Nexperia USA Inc. 74LV393DB,118

Overview

74LV393DB,118 from Nexperia is a dual 4-bit binary ripple counter IC with two independent asynchronous master reset inputs (1MR, 2MR), two edge-triggered clock inputs (1CP, 2CP), and eight buffered outputs (1Q0–1Q3, 2Q0–2Q3). It operates from 1.0 V to 3.6 V, advances on HIGH-to-LOW clock transitions, and delivers propagation delays as low as 5 ns at 3.3 V. It is used in digital timing, frequency division, and event counting circuits within industrial control logic and instrumentation systems.

For engineers reviewing the 74LV393DB,118 datasheet, 74LV393DB,118 pinout, 74LV393DB,118 application, or 74LV393DB,118 equivalent, this page provides verified functional context, SO14 package mapping, dual-counter timing behavior, static/dynamic electrical specifications, and real-world use cases - all derived from Nexperia's Rev. 7 product data sheet dated 22 March 2024.

Technical Context

The 74LV393DB,118 implements two independent 4-stage ripple counters using cascaded T-type flip-flops, each advancing on the falling edge of its dedicated clock input. Each counter resets asynchronously via its own active-HIGH master reset (1MR/2MR), forcing all four outputs LOW regardless of clock state.

It features TTL-compatible input thresholds at VCC ≥ 2.7 V, clamp diodes enabling overvoltage-tolerant interfacing, and output ground bounce (VOLP) and undershoot (VOHV) values specified at 0.8 V and 2.0 V respectively under 3.3 V operation. The device complies with JEDEC Std 7A and supports ambient temperatures from −40 °C to +125 °C.

Key Specifications

Pinout & Package

74LV393DB,118 is supplied in the SO14 (SOT108-1) plastic small outline package: 14-pin, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads. Pin 1 is marked by a beveled corner or notch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual 4-bit binary counter applications.

Compared with SN74LV393AIPW and 74HC393PW,118, the 74LV393DB,118 uniquely supports 1.0 V operation and fits the industry-standard SO14 footprint - making it the only option for space-constrained, single-supply 1.2/1.8 V systems requiring drop-in replaceability and full temperature-range reliability.

Availability

74LV393DB,118 is available at Aetrix Electronics and suitable for industrial timer modules, digital frequency dividers, event counter interfaces, and quadrature encoder preprocessors requiring stable component supply across extended temperature ranges and low-voltage operation.

Supply support for 74LV393DB,118 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

Nexperia is a global semiconductor expert focused on high-volume, high-reliability logic, analog, and discrete components for industrial, automotive, and consumer applications.

The 74LV393DB,118 belongs to Nexperia's LV (Low-Voltage) logic family, engineered specifically for energy-efficient digital systems operating below 3.6 V while maintaining robust noise immunity and wide temperature tolerance.

FAQ

Can 74LV393DB,118 operate reliably at 1.2 V supply?

Yes. The device is fully specified down to 1.0 V: propagation delay is 75 ns typical at 1.2 V, VIH is 0.9 V min, and ICC remains below 20 μA. All static and dynamic parameters in Tables 5–10 are validated across the full 1.0 V to 3.6 V range, including −40 °C to +125 °C operation.

Is the 74LV393DB,118 pin-compatible with older 74LS393 or 74HC393 packages?

No. While the logical function and pin numbering match JEDEC-standard 14-pin DIP/SO layouts, the 74LV393DB,118 uses SO14 (SOT108-1) with 1.27 mm pitch, whereas 74LS393 typically uses wider-pitch DIP or SOIC packages. Electrical compatibility exists, but mechanical fit requires verification of land pattern dimensions per Figure 9 in the datasheet.

What is the maximum fan-out capability of 74LV393DB,118 outputs?

Each output drives up to 10 LVTTL loads (IO = ±6 mA) or 20 CMOS loads (IO = ±100 μA) at VCC = 3.3 V. The buffered outputs maintain VOH ≥ 2.4 V and VOL ≤ 0.4 V under these conditions, ensuring noise margins exceed 0.4 V for 3.3 V logic families.

Does 74LV393DB,118 support synchronous reset or clock enable functionality?

No. The device implements only asynchronous master reset (nMR) - there is no synchronous reset, clock enable, or preset functionality. Reset occurs immediately upon nMR assertion, regardless of clock phase, and cannot be gated or delayed by clock edges.