Renesas 74HC4511FPEL-E

Overview

74HC4511FPEL-E from Renesas Electronics is a BCD-to-seven-segment latch/decoder/driver IC designed for direct LED digit display control in digital instrumentation and embedded front panels. It integrates storage latching, BCD decoding, and high-current segment driving (IOH/ IOL = ±4 mA at VCC = 4.5 V), operates across 2–6 V supply, and supports lamp test (LT), blanking (BI), and latch enable (LE) functions for real-time display management in industrial meters and test equipment.

For engineers reviewing the 74HC4511FPEL-E datasheet, 74HC4511FPEL-E pinout, 74HC4511FPEL-E application, or 74HC4511FPEL-E equivalent, key selection criteria include its 16-pin SOP package (JEITA PRSP0016DH-B), guaranteed 31 ns typical propagation delay (A–D to a–g, CL = 50 pF), ±1 µA max input current, 4 µA max quiescent ICC, and compatibility with common-cathode seven-segment displays requiring active-high segment drive.

Technical Context

The 74HC4511FPEL-E implements a synchronous 4-bit latch followed by a BCD-to-seven-segment decoder with active-high outputs optimized for common-cathode LEDs. Its BI input forces all segment outputs low for blanking, LT enables full-segment test mode, and LE controls when the BCD input is latched - enabling stable static display even while inputs change.

It uses standard HC CMOS logic with rail-to-rail output swing, supports fanout of 10 LSTTL loads, and maintains valid operation over –40°C to +85°C ambient temperature. Input thresholds scale with VCC (VIH ≥ 70% VCC, VIL ≤ 30% VCC), ensuring noise immunity across the full 2–6 V supply range.

Key Specifications

Pinout & Package

SOP-16 package (JEITA PRSP0016DH-B, Renesas code FP-16DAV), 5.5 mm × 10.06 mm body, 1.27 mm pitch, Ni/Pd/Au-plated leads, tape-and-reel (2000 pcs/reel).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar BCD-to-seven-segment driver applications.

Compared with SN74HC4511N and CD4511BE, the 74HC4511FPEL-E delivers superior speed, lower power, and surface-mount compatibility - making it optimal for modern industrial and portable instrumentation where board space, power budget, and update rate matter.

Availability

74HC4511FPEL-E is available at Aetrix Electronics and suitable for digital panel meters, industrial PLC HMIs, and battery-powered multimeters requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for 74HC4511FPEL-E 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

Renesas Electronics Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and timing solutions for industrial, automotive, and infrastructure markets.

The HD74HC4511 product line was developed specifically for reliable, low-power BCD-driven LED display interfaces in industrial instrumentation and embedded human-machine interfaces.

FAQ

What is the maximum output current per segment on the 74HC4511FPEL-E?

The 74HC4511FPEL-E provides ±4 mA output current per segment (a–g) at VCC = 4.5 V, sufficient to drive standard common-cathode LED digits without external buffers. This rating is verified under VOH ≥ 4.18 V and VOL ≤ 0.26 V conditions per the Renesas datasheet REJ03D0652-0300.

Does the 74HC4511FPEL-E support common-anode displays?

No, the 74HC4511FPEL-E is designed exclusively for common-cathode seven-segment displays, as its outputs are active-high (a–g = H lights segment). Driving common-anode displays would require external inverters or a different IC such as the 74HC4543, which has active-low outputs.

How does the latch enable (LE) pin function on the 74HC4511FPEL-E?

The LE pin controls data capture: when LE = H, the internal latch is transparent and outputs follow BCD inputs in real time; on the falling edge of LE, the current BCD value is stored and held, allowing stable display even if inputs change afterward. This behavior is confirmed in the Function Table on page 2 of the HD74HC4511 datasheet.

Can the 74HC4511FPEL-E operate at 3.3 V supply?

Yes, the 74HC4511FPEL-E is fully specified for VCC = 2.0–6.0 V, including 3.3 V operation. At 3.3 V, VIH is guaranteed ≥ 2.31 V and VIL ≤ 0.99 V, ensuring robust interfacing with 3.3 V microcontrollers and meeting HC family noise margin requirements.

What is the purpose of the blanking input (BI) on the 74HC4511FPEL-E?

The BI pin is an active-low blanking control: when BI = L, all segment outputs (a–g) are forced low regardless of latch content or LT state, turning off the display. This enables hardware-based brightness control via PWM or complete display disable during system sleep - a feature validated in the Function Table and switching characteristics section of the datasheet.