TOSHIBA TC74VHC244F

TC74VHC240,244F/FT/FK
TOSHIBA CMOS Digital Integrated Circuit
Silicon Monolithic
TC74VHC240F,TC74VHC240FT,TC74VHC240FK
TC74VHC244F,TC74VHC244FT,TC74VHC244FK
Octal Bus Buffer
TC74VHC240F/FT/FK
Inverted, 3-State Outputs
TC74VHC244F/FT/FK
Non-Inverted, 3-State Outputs
The TC74VHC240 and 244 are advanced high speed CMOS
OCTAL BUS BUFFERs fabricated with silicon gate C2MOS
technology.
They achieve the high speed operation similar to equivalent
Bipolar Schottky TTL while maintaining the CMOS low power
dissipation.
The 74VHC240 is an inverting 3-state buffer having two
active-low output enables. The TC74VHC244 is a non-inverting
3-state buffer, and has two active-low output enables.
These devices are designed to be used with 3-state memory
address drivers, etc.
An input protection circuit ensures that 0 to 5.5 V can be
applied to the input pins without regard to the supply voltage.
This device can be used to interface 5 V to 3 V systems and two
supply systems such as battery back up. This circuit prevents
device destruction due to mismatched supply and input voltages.
TC74VHC240F, TC74VHC244F
TC74VHC240FT, TC74VHC244FT
TC74VHC240FK, TC74VHC244FK
Features
•
High speed: tpd = 3.9 ns (typ.) at VCC = 5 V
•
Low power dissipation: ICC = 4 μA (max) at Ta = 25°C
•
High noise immunity: VNIH = VNIL = 28% VCC (min)
•
•
Power down protection is provided on all inputs.
Balanced propagation delays: tpLH ∼
− tpHL
•
Wide operating voltage range: VCC (opr) = 2 to 5.5 V
•
Low noise: VOLP = 0.9 V (max)
•
Pin and function compatible with 74ALS240/244
Weight
SOP20-P-300-1.27A
TSSOP20-P-0044-0.65A
VSSOP20-P-0030-0.50
1
: 0.22 g (typ.)
: 0.08 g (typ.)
: 0.03 g (typ.)
2007-10-01
TC74VHC240,244F/FT/FK
Pin Assignment
TC74VHC244
TC74VHC240
1G
1
20
VCC
1G
1
20
VCC
1A1
2
19
2G
1A1
2
19
2G
3
18
1Y1
2Y4
3
18
1Y1
1A2
4
17
2A4
1A2
4
17
2A4
2Y3
5
16
1Y 2
2Y3
5
16
1Y2
1A3
6
15
2A3
1A3
6
15
2A3
2Y 2
7
14
1Y3
2Y2
7
14
1Y3
1A4
8
13
2A2
1A4
8
13
2A2
2Y1
9
12
1Y 4
2Y1
9
12
1Y4
GND 10
11
2A1
GND 10
11
2A1
2Y 4
(top view)
(top view)
IEC Logic Symbol
TC74VHC244
TC74VHC240
1G
1A1
1A2
1A3
1A4
2G
2A1
2A2
2A3
2A4
(1)
1G
EN
(2)
(4)
(18)
(16)
(6)
(8)
(14)
(12)
(19)
1A1
1A2
1A3
1A4
1Y1
1Y 2
1Y3
1Y 4
2G
EN
(11)
(13)
(15)
(17)
(9)
(7)
(5)
(3)
2A1
2A2
2A3
2A4
2Y1
2Y 2
2Y3
2Y 4
(1)
EN
(2)
(4)
(18)
(16)
(6)
(8)
(14)
(12)
(19)
(11)
(13)
(15)
(17)
1Y1
1Y2
1Y3
1Y4
EN
(9)
(7)
(5)
(3)
2Y1
2Y2
2Y3
2Y4
Truth Table
Inputs
Outputs
G
An
Yn
Yn
L
L
L
H
L
H
H
L
H
X
Z
Z
X: Don’t care
Z: High impedance
Yn: TC74VHC244
Y n : TC74VHC240
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TC74VHC240,244F/FT/FK
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 5.5
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
Output voltage
Note:
0 to 100 (VCC = 3.3 ± 0.3 V)
0 to 20 (VCC = 5 ± 0.5 V)
ns/V
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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TC74VHC240,244F/FT/FK
Electrical Characteristics
DC Characteristics
Characteristics
Min
Typ.
Max
Min
Max
2.0
1.50
⎯
⎯
1.50
⎯
3.0 to
5.5
VCC ×
0.7
⎯
⎯
2.0
⎯
⎯
0.50
3.0 to
5.5
⎯
⎯
VCC ×
0.3
―
VCC ×
0.3
2.0
1.9
2.0
⎯
1.9
⎯
3.0
2.9
3.0
⎯
2.9
⎯
4.5
4.4
4.5
⎯
4.4
⎯
IOH = −4 mA
3.0
2.58
⎯
⎯
2.48
⎯
IOH = −8 mA
4.5
3.94
⎯
⎯
3.80
⎯
2.0
⎯
0.0
0.1
⎯
0.1
3.0
⎯
0.0
0.1
⎯
0.1
4.5
⎯
0.0
0.1
⎯
0.1
IOL = 4 mA
3.0
⎯
⎯
0.36
⎯
0.44
IOL = 8 mA
4.5
⎯
⎯
0.36
⎯
0.44
5.5
⎯
⎯
±0.25
⎯
±2.50
μA
VIH
⎯
Low-level input
voltage
VIL
⎯
IOH = −50 μA
VOH
VIN
= VIH or VIL
IOL = 50 μA
Low-level output
voltage
VOL
Unit
VCC (V)
High-level input
voltage
High-level output
voltage
Ta =
−40 to 85°C
Ta = 25°C
Test Condition
Symbol
VIN
= VIH or VIL
VIN = VIH or VIL
VCC ×
0.7
―
⎯
V
0.50
V
V
V
3-state output
off-state current
IOZ
Input leakage
current
IIN
VIN = 5.5 V or GND
0 to 5.5
⎯
⎯
±0.1
⎯
±1.0
μA
Quiescent supply
current
ICC
VIN = VCC or GND
5.5
⎯
⎯
4.0
⎯
40.0
μA
VOUT = VCC or GND
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TC74VHC240,244F/FT/FK
AC Characteristics (input: tr = tf = 3 ns)
Characteristics
VCC (V)
Propagation delay
time
tpLH
(TC74VHC240)
tpHL
Propagation delay
time
tpLH
(TC74VHC244)
tpHL
3-state output enable
time
3-state output disable
time
Output to output skew
Input capacitance
Output capacitance
Power dissipation
capacitance (Note 2)
tpZL
tpZH
tpLZ
tpHZ
tosLH
tosHL
CL (pF)
Min
Typ.
Max
Min
Max
15
⎯
5.3
7.5
1.0
9.0
50
⎯
7.8
11.0
1.0
12.5
15
⎯
3.6
5.5
1.0
6.5
50
⎯
5.1
7.5
1.0
8.5
15
⎯
5.8
8.4
1.0
10.0
50
⎯
8.3
11.9
1.0
13.5
15
⎯
3.9
5.5
1.0
6.5
50
⎯
5.4
7.5
1.0
8.5
15
⎯
6.6
10.6
1.0
12.5
50
⎯
9.1
14.1
1.0
16.0
15
⎯
4.7
7.3
1.0
8.5
50
⎯
6.2
9.3
1.0
10.5
3.3 ± 0.3
50
⎯
10.3
14.0
1.0
16.0
5.0 ± 0.5
50
⎯
6.7
9.2
1.0
10.5
3.3 ± 0.3
50
⎯
⎯
1.5
⎯
1.5
5.0 ± 0.5
50
⎯
⎯
1.0
⎯
1.0
3.3 ± 0.3
⎯
5.0 ± 0.5
3.3 ± 0.3
⎯
5.0 ± 0.5
3.3 ± 0.3
RL = 1 kΩ
5.0 ± 0.5
RL = 1 kΩ
(Note 1)
Ta =
−40 to 85°C
Ta = 25°C
Test Condition
Symbol
Unit
ns
ns
ns
ns
ns
CIN
⎯
⎯
4
10
⎯
10
pF
COUT
⎯
⎯
6
⎯
⎯
⎯
pF
TC74VHC240
⎯
17
⎯
⎯
⎯
TC74VHC244
⎯
19
⎯
⎯
⎯
CPD
pF
Note 1: Parameter guaranteed by design.
tosLH = |tpLHm − tpLHn|, tosHL = |tpHLm − tpHLn|
Note 2: 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/8 (per bit)
Noise Characteristics (input: tr = tf = 3 ns) (Note)
Characteristics
Ta = 25°C
Test Condition
Symbol
VCC (V)
Typ.
Limit
0.5
0.8
(0.6)
(0.9)
−0.5
−0.8
(−0.6)
(−0.9)
Unit
Quiet output maximum dynamic VOL
VOLP
CL = 50 pF
5.0
Quiet output minimum dynamic VOL
VOLV
CL = 50 pF
5.0
Minimum high level dynamic input
voltage
VIHD
CL = 50 pF
5.0
⎯
3.5
V
Maximum low level dynamic input
voltage
VILD
CL = 50 pF
5.0
⎯
1.5
V
Note:
V
V
The value in ( ) only applies to JEDEC SOP (FW) devices.
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TC74VHC240,244F/FT/FK
Input Equivalent Circuit
INPUT
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TC74VHC240,244F/FT/FK
Package Dimensions
Weight: 0.22 g (typ.)
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TC74VHC240,244F/FT/FK
Package Dimensions
Weight: 0.08 g (typ.)
8
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TC74VHC240,244F/FT/FK
Package Dimensions
Weight: 0.03 g (typ.)
9
2007-10-01
TC74VHC240,244F/FT/FK
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
spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments,
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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2007-10-01