1FEATURES
• Qualified for Automotive Applications
• Supports 5-V VCC Operation
• Inputs Accept Voltages to 5.5 V
• Max t pd of 4 ns at 3.3 V
• Low Power Consumption, 10-μA Max ICC
• ±24-mA Output Drive at 3.3 V
• Ioff Supports Partial-Power-Down Mode
Operation
• Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
• 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
This single D-type flip-flop is designed for 1.65-V to
5.5-V VCC operation.
The SN74LVC1G374 features a 3-state output
designed specifically for driving highly capacitive or
relatively low-impedance loads. This device is
particularly suitable for implementing buffer registers,
input/output (I/O) ports, bidirectional bus drivers, and
working registers.
On the positive transition of the clock (CLK) input, the
Q output is set to the logic level set up at the data (D)
input.
A buffered output-enable (OE) input can be used to
place the output in either a normal logic state (high or
low logic levels) or the high-impedance state. In the
high-impedance state, the output neither loads nor
drives the bus lines significantly. The high-impedance
state and increased drive provide the capability to
drive bus lines without interface or pullup
components.
OE does not affect the internal operations of the flip-
flop. Old data can be retained or new data can be
entered while the outputs are in the high-impedance
state.
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.
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.
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.