TC7MB3257FK(EL) [TOSHIBA]
Multiplexer/Demultiplexer Bus Switch 1-Element CMOS 8-IN 16-Pin VSSOP T/R;
| 型号： | TC7MB3257FK(EL) |
| 厂家： | 
TOSHIBA |
| 描述： | Multiplexer/Demultiplexer Bus Switch 1-Element CMOS 8-IN 16-Pin VSSOP T/R 解复用器 逻辑集成电路 光电二极管 |
| 文件： | 总8页 (文件大小：121K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TC7MB3257FT/FK
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC7MB3257FT, TC7MB3257FK
Quad 1-of-2 Multiplexer/Demultiplexer
The TC7MB3257 is high-speed CMOS quad 1-2
multiplexer/demultiplexer. The low on resistance of the switch
allows connections to be made with minimal propagation delay
time.
TC7MB3257FT
This device consists of four individual two-inputs
multiplexer/demultiplexer with common select input (S) and
output enable ( OE ). The A inputs is connected to the B1 or B2
outputs determined by the combination both the select input (S)
and output enable ( OE ). When the output enable ( OE ) input is
held “H” level, the switches are open with regardless the state of
select inputs and a high-impedance state exists between the
switches.
TC7MB3257FK
All inputs are equipped with protection circuits against static
discharge.
Features
•
•
•
•
Operating voltage: V
= 4.5 to 5.5 V
CC
High speed: t = 0.25 ns (max)
pd
Low on resistance: R
= 5 Ω (typ.)
ON
ESD performance:Machine model ≥ ±200 V
Human body model ≥ ±2000 V
Weight:
•
•
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Compatible with TTL outputs (control inputs)
Package: TSSOP16,VSSOP16 (US16)
TSSOP16-P-0044-0.65A
VSSOP16-P-0030-0.50
: 0.06 g (typ.)
: 0.02 g (typ.)
Pin compatible with the 74xx257 type.
Functionally equivalent to (FST/CBT) 3257.
Pin Assignment (top view)
1
2
3
4
5
6
7
8
16
15
V
S
1B1
1B2
1A
CC
OE
14 4B1
13 4B2
12 4A
2B1
2B2
2A
11 3B1
10 3B2
GND
9
3A
(top view)
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TC7MB3257FT/FK
Truth Table
Inputs
Function
OE
L
S
L
A port = B1 port
A port = B2 port
Disconnect
L
H
X
H
System Diagram
4
2
1A
1B1
1B2
3
5
7
2A
2B1
2B2
6
9
11
10
14
13
3A
3B1
3B2
12
4A
4B1
4B2
1
S
15
OE
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TC7MB3257FT/FK
Absolute Maximum Ratings (Note)
Characteristics
Power supply range
Symbol
Rating
Unit
V
−0.5 to 7.0
−0.5 to 7.0
−0.5 to 7.0
−50
V
V
CC
DC input voltage
V
IN
DC switch voltage
Input diode current
Continuous channel current
Power dissipation
V
V
S
I
mA
mA
mW
mA
°C
IK
I
128
S
P
180
D
DC V /GND current
CC
I
/I
±100
CC GND
Storage temperature
T
stg
−65 to 150
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
Symbol
Rating
Unit
V
4.5 to 5.5
0 to 5.5
0 to 5.5
−40 to 85
0 to 10
V
V
CC
Input voltage
V
IN
Switch voltage
V
V
S
Operating temperature
Input rise and fall time
T
opr
°C
ns/V
dt/dv
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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TC7MB3257FT/FK
Electrical Characteristics
DC Characteristics (Ta = −40 to 85°C)
Typ.
(Note 1)
Characteristics
Symbol
Test Condition
Min
Max
Unit
V
V
(V)
CC
“H” level
“L” level
V
⎯
⎯
4.5 to 5.5
4.5 to 5.5
4.5 to 5.5
0
2.0
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
IH
Input voltage
V
0.8
IL
Input leakage current ( OE , S)
Power off leakage current
I
IN
V
= 0 to 5.5 V
IN
±1.0
±1.0
μA
μA
I
A, B, OE = 0 to 5.5 V
OFF
Off-state leakage current
(switch off)
I
A, B = 0 to 5.5 V, OE = V
4.5 to 5.5
⎯
⎯
±1.0
μA
SZ
CC
I
I
= 64 mA
4.5
4.5
4.5
5.5
5.5
⎯
⎯
⎯
⎯
⎯
5
5
7
7
IS
IS
V
= 0 V
IS
ON resistance
(Note 2)
R
Ω
= 30 mA
ON
V
V
V
= 2.4 V, I = 15 mA
IS
10
⎯
⎯
15
10
2.5
IS
IN
IN
Quiescent supply current
Increase in I per input
I
= V
or GND, I
= 0
μA
CC
CC
OUT
ΔI
= 3.4 V (one input)
mA
CC
CC
Note 1: Typical values are at VCC = 5 V, Ta = 25°C.
Note 2: Measured by the voltage drop between A and B pins at the indicated current through the switch.
ON resistance is determined by the lower of the voltages on the two (A or B) pins.
AC Characteristics (Ta = −40 to 85°C)
Characteristics
Symbol
Test Condition
Min
Max
Unit
V
(V)
CC
Propagation delay time
(bus to bus)
t
t
t
t
pLH
pHL
pLH
pHL
Figure 1, Figure 2
(Note)
4.5
⎯
⎯
⎯
⎯
⎯
⎯
0.25
5.0
5.5
5.5
5.0
5.0
ns
ns
ns
ns
ns
ns
Propagation delay time
(S to bus)
Figure 1, Figure 2
Figure 1, Figure 3
Figure 1, Figure 3
Figure 1, Figure 3
Figure 1, Figure 3
4.5
4.5
4.5
4.5
4.5
Output enable time
( OE to bus)
t
pZL
t
pZH
Output enable time
(S to bus)
t
pZL
t
pZH
Output disable time
( OE to bus)
t
pLZ
t
pHZ
Output disable time
(S to bus)
t
pLZ
t
pHZ
Note: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay
other than the RC delay of the typical on resistance of the switch and the 50 pF load capacitance, when driven
by an ideal voltage the source (zero output impedance).
Capacitive Characteristics (Ta = 25°C)
Characteristics
Symbol
Test Condition
Typ.
Unit
V
(V)
CC
Control pin input capacitance ( OE , S)
Switch terminal capacitance (B1,B2)
Switch terminal capacitance (A)
C
(Note)
(Note)
(Note)
5.0
3
pF
pF
pF
IN
I/O
I/O
C
C
OE = V
OE = V
5.0
5.0
10
17
CC
CC
Note: This parameter is guaranteed by design.
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TC7MB3257FT/FK
AC Test Circuit
Open
7.0 V
GND
Switch
Parameter
Switch
t
, t
pLH pHL
Open
7.0 V
Open
Measure
Output
t
, t
pLZ pZL
t
, t
C
R
= 50 pF
= 500 Ω
pHZ pZH
L
L
Figure 1
AC Waveform
t 2.5 ns
r
t 2.5 ns
f
3.0 V
90%
1.5 V
Input
10%
GND
V
V
OH
OL
Output
1.5 V
t
, t
pLH pHL
t
, t
pHL PLH
Figure 2 t
, t
pLH pHL
t 2.5 ns
r
t 2.5 ns
f
3.0 V
GND
3.5 V
90%
1.5 V
Output Enable
( OE )
10%
t
t
t
pLZ
pZL
Output (A, B)
1.5 V
1.5 V
Low to Off to Low
V
+
OL
0.3 V
V
V
OL
t
pHZ
pZH
OH
V
− 0.3 V
OH
Output (A, B)
High to Off to High
GND
Outputs
enabled
Outputs
disabled
Outputs
enabled
Figure 3 t
, t
, t
, t
pLZ pHZ pZL pZH
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TC7MB3257FK
Package Dimensions
Weight: 0.06 g (typ.)
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TC7MB3257FK
Package Dimensions
Weight: 0.02 g (typ.)
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TC7MB3257FK
RESTRICTIONS ON PRODUCT USE
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Toshiba Corporation, and its subsidiaries and affiliates (collectively “TOSHIBA”), reserve the right to make changes to the information
in this document, and related hardware, software and systems (collectively “Product”) without notice.
This document and any information herein may not be reproduced without prior written permission from TOSHIBA. Even with
TOSHIBA’s written permission, reproduction is permissible only if reproduction is without alteration/omission.
Though TOSHIBA works continually to improve Product’s quality and reliability, Product can malfunction or fail. Customers are
responsible for complying with safety standards and for providing adequate designs and safeguards for their hardware, software and
systems which minimize risk and avoid situations in which a malfunction or failure of Product could cause loss of human life, bodily
injury or damage to property, including data loss or corruption. Before creating and producing designs and using, customers must
also refer to and comply with (a) the latest versions of all relevant TOSHIBA information, including without limitation, this document,
the specifications, the data sheets and application notes for Product and the precautions and conditions set forth in the “TOSHIBA
Semiconductor Reliability Handbook” and (b) the instructions for the application that Product will be used with or for. Customers are
solely responsible for all aspects of their own product design or applications, including but not limited to (a) determining the
appropriateness of the use of this Product in such design or applications; (b) evaluating and determining the applicability of any
information contained in this document, or in charts, diagrams, programs, algorithms, sample application circuits, or any other
referenced documents; and (c) validating all operating parameters for such designs and applications. TOSHIBA ASSUMES NO
LIABILITY FOR CUSTOMERS’ PRODUCT DESIGN OR APPLICATIONS.
•
Product is intended for use in general electronics applications (e.g., computers, personal equipment, office equipment, measuring
equipment, industrial robots and home electronics appliances) or for specific applications as expressly stated in this document.
Product is neither intended nor warranted for use in equipment or systems that require extraordinarily high levels of quality and/or
reliability and/or a malfunction or failure of which may cause loss of human life, bodily injury, serious property damage or serious
public impact (“Unintended Use”). Unintended Use includes, without limitation, equipment used in nuclear facilities, equipment used
in the aerospace industry, medical equipment, equipment used for automobiles, trains, ships and other transportation, traffic signaling
equipment, equipment used to control combustions or explosions, safety devices, elevators and escalators, devices related to electric
power, and equipment used in finance-related fields. Do not use Product for Unintended Use unless specifically permitted in this
document.
•
•
Do not disassemble, analyze, reverse-engineer, alter, modify, translate or copy Product, whether in whole or in part.
Product shall not be used for or incorporated into any products or systems whose manufacture, use, or sale is prohibited under any
applicable laws or regulations.
•
•
The information contained herein is presented only as guidance for Product use. No responsibility is assumed by TOSHIBA for any
infringement of patents or any other intellectual property rights of third parties that may result from the use of Product. No license to
any intellectual property right is granted by this document, whether express or implied, by estoppel or otherwise.
ABSENT A WRITTEN SIGNED AGREEMENT, EXCEPT AS PROVIDED IN THE RELEVANT TERMS AND CONDITIONS OF SALE
FOR PRODUCT, AND TO THE MAXIMUM EXTENT ALLOWABLE BY LAW, TOSHIBA (1) ASSUMES NO LIABILITY
WHATSOEVER, INCLUDING WITHOUT LIMITATION, INDIRECT, CONSEQUENTIAL, SPECIAL, OR INCIDENTAL DAMAGES OR
LOSS, INCLUDING WITHOUT LIMITATION, LOSS OF PROFITS, LOSS OF OPPORTUNITIES, BUSINESS INTERRUPTION AND
LOSS OF DATA, AND (2) DISCLAIMS ANY AND ALL EXPRESS OR IMPLIED WARRANTIES AND CONDITIONS RELATED TO
SALE, USE OF PRODUCT, OR INFORMATION, INCLUDING WARRANTIES OR CONDITIONS OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE, ACCURACY OF INFORMATION, OR NONINFRINGEMENT.
•
•
Do not use or otherwise make available Product or related software or technology for any military purposes, including without
limitation, for the design, development, use, stockpiling or manufacturing of nuclear, chemical, or biological weapons or missile
technology products (mass destruction weapons). Product and related software and technology may be controlled under the
Japanese Foreign Exchange and Foreign Trade Law and the U.S. Export Administration Regulations. Export and re-export of Product
or related software or technology are strictly prohibited except in compliance with all applicable export laws and regulations.
Please contact your TOSHIBA sales representative for details as to environmental matters such as the RoHS compatibility of Product.
Please use Product in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances,
including without limitation, the EU RoHS Directive. TOSHIBA assumes no liability for damages or losses occurring as a result of
noncompliance with applicable laws and regulations.
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