參數(shù)資料
型號: SN74LVC32244ZKER
廠商: TEXAS INSTRUMENTS INC
元件分類: 總線收發(fā)器
英文描述: LVC/LCX/Z SERIES, OCTAL 4-BIT DRIVER, TRUE OUTPUT, PBGA96
封裝: GREEN, PLASTIC, LFBGA-96
文件頁數(shù): 1/12頁
文件大?。?/td> 417K
代理商: SN74LVC32244ZKER
www.ti.com
FEATURES
DESCRIPTION/ORDERING INFORMATION
SN74LVC32244
32-BIT BUFFER/DRIVER
WITH 3-STATE OUTPUTS
SCES342C – OCTOBER 2000 – REVISED APRIL 2005
Typical VOHV (Output VOH Undershoot)
> 2 V at VCC = 3.3 V, TA = 25°C
Member of the Texas Instruments Widebus+
Family
Ioff Supports Partial-Power-Down Mode
Operation
Operates From 1.65 V to 3.6 V
Supports Mixed-Mode Signal Operation on
Inputs Accept Voltages to 5.5 V
All Ports (5-V Input/Output Voltage With
Max tpd of 4.1 ns at 3.3 V
3.3-V VCC)
Typical VOLP (Output Ground Bounce)
< 0.8 V at VCC = 3.3 V, TA = 25°C
This 32-bit buffer/driver is designed for 1.65-V to 3.6-V VCC operation.
The SN74LVC32244 is designed specifically to improve the performance and density of 3-state memory address
drivers, clock drivers, and bus-oriented receivers and transmitters.
The device can be used as eight 4-bit buffers, four 8-bit buffers, two 16-bit buffers, or one 32-bit buffer. It
provides true outputs and symmetrical active-low output-enable (OE) inputs.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators
in a mixed 3.3-V/5-V system environment.
This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs,
preventing damaging current backflow through the device when it is powered down.
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
LFBGA – GKE
SN74LVC32244GKER
–40°C to 85°C
Tape and reel
NC244
LFBGA – ZKE (Pb-free)
SN74LVC32244ZKER
(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.
Widebus+ is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright 2000–2005, 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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