Nexperia USA Inc. HEF4094BTS,118

Overview

HEF4094BTS,118 from Nexperia is an 8-bit CMOS serial-in/parallel-out shift-and-store register with independent shift and storage clocks, 3-state outputs, dual serial outputs (QS1/QS2) for cascading, and operation across 3.0 V to 15.0 V supply. It enables serial-to-parallel data conversion in LED matrix drivers and remote control holding registers, supporting industrial temperature range (-40 °C to +125 °C).

For engineers reviewing the HEF4094BTS,118 datasheet, HEF4094BTS,118 pinout, HEF4094BTS,118 application, or HEF4094BTS,118 equivalent, key selection criteria include its dual-edge-cascadable serial outputs (QS1 on CP ↑, QS2 on CP ↓), strobe-controlled parallel latch timing, and 3-state output enable for bus sharing in multi-device systems.

Technical Context

The device implements two synchronized but independent 8-bit shift registers: a serial shift register clocked on CP rising edges and a parallel storage register loaded via STR high pulse. Data propagation from shift to storage register is synchronous and non-overlapping, preventing metastability during load transitions.

Its dual serial outputs provide deterministic edge-aligned cascading: QS1 delivers shifted data on the same CP rising edge (suitable for fast-clock domains), while QS2 presents the same data on the subsequent CP falling edge (enabling robust inter-stage synchronization under slow-edge or noisy conditions).

Key Specifications

Pinout & Package

HEF4094BTS,118 is supplied in SOT338-1 (SSOP16) package: plastic shrink small outline, 16 leads, body width 5.3 mm, pitch 0.65 mm. Pin 1 index marked, lead finish matte tin.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit shift-and-store register applications.

Compared with 74HC595PW,118 and CD4094BE, HEF4094BTS,118 uniquely balances industrial-grade voltage range, dual-edge cascading capability, and AEC-Q200-aligned ESD robustness - making it optimal for new designs requiring long-chain reliability and mixed-voltage interoperability.

Availability

HEF4094BTS,118 is available at Aetrix Electronics and suitable for LED matrix drivers, remote control decoder interfaces, industrial I/O expanders, and PLC output modules requiring stable component supply across extended temperature and voltage ranges.

Supply support for HEF4094BTS,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 focused on high-volume, high-reliability logic, discrete, and MOSFET solutions, serving automotive, industrial, and consumer markets with ISO/TS 16949-certified manufacturing.

The HEF4094B product line delivers robust, wide-supply CMOS shift-and-store registers designed specifically for industrial control, display driving, and remote interface applications where noise immunity and voltage flexibility are critical.

FAQ

What is the maximum clock frequency supported by HEF4094BTS,118 at 15 V supply?

At VDD = 15 V, the maximum operating frequency is 28 MHz (typical) with CL = 50 pF load, per Table 7. This assumes clean clock edges and proper decoupling; actual system-level limit may be lower due to board trace capacitance and driver strength.

Can QS1 and QS2 be used simultaneously to drive different downstream devices?

Yes - QS1 and QS2 carry identical data but with ½-clock-cycle phase offset. They can drive separate cascaded chains (e.g., QS1 → next HEF4094BTS,118; QS2 → separate decoder IC), provided each load remains within IOH/IOL limits and timing margins are verified.

Does the OE pin affect internal register contents during high-impedance state?

No - the OE pin controls only the output buffer stage. Internal shift and storage registers retain their state regardless of OE logic level. This allows continuous serial shifting while outputs remain disabled, enabling glitch-free bus arbitration.

Is HEF4094BTS,118 pin-compatible with older HEF4094B variants in SO16 or TSSOP16 packages?

No - HEF4094BTS,118 uses SOT338-1 (SSOP16) with 0.65 mm pitch, whereas SO16 (SOT109-1) and TSSOP16 (SOT403-1) have 1.27 mm and 0.65 mm pitches respectively but different land patterns and thermal pads. Mechanical redesign is required for package substitution.