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74AVCB324245ZKER Datasheet

  • 74AVCB324245ZKER

  • 32 BIT DUAL SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE...

  • 13頁

  • TI

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SN74AVCB324245
32 BIT DUAL SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3 STATE OUTPUTS
SCES485A 鈭?AUGUST 2003 鈭?REVISED JUNE 2004
D
Member of the Texas Instruments
D
D
Widebus+錚?Family
DOC錚?Circuitry Dynamically Changes
Output Impedance, Resulting in Noise
Reduction Without Speed Degradation
Dynamic Drive Capability Is Equivalent to
Standard Outputs With I
OH
and I
OL
of
鈭?/div>
鹵24
mA at 3-V V
CC
鈭?/div>
鹵15
mA at 2.3-V V
CC
鈭?/div>
鹵9
mA at 1.65-V V
CC
鈭?/div>
鹵6
mA at 1.4-V V
CC
Control Inputs V
IH
/V
IL
Levels are
Referenced to V
CCB
Voltage
If Either V
CC
Input Is at GND, Both Ports
Are in the High-Impedance State
D
Inputs/Outputs Can Tolerate Up to 4.6 V,
D
D
D
D
Which Allows Mixed-Voltage-Mode Data
Communications
I
off
Supports Partial-Power-Down Mode
Operation
Fully Configurable Dual-Rail Design Allows
Each Port to Operate Over the Full 1.4-V to
3.6-V Power-Supply Range
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
ESD Protection Exceeds JESD 22
鈭?2000-V Human-Body Model (A114-A)
鈭?200-V Machine Model (A115-A)
鈭?1000-V Charged-Device Model (C101)
D
D
description/ordering information
This 32-bit noninverting bus transceiver uses two separate configurable power-supply rails. The A port is
designed to track V
CCA
. V
CCA
accepts any supply voltage from 1.4 V to 3.6 V. The B port is designed to track
V
CCB
. V
CCB
accepts any supply voltage from 1.4 V to 3.6 V. This allows for universal low-voltage bidirectional
translation between any of the 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes.
The SN74AVCB324245 is designed for asynchronous communication between data buses. The device
transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the
direction-control (DIR) input. The output-enable (OE) input can be used to disable the outputs so the buses are
effectively isolated.
The SN74AVCB324245 is designed so that the control pins (1DIR, 2DIR, 1OE, and 2OE) are supplied by V
CCB
.
To ensure the high-impedance state during power up or power down, OE shall be tied to V
CCB
through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
This device is fully specified for partial-power-down applications using I
off
. The I
off
circuitry disables the outputs,
preventing damaging current backflow through the device when it is powered down. If either V
CC
input is at GND,
both ports are in the high-impedance state.
ORDERING INFORMATION
TA
鈭?0擄C to 85擄C
PACKAGE鈥?/div>
LFBGA 鈭?GKE
LFBGA 鈭?ZKE (Pb-free)
Tape and reel
ORDERABLE
PART NUMBER
SN74AVCB324245KR
74AVCB324245ZKER
TOP-SIDE
MARKING
WD4245
鈥?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.
DOC and Widebus+ are trademarks of Texas Instruments.
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.
Copyright
錚?/div>
2004, Texas Instruments Incorporated
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
1

74AVCB324245ZKER 產(chǎn)品屬性

  • 1,000

  • 集成電路 (IC)

  • 邏輯 - 變換器

  • 74AVCB

  • 變換器，雙向，3 態(tài)

  • 32

  • 邏輯

  • 邏輯

  • -

  • 4

  • 8

  • 無/無

  • 3.1ns

  • 1.4 V ~ 3.6 V

  • -40°C ~ 85°C

  • 96-LFBGA

  • 96-PBGA MICROSTAR（13.6x5.6）

  • 帶卷 (TR)

  • 296-17788-2

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