1. General description
The 74LVC1G99 provides a low voltage, ultra-configurable, multiple function gate with 3-state
output. The device can be configured as one of several logic functions including, AND, OR,
NAND, NOR, XOR, XNOR, inverter, buffer and MUX. No external components are required to
configure the device as all inputs can be connected directly to VCC or GND. The 3-state output is
controlled by the output enable input (OE). A HIGH level at OE causes the output (Y) to assume a
high-impedance OFF-state. When OE is LOW, the output state is determined by the signals applied
to the Schmitt trigger inputs (A, B, C and D).
Due to the use of Schmitt trigger inputs the device is tolerant of slowly changing input signals,
transforming them into sharply defined, jitter free output signals. By eliminating leakage current
paths to VCC and GND, the inputs and disabled output are also over-voltage tolerant, making the
device suitable for mixed-voltage applications.
This device is fully specified for partial power-down applications using IOFF. The IOFF circuitry
disables the output, preventing the damaging backflow current through the device when it is
powered down.
The 74LVC1G99 is fully specified over the supply range from 1.65 V to 5.5 V.
2. Features and benefits
• Wide supply voltage range from 1.65 V to 5.5 V
• 5 V tolerant inputs for interfacing with 5 V logic
• High noise immunity
• Complies with JEDEC standard:
• JESD8-7 (1.65 V to 1.95 V)
• JESD8-5 (2.3 V to 2.7 V)
• JESD8-B/JESD36 (2.7 V to 3.6 V)
• ESD protection:
• HBM JESD22-A114F exceeds 2000 V
• MM JESD22-A115-A exceeds 200 V
• ±24 mA output drive (VCC = 3.0 V)
• CMOS low power consumption
• Latch-up performance exceeds 250 mA
• Direct interface with TTL levels
• Inputs accept voltages up to 5 V
• Multiple package options
• Specified from -40 °C to +85 °C and -40 °C to +125 °C.