Nexperia USA Inc. 74HCT4060BQ,115

Overview

74HCT4060BQ,115 from Nexperia is a 14-stage binary ripple counter/divider with integrated RC or crystal oscillator circuitry, TTL-compatible inputs (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 5.0 V), 10 buffered outputs (Q3–Q9, Q11–Q13), and asynchronous master reset (MR). It operates from 4.5 V to 5.5 V across –40 °C to +125 °C and is used in precision timing circuits such as real-time clock backup dividers and LED blinker controllers.

For engineers reviewing the 74HCT4060BQ,115 datasheet, 74HCT4060BQ,115 pinout, 74HCT4060BQ,115 application, or 74HCT4060BQ,115 equivalent, this device serves as a low-power, temperature-stable frequency divider where precise division ratios (e.g., ÷8192 on Q13) and oscillator flexibility (RC or crystal) are required in space-constrained industrial timers.

Technical Context

The 74HCT4060BQ,115 implements a synchronous-free ripple-carry architecture where each stage advances on the HIGH-to-LOW transition of the RS input, enabling predictable cumulative propagation delay (e.g., 99 ns max from RS to Q3 at VCC = 4.5 V). Its oscillator terminals (RTC, CTC, RS) support both external clock injection and self-timed operation via RC networks or parallel-resonant crystals.

Input clamping diodes allow safe interfacing to voltages exceeding VCC when current-limiting resistors are used, and the MR pin forces all outputs LOW independently of clock state. The DHVQFN16 package provides thermal enhancement for sustained operation at full temperature range without derating below +106 °C.

Key Specifications

Pinout & Package

DHVQFN16 (SOT763-1) package: 2.5 × 3.5 × 0.85 mm body, no leads, exposed thermal pad (non-soldered by default), 16 terminals in quad arrangement with terminal 1 index area marked.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar binary counter/divider applications.

Compared with 74HC4060BQ,115 and CD4060BE, the 74HCT4060BQ,115 uniquely delivers TTL-level input compatibility at 5 V, full industrial temperature operation, and DHVQFN thermal performance - making it optimal for new designs requiring robust 5 V timing in harsh environments.

Availability

74HCT4060BQ,115 is available at Aetrix Electronics and suitable for industrial timers, automotive power sequencers, LED blinker controllers, and real-time clock divider circuits requiring stable component supply across extended temperature ranges.

Supply support for 74HCT4060BQ,115 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 leading semiconductor manufacturer specializing in high-performance logic, analog, and discrete components with emphasis on automotive-grade reliability and energy efficiency.

The 74HCT4060BQ,115 belongs to Nexperia's 74HCT logic family, designed specifically for robust 5 V TTL-compatible operation in industrial and automotive timing applications where noise immunity and temperature stability are critical.

FAQ

Can the 74HCT4060BQ,115 operate with a 3.3 V supply?

No. The 74HCT4060BQ,115 is specified only for 4.5 V to 5.5 V operation. Its TTL input thresholds require minimum 2.0 V VIH, which cannot be reliably met below 4.5 V supply. For 3.3 V systems, use the 74HC4060BQ,115 variant instead, which supports 2.0–6.0 V and has CMOS input levels.

What is the function of the exposed thermal pad on the DHVQFN16 package?

The exposed pad (terminal 1 index area) is electrically isolated and thermally conductive. Per Nexperia's datasheet, it has no electrical requirement and should remain floating or be connected to VCC if soldered - never to GND. Its purpose is thermal dissipation, improving junction-to-board thermal resistance by ~20 °C/W compared to SO16.

How do I configure the 74HCT4060BQ,115 for crystal oscillator mode?

Connect a parallel-resonant 32.768 kHz crystal between RTC (pin 10) and CTC (pin 9), add a 22–37 pF load capacitor from each crystal terminal to ground, and place a 2.2 kΩ bias resistor from RTC to VCC. Leave RS (pin 11) unconnected - the internal inverter forms the Pierce oscillator with the crystal.

Is the MR pin active-low or active-high?

The MR pin (pin 12) is active-HIGH. A logic HIGH on MR asynchronously clears all 14 counter stages and forces all Q outputs LOW, regardless of RS clock state or oscillator activity. The pin has TTL-compatible input thresholds and internal pull-down to ensure defined state at power-up if left unconnected.