TOSHIBA TC7MH138FK

TC7MH138FK
TOSHIBA CMOS Digital Integrated Circuit
Silicon Monolithic
TC7MH138FK
3-to-8 Line Decoder
The TC7MH138FK is an advanced high speed CMOS 3-to-8
decoder fabricated with silicon gate C2MOS technology.
It achieves the high speed operation similar to equivalent
bipolar schottky TTL while maintaining the CMOS low power
dissipation.
When the device is enabled, 3 binary select inputs (A, B and C)
determine which one of the outputs (Y0 - Y7) will go low.
When enable input G1 is held low or either G2A or G2B is held
high, decoding function is inhibited and all outputs go high.
G1, G2A, and G2B inputs are provided to ease cascade
connection and for use as an address decoder for memory
systems.
Weight: 0.02 g (typ.)
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.
Features
•
High speed: tpd = 5.7 ns (typ.) (VCC = 5 V)
•
Low power dissipation: ICC = 4 μA (max) (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) = 2~5.5 V
•
Pin and function compatible with 74ALS138
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TC7MH138FK
Pin Assignment (top view)
A
1
16
VCC
B
2
15
Y0
C
3
14
Y1
G2A
4
13
Y2
G2B
5
12
Y3
G1
6
11
Y4
Y7
7
10
Y5
GND
8
9
Y6
IEC Logic Symbol
A
B
C
G1
G2 A
G2B
(1)
(2)
(3)
(6)
(4)
(5)
Bin/Oct
1
2
4
&
EN
0
1
2
3
4
5
6
7
(15)
(14)
(13)
(12)
(11)
(10)
(9)
(7)
A
B
C
Y0
Y1
Y2
(1)
(2)
(3)
Dmux
0
2
Y3
Y4
Y5
G1
Y6
G2 A
G2B
Y7
2
(6)
(4)
(5)
&
0
G
7
0
1
2
3
4
5
6
7
(15)
(14)
(13)
(12)
(11)
(10)
(9)
(7)
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
2007-10-19
TC7MH138FK
Truth Table
Inputs
Outputs
Enable
Select
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
H
H
H
H
H
H
H
H
Selected Output
G1
G2 A
G 2B
C
B
A
L
X
X
X
X
X
X
H
X
X
X
X
H
H
H
H
H
H
H
H
None
X
X
H
X
X
X
H
H
H
H
H
H
H
H
None
H
L
L
L
L
L
L
H
H
H
H
H
H
H
Y0
H
L
L
L
L
H
H
L
H
H
H
H
H
H
Y1
H
L
L
L
H
L
H
H
L
H
H
H
H
H
Y2
H
L
L
L
H
H
H
H
H
L
H
H
H
H
Y3
H
L
L
H
L
L
H
H
H
H
L
H
H
H
Y4
H
L
L
H
L
H
H
H
H
H
H
L
H
H
Y5
H
L
L
H
H
L
H
H
H
H
H
H
L
H
Y6
H
L
L
H
H
H
H
H
H
H
H
H
H
L
Y7
None
X: Don’t care
Logic Diagram
15
14
A
1
13
12
Select
inputs
B
2
11
10
C
3
9
7
G2 A
Enable
inputs
G 2B
G1
4
Y0
Y1
Y2
Y3
Y4
Data
outputs
Y5
Y6
Y7
5
6
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TC7MH138FK
Absolute Maximum Ratings (Note)
Characteristics
Symbol
Rating
Unit
Supply voltage range
VCC
−0.5~7.0
V
DC input voltage
VIN
−0.5~7.0
V
DC output voltage
VOUT
−0.5~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
−65~150
°C
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
Supply voltage
Input voltage
Symbol
Rating
Unit
VCC
2.0~5.5
V
VIN
0~5.5
V
VOUT
0~VCC
V
Operating temperature
Topr
−40~85
°C
Input rise and fall time
dt/dv
Output voltage
0~100 (VCC = 3.3 ± 0.3 V)
0~20 (VCC = 5 ± 0.5 V)
ns/V
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.
Electrical Characteristics
DC Characteristics
Characteristics
High level
Symbol
Test Condition
VIH
⎯
Ta = 25°C
Input voltage
Low level
High level
⎯
VIL
VOH
VIN = VIH
or VIL
Output voltage
Low level
VOL
VIN = VIH
or VIL
IOH = −50 μA
Ta = −40~85°C
VCC (V)
Min
Typ.
Max
Min
Max
2.0
1.50
⎯
⎯
1.50
⎯
3.0~5.5
VCC
× 0.7
⎯
⎯
VCC
× 0.7
⎯
2.0
⎯
⎯
0.50
⎯
0.50
3.0~5.5
⎯
⎯
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
0.1
⎯
0.1
3.0
⎯
0
0.1
⎯
0.1
4.5
⎯
0
0.1
⎯
0.1
IOL = 4 mA
3.0
⎯
⎯
0.36
⎯
0.44
IOL = 8 mA
4.5
⎯
⎯
0.36
⎯
0.44
IOL = 50 μA
Unit
V
V
Input leakage current
IIN
VIN = 5.5 V or GND
0~5.5
⎯
⎯
±0.1
⎯
±1.0
μA
Quiescent supply current
ICC
VIN = VCC or GND
5.5
⎯
⎯
4.0
⎯
40.0
μA
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TC7MH138FK
AC Characteristics (Input: tr = tf = 3 ns)
Characteristics
Propagation delay time
(A, B, C- Y )
Symbol
Ta = 25°C
Test Condition
VCC (V) CL (pF)
3.3 ± 0.3
tpLH
tpHL
⎯
5.0 ± 0.5
Propagation delay time
(G1- Y )
3.3 ± 0.3
tpLH
tpHL
⎯
5.0 ± 0.5
Propagation delay time
( G2 - Y )
3.3 ± 0.3
tpLH
tpHL
⎯
5.0 ± 0.5
Input capacitance
CIN
Power dissipation
capacitance
CPD
Ta = −40~85°C
Unit
Min
Typ.
Max
Min
Max
15
⎯
8.2
11.4
1.0
13.5
50
⎯
10.0
15.8
1.0
18.0
15
⎯
5.7
8.1
1.0
9.5
50
⎯
7.2
10.1
1.0
11.5
15
⎯
8.1
12.8
1.0
15.0
50
⎯
10.6
16.3
1.0
18.5
15
⎯
5.6
8.1
1.0
9.5
50
⎯
7.1
10.1
1.0
11.5
15
⎯
8.2
11.4
1.0
13.5
50
⎯
10.7
14.9
1.0
17.0
15
⎯
5.8
8.1
1.0
9.5
50
⎯
7.3
10.1
1.0
11.5
⎯
4
10
⎯
10
pF
⎯
34
⎯
⎯
⎯
pF
⎯
(Note)
ns
ns
ns
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
Input Equivalent Circuit
Input
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TC7MH138FK
Package Dimensions
Weight: 0.02 g (typ.)
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TC7MH138FK
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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