Texas Instruments CLVCH16652AIDGGREP

Overview

CLVCH16652AIDGGREP from Texas Instruments is a radiation-hardened 16-bit bus transceiver and register with 3-state outputs, designed for 1.65-V to 3.6-V VCC operation. It integrates dual 8-bit D-type flip-flop registers, independent A↔B bidirectional data paths, and complementary OE/S/CLK controls-enabling real-time or stored-data transfer in space-grade mixed-voltage (3.3-V/5-V) digital systems such as satellite command/data handling units.

For engineers reviewing the CLVCH16652AIDGGREP datasheet, CLVCH16652AIDGGREP pinout, CLVCH16652AIDGGREP application, or CLVCH16652AIDGGREP equivalent, key selection criteria include its 6.3-ns max propagation delay at 3.3 V, ±24-mA output drive, bus-hold inputs eliminating external resistors, Ioff partial-power-down support, and TSSOP-56 package with extended temperature range (–40°C to 85°C).

Technical Context

The CLVCH16652AIDGGREP implements two independent 8-bit transceiver channels (A↔B), each with dedicated clock (CLKAB/CLKBA), select (SAB/SBA), and output-enable (OEAB/OEBA) controls. Its dual-register architecture allows simultaneous storage of A- and B-bus data on low-to-high clock transitions, with glitch-free multiplexing between real-time and latched data paths.

It supports mixed-mode signal operation: inputs tolerate up to 5.5 V regardless of VCC (1.65–3.6 V), enabling direct interfacing between 3.3-V logic and legacy 5-V subsystems. Bus-hold circuitry maintains valid logic levels on floating inputs, and Ioff limits leakage during power-down states-critical for fault-tolerant spacecraft avionics busing.

Key Specifications

Pinout & Package

TSSOP-56 (DGG) package: 14.1 mm × 6.2 mm × 1.2 mm body, 0.5-mm pitch, RoHS-compliant CU-NiPdAu finish, MSL Level-1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit registered transceiver applications.

Compared with SN74LVCH16652A and SN74LVC16652DGGR, the CLVCH16652AIDGGREP uniquely delivers radiation-hardened reliability, extended temperature operation, bus-hold, Ioff, and 5.5-V input tolerance-all in the same TSSOP-56 footprint-making it irreplaceable for mission-critical space electronics where functional safety and environmental resilience are mandatory.

Availability

CLVCH16652AIDGGREP is available at Aetrix Electronics and suitable for aerospace avionics, satellite C&DH systems, and radiation-tolerant industrial controllers requiring stable component supply, full traceability, and long-term lifecycle assurance.

Supply support for CLVCH16652AIDGGREP 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

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and high-reliability logic solutions for industrial, automotive, and aerospace markets.

The CLVCH16652AIDGGREP belongs to TI's Widebus™ family of high-speed, low-voltage CMOS transceivers engineered specifically for robust, mixed-voltage digital interconnect in mission-critical systems.

FAQ

What is the primary function of the CLVCH16652AIDGGREP?

The CLVCH16652AIDGGREP is a 16-bit registered bus transceiver with 3-state outputs. It enables bidirectional data flow between two 8-bit buses (A and B), supports real-time or stored-data transfer via clocked D flip-flops, and provides independent control over direction, output enable, and data source selection-making it ideal for synchronized, fault-resilient digital interconnect in space-grade electronics.

Does the CLVCH16652AIDGGREP support mixed-voltage operation?

Yes, the CLVCH16652AIDGGREP supports mixed-voltage operation: its inputs tolerate up to 5.5 V regardless of VCC (1.65–3.6 V), allowing direct interfacing between 3.3-V logic domains and legacy 5-V peripherals without external level shifters-critical for upgrading subsystems in existing spacecraft architectures.

What is the significance of bus-hold circuitry in the CLVCH16652AIDGGREP?

The CLVCH16652AIDGGREP integrates active bus-hold circuitry on all data inputs, maintaining unused or floating lines at their last-valid logic level. This eliminates the need for external pullup/pulldown resistors, reduces board space and BOM cost, and prevents undefined states that could trigger spurious interrupts or logic errors in unconnected or intermittently disconnected interfaces.

How does the CLVCH16652AIDGGREP handle power sequencing and partial power-down?

The CLVCH16652AIDGGREP features Ioff support, which disables input/output leakage paths when VCC = 0 V. This prevents backfeeding between powered and unpowered sections of a system-essential for safe hot-swap operations, modular avionics architectures, and fault-isolation strategies in redundant spacecraft subsystems using the CLVCH16652AIDGGREP.

Is the CLVCH16652AIDGGREP pin-compatible with commercial variants?

Yes, the CLVCH16652AIDGGREP is pin-compatible with the commercial SN74LVCH16652A and SN74LVC16652DGGR in the TSSOP-56 (DGG) package. However, only the CLVCH16652AIDGGREP offers radiation-hardened construction, extended temperature qualification (–40°C to +85°C), and enhanced reliability testing per JESD standards-making it the sole option for flight-critical applications.