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PDF HD74CBT3257 Data sheet ( Hoja de datos )
| Número de pieza | HD74CBT3257 | |
| Descripción | 4-bit 1-of-2 FET Multiplexer / Demultiplexer | |
| Fabricantes | Hitachi Semiconductor | |
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HD74CBT3257
4-bit 1-of-2 FET Multiplexer / Demultiplexer
ADE-205-624B (Z)
Rev. 2
Nov. 2001
Description
The HD74CBT3257 is a 4-bit 1-of-2 high-speed TTL-compatible FET multiplexer / demultiplexer. The
low on-state resistance of the switch allows connections to be made with minimal propagation delay.
Output enable (OE) and select control (S) inputs select the appropriate B1 and B2 outputs for the A-input
data.
Features
• Minimal propagation delay through the switch.
• 5 Ω switch connection between two ports.
• TTL-compatible input levels.
• Ultra low quiescent power.
-Ideally suited for notebook applications.
• Package type
Product code example: HD74CBT3257TELL
Package type
Package code
Package suffix
Taping code
TSSOP-16pin
TTP-16DA
T
ELL(2000pcs / Reel)
Notes: 1. As for the Pb-free package is attached the “V” to the end of package code.
2. As for the Pb-free product is attached the “–E” to the end of product code.
1 page  
HD74CBT3257
DC Electrical Characteristics
(Ta = −40 to 85°C)
Item
Clamp diode voltage
Input voltage
On-state switch
resistance *2
Symbol
VIK
VIH
V
IL
R
ON
VCC (V)
4.5
4.0 to 5.5
4.0 to 5.5
4.0
Min
2.0
4.5
4.5
4.5
Input current
Off-state leakage
current
I
IN
I
OZ
0 to 5.5
5.5
Typ *1
14
Max
−1.2
0.8
20
57
57
10 15
±1.0
±1.0
Unit
V
V
Test conditions
IIN = −18 mA
Ω
V = 2.4 V,
IN
IIN = 15 mA
Typ at VCC = 4.0 V
V = 0 V,
IN
IIN = 64 mA
VIN = 0 V,
I = 30 mA
IN
VIN = 2.4 V,
IIN = 15 mA
µA
V = 5.5 V or GND
IN
µA
0
≤
A,
B
≤
V
CC
Quiescent supply
current
Increase in ICC
per input *3
ICC
∆ICC
5.5
5.5
3
µA VIN = VCC or GND,
IO = 0 mA
2.5 mA One input at 3.4 V,
other inputs at VCC or
GND
Notes:
For condition shown as Min or Max use the appropriate values under recommended operating
conditions.
1. All typical values are at V = 5 V (unless otherwise noted), Ta = 25°C.
CC
2. Measured by the voltage drop between the A and B terminals at the indicated current through the
switch. On-state resistance is determined by the lower voltage of the two (A or B) terminals.
3. This is the increase in supply current for each input that is at the specified TTL voltage level
rather than VCC or GND.
Capacitance
(Ta = 25°C)
Item
Control input
capacitance
Symbol V (V) Min Typ Max Unit
CC
C
IN
5.0
3.5 pF
Test conditions
V = 0 or 3 V
IN
Input / output
A port CI/O (OFF)
5.0
9
pF
VO = 0 or 3 V
capacitance
B port
5.0 5
OE = VCC
Note: This parameter is determined by device characterization is not production tested.
Rev.2, Nov. 2001, page 5 of 11
5 Page 
HD74CBT3257
Disclaimer
1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent,
copyright, trademark, or other intellectual property rights for information contained in this document.
Hitachi bears no responsibility for problems that may arise with third party’s rights, including
intellectual property rights, in connection with use of the information contained in this document.
2. Products and product specifications may be subject to change without notice. Confirm that you have
received the latest product standards or specifications before final design, purchase or use.
3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However,
contact Hitachi’s sales office before using the product in an application that demands especially high
quality and reliability or where its failure or malfunction may directly threaten human life or cause risk
of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation,
traffic, safety equipment or medical equipment for life support.
4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly
for maximum rating, operating supply voltage range, heat radiation characteristics, installation
conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used
beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable
failure rates or failure modes in semiconductor devices and employ systemic measures such as fail-
safes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other
consequential damage due to operation of the Hitachi product.
5. This product is not designed to be radiation resistant.
6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without
written approval from Hitachi.
7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor
products.
Sales Offices
Hitachi, Ltd.
Semiconductor & Integrated Circuits
Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan
Tel: (03) 3270-2111 Fax: (03) 3270-5109
URL
http://www.hitachisemiconductor.com/
For further information write to:
Hitachi Semiconductor Hitachi Europe Ltd.
Hitachi Asia Ltd.
Hitachi Asia (Hong Kong) Ltd.
(America) Inc.
Electronic Components Group
Hitachi Tower
Group III (Electronic Components)
179 East Tasman Drive Whitebrook Park
16 Collyer Quay #20-00
7/F., North Tower
San Jose,CA 95134
Lower Cookham Road
Singapore 049318
World Finance Centre,
Tel: <1> (408) 433-1990 Maidenhead
Tel : <65>-538-6533/538-8577
Harbour City, Canton Road
Fax: <1>(408) 433-0223 Berkshire SL6 8YA, United Kingdom Fax : <65>-538-6933/538-3877
Tsim Sha Tsui, Kowloon Hong Kong
Tel: <44> (1628) 585000
URL : http://semiconductor.hitachi.com.sg Tel : <852>-(2)-735-9218
Fax: <44> (1628) 585200
Fax : <852>-(2)-730-0281
Hitachi Europe GmbH
Electronic Components Group
Dornacher Straße 3
D-85622 Feldkirchen
Postfach 201, D-85619 Feldkirchen
Germany
Tel: <49> (89) 9 9180-0
Fax: <49> (89) 9 29 30 00
Hitachi Asia Ltd.
(Taipei Branch Office)
4/F, No. 167, Tun Hwa North Road
Hung-Kuo Building
Taipei (105), Taiwan
Tel : <886>-(2)-2718-3666
Fax : <886>-(2)-2718-8180
Telex : 23222 HAS-TP
URL : http://www.hitachi.com.tw
URL : http://semiconductor.hitachi.com.hk
Copyright © Hitachi, Ltd., 2001. All rights reserved. Printed in Japan.
Colophon 5.0
Rev.2, Nov. 2001, page 11 of 11
11 Page | ||
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| PDF Descargar | [ Datasheet HD74CBT3257.PDF ] | |
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