SN74LVCH32244A

·Member of the Texas Instruments WidebusE Family
·EPICE (Enhanced-Performance Implanted CMOS) Submicron Process
·Typical VOLP (Output Ground Bounce)
  < 0.8 V at V_CC = 3.3 V, T_A = 25°C
·Typical VOHV (Output VOH Undershoot)
  > 2 V at V_CC = 3.3 V, T_A = 25°C
·Ioff Supports Partial-Power-Down-Mode Operation
·Supports Mixed-Mode Signal Operation on All Ports (5-V Input/Output Voltage With 3.3-V V_CC)
·Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
·ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
·Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
·Packaged in Plastic Fine-Pitch Ball Grid Array Package

Supply voltage range, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 6.5 V
Input voltage range, V_I (see Note 1) . . . . . . . . . . . . . . . . . . . . ..  .. 0.5 V to 6.5 V
Voltage range applied to any output in the high-impedance or power-off state, V_O
(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 6.5 V
Voltage range applied to any output in the high or low state, V_O
(see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  0.5 V to V_CC + 0.5 V
Input clamp current, I_IK (V_I < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 50 mA
Output clamp current, I_OK (V_O < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  50 mA
Continuous output current, I_O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA
Continuous current through each V_CC or GND . . . . . . . . . . . . . . . . . . . . . . ±100 mA
Package thermal impedance, _JA (see Note 3) . . . . . . . . . . . . . . . . . . . . . .. 40°C/W
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C
† Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. The input negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. The value of V_CC is provided in the recommended operating conditions table.
3. The package thermal impedance is calculated in accordance with JESD 51.

This 32-bit buffer/driver SN74LVCH32244A is designed for 1.65-V to 3.6-V V_CC operation.

The SN74LVCH32244A 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 SN74LVCH32244A 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.

SN74LVCH32244A 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 SN74LVCH32244A 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, SN74LVCH32244A 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.

Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.

The SN74LVCH32244A is characterized for operation from 40°C to 85°C.