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74CBTLV3245APWRG4 Scheda tecnica(PDF) 1 Page - Texas Instruments

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Il numero della parte 74CBTLV3245APWRG4
Spiegazioni elettronici  LOW-VOLTAGE OCTAL FET BUS SWITCH
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Produttore elettronici  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

74CBTLV3245APWRG4 Scheda tecnica(HTML) 1 Page - Texas Instruments

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FEATURES
1
2
3
4
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8
9
10
20
19
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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)
1
20
10
11
2
3
4
5
6
7
8
9
19
18
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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
SN74CBTLV3245A
LOW-VOLTAGE OCTAL FET BUS SWITCH
SCDS034M – JULY 1997 – REVISED AUGUST 2005
Standard '245-Type Pinout
Latch-Up Performance Exceeds 250 mA Per
JESD 17
5-
Ω Switch Connection Between Two Ports
ESD Protection Exceeds JESD 22
Rail-to-Rail Switching on Data I/O Ports
– 2000-V Human-Body Model (A114-A)
I
off Supports Partial-Power-Down Mode
Operation
– 200-V Machine Model (A115-A)
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(1)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
QFN – RGY
Tape and reel
SN74CBTLV3245ARGYR
CL245A
Tube
SN74CBTLV3245ADW
SOIC – DW
CBTLV3245A
Tape and reel
SN74CBTLV3245ADWR
SSOP (QSOP) – DBQ
Tape and reel
SN74CBTLV3245ADBQR
CBTLV3245A
–40
°C to 85°C
TSSOP – PW
Tape and reel
SN74CBTLV3245APWR
CL245A
TVSOP – DGV
Tape and reel
SN74CBTLV3245ADGVR
CL245A
VFBGA – GQN
Tape and reel
SN74CBTLV3245AGQNR
CL245A
VFBGA – ZQN
Tape and reel
SN74CBTLV3245AZQNR
CL245A
(1)
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
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 © 1997–2005, 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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