TOSHIBA TC74LCX157F_07

TC74LCX157F/FN/FT/FK
TOSHIBA CMOS Digital Integrated Circuit
Silicon Monolithic
TC74LCX157F,TC74LCX157FN,TC74LCX157FT,TC74LCX157FK
Low Voltage Quad 2-Channel Multiplexer with 5 V Tolerant Inputs and Outputs
The TC74LCX157 is a high-performance CMOS multiplexer.
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.
It consists of four 2-input digital multiplexers with common
SELECT and ST inputs. When the ST input is held “H” level,
selection of data is inhibited and all the outputs become “L” level.
The SELECT decoding determines whether the A or B inputs get
routed to their corresponding Y outputs.
All inputs are equipped with protection circuits against static
discharge.
Note: xxxFN (JEDEC SOP) is not available in
Japan.
TC74LCX157F
TC74LCX157FN
Features
•
Low-voltage operation: VCC = 2.0 to 3.6 V
•
High-speed operation: tpd = 5.8 ns (max) (VCC = 3.0 to 3.6 V)
•
Ouput current: |IOH|/IOL = 24 mA (min) (VCC = 3.0 V)
•
Latch-up performance: −500 mA
•
Available in JEDEC SOP, JEITA SOP, TSSOP and
TC74LCX157FT
VSSOP (US)
•
Power-down protection provided on all inputs and outputs
•
Pin and function compatible with the 74 series
(74AC/VHC/HC/F/ALS/LS etc.) 157 type
TC74LCX157FK
Weight
SOP16-P-300-1.27A
SOL16-P-150-1.27
TSSOP16-P-0044-0.65A
VSSOP16-P-0030-0.50
1
: 0.18 g (typ.)
: 0.12 g (typ.)
: 0.06 g (typ.)
: 0.02 g (typ.)
2007-10-19
TC74LCX157F/FN/FT/FK
Pin Assignment (top view)
IEC Logic Symbol
ST
SELECT
1
16
VCC
1A
2
15
ST
SELECT
1B
3
14
4A
1Y
4
13
4B
2A
5
12
4Y
2B
6
11
3A
2Y
7
10
3B
1A
1B
2A
2B
3A
3B
4A
4B
GND
8
9
3Y
(15)
(1)
(2)
(3)
(5)
(6)
(11)
(10)
(14)
(13)
EN
G1
1
1
MUX
(4)
(7)
(9)
(12)
1Y
2Y
3Y
4Y
Truth Table
Inputs
Outputs
ST
SELECT
A
B
Y
H
X
X
X
L
L
L
L
X
L
L
L
H
X
H
L
H
X
L
L
L
H
X
H
H
X: Don’t care
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TC74LCX157F/FN/FT/FK
System Diagram
1A
1B
2A
2B
3A
3B
4A
4B
4
3
1Y
5
7
6
2Y
11
9
10
3Y
14
12
13
4Y
1
SELECT
ST
2
15
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
−50
Output diode current
IOK
±50
DC output current
IOUT
±50
mA
Power dissipation
DC VCC/ground current
−0.5 to VCC + 0.5
(Note 3)
V
mA
(Note 4)
mA
PD
180
mW
ICC/IGND
±100
mA
Tstg
−65 to 150
°C
Storage temperature
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: VCC = 0 V
Note 3: High or low state. IOUT absolute maximum rating must be observed.
Note 4: VOUT < GND, VOUT > VCC
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TC74LCX157F/FN/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
V
1.5 to 3.6 (Note 2)
0 to 5.5
V
0 to 5.5 (Note 3)
V
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
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: VCC = 0 V
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
Symbol
Test Condition
H-level
VIH
⎯
L-level
VIL
⎯
H-level
VOH
VIN = VIH or VIL
Output voltage
L-level
Input leakage current
Power-off leakage current
VOL
IIN
IOFF
Quiescent supply current
ICC
Increase in Icc per input
ΔICC
VIN = VIH or VIL
VIN = 0 to 5.5 V
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
μA
VCC (V)
VIN/VOUT = 5.5 V
0
⎯
10.0
VIN = VCC or GND
2.7 to 3.6
⎯
10.0
VIN = 3.6 to 5.5 V
2.7 to 3.6
⎯
±10.0
VIH = VCC − 0.6 V
2.7 to 3.6
⎯
500
4
Unit
V
V
μA
2007-10-19
TC74LCX157F/FN/FT/FK
AC Characteristics (Ta = −40 to 85°C)
Characteristics
Symbol
Propagation delay time
tpLH
(A, B-Y)
tpHL
Propagation delay time
tpLH
(SELECT-Y)
tpHL
Propagation delay time
tpLH
( ST -Y)
tpHL
Output to output skew
Note:
Test Condition
Figure 1, Figure 2
Figure 1, Figure 2
Figure 1, Figure 2
tosLH
(Note)
tosHL
Min
Max
2.7
⎯
6.3
3.3 ± 0.3
1.5
5.8
2.7
⎯
8.0
3.3 ± 0.3
1.5
7.0
2.7
⎯
8.0
3.3 ± 0.3
1.5
7.0
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
⎯
0
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
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2007-10-19
TC74LCX157F/FN/FT/FK
AC Test Circuit
Output
RL
CL
Measure
CL = 50 pF
RL = 500 Ω
Figure 1
AC Waveform
tr 2.5 ns
tf 2.5 ns
2.7 V
90%
1.5 V
Input
10%
GND
VOH
Non-Inverting
Output
1.5 V
tpLH
tpHL
VOL
VOH
Inverting
Output
1.5 V
tpHL
tpLH
VOL
Figure 2 tpLH, tpHL
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TC74LCX157F/FN/FT/FK
Package Dimensions
Weight: 0.18 g (typ.)
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TC74LCX157F/FN/FT/FK
Package Dimensions (Note)
Note:
This package is not available in japan.
Weight: 0.12 g (typ.)
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TC74LCX157F/FN/FT/FK
Package Dimensions
Weight: 0.06 g (typ.)
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TC74LCX157F/FN/FT/FK
Package Dimensions
Weight: 0.02 g (typ.)
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2007-10-19
TC74LCX157F/FN/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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