NXP Semiconductors 74LVCH16373ADGG:11

Overview

74LVCH16373ADGG:11 from NXP Semiconductors is a 16-bit transparent D-type latch with 3-state outputs, designed for bus interface and data buffering in 3.3 V digital systems. It features 5.5 V tolerant inputs, ±24 mA output drive, and operates from 1.65 V to 3.6 V supply. Used in industrial control backplanes and memory address latching.

For engineers reviewing the 74LVCH16373ADGG:11 datasheet, 74LVCH16373ADGG:11 pinout, 74LVCH16373ADGG:11 application, or 74LVCH16373ADGG:11 equivalent, key selection criteria include input voltage tolerance, output drive strength, propagation delay consistency across channels, and 3-state timing behavior under varying load conditions.

Technical Context

This latch uses CMOS technology with TTL-compatible input thresholds and supports hot insertion due to its 5.5 V tolerant inputs. All inputs and outputs are protected by ESD diodes rated to ±2 kV HBM.

The device implements dual 8-bit latch sections (A/B), each controlled by independent OE and G pins. Output enable timing is asymmetric: t_pd(OE→Q) = 4.2 ns typical at V_CC = 3.3 V, while t_pd(G→Q) = 3.8 ns, enabling precise bus arbitration sequencing.

Key Specifications

Pinout & Package

Supplied in a 48-pin TSSOP (Thin Shrink Small Outline Package) with 0.5 mm pitch, JEDEC MO-153 compliant, body size 12.5 × 6.1 mm, 1.2 mm height. Thermal resistance θ_JA = 120 °C/W.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit transparent latch applications.

Compared with SN74LVC16373ADGGR, 74LVCH16373ADGG:11 offers superior ESD robustness and identical 5.5 V tolerance; versus 74ALVCH16373PAG, it trades speed for broader supply and interface flexibility-critical for mixed-voltage industrial designs.

Availability

74LVCH16373ADGG:11 is available at Aetrix Electronics and suitable for industrial backplane interfaces, memory address latching, and programmable logic I/O expansion requiring stable component supply and long-term lifecycle support.

Supply support for 74LVCH16373ADGG:11 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.

This device belongs to the 74LVC family of advanced low-voltage CMOS logic ICs, engineered for interoperability across mixed-supply systems and robust operation in electrically noisy industrial environments.

FAQ

What is the maximum clock frequency supported by 74LVCH16373ADGG:11?

The 74LVCH16373ADGG:11 is not a clocked register but a transparent latch. Its usable data rate depends on propagation delay and setup/hold timing. With t_pd ≤ 4.2 ns and t_su/t_h ≤ 1.5 ns, it reliably supports bus toggle rates up to 100 MHz in properly terminated 3.3 V systems, assuming clean enable edge timing and controlled trace impedance.

Can 74LVCH16373ADGG:11 be used with a 2.5 V supply?

Yes. The device is fully specified from 1.65 V to 3.6 V, including 2.5 V operation. At V_CC = 2.5 V, output drive drops to ±16 mA, propagation delay increases to 5.8 ns max, and input thresholds remain TTL-compatible. All DC and AC parameters are guaranteed across this range per NXP's datasheet Rev. 9.

Does 74LVCH16373ADGG:11 support hot-swap operation?

Yes. Its 5.5 V tolerant inputs, powered-off protection (I_OFF ≤ 10 µA at V_CC = 0 V), and bus-hold circuitry allow safe insertion into live backplanes. No external current-limiting resistors are required, though proper sequencing of V_CC and signal ramp rates per IEC 61000-4-5 is recommended for full compliance.

How does the dual OE/G control scheme improve system timing?

The separate Output Enable (OE/OEB) and Latch Enable (G/GB) pins decouple bus visibility from data capture. This allows latching new data while keeping previous outputs active, then releasing the bus only after valid data is ready-eliminating bus contention windows in multi-master systems and simplifying handshake protocol design.