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SN74CBTLV3257PWR 数据表(PDF) 1 Page - Texas Instruments

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部件名 SN74CBTLV3257PWR
功能描述  Low-Voltage 4-Bit 1-of-2 FET Multiplexer/Demultiplexer
Download  23 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

SN74CBTLV3257PWR 数据表(HTML) 1 Page - Texas Instruments

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1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
S
1B1
1B2
1A
2B1
2B2
2A
GND
VCC
OE
4B1
4B2
4A
3B1
3B2
3A
1A
1B2
1B1
SEL
3A
3B2
2B1
2A
3
2
1
4
VCC
5
OEB
6
16
7
15
9
10
1 1
12
13
8
14
2B2
GND
1
16
8
9
2
3
4
5
6
7
15
14
13
12
11
10
OE
4B1
4B2
4A
3B1
3B2
1B1
1B2
1A
2B1
2B2
2A
SN74CBTLV3257
www.ti.com
SCDS040J – DECEMBER 1997 – REVISED JANUARY 2013
Low-Voltage 4-Bit 1-of-2 FET Multiplexer/Demultiplexer
Check for Samples: SN74CBTLV3257
1
FEATURES
RGY PACKAGE
5-
Ω Switch Connection Between Two Ports
(TOP VIEW)
Rail-to-Rail Switching on Data I/O Ports
Ioff Supports Partial-Power-Down Mode
Operation
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
ESD Protection Exceeds JESD 22
2000-V Human-Body Model (A114-A)
200-V Machine Model (A115-A)
D, DBQ, DGV, OR PW PACKAGE
RSV PACKAGE
(TOP VIEW)
(TOP VIEW)
DESCRIPTION
The SN74CBTLV3257 is a 4-bit 1-of-2 high-speed FET multiplexer/demultiplexer. The low on-state resistance of
the switch allows connections to be made with minimal propagation delay.
The select (S) input controls the data flow. The FET multiplexers/demultiplexers are disabled when the output-
enable (OE) input is high.
This device is fully specified for partial-power-down applications using Ioff. The Ioff feature ensures that damaging
current will not backflow through the device when it is powered down. The device has isolation during power off.
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
ORDERING INFORMATION
TA
PACKAGE(1) (2)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
QFN – RSV
Reel of 3000
SN74CBTLV3257RSVR
ZTR
QFN – RGY
Reel of 3000
SN74CBTLV3257RGYR
CL257
Tube of 40
SN74CBTLV3257D
SOIC – D
CBTLV3257
–40°C to 85°C
Reel of 2500
SN74CBTLV3257DR
SSOP (QSOP) – DBQ
Reel of 2500
SN74CBTLV3257DBQR
CL257
TSSOP – PW
Reel of 2000
SN74CBTLV3257PWR
CL257
TVSOP – DGV
Reel of 2000
SN74CBTLV3257DGVR
CL257
(1)
Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
(2)
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 1997–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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