FEATURES
· Member of the Texas Instruments Widebus™
Family
· Operates From 1.65 V to 3.6 V
· Max tpd of 4 ns at 3.3 V
· ±12-mA Output Drive at 3.3 V
· Output Port Has Equivalent 26-W Series
Resistors, So No External Resistors Are
Required
· Designed to Comply With JEDEC 168-Pin and
200-Pin SDRAM Buffered DIMM Specification
· Latch-Up Performance Exceeds 250 mA Per
JESD 17
· ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)

DESCRIPTION/ORDERING INFORMATION
This 20-bit universal bus driver is designed for 1.65-V
to 3.6-V VCC operation.
Data flow from A to Y is controlled by the
output-enable (OE) input. The device operates in the
transparent mode when the latch-enable (LE) input is
low. When LE is high, the A data is latched if the
clock (CLK) input is held at a high or low logic level. If
LE is high, the A data is stored in the latch/flip-flop on
the low-to-high transition of CLK. When OE is high,
the outputs are in the high-impedance state.
The output port includes equivalent 26-W series
resistors to reduce overshoot and undershoot.
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.