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SN74CBTLV3245ADGVR データシート(PDF) 1 Page - Texas Instruments

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部品番号 SN74CBTLV3245ADGVR
部品情報  LOW-VOLTAGE OCTAL FET BUS SWITCH
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI - Texas Instruments

SN74CBTLV3245ADGVR データシート(HTML) 1 Page - Texas Instruments

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SN74CBTLV3245A
LOW VOLTAGE OCTAL FET BUS SWITCH
SCDS034L − JULY 1997 − REVISED OCTOBER 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Standard ’245-Type Pinout
D 5-Ω Switch Connection Between Two Ports
D Rail-to-Rail Switching on Data I/O Ports
D Ioff Supports Partial-Power-Down Mode
Operation
D Latch-Up Performance Exceeds 250 mA Per
JESD 17
D ESD Protection Exceeds JESD 22
− 2000-V Human-Body Model (A114-A)
− 200-V Machine Model (A115-A)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
NC
A1
A2
A3
A4
A5
A6
A7
A8
GND
VCC
OE
B1
B2
B3
B4
B5
B6
B7
B8
DBQ, DGV, DW, OR PW PACKAGE
(TOP VIEW)
NC − No internal connection
RGY PACKAGE
(TOP VIEW)
120
10
11
2
3
4
5
6
7
8
9
19
18
17
16
15
14
13
12
OE
B1
B2
B3
B4
B5
B6
B7
A1
A2
A3
A4
A5
A6
A7
A8
NC − No internal connection
description/ordering information
The SN74CBTLV3245A provides eight bits of high-speed bus switching in a standard ’245 device pinout. The
low on-state resistance of the switch allows connections to be made with minimal propagation delay.
The device is organized as one 8-bit switch. When output enable (OE) is low, the 8-bit bus switch is on,
and port A is connected to port B. When OE is high, the switch is open, and the high-impedance state exists
between the two ports.
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†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
QFN − RGY
Tape and reel
SN74CBTLV3245ARGYR
CL245A
SOIC − DW
Tube
SN74CBTLV3245ADW
CBTLV3245A
−40
°C to 85°C
SOIC − DW
Tape and reel
SN74CBTLV3245ADWR
CBTLV3245A
−40
°C to 85°C
SSOP (QSOP) − DBQ
Tape and reel
SN74CBTLV3245ADBQR
CBTLV3245A
TSSOP − PW
Tape and reel
SN74CBTLV3245APWR
CL245A
TVSOP − DGV
Tape and reel
SN74CBTLV3245ADGVR
CL245A
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Copyright
 2003, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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.


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