C
Typ.
―
―
4.50
―
0.0
―
―
―
―
―
Max
―
0.8
―
―
0.1
0.36
±0.1
2.0
1.35
0.5
Ta =
−40
to 85°C
Min
2.0
―
4.40
3.80
―
―
―
―
―
―
Max
―
0.8
―
―
0.1
0.44
±1.0
20.0
1.50
5.0
V
V
V
Unit
V
OL
I
IN
I
CC
I
CCT
I
OPD
V
μA
μA
mA
μA
3
2014-03-01
Microcontroller MCU
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