1. General description

The 74ALVT16373 is a 16-bit D-type transparent latch with 3-state outputs. The device can be

used as two 8-bit transparent latches or a single 16-bit transparent latch. The device features

two latch enables (1LE and 2LE) and two output enables (1OE and 2OE), each controlling

8-bits. When nLE is HIGH, data at the inputs enter the latches. In this condition the latches are

transparent, a latch output will change each time its corresponding D-input changes. When nLE is

LOW the latches store the information that was present at the inputs a set-up time preceding the

HIGH-to-LOW transition of nLE. A HIGH on nOE causes the outputs to assume a high-impedance

OFF-state. Operation of the nOE input does not affect the state of the latches. Bus hold data inputs

eliminate the need for external pull-up resistors to define unused inputs

2. Features and benefits

• Wide supply voltage range from 2.3 to 3.6 V

• Overvoltage tolerant inputs to 5.5 V

• BiCMOS high speed and output drive

• 16-bit transparent latch

• 5 V I/O compatible

• 3-state buffers

• Output capability: +64 mA/–32 mA

• Direct interface with TTL levels

• Input and output interface capability to systems at 5 V supply

• Bus-hold data inputs eliminate the need for external pull-up resistors to hold unused inputs

• Live insertion/extraction permitted

• Power-up reset

• Power-up 3-State

• No bus current loading when output is tied to 5 V bus

• IOFF circuitry provides partial Power-down mode operation

• Latch-up performance exceeds 500 mA per JESD 78 Class II Level B

• ESD protection:

• MIL STD 883 method 3015: exceeds 2000 V

• MM exceeds 200 V

• Specified from -40 °C to 85 °C