Renesas 74FCT162823CTPVG

Overview

74FCT162823CTPVG from Renesas Electronics is an 18-bit bus interface register with dual 9-bit or unified 18-bit operation, clock enable and asynchronous clear controls, ±24mA balanced output drive, and industrial temperature range (–40°C to +85°C). It serves as a low-noise, high-speed parity bus register in synchronous systems such as telecom backplanes and industrial control I/O modules.

For engineers reviewing the 74FCT162823CTPVG datasheet, 74FCT162823CTPVG pinout, 74FCT162823CTPVG application, or 74FCT162823CTPVG equivalent, key selection criteria include tPLH/tPHL ≤ 4.7 ns (FCT version), output skew < 0.5 ns, 3-state output enable/disable timing, and TSSOP-56 green package compatibility with legacy ABT/FCT register layouts.

Technical Context

The 74FCT162823CTPVG implements two independent 9-bit register sections or one consolidated 18-bit register via shared clock and control logic. Its dual-clock-enable (1CLKEN/2CLKEN) and dual-clear (1CLR/2CLR) architecture supports independent gating and reset of each 9-bit bank.

All inputs feature hysteresis for noise immunity; outputs use current-limiting resistors to suppress ground bounce (<0.6V typical VOLP) and undershoot while enabling controlled fall times - eliminating need for external series termination in point-to-point or lightly loaded stubbed buses.

Key Specifications

Pinout & Package

TSSOP-56 (Green, RoHS-compliant) package with 0.5 mm pitch; 12 × 6.1 mm body size; exposed thermal pad not present.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 18-bit register applications.

Compared with SN74ABT16823DGGR and 74FCT162823ATPVG, the 74FCT162823CTPVG delivers superior noise immunity, faster guaranteed timing, and lower ground bounce - making it optimal for high-reliability, high-speed industrial and telecom register applications where signal integrity is non-negotiable.

Availability

74FCT162823CTPVG is available at Aetrix Electronics and suitable for telecom backplane interfaces, industrial I/O expansion modules, and automated test equipment requiring stable component supply, long-term lifecycle support, and RoHS-compliant TSSOP packaging.

Supply support for 74FCT162823CTPVG 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 delivering microcontrollers, analog, power, and timing solutions for automotive, industrial, and infrastructure markets.

The 74FCT162823CTPVG belongs to Renesas' legacy FCT logic family - engineered for high-speed, low-noise 5V bus interfacing in industrial and telecom systems demanding robust timing and signal integrity.

FAQ

What is the maximum clock frequency supported by the 74FCT162823CTPVG?

The 74FCT162823CTPVG does not specify a maximum clock frequency in its datasheet; instead, it guarantees tW (clock pulse width) ≥ 3 ns and tSU/tH timing margins. Based on propagation delay (tPLH/tPHL ≤ 4.7 ns) and setup/hold requirements, reliable operation up to 100–120 MHz is achievable in well-terminated, low-skew PCB layouts. System-level timing analysis must include board trace delays and load capacitance.

Does the 74FCT162823CTPVG support hot-swap or live-insertion?

The 74FCT162823CTPVG is not explicitly rated for hot-swap operation. Its absolute maximum ratings include VTERM(3) = –0.5 V to VCC+0.5 V on I/O pins, and it lacks bus-hold or power-up 3-state features. For live-insertion, external protection circuitry (e.g., series resistors, TVS diodes) and controlled power sequencing are required to avoid latch-up or overstress during insertion.

Can the 74FCT162823CTPVG be used as a drop-in replacement for the 74FCT162823ATPVG?

Yes - the 74FCT162823CTPVG is pin-compatible and functionally identical to the 74FCT162823ATPVG, differing only in AC timing specifications: the 'C' version guarantees faster propagation (≤4.7 ns vs. ≤10 ns) and tighter output skew (<0.5 ns). No PCB changes are needed, but timing-critical designs benefit from the improved performance of the 'C' variant.

What is the purpose of the dual clock enable (1CLKEN/2CLKEN) and dual clear (1CLR/2CLR) inputs on the 74FCT162823CTPVG?

The dual clock enable and dual clear inputs on the 74FCT162823CTPVG allow independent control of each 9-bit register bank. This enables flexible partitioning - for example, latching sensor inputs on one bank while clearing actuator outputs on the other - without requiring additional logic or clock domain crossing. It supports time-multiplexed or asymmetric data flow in modular I/O architectures.

Is the 74FCT162823CTPVG compliant with JEDEC standards for 5V CMOS logic?

Yes - the 74FCT162823CTPVG meets JEDEC Standard JESD8-6 for 5V CMOS input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V), output drive (VOH ≥ 2.4 V at –24 mA, VOL ≤ 0.55 V at 24 mA), and noise margin specifications. Its hysteresis-enhanced inputs exceed standard noise immunity requirements, making it suitable for interoperability with legacy TTL and CMOS systems.