Nexperia USA Inc. 74LVC823AD,118

Overview

74LVC823AD,118 from Nexperia is a 9-bit positive-edge-triggered D-type flip-flop with independent clock enable (CE), master reset (MR), and 3-state outputs (Q0–Q8), operating from 1.2 V to 3.6 V supply. It features 5 V tolerant inputs/outputs, supports mixed-voltage bus interfacing (3.3 V core ↔ 5 V peripherals), and delivers ≤10 ns propagation delay at 3.3 V for high-speed register applications in industrial control backplanes.

For engineers reviewing the 74LVC823AD,118 datasheet, 74LVC823AD,118 pinout, 74LVC823AD,118 application, or 74LVC823AD,118 equivalent, this device serves as a bus-oriented 9-bit storage register with deterministic timing, robust 5 V tolerance, and thermal-enhanced SO24 packaging suitable for space-constrained industrial PCBs requiring stable level translation and output isolation.

Technical Context

The 74LVC823AD implements nine independent D-type latches synchronized to the rising edge of CP, with MR overriding all state transitions and CE gating clock propagation. Its 3-state output buffer (controlled by OE) operates independently of internal register state-enabling concurrent data latching and bus release without metastability risk.

Input clamping allows safe 5.5 V application on outputs during 3-state disable, while CMOS architecture ensures <10 μA ICC at 3.3 V and -40 °C to +125 °C operation. JEDEC-compliant voltage thresholds (e.g., VIH = 2.0 V min at VCC = 3.0–3.6 V) guarantee interoperability with TTL and LVTTL logic families.

Key Specifications

Pinout & Package

74LVC823AD,118 is housed in a plastic small outline package (SO24, SOT137-1) with 24 leads, 7.5 mm body width, and gull-wing leads compatible with standard reflow profiles.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 9-bit D-type register applications.

Compared with SN74LVC823APW and 74LVC823ABQ, the 74LVC823AD,118 offers the highest thermal margin in convection-cooled industrial environments due to SO24's larger copper leadframe and proven reliability in long-life deployments.

Availability

74LVC823AD,118 is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive body control modules, and medical imaging interfaces requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for 74LVC823AD,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 delivering high-performance logic, analog, and MOSFET solutions optimized for efficiency, reliability, and manufacturability in high-volume applications.

The 74LVC series targets low-voltage, high-speed digital interfacing with strict JEDEC compliance, designed specifically for mixed-signal systems needing robust 5 V tolerance and extended temperature operation without sacrificing speed or power efficiency.

FAQ

What is the maximum clock frequency supported by the 74LVC823AD,118?

The 74LVC823AD,118 supports up to 150 MHz at VCC = 3.0–3.6 V and -40 °C to +125 °C, verified by fmax testing per JEDEC standards. At 3.3 V, typical operation reaches 200 MHz, but the guaranteed minimum is 120 MHz across full temperature range - sufficient for most industrial bus clocking and data capture applications.

Can the 74LVC823AD,118 safely interface with 5 V microcontrollers while powered from 3.3 V?

Yes. All inputs and outputs are 5 V tolerant up to 5.5 V, allowing direct connection to 5 V logic without external level shifters. When powered from 3.3 V, it drives outputs to ≥2.2 V (VOH) at -24 mA load and accepts 5 V inputs without damage or leakage current exceeding ±20 μA - confirmed per datasheet Table 6 and Table 4.

How does the master reset (MR) interact with clock enable (CE) and output enable (OE)?

MR is asynchronous and overrides all other controls: when asserted LOW, it forces all Qn outputs to LOW immediately, regardless of CE or OE state. CE gates clock propagation but does not affect MR; OE controls only output driver state and leaves internal flip-flop contents unchanged - enabling simultaneous reset and bus isolation.

Is the SO24 package (SOT137-1) RoHS compliant and lead-free?

Yes. The 74LVC823AD,118 in SO24 packaging meets RoHS Directive 2011/65/EU and is lead-free, with matte tin (Sn) lead finish. Reflow profile follows IPC/JEDEC J-STD-020D for MSL3 classification, and moisture sensitivity level is rated at Level 3 - requiring bake-out only if exposed to ambient >30 °C/60% RH for >168 hours.