NXP Semiconductors 74LVCH32374AEC,551

Overview

74LVCH32374AEC,551 from NXP Semiconductors is a 32-bit edge-triggered D-type flip-flop with four independent 8-bit sections, 3-state outputs, 5 V tolerant I/O, and bus hold on all data inputs. It operates from 1.2 V to 3.6 V supply, supports −40 °C to +125 °C ambient, and enables bidirectional bus interfacing in mixed-voltage systems.

For engineers reviewing the 74LVCH32374AEC,551 datasheet, 74LVCH32374AEC,551 pinout, 74LVCH32374AEC,551 application, or 74LVCH32374AEC,551 equivalent, this device serves as a high-density, low-power latch for data buffering, level translation, and bus isolation in industrial control backplanes, FPGA I/O expansion, and memory interface subsystems.

Technical Context

The 74LVCH32374AEC,551 implements four independent 8-bit D-type flip-flop sections, each with dedicated clock (nCP) and output enable (nOE) inputs. Each section latches data on the LOW-to-HIGH transition of its nCP signal, meeting set-up (1.9 ns min at 3.0–3.6 V) and hold (−0.3 ns min at 3.0–3.6 V) timing requirements.

Its 5 V tolerant inputs/outputs allow direct interfacing with both 3.3 V and 5 V logic families. Bus hold circuitry eliminates external pull-ups on unused data inputs, and 3-state outputs support shared bus architectures without contention. The device maintains high-impedance output state when VCC = 0 V.

Key Specifications

Pinout & Package

Package: LFBGA96 (SOT536-1), plastic low-profile fine-pitch ball grid array, 13.5 mm × 5.5 mm × 1.05 mm body, 96 solder balls.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit latch applications.

Compared with SN74LVC32374ARGYR, the 74LVCH32374AEC,551 reduces component count via integrated bus hold; compared with 74ALVCH32374AEC,551, it trades 10–15% speed for lower static current and broader voltage flexibility.

Availability

74LVCH32374AEC,551 is available at Aetrix Electronics and suitable for industrial backplane interfaces, FPGA I/O expansion, and memory interface buffering requiring stable component supply across extended temperature ranges and mixed-voltage environments.

Supply support for 74LVCH32374AEC,551 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 leader focused on secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in logic, interface, and power management ICs.

The 74LVCH32374AEC,551 belongs to NXP's LVCH family of advanced low-voltage CMOS logic devices, designed specifically for high-density, low-power, mixed-voltage digital interfacing in space-constrained industrial and communications equipment.

FAQ

What is the maximum clock frequency supported by the 74LVCH32374AEC,551?

The 74LVCH32374AEC,551 supports up to 150 MHz maximum clock frequency at VCC = 3.0–3.6 V over the full −40 °C to +125 °C operating range. At 2.7 V, fmax is 120 MHz. These values are guaranteed by design and verified per JEDEC test conditions in the official NXP datasheet Rev. 3.

Does the 74LVCH32374AEC,551 require external pull-up resistors on its data inputs?

No, the 74LVCH32374AEC,551 does not require external pull-up resistors because all 32 data inputs (1D[0:7]–4D[0:7]) include integrated bus hold circuitry. This feature actively maintains valid logic states on floating inputs, eliminating the need for 32 discrete resistors and reducing PCB area and BOM cost.

Can the 74LVCH32374AEC,551 be used with a 1.2 V supply and still interface with 5 V logic?

Yes, the 74LVCH32374AEC,551 operates down to 1.2 V VCC while maintaining full 5.5 V tolerance on all inputs and outputs. This allows safe interfacing with 5 V logic families without level shifters - critical for power-sensitive applications where core voltage scaling is required.

What is the purpose of the multiple VCC and GND pins on the 74LVCH32374AEC,551 LFBGA96 package?

The 74LVCH32374AEC,551 features 8 VCC and 16 GND balls to minimize supply inductance and ground bounce. This distributed power delivery architecture reduces switching noise, improves signal integrity across all 32 bits, and supports stable operation at high frequencies and fast edge rates in dense PCB layouts.

Is the 74LVCH32374AEC,551 qualified for automotive applications?

The 74LVCH32374AEC,551 is specified for −40 °C to +125 °C operation and meets JEDEC standards, but it is not AEC-Q100 qualified. NXP explicitly states that unless otherwise noted, non-automotive qualified products like the 74LVCH32374AEC,551 are not tested or warranted for automotive use - design-in for such applications is at the customer's own risk.