TOSHIBA TC74LVX373F

TC74LVX373F/FT
TOSHIBA CMOS Digital Integrated Circuit
Silicon Monolithic
TC74LVX373F,TC74LVX373FT
Octal D-Type Latch with 3-State Output
The TC74LVX373F/ FT is a high-speed CMOS octal latch with
3-state output fabricated with silicon gate CMOS technology.
Designed for use in 3-V systems, it achieves high-speed operation
while maintaining the CMOS low power dissipation.
This device is suitable for low-voltage and battery operated
systems.
This 8 bit D-type latch is controlled by a latch enable input
(LE) and an output enable input ( OE ). When the OE input is
high, the eight outputs are in a high-impedance state.
An input protection circuit ensures that 0 to 5.5V can be
applied to the input pins without regard to the supply voltage.
This device can be used to interface 5V to 3V systems and two
supply systems such as battery back up. This circuit prevents
device destruction due to mismatched supply and input voltages.
TC74LVX373F
TC74LVX373FT
Features
•
High-speed: tpd = 5.8 ns (typ.) (VCC = 3.3 V)
•
Low power dissipation: ICC = 4 μA (max) (Ta = 25°C)
•
Input voltage level: VIL = 0.8 V (max) (VCC = 3 V)
VIH = 2.0 V (min) (VCC = 3 V)
•
•
Power-down protection provided on all inputs
∼ tpHL
Balanced propagation delays: tpLH −
•
Low noise: VOLP = 0.8 V (max)
•
Pin and function compatible with 74HC373
Weight
SOP20-P-300-1.27A
TSSOP20-P-0044-0.65A
1
: 0.22 g (typ.)
: 0.08 g (typ.)
2007-10-17
TC74LVX373F/FT
Pin Assignment (top view)
OE
IEC Logic Symbol
1
20
VCC
Q0
2
19
Q7
D0
3
18
D7
4
17
D6
Q1
5
16
Q6
Q2
6
15
Q5
D2
7
14
D5
D1
8
13
D4
9
12
Q4
GND 10
11
LE
D3
Q3
(1)
(11)
OE
LE
EN
C1
(3)
D0
D1
D2
D3
D4
D5
D6
D7
(2)
1D
Q0
(4)
(5)
(7)
(6)
(8)
(9)
(13)
(12)
(14)
(15)
(17)
(16)
(18)
(19)
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Truth Table
Inputs
Outputs
OE
LE
D
H
X
X
Z
L
L
X
Qn
L
H
L
L
L
H
H
H
X: Don’t care
Z: High impedance
Qn: Q outputs are latched at the time when the LE input is taken to a low logic level.
System Diagram
D1
4
D0
3
D
LE
OE
11
D2
7
D
L
Q
D3
8
D
L
Q
D4
13
D
L
Q
D5
14
D
L
Q
D6
17
D
L
Q
D7
18
D
L
Q
D
L
Q
L
Q
1
2
Q0
5
Q1
6
9
Q2
Q3
2
12
Q4
15
Q5
16
Q6
19
Q7
2007-10-17
TC74LVX373F/FT
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 3.6
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
0 to 100
ns/V
Output voltage
Note: 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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TC74LVX373F/FT
Electrical Characteristics
DC Characteristics
Characteristics
H-level
Symbol
VIH
⎯
Input voltage
L-level
H-level
VIL
VOH
Output voltage
⎯
IOH = −50 μA
VIN = VIH
IOH = −50 μA
or VIL
IOH = −4 mA
IOL = 50 μA
L-level
3-state output
Off-state current
VOL
IOZ
Ta = −40 to
85°C
Ta = 25°C
Test Condition
VIN = VIH
IOL = 50 μA
or VIL
IOL = 4 mA
VIN = VIH or VIL
VOUT = VCC or GND
Unit
VCC (V)
Min
Typ.
Max
Min
Max
2.0
1.5
⎯
⎯
1.5
⎯
3.0
2.0
⎯
⎯
2.0
⎯
3.6
2.4
⎯
⎯
2.4
⎯
2.0
⎯
⎯
0.5
⎯
0.5
3.0
⎯
⎯
0.8
⎯
0.8
3.6
⎯
⎯
0.8
⎯
0.8
2.0
1.9
2.0
⎯
1.9
⎯
3.0
2.9
3.0
⎯
2.9
⎯
3.0
2.58
⎯
⎯
2.48
⎯
2.0
⎯
0
0.1
⎯
0.1
3.0
⎯
0
0.1
⎯
0.1
3.0
⎯
⎯
0.36
⎯
0.44
3.6
⎯
⎯
±0.25
⎯
±2.5
μA
V
V
Input leakage current
IIN
VIN = 5.5 V or GND
3.6
⎯
⎯
±0.1
⎯
±1.0
μA
Quiescent supply current
ICC
VIN = VCC or GND
3.6
⎯
⎯
4.0
⎯
40.0
μA
Timing Requirements (input: tr = tf = 3 ns)
Characteristics
Minimum pulse width
Symbol
tW (H)
⎯
Minimum set-up time
ts
⎯
Minimum hold time
th
⎯
(LE)
Ta = 25°C
Ta = −40 to
85°C
VCC (V)
Limit
Limit
2.7
6.5
7.5
3.3 ± 0.3
5.0
5.0
2.7
6.0
6.0
3.3 ± 0.3
4.0
4.0
2.7
1.0
1.0
3.3 ± 0.3
1.0
1.0
Test Condition
4
Unit
ns
ns
ns
2007-10-17
TC74LVX373F/FT
AC Characteristics (input: tr = tf = 3 ns)
Characteristics
Symbol
VCC (V)
Propagation delay time
(LE-Q)
Propagation delay time
(D-Q)
Output disable time
Output to output skew
Input capacitance
Output capacitance
Power dissipation capacitance
Min
Typ.
Max
Min
Max
15
⎯
7.5
14.5
1.0
17.5
50
⎯
10.0
18.0
1.0
21.0
15
⎯
5.8
9.3
1.0
11.0
50
⎯
8.3
12.8
1.0
14.5
15
⎯
7.7
15.0
1.0
18.5
50
⎯
10.2
18.5
1.0
22.0
15
⎯
6.0
9.7
1.0
11.5
50
⎯
8.5
13.2
1.0
15.0
15
⎯
7.7
15.0
1.0
18.5
50
⎯
10.2
18.5
1.0
22.0
15
⎯
6.0
9.7
1.0
11.5
50
⎯
8.5
13.2
1.0
15.0
2.7
50
⎯
9.8
18.0
1.0
21.0
3.3 ± 0.3
50
⎯
8.2
12.8
1.0
14.5
2.7
50
⎯
⎯
1.5
⎯
1.5
3.3 ± 0.3
50
⎯
⎯
1.5
⎯
1.5
(Note 2)
⎯
4
10
⎯
10
pF
⎯
6
⎯
⎯
⎯
pF
⎯
27
⎯
⎯
⎯
pF
2.7
⎯
tpHL
3.3 ± 0.3
tpLH
2.7
⎯
tpHL
3.3 ± 0.3
tpZH
2.7
RL = 1 kΩ
3.3 ± 0.3
tpZL
tpLZ
tpHZ
RL = 1 kΩ
tosLH
tosHL
(Note 1)
CIN
COUT
Unit
CL (pF)
tpLH
Output enable time
Ta = −40 to
85°C
Ta = 25°C
Test Condition
⎯
CPD
(Note 3)
ns
ns
ns
ns
ns
Note 1: Parameter guaranteed by design.
(tosLH = |tpLHm − tpLHn|, tosHL = |tpHLm − tpHLn|)
Note 2: Parameter guaranteed by design.
Note 3: CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating
current consumption.
Average operating current can be obtained by the equation:
ICC (opr) = CPD・VCC・fIN + ICC/8 (per latch)
And the total CPD when n pcs. of Latch operate can be gained by the following equation:
CPD (total) = 14 + 13・n
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2007-10-17
TC74LVX373F/FT
Noise Characteristics (Ta = 25°C, input: tr = tf = 3 ns, CL = 50 pF)
Symbol
Test Condition
Quiet output maximum dynamic VOL
VOLP
⎯
Quiet output minimum dynamic VOL
VOLV
Minimum high level dynamic input voltage VIH
Maximum low level dynamic input voltage VIL
Characteristics
Typ.
Limit
Unit
3.3
0.5
0.8
V
⎯
3.3
−0.5
−0.8
V
VIHD
⎯
3.3
⎯
2.0
V
VILD
⎯
3.3
⎯
0.8
V
VCC (V)
Input Equivalent Circuit
INPUT
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2007-10-17
TC74LVX373F/FT
Package Dimensions
Weight: 0.22 g (typ.)
7
2007-10-17
TC74LVX373F/FT
Package Dimensions
Weight: 0.08 g (typ.)
8
2007-10-17
TC74LVX373F/FT
RESTRICTIONS ON PRODUCT USE
20070701-EN GENERAL
• The information contained herein is subject to change without notice.
• TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor
devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical
stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of
safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of
such TOSHIBA products could cause loss of human life, bodily injury or damage to property.
In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as
set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and
conditions set forth in the “Handling Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability
Handbook” etc.
• The TOSHIBA products listed in this document are intended for usage in general electronics applications
(computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances,
etc.).These TOSHIBA products are neither intended nor warranted for usage in equipment that requires
extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or
bodily injury (“Unintended Usage”). Unintended Usage include atomic energy control instruments, airplane or
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medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in his
document shall be made at the customer’s own risk.
• The products described in this document shall not be used or embedded to any downstream products of which
manufacture, use and/or sale are prohibited under any applicable laws and regulations.
• The information contained herein is presented only as a guide for the applications of our products. No
responsibility is assumed by TOSHIBA for any infringements of patents or other rights of the third parties which
may result from its use. No license is granted by implication or otherwise under any patents or other rights of
TOSHIBA or the third parties.
• Please contact your sales representative for product-by-product details in this document regarding RoHS
compatibility. Please use these products in this document in compliance with all applicable laws and regulations
that regulate the inclusion or use of controlled substances. Toshiba assumes no liability for damage or losses
occurring as a result of noncompliance with applicable laws and regulations.
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2007-10-17