NXP Semiconductors N74F5074D,602

Overview

N74F5074D,602 from Philips Semiconductors is a synchronizing dual D-type flip-flop with clock driver functionality, featuring metastable-immune operation, 120MHz maximum clock frequency, ±15mA high-source output drive, and independent asynchronous set/reset inputs. It delivers true/complementary outputs per channel and is used in high-reliability clock domain crossing and data synchronization circuits operating at 5V.

For engineers reviewing the N74F5074D,602 datasheet, N74F5074D,602 pinout, N74F5074D,602 application, or N74F5074D,602 equivalent, key selection criteria include guaranteed sub-1.5ns output skew, immunity to metastability-induced glitches under setup/hold violations, industrial-grade timing margins, and compatibility with legacy 74F74-based clock distribution layouts.

Technical Context

The N74F5074D,602 implements two independent positive-edge-triggered D-type latches with fully asynchronous active-low set (SDn) and reset (RDn) inputs, each supporting true (Qn) and complementary (Qn) outputs. Its patented internal circuitry resolves metastable states internally-extending propagation delay but never producing output glitches-even when D-input transitions violate setup (1.5ns min) or hold (1.0ns min) timing.

Designed for 5V ±10% supply operation across 0°C to +70°C, it achieves 120MHz fmax at 25°C with 50pF load and guarantees 2.0–6.0ns CPn-to-Qn propagation delay. Output skew between any Q/Q pair is bounded at ≤1.5ns under matched loading and temperature conditions, enabling precise clock fanout and phase-aligned sampling.

Key Specifications

Pinout & Package

Package: 14-pin plastic small outline (SO14), SOT108-1, body width 3.9 mm, surface-mount compatible.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual D-type flip-flop applications.

Compared with SN74F74N and 74ACT574PC, the N74F5074D,602 uniquely delivers guaranteed metastability immunity and sub-1.5ns skew in a dual-channel 14-pin SO package-making it the only option for robust, single-chip clock-domain crossing without additional logic or layout changes.

Availability

N74F5074D,602 is available at Aetrix Electronics and suitable for high-reliability clock domain crossing, synchronous bus interfacing, and test equipment signal conditioning requiring stable component supply and long-term obsolescence management.

Supply support for N74F5074D,602 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

Philips Semiconductors (now NXP Semiconductors) is a global semiconductor innovator founded in the Netherlands, specializing in logic, analog, and mixed-signal ICs for industrial, automotive, and communications systems.

The 74F5074 family was designed specifically for metastability-critical applications such as asynchronous data acquisition, real-time control interlocks, and instrumentation-where traditional D-flip-flops risk system failure due to timing violations.

FAQ

What is the maximum clock frequency supported by the N74F5074D,602?

The N74F5074D,602 supports a maximum clock frequency of 120MHz at VCC = 5.0V and Tamb = 25°C with CL = 50pF. At full commercial temperature range (0°C to +70°C) and VCC = 5.0V ±10%, the guaranteed minimum fmax is 90MHz. This specification is measured under defined AC test conditions and reflects the highest reliable toggle rate for synchronous operation of both flip-flop channels in the N74F5074D,602.

Does the N74F5074D,602 have true metastability immunity, and how is it implemented?

Yes, the N74F5074D,602 features patented metastability immunity: when setup or hold time violations occur, internal circuitry resolves metastable states without output glitches-only extending propagation delay. Measured parameters τ ≈ 135ps and T₀ ≈ 9.8×10⁶ sec confirm this behavior. The N74F5074D,602 achieves this via proprietary latch design that prevents oscillatory or indeterminate output states, making it uniquely suited for asynchronous signal synchronization where reliability is critical.

Is the N74F5074D,602 pin-compatible with the standard 74F74?

Yes, the N74F5074D,602 is pin-compatible with the 74F74 in both DIP and SO packages, sharing identical pin configuration (SD0, Q0, Q0, CP0, RD0, D0, etc.) and electrical interface. This allows direct PCB-level replacement in existing 74F74 designs. However, the N74F5074D,602 adds metastability immunity and tighter output skew (≤1.5ns vs. up to 3.0ns), delivering enhanced reliability without layout modification.

What are the supply voltage and temperature specifications for the N74F5074D,602?

The N74F5074D,602 operates over VCC = 4.5V to 5.5V and ambient temperature 0°C to +70°C (commercial range). Absolute maximum ratings allow VCC up to +7.0V and storage temperature from –65°C to +150°C. Recommended DC operating conditions specify VIH ≥ 2.0V, VIL ≤ 0.8V, and total supply current ICC ≤ 30mA at VCC = 5.5V. These values define the validated operating envelope for the N74F5074D,602.

How does the N74F5074D,602 handle asynchronous set and reset inputs?

The N74F5074D,602 provides independent active-low asynchronous set (SD0/SD1) and reset (RD0/RD1) inputs per channel, which override clock and data to force Qn = H/L or Qn = L/H immediately-regardless of CPn state. Each SDn/RDn input has 1.0 unit load, –20µA low-level input current, and 3.0ns minimum pulse width requirement. These inputs operate outside the clock domain, enabling immediate state control in safety-critical or initialization sequences within the N74F5074D,602.