SN74LVCZ32240A Datasheet, PDF (1/9 Pages) Texas Instruments – 32-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS

www.ti.com
FEATURES
• Member of the Texas Instruments Widebus+™
Family
• Operates From 2.7 V to 3.6 V
• Inputs Accept Voltages to 5.5 V
• Max t_pd of 4.2 ns at 3.3 V
• I_off and Power-Up 3-State Support Hot
Insertion
SN74LVCZ32240A
32-BIT BUFFER/DRIVER
WITH 3-STATE OUTPUTS
SCES421A – JANUARY 2003 – REVISED JULY 2005
• Supports Mixed-Mode Signal Operation on All
Ports (5-V Input/Output Voltage With
3.3-V V_CC)
• Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
• ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 1000-V Charged-Device Model (C101)
DESCRIPTION/ORDERING INFORMATION
This 32-bit buffer/driver is designed for 2.7-V to 3.6-V V_CC operation.
The SN74LVCZ32240A is designed specifically to improve both 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. This
device provides inverting outputs.
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.
During power up or power down, when V_CC is between 0 and 1.5 V, the device is in the high-impedance state.
However, to ensure the high-impedance state above 1.5 V, OE should be tied to V_CC 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 hot-insertion applications using I_off and power-up 3-state. The I_off circuitry
disables the outputs, preventing damaging current backflow through the device when it is powered down
(V_CC = 0 V). The power-up 3-state circuitry places the outputs in the high-impedance state during power up and
power down, which prevents driver conflict.
ORDERING INFORMATION
T_A
–40°C to 85°C
PACKAGE ⁽¹⁾
LFBGA – GKE
Tape and reel
ORDERABLE PART NUMBER
SN74LVCZ32240AGKER
TOP-SIDE MARKING
ZC240A
(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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2003–2005, Texas Instruments Incorporated