NXP Semiconductors 74HC4511N,652

Overview

74HC4511N,652 from Nexperia is a high-speed CMOS BCD-to-7-segment latch/decoder/driver for common-cathode LED displays, featuring active-low latch enable (LE), lamp test (LT), and ripple blanking (BI) inputs, 10 mA output drive per segment, and propagation delays as low as 12 ns (LT→Qn at VCC = 5 V). It operates across 2.0–6.0 V supply range and supports stable display control in digital instrumentation.

For engineers reviewing the 74HC4511N,652 datasheet, 74HC4511N,652 pinout, 74HC4511N,652 application, or 74HC4511N,652 equivalent, key selection criteria include latch storage behavior, active-low control logic timing, segment output drive strength, and compatibility with TTL-level input thresholds in mixed-signal systems.

Technical Context

The 74HC4511N,652 implements a synchronous latch architecture where LE controls data capture: when LE is LOW, outputs Qa–Qg follow D1–D4 BCD inputs; when LE transitions HIGH, the current BCD value is latched and held. LT and BI operate independently of latching-LT forces all outputs HIGH for display testing, while BI forces all outputs LOW for blanking.

It delivers non-standard output capability with guaranteed 10 mA sink current per segment at VOH ≥ 3.7 V (VCC = 4.5 V, −IO = 7.5 mA), supports JEDEC Standard No. 7A, and exhibits propagation delays of 24 ns (Dn→Qn) and 19 ns (BI→Qn) under typical 5 V/15 pF conditions.

Key Specifications

Pinout & Package

DIP-16 package with 0.3-inch body width and through-hole mounting; RoHS-compliant lead finish; meets JEDEC MS-001 standard outline.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar BCD-to-7-segment latch/decoder/driver applications.

Compared with 74HC4511N,652, the 74HCT4511N,652 offers improved noise immunity in noisy industrial environments but trades 1 ns latency; SN74LS47N provides higher drive current but requires external components and lacks latching-making it unsuitable for glitch-free BCD updates.

Availability

74HC4511N,652 is available at Aetrix Electronics and suitable for digital panel meters, industrial control displays, and consumer appliance displays requiring stable component supply, long-term lifecycle support, and RoHS-compliant through-hole packaging.

Supply support for 74HC4511N,652 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 leader in discrete, logic, and PowerMOS semiconductors, spun off from NXP's Standard Products division in 2017 and focused on automotive, industrial, computing, and consumer markets.

The 74HC4511N,652 belongs to Nexperia's 74HC logic family, engineered for high-speed, low-power BCD decoding and display driving in cost-sensitive, reliability-critical embedded systems.

FAQ

What is the supply voltage range supported by the 74HC4511N,652?

74HC4511N,652 operates from 2.0 V to 6.0 V, enabling use in both 3.3 V and 5 V digital systems without level translation. Its CMOS input structure maintains consistent logic thresholds across this range, and output drive capability remains specified down to 2.0 V (with reduced current), making 74HC4511N,652 suitable for battery-powered or dual-rail applications where supply headroom is constrained.

Does the 74HC4511N,652 support common-anode LED displays?

No, the 74HC4511N,652 is designed exclusively for common-cathode LED displays, with active-HIGH segment outputs (Qa–Qg) that sink current to ground. Driving common-anode displays would require external inverters or PNP transistors - unlike the SN74LS47N, which has open-collector outputs intended for common-anode configurations. The 74HC4511N,652 datasheet explicitly specifies common-cathode operation in its functional diagrams and application circuits.

How does the latch enable (LE) input function in the 74HC4511N,652?

In the 74HC4511N,652, the LE input is active-LOW: when LE is LOW, Qa–Qg outputs track D1–D4 BCD inputs in real time; when LE transitions HIGH, the current BCD value is captured and held, freezing the display even if D1–D4 change. This latching behavior prevents display glitches during BCD bus updates and is essential for multiplexed or shared-bus systems - a core functional distinction confirmed in the 74HC4511N,652 function table and logic diagram.

What is the maximum output current per segment for the 74HC4511N,652?

The 74HC4511N,652 guarantees 10 mA sink current per segment output (Qa–Qg) at VOH ≥ 3.7 V with VCC = 4.5 V and −IO = 7.5 mA, as specified in its non-standard DC characteristics table. This rating is validated across −40 °C to +125 °C and supports direct drive of standard low-current LEDs without external buffers - a key design parameter distinguishing 74HC4511N,652 from lower-drive logic families like 74HC244 or generic buffer ICs.

Can the 74HC4511N,652 be used with incandescent or gas discharge displays?

Yes, the 74HC4511N,652 is qualified for incandescent, fluorescent, gas discharge, and LCD displays per its official Applications section and Figure 14–16. For incandescent displays, a filament pre-warm resistor is recommended to limit inrush current; for gas discharge types, external current-limiting resistors are required due to higher operating voltages. These use cases are explicitly documented in the 74HC4511N,652 datasheet and do not rely on inference or generic capability claims.