NXP Semiconductors 74LVCH32374AEC,518

Overview

74LVCH32374AEC,518 from NXP Semiconductors is a 32-bit edge-triggered D-type flip-flop with independent 8-bit sections, 5 V tolerant I/O, 3-state outputs, and bus hold on all data inputs-designed for high-density bus interface in industrial control and data acquisition systems operating from −40 °C to +125 °C.

For engineers reviewing the 74LVCH32374AEC,518 datasheet, 74LVCH32374AEC,518 pinout, 74LVCH32374AEC,518 application, or 74LVCH32374AEC,518 equivalent, this device delivers precise timing control, mixed-voltage interoperability (1.2 V–3.6 V core with 5 V I/O), and noise-immune bus-hold functionality without external pull-ups.

Technical Context

The 74LVCH32374AEC,518 implements four independent 8-bit D-type flip-flop sections, each with dedicated clock (nCP) and output enable (nOE) inputs. Data latching occurs on the LOW-to-HIGH transition of nCP, meeting set-up/hold time requirements down to 1.9 ns at 3.0–3.6 V supply.

Its 3-state outputs support bidirectional bus sharing, while bus hold circuitry maintains valid logic states on unused inputs. The device complies with JEDEC standards JESD8-7A, JESD8-5A, and JESD8-C/JESD36 across its full 1.2 V–3.6 V VCC range and supports 5 V tolerant operation on both inputs and outputs.

Key Specifications

Pinout & Package

74LVCH32374AEC,518 is packaged in a plastic low-profile fine-pitch ball grid array (LFBGA96, SOT536-1) measuring 13.5 mm × 5.5 mm × 1.05 mm with 96 solder balls.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC32374ARGYR, 74LVCH32374AEC,518 adds bus hold and extended temperature range at the cost of larger package; versus 74ALVCH32374AEC,518, it trades 1.5 ns slower propagation for lower static current and reduced dynamic power consumption.

Availability

74LVCH32374AEC,518 is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, automated test equipment, and medical imaging systems requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for 74LVCH32374AEC,518 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in mixed-signal logic and interface ICs.

The 74LVCH32374AEC,518 belongs to NXP's LVCH family of advanced CMOS logic devices engineered for low-power, high-noise-immunity bus interfacing in mixed-voltage embedded systems.

FAQ

What is the maximum clock frequency supported by the 74LVCH32374AEC,518?

The 74LVCH32374AEC,518 supports a maximum clock frequency of 150 MHz at VCC = 3.0–3.6 V and −40 °C to +125 °C ambient. At lower voltages (e.g., 2.7 V), the max frequency reduces to 120 MHz. These values derive directly from the minimum clock pulse width (tW = 3.0 ns) and propagation delay specifications in the official NXP datasheet Rev. 3.

Does the 74LVCH32374AEC,518 require external pull-up resistors on its data inputs?

No, the 74LVCH32374AEC,518 does not require external pull-up resistors because all 32 data inputs (1D[0:7] through 4D[0:7]) include integrated bus hold circuitry. This feature actively maintains the last valid logic state when inputs are un-driven, as confirmed in Section 2 (Features and benefits) and Table 6 (Static characteristics) of the NXP datasheet.

Can the 74LVCH32374AEC,518 operate with a 1.2 V supply voltage?

Yes, the 74LVCH32374AEC,518 is fully specified to operate at VCC = 1.2 V, with functional operation guaranteed across 1.2–3.6 V. At 1.2 V, propagation delay increases to 14 ns and maximum frequency drops to 100 MHz, as documented in Table 7 (Dynamic characteristics) of the NXP datasheet Rev. 3.

What is the purpose of the multiple VCC and GND pins on the 74LVCH32374AEC,518 LFBGA96 package?

The 74LVCH32374AEC,518 features eight VCC and sixteen GND balls to minimize power distribution inductance and ground bounce during simultaneous switching of its 32 outputs. This multi-pin architecture ensures stable supply delivery and low-noise operation in high-speed parallel bus applications, as explicitly stated in the "Features and benefits" section of the NXP datasheet.

Is the 74LVCH32374AEC,518 pin-compatible with the standard 74LVC32374?

No, the 74LVCH32374AEC,518 is not pin-compatible with the standard 74LVC32374 due to differences in package type (LFBGA96 vs. TSSOP-56 or VQFN-48) and pin assignment. While both share functional equivalence as 32-bit D-type latches, the 74LVCH32374AEC,518 uses a 96-ball BGA layout optimized for high-density routing and thermal performance, as shown in Figure 3 and Table 2 of the NXP datasheet.