TC74VCX162821FT
TOSHIBA CMOS Digital Integrated Circuit
Silicon Monolithic
TC74VCX162821FT
Low-Voltage 20-Bit D-Type Flip-Flop with 3.6-V Tolerant Inputs and Outputs
The TC74VCX162821FT is a high-performance CMOS 20-bit
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.
The device is byte controlled with each byte functioning
identically, but independent of the other. Control pins can be
shorted together to obtain full 20-bit operation. The following
description applies to each byte. The twenty flip-flops will store
Weight: 0.25 g (typ.)
the state of their individual D inputs that meet the setup and
hold time requirements on the LOW-to-HIGH Clock (CK)
transition. When the OE input is high, the outputs are in a high-impedance state. This device is designed to be
used with 3-state memory address drivers, etc.
The 26-Ω series resistor helps reducing output overshoot and undershoot without external resistor.
All inputs are equipped with protection circuits against static discharge.
Features
•
•
•
26-Ω series resistors on outputs.
Low-voltage operation: V
CC
= 1.8 to 3.6 V
High-speed operation: t
pd
= 4.4 ns (max) (V
CC
= 3.0 to 3.6 V)
: t
pd
= 5.8 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
3.6-V tolerant function and power-down protection provided on all inputs and outputs
1
2007-10-19
TC74VCX162821FT
Pin Assignment
(top view)
IEC Logic Symbol
1OE
1Q1
1Q2
GND
1Q3
1Q4
V
CC
1Q5
1Q6
1
2
3
4
5
6
7
8
9
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
1CK
1D1
1D2
GND
1OE
1CK
2OE
2CK
1D1
1D2
1D3
1D4
1D5
1D6
1D7
1D8
1D9
1D10
2D1
2D2
2D3
2D4
2D5
2D6
2D7
2D8
2D9
2D10
1
56
28
29
55
54
52
51
49
48
47
45
44
43
42
41
40
38
37
36
34
33
31
30
EN2
C1
EN4
C3
1D
2
2
3
5
6
8
9
10
12
13
14
3D
4
15
16
17
19
20
21
23
24
26
27
1Q1
1Q2
1Q3
1Q4
1Q5
1Q6
1Q7
1Q8
1Q9
1Q10
2Q1
2Q2
2Q3
2Q4
2Q5
2Q6
2Q7
2Q8
2Q9
2Q10
1D3
1D4
V
CC
1D5
1D6
1D7
GND
1D8
1D9
1D10
2D1
2D2
2D3
GND
2D4
2D5
2D6
V
CC
2D7
2D8
GND
2D9
2D10
2CK
1Q7 10
GND 11
1Q8 12
1Q9 13
1Q10 14
2Q1 15
2Q2
2Q3
16
17
41
40
39
38
37
36
35
34
33
32
31
30
29
GND 18
2Q4 19
2Q5
20
2Q6 21
V
CC
2Q7
2Q8
22
23
24
GND 25
2Q9 26
2Q10 27
2OE
28
2
2007-10-19
TC74VCX162821FT
Truth Table
Inputs
Outputs
1D1-1D10
X
X
L
H
1Q1-1Q10
Z
Qn
L
H
1OE
H
L
L
L
1CK
X
Inputs
Outputs
2D1-2D10
X
X
L
H
2Q1-2Q10
Z
Qn
L
H
2OE
H
L
L
L
2CK
X
X: Don’t care
Z: High impedance
Qn: No change
System Diagram
1D1
55
D
Q
CK
1CK
56
1D2
54
D
Q
CK
1D3
52
D
Q
CK
1D4
51
D
Q
CK
1D5
49
D
Q
CK
1D6
48
D
Q
CK
1D7
47
D
Q
CK
1D8
45
D
Q
CK
1D9
44
D
Q
CK
1D10
43
D
Q
CK
1OE
1
2
1Q1
2D1
42
D
2D2
41
D
3
1Q2
2D3
40
D
5
1Q3
2D4
38
D
6
1Q4
2D5
37
D
8
1Q5
2D6
36
D
9
1Q6
2D7
34
D
10
1Q7
2D8
33
D
12
1Q8
2D9
31
D
13
1Q9
2D10
30
D
14
1Q10
Q
CK
2CK 29
Q
CK
Q
CK
Q
CK
Q
CK
Q
CK
Q
CK
Q
CK
Q
CK
Q
CK
2OE
28
15
2Q1
16
2Q2
17
2Q3
19
2Q4
20
2Q5
21
2Q6
23
2Q7
24
2Q8
26
2Q9
27
2Q10
3
2007-10-19
TC74VCX162821FT
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
400
±
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
−
0.3 to 3.6
Unit
V
V
(Note 3)
(Note 4)
(Note 5)
(Note 6)
(Note 7)
°C
(Note 8)
ns/V
mA
V
(Note 2)
0 to 3.6
0 to V
CC
±
12
±
8
±
4
Output current
I
OH
/I
OL
T
opr
dt/dv
Operating temperature
Input rise and fall time
−
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
4
2007-10-19
TC74VCX162821FT
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
5
2007-10-19
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