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SN74CBT3383C Datasheet Preview

SN74CBT3383C Datasheet

10-BIT FET BUS-EXCHANGE SWITCH

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SN74CBT3383C
10ĆBIT FET BUSĆEXCHANGE SWITCH
5ĆV BUS SWITCH WITH -2ĆV UNDERSHOOT PROTECTION
SCDS175 − SEPTEMBER 2004
D Undershoot Protection for Off-Isolation on
A and B Ports Up to −2 V
D Bidirectional Data Flow, With Near-Zero
Propagation Delay
D Low ON-State Resistance (ron)
Characteristics (ron = 3 Typical)
D Low Input/Output Capacitance Minimizes
Loading and Signal Distortion
(Cio(OFF) = 8 pF Typical)
D Data and Control Inputs Provide
Undershoot Clamp Diodes
D Low Power Consumption
(ICC = 3 µA Max)
D VCC Operating Range From 4 V to 5.5 V
D Data I/Os Support 0 to 5-V Signaling Levels
(0.8-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V, 3.3-V, 5-V)
D Control Inputs Can be Driven by TTL or
5-V/3.3-V CMOS Outputs
D Ioff Supports Partial-Power-Down Mode
Operation
D Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
D ESD Performance Tested Per JESD 22
− 2000-V Human-Body Model
(A114-B, Class II)
− 1000-V Charged-Device Model (C101)
D Supports Both Digital and Analog
Applications: PCI Interface, Memory
Interleaving, Bus Isolation, Low-Distortion
Signal Gating
DB, DBQ, DGV, DW, OR PW PACKAGE
(TOP VIEW)
BE 1
1B1 2
1A1 3
1A2 4
1B2 5
2B1 6
2A1 7
2A2 8
2B2 9
3B1 10
3A1 11
GND 12
24 VCC
23 5B2
22 5A2
21 5A1
20 5B1
19 4B2
18 4A2
17 4A1
16 4B1
15 3B2
14 3A2
13 BX
description/ordering information
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SOIC − DW
Tube
Tape and reel
SN74CBT3383CDW
SN74CBT3383CDWR
CBT3383C
SSOP − DB
Tape and reel SN74CBT3383CDBR CU383C
−40°C to 85°C SSOP (QSOP) − DBQ Tape and reel SN74CBT3383CDBQR CBT3383C
TSSOP − PW
Tube
Tape and reel
SN74CBT3833CPW
SN74CBT3833CPWR
CU383C
TVSOP − DGV
Tape and reel SN74CBT3833CDGVR CU383C
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.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright 2004, Texas Instruments Incorporated
1




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SN74CBT3383C Datasheet Preview

SN74CBT3383C Datasheet

10-BIT FET BUS-EXCHANGE SWITCH

No Preview Available !

SN74CBT3383C
10ĆBIT FET BUSĆEXCHANGE SWITCH
5ĆV BUS SWITCH WITH -2ĆV UNDERSHOOT PROTECTION
SCDS175 − SEPTEMBER 2004
description/ordering information (continued)
The SN74CBT3383C is a high-speed TTL-compatible FET bus-exchange switch with low ON-state resistance
(ron), allowing for minimal propagation delay. Active Undershoot-Protection Circuitry on the A and B ports of the
SN74CBT3383C provides protection for undershoot up to −2 V by sensing an undershoot event and ensuring
that the switch remains in the proper OFF state.
The SN74CBT3383C is organized as a 10-bit bus switch, or as a 5-bit bus-exchange switch with a single
output-enable (BE) input that provides data exchanging between four signal ports. The select (BX) input controls
the data path of the bus-exchange switch. When BE is low, the A port is connected to the B port, allowing
bidirectional data flow between ports. When BE is high, a high-impedance state exists between the A and B
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, BE 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.
INPUTS
BE BX
L
L
L
H
H
X
FUNCTION TABLE
(each 5-bit bus-exchange)
INPUTS/OUTPUTS
1A1−5A1 1A2−5A2
FUNCTION
1B1−5B1
1B2−5B2
A1 port = B1 port,
A2 port = B2 port
1B2−5B2
1B1−5B1
A1 port = B2 port,
A2 port = B1 port
Z
Z
Disconnect
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265


Part Number SN74CBT3383C
Description 10-BIT FET BUS-EXCHANGE SWITCH
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