TOSHIBA TC74LCX126FT

TC74LCX126F/FT/FK
TOSHIBA CMOS Digital Integrated Circuit
Silicon Monolithic
TC74LCX126F,TC74LCX126FT,TC74LCX126FK
Low-Voltage Quad Bus Buffer with 5-V Tolerant Inputs and Outputs
The TC74LCX126 is a high-performance CMOS quad bus
buffers. Designed for use in 3.3-V systems, it achieves high-speed
operation while maintaining the CMOS low power dissipation.
The device is designed for low-voltage (3.3 V) VCC applications,
but it could be used to interface to 5-V supply environment for
inputs.
This device requires the 3-state control input (OE) to be set
high to place the output into the high impedance state.
All inputs are equipped with protection circuits against static
discharge.
TC74LCX126FT
Features
•
Low-voltage operation: VCC = 2.0 to 3.6 V
•
High-speed operation: tpd = 6.0 ns (max) (VCC = 3.0 to 3.6 V)
•
Ouput current: |IOH|/IOL = 24 mA (min) (VCC = 3.0 V)
•
•
TC74LCX126F
Latch-up performance: −500 mA
Available in JEDEC SOP, JEITA SOP, TSSOP and
VSSOP (US)
•
•
Power-down protection is provided on all inputs and outputs
TC74LCX126FK
Pin and function compatible with the 74 series
(74AC/VHC/HC/F/ALS/LS etc.) 126 type
Weight
SOP14-P-300-1.27A
TSSOP14-P-0044-0.65A
VSSOP14-P-0030-0.50
1
: 0.18 g (typ.)
: 0.06 g (typ.)
: 0.02 g (typ.)
2007-10-19
TC74LCX126F/FT/FK
Pin Assignment (top view)
IEC Logic Symbol
1OE
1
14
VCC
1A
2
13
4OE
1Y
3
12
4A
2OE
4
1OE
1A
2OE
2A
3OE
3A
4Y
11
2A
5
10
3OE
2Y
6
9
3A
GND
7
8
3Y
4OE
4A
1
2
EN
4
5
10
9
13
12
3
1Y
6
2Y
8
3Y
11
4Y
Truth Table
Inputs
Outputs
OE
A
Y
L
X
Z
H
L
L
H
H
H
X: Don’t care
Z: High impedance
Absolute Maximum Ratings (Note 1)
Characteristics
Symbol
Rating
Unit
Power supply voltage
VCC
−0.5 to 7.0
V
DC input voltage
VIN
−0.5 to 7.0
V
−0.5 to 7.0 (Note 2)
DC output voltage
VOUT
Input diode current
IIK
−0.5 to VCC + 0.5
(Note 3)
−50
V
mA
Output diode current
IOK
±50
DC output current
IOUT
±50
mA
Power dissipation
DC VCC/ground current
Storage temperature
(Note 4)
mA
PD
180
mW
ICC/IGND
±100
mA
Tstg
−65 to 150
°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 range (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: Output in OFF state
Note 3: High or low state. IOUT absolute maximum rating must be observed.
Note 4: VOUT < GND, VOUT > VCC
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TC74LCX126F/FT/FK
Operating Ranges (Note 1)
Characteristics
Symbol
Power supply voltage
VCC
Input voltage
VIN
Output voltage
VOUT
Output current
IOH/IOL
Rating
Unit
2.0 to 3.6
1.5 to 3.6
(Note 2)
0 to 5.5
V
0 to 5.5
(Note 3)
0 to VCC
(Note 4)
±24
(Note 5)
±12
(Note 6)
Operating temperature
Topr
−40 to 85
Input rise and fall time
dt/dv
0 to 10
V
V
mA
°C
(Note 7)
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 VCC or GND.
Note 2: Data retention only
Note 3: Output in OFF state
Note 4: High or low state
Note 5: VCC = 3.0 to 3.6 V
Note 6: VCC = 2.7 to 3.0 V
Note 7: VIN = 0.8 to 2.0 V, VCC = 3.0 V
Electrical Characteristics
DC Characteristics (Ta = −40 to 85°C)
Characteristics
Input voltage
Min
Max
2.7 to 3.6
2.0
⎯
2.7 to 3.6
⎯
0.8
IOH = −100 μA
2.7 to 3.6
VCC
− 0.2
⎯
IOH = −12 mA
2.7
2.2
⎯
IOH = −18 mA
3.0
2.4
⎯
IOH = −24 mA
3.0
2.2
⎯
IOL = 100 μA
2.7 to 3.6
⎯
0.2
IOL = 12 mA
2.7
⎯
0.4
IOL = 16 mA
3.0
⎯
0.4
IOL = 24 mA
3.0
⎯
0.55
2.7 to 3.6
⎯
±5.0
μA
2.7 to 3.6
⎯
±5.0
μA
VIN/VOUT = 5.5 V
0
⎯
10.0
μA
VIN = VCC or GND
2.7 to 3.6
⎯
10.0
VIN/VOUT = 3.6 to 5.5 V
2.7 to 3.6
⎯
±10.0
VIH = VCC − 0.6 V
2.7 to 3.6
⎯
500
Symbol
Test Condition
H-level
VIH
⎯
L-level
VIL
⎯
H-level
VOH
VIN = VIH or VIL
Output voltage
L-level
VOL
Input leakage current
IIN
3-state output OFF state current
IOZ
Power-off leakage current
IOFF
Quiescent supply current
ICC
Increase in Icc per input
ΔICC
VIN = VIH or VIL
VIN = 0 to 5.5 V
VIN = VIH or VIL
VOUT = 0 to 5.5 V
3
VCC (V)
Unit
V
V
μA
2007-10-19
TC74LCX126F/FT/FK
AC Characteristics (Ta = −40 to 85°C)
Characteristics
Propagation delay time
Output enable time
Output disable time
Output to output skew
Note:
Symbol
tpLH
tpHL
tpZL
tPZH
tpLZ
tpHZ
Test Condition
Figure 1, Figure 2
Figure 1, Figure 3
Figure 1, Figure 3
tosLH
(Note)
tosHL
Min
Max
2.7
⎯
6.5
3.3 ± 0.3
1.5
6.0
2.7
⎯
8.0
3.3 ± 0.3
1.5
7.0
2.7
⎯
7.0
3.3 ± 0.3
1.5
6.0
2.7
⎯
⎯
3.3 ± 0.3
⎯
1.0
VCC (V)
Unit
ns
ns
ns
ns
Parameter guaranteed by design.
(tosLH = |tpLHm − tpLHn|, tosHL = |tpHLm − tpHLn|)
Dynamic Switching Characteristics (Ta = 25°C, input: tr = tf = 2.5 ns, CL = 50 pF, RL = 500 Ω)
Characteristics
Symbol
Test Condition
Quiet output maximum dynamic VOL
VOLP
VIH = 3.3 V, VIL = 0 V
Quiet output minimum dynamic VOL
|VOLV|
VIH = 3.3 V, VIL = 0 V
Typ.
Unit
3.3
0.8
V
3.3
0.8
V
Typ.
Unit
VCC (V)
Capacitive Characteristics (Ta = 25°C)
Characteristics
Input capacitance
Output capacitance
Power dissipation capacitance
Note:
Symbol
Test Condition
CIN
⎯
3.3
7
pF
COUT
⎯
3.3
8
pF
3.3
25
pF
CPD
fIN = 10 MHz
VCC (V)
(Note)
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/4 (per gate)
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TC74LCX126F/FT/FK
AC Test Circuit
RL
Switch
RL
Measure
CL
Output
Open
6.0 V
GND
CL = 50 pF
Parameter
Switch
tpLH, tpHL
Open
tpLZ, tpZL
6.0 V
tpHZ, tpZH
GND
RL = 500 Ω
Figure 1
AC Waveform
tr 2.5 ns
tf 2.5 ns
2.7 V
90%
1.5 V
Input
(A)
10%
GND
VOH
Output
(Y)
1.5 V
VOL
tpHL
tpLH
Figure 2 tpLH, tpHL
tf 2.5 ns
tr 2.5 ns
2.7 V
90%
1.5 V
Output Enable
(OE)
10%
tpLZ
GND
tpZL
3.0 V
Output (Y)
Low to Off to Low
1.5 V
tpHZ
VOL
+ 0.3 V
VOH − 0.3 V
Output (Y)
High to Off to High
VOL
tpZH
VOH
1.5 V
GND
Outputs
enabled
Outputs
disabled
Outputs
enabled
Figure 3 tpLZ, tpHZ, tpZL, tpZH
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TC74LCX126F/FT/FK
Package Dimensions
Weight: 0.18 g (typ.)
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TC74LCX126F/FT/FK
Package Dimensions
Weight: 0.06 g (typ.)
7
2007-10-19
TC74LCX126F/FT/FK
Package Dimensions
Weight: 0.02 g (typ.)
8
2007-10-19
TC74LCX126F/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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