TC74VCX2574FT/FK
TOSHIBA CMOS Digital Integrated Circuit
Silicon Monolithic
TC74VCX2574FT, TC74VCX2574FK
Low-Voltage Octal D-Type Flip-Flop with 3.6-V Tolerant Inputs and Outputs
The TC74VCX2574 is a high-performance CMOS octal D-type
flip-flop. Designed for use in 1.8-V, 2.5-V or 3.3-V systems, it
achieves high-speed operation while maintaining the CMOS low
power dissipation.
It is also designed with overvoltage tolerant inputs and outputs
up to 3.6 V.
This 8 bit D-type flip-flop is controlled by a clock input (CK)
and an output enable input (
OE
). When the
OE
input is high,
the eight outputs are in a high-impedance state. The 26-Ω series
resistor helps reducing output overshoot and undershoot without
external resistor.
All inputs are equipped with protection circuits against static
discharge.
TC74VCX2574FT
TC74VCX2574FK
Features
•
•
•
26-Ω series resistors on outputs.
Low-voltage operation: V
CC
= 1.8 to 3.6 V
High-speed operation: t
pd
= 5.1 ns (max) (V
CC
= 3.0 to 3.6 V)
: t
pd
= 6.2 ns (max) (V
CC
= 2.3 to 2.7 V)
: t
pd
= 9.8 ns (max) (V
CC
= 1.8 V)
•
Output current: I
OH
/I
OL
= ±12 mA (min) (V
CC
= 3.0 V)
: I
OH
/I
OL
= ±8 mA (min) (V
CC
= 2.3 V)
: I
OH
/I
OL
= ±4 mA (min) (V
CC
= 1.8 V)
•
•
•
•
Latch-up performance:
−300
mA
ESD performance: Machine model
≥ ±200
V
Human body model
≥ ±2000
V
Package: TSSOP and VSSOP (US)
3.6-V tolerant function and power-down protection provided on all inputs and outputs
Weight
TSSOP20-P-0044-0.65A
VSSOP20-P-0030-0.50
: 0.08 g (typ.)
: 0.03 g (typ.)
1
2007-10-19
TC74VCX2574FT/FK
Pin Assignment
(top view)
IEC Logic Symbol
OE
CK
1
11
EN
C1
OE
D0
D1
D2
D3
D4
D5
D6
D7
1
2
3
4
5
6
7
8
9
20
19
18
17
16
15
14
13
12
11
V
CC
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
CK
D0
D1
D2
D3
D4
D5
D6
D7
2
3
4
5
6
7
8
9
1D
19
18
17
16
15
14
13
12
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
GND 10
Truth Table
Inputs
OE
H
L
L
L
CK
X
D
X
X
L
H
Outputs
Z
Qn
L
H
X: Don’t care
Z: High impedance
Qn: No change
System Diagram
D0
2
D
D1
3
D
D2
4
D
D3
5
D
D4
6
D
D5
7
D
D6
8
D
D7
9
D
CK
11
CK Q
CK Q
CK Q
CK Q
CK Q
CK Q
CK Q
CK Q
OE
1
19
Q0
18
Q1
17
Q2
16
Q3
15
Q4
14
Q5
13
Q6
12
Q7
2
2007-10-19
TC74VCX2574FT/FK
Absolute Maximum Ratings (Note 1)
Characteristics
Power supply voltage
DC input voltage
DC output voltage
Input diode current
Output diode current
DC output current
Power dissipation
DC V
CC
/ground current per supply pin
Storage temperature
Symbol
V
CC
V
IN
V
OUT
I
IK
I
OK
I
OUT
P
D
I
CC
/I
GND
T
stg
Rating
−
0.5 to 4.6
−
0.5 to 4.6
−
0.5 to 4.6 (Note 2)
−
0.5 to V
CC
+
0.5
Unit
V
V
V
mA
(Note 4)
mA
mA
mW
mA
°C
(Note 3)
−
50
±
50
±
50
180
±
100
−
65 to 150
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: OFF state
Note 3: High or low state. I
OUT
absolute maximum rating must be observed.
Note 4: V
OUT
<
GND, V
OUT
>
V
CC
Operating Ranges (Note 1)
Characteristics
Power supply voltage
Input voltage
Output voltage
Symbol
V
CC
V
IN
V
OUT
Rating
1.8 to 3.6
1.2 to 3.6 (Note 2)
−
0.3 to 3.6
Unit
V
V
V
0 to 3.6 (Note 3)
0 to V
CC
(Note 4)
±
12
(Note 5)
(Note 6)
(Note 7)
°C
(Note 8)
ns/V
mA
Output current
Operating temperature
Input rise and fall time
I
OH
/I
OL
T
opr
dt/dv
±
8
±
4
−
40 to 85
0 to 10
Note 1: The operating ranges must be maintained to ensure the normal operation of the device.
Unused inputs must be tied to either VCC or GND.
Note 2: Data retention only
Note 3: OFF state
Note 4: High or low state
Note 5: V
CC
=
3.0 to 3.6 V
Note 6: V
CC
=
2.3 to 2.7 V
Note 7: V
CC
=
1.8 V
Note 8: V
IN
=
0.8 to 2.0 V, V
CC
=
3.0 V
3
2007-10-19
TC74VCX2574FT/FK
Electrical Characteristics
<
DC Characteristics
(Ta
= −40
to 85°C, 2.7 V
<
V
CC
=
3.6 V)
Characteristics
H-level
L-level
Symbol
V
IH
V
IL
Test Condition
⎯
⎯
V
CC
(V)
2.7 to 3.6
2.7 to 3.6
Min
2.0
⎯
Max
⎯
Unit
Input voltage
0.8
⎯
⎯
⎯
⎯
V
I
OH
= −
100
μ
A
H-level
V
OH
V
IN
=
V
IH
or V
IL
I
OH
= −
6 mA
I
OH
= −
8 mA
Output voltage
I
OH
= −
12 mA
I
OL
=
100
μ
A
L-level
V
OL
V
IN
=
V
IH
or V
IL
I
OL
=
6 mA
I
OL
=
8 mA
I
OL
=
12 mA
Input leakage current
3-state output OFF state current
Power-off leakage current
Quiescent supply current
Increase in I
CC
per input
I
IN
I
OZ
I
OFF
I
CC
Δ
I
CC
2.7 to 3.6
2.7
3.0
3.0
2.7 to 3.6
2.7
3.0
3.0
2.7 to 3.6
2.7 to 3.6
0
2.7 to 3.6
2.7 to 3.6
2.7 to 3.6
V
CC
−
0.2
2.2
2.4
2.2
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
V
0.2
0.4
0.55
0.8
±
5.0
±
10.0
μ
A
μ
A
μ
A
V
IN
=
0 to 3.6 V
V
IN
=
V
IH
or V
IL
V
OUT
=
0 to 3.6 V
V
IN
, V
OUT
=
0 to 3.6 V
V
IN
=
V
CC
or GND
V
CC
<
(V
IN
, V
OUT
)
<
3.6 V
=
=
V
IH
=
V
CC
−
0.6 V
10.0
20.0
±
20.0
μ
A
750
<
<
DC Characteristics
(Ta
= −40
to 85°C, 2.3 V
=
V
CC
=
2.7 V)
Characteristics
H-level
L-level
Symbol
V
IH
V
IL
Test Condition
⎯
⎯
V
CC
(V)
2.3 to 2.7
2.3 to 2.7
Min
1.6
⎯
Max
⎯
Unit
Input voltage
0.7
⎯
⎯
⎯
⎯
V
I
OH
= −
100
μ
A
H-level
Output voltage
V
OH
V
IN
=
V
IH
or V
IL
I
OH
= −
4 mA
I
OH
= −
6 mA
I
OH
= −
8 mA
I
OL
=
100
μ
A
L-level
V
OL
V
IN
=
V
IH
or V
IL
I
OL
=
6 mA
I
OL
=
8 mA
Input leakage current
3-state output OFF state current
Power-off leakage current
Quiescent supply current
I
IN
I
OZ
I
OFF
I
CC
V
IN
=
0 to 3.6 V
V
IN
=
V
IH
or V
IL
V
OUT
=
0 to 3.6 V
V
IN
, V
OUT
=
0 to 3.6 V
V
IN
=
V
CC
or GND
V
CC
<
(V
IN
, V
OUT
)
<
3.6 V
=
=
2.3 to 2.7
2.3
2.3
2.3
2.3 to 2.7
2.3
2.3
2.3 to 2.7
2.3 to 2.7
0
2.3 to 2.7
2.3 to 2.7
V
CC
−
0.2
2.0
1.8
1.7
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
V
0.2
0.4
0.6
±
5.0
±
10.0
μ
A
μ
A
μ
A
μ
A
10.0
20.0
±
20.0
4
2007-10-19
TC74VCX2574FT/FK
<
DC Characteristics
(Ta
= −40
to 85°C, 1.8 V
=
V
CC
<
2.3 V)
Characteristics
Symbol
Test Condition
⎯
⎯
V
CC
(V)
1.8 to 2.3
1.8 to 2.3
Min
0.7
×
V
CC
⎯
Max
⎯
Unit
H-level
Input voltage
L-level
V
IH
V
IL
0.2
×
V
CC
⎯
⎯
V
H-level
Output voltage
L-level
Input leakage current
3-state output OFF state current
Power-off leakage current
Quiescent supply current
V
OH
V
IN
=
V
IH
or V
IL
I
OH
= −
100
μ
A
I
OH
= −
4 mA
1.8
1.8
1.8
1.8
1.8
1.8
0
1.8
1.8
V
CC
−
0.2
1.4
⎯
⎯
⎯
⎯
⎯
⎯
⎯
V
V
OL
I
IN
I
OZ
I
OFF
I
CC
V
IN
=
V
IH
or V
IL
V
IN
=
0 to 3.6 V
V
IN
=
V
IH
or V
IL
V
OUT
=
0 to 3.6 V
V
IN
, V
OUT
=
0 to 3.6 V
V
IN
=
V
CC
or GND
I
OL
=
100
μ
A
I
OL
=
4 mA
0.2
0.3
±
5.0
±
10.0
μ
A
μ
A
μ
A
μ
A
10.0
20.0
±
20.0
V
CC
<
(V
IN
, V
OUT
)
<
3.6 V
=
=
5
2007-10-19
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