Nexperia USA Inc. 74HC241D,652

Overview

74HC241D,652 from Nexperia is an octal non-inverting 3-state buffer/line driver in SO20 (SOT163-1) package, operating from 2.0 V to 6.0 V supply, featuring dual independent output enables (1OE active LOW, 2OE active HIGH), CMOS-level inputs, and −40 °C to +125 °C temperature range. It supports bidirectional bus interfacing in industrial control backplanes and legacy parallel data paths.

For engineers reviewing the 74HC241D,652 datasheet, 74HC241D,652 pinout, 74HC241D,652 application, or 74HC241D,652 equivalent, key selection criteria include dual 4-bit enable control, high-impedance OFF-state leakage (<±5 μA), propagation delay of 7 ns (VCC = 6.0 V), and compatibility with 5 V TTL logic via 74HCT241 variants.

Technical Context

The device implements two independent 4-bit buffered channels: inputs 1A0–1A3 drive outputs 1Y0–1Y3 under control of 1OE (active LOW), while 2A0–2A3 drive 2Y0–2Y3 under 2OE (active HIGH). Each channel operates non-invertingly with rail-to-rail CMOS output swing.

Input clamp diodes allow safe interfacing to voltages exceeding VCC when used with current-limiting resistors. The 74HC241 variant maintains CMOS input thresholds (VIH ≥ 3.15 V at VCC = 4.5 V), distinguishing it from TTL-compatible 74HCT241 (VIH ≥ 2.0 V).

Key Specifications

Pinout & Package

SO20 plastic small outline package (SOT163-1), 20-pin, 7.5 mm body width, 1.27 mm pitch, gull-wing leads.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal 3-state buffer applications.

Compared with 74HC241D,652, the 74HCT241D,652 offers seamless integration into 5 V TTL ecosystems without level-shifting, while the SN74LVC244APWR delivers higher speed and lower voltage operation at the cost of simplified enable architecture and incompatible pinout.

Availability

74HC241D,652 is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive body control modules, legacy parallel printer ports, and automated test equipment requiring stable component supply across extended temperature ranges.

Supply support for 74HC241D,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 semiconductor expert delivering high-performance logic, analog, and MOSFET solutions with focus on efficiency, reliability, and sustainability.

The 74HC241 belongs to Nexperia's HC logic family, engineered for robust 5 V digital interfacing in industrial and automotive applications where wide supply range and high noise immunity are critical.

FAQ

What is the maximum clock frequency supported by 74HC241D,652?

The 74HC241D,652 is not a clocked device-it has no internal clock and operates asynchronously. Its usable data rate is determined by propagation delay (7 ns typ at VCC = 6.0 V) and system-level timing margins. For reliable 8-bit parallel transfers, it supports sustained data rates up to ~70 MHz in well-designed PCB layouts with controlled impedance and proper termination.

Can 74HC241D,652 drive a 50 pF load at 6 V supply?

Yes. At VCC = 6.0 V, the device delivers ±7.8 mA output current with VOL ≤ 0.4 V and VOH ≥ 5.2 V into 50 pF loads, meeting JEDEC-compliant switching performance. Measured transition time is 4–10 ns, ensuring clean edges without excessive ringing when paired with appropriate series termination.

How does the dual output enable (1OE and 2OE) improve system design?

Dual enables allow independent control of two 4-bit sub-buses-e.g., holding address lines active while tri-stating data lines during read-modify-write cycles. This eliminates need for external gating logic, reduces component count, and enables precise timing alignment between bus segments in multiprocessor or hot-swap architectures.

Is 74HC241D,652 RoHS compliant and halogen-free?

Yes. Per Nexperia's product compliance documentation, 74HC241D,652 (SOT163-1 package) meets RoHS Directive 2011/65/EU and is certified halogen-free (IEC 61249-2-21), with no brominated flame retardants or chlorine-based compounds in the molding compound or leadframe plating.