SCAN921821TSM/NOPB

Overview

The SCAN921821TSM/NOPB is a dual 18-bit serializer manufactured by Texas Instruments, designed for high-speed serial data transmission. It operates within a supply voltage range of 3.15 V to 3.45 V and supports data rates up to 2.376 Gb/s. The device features LVDS input and output types, with 18 inputs and one output channel. It functions reliably across an operating temperature range of -40°C to +85°C. Power consumption is characterized by a maximum power dissipation of 3.57 W and a typical operating current of 325 mA. The component is housed in a 100-pin NFBGA package suitable for surface mount technology.

Feature Summary

• Integrates IEEE 1149.1 (JTAG) compliance for standardized boundary scan testing capabilities.
• Includes at-speed built-in self-test (BIST) functionality to verify high-speed signal integrity during operation.
• Features pre-emphasis circuitry to enhance signal quality and reduce distortion over transmission channels.

Applications

• High-speed digital interface systems requiring parallel-to-serial conversion.
• Test and measurement equipment utilizing boundary scan architectures.
• Industrial control systems needing reliable high-bandwidth data serialization.

Procurement Notes

Verify the specific ordering suffix against official Texas Instruments documentation to ensure correct package type and environmental rating. Confirm that the NOPB designation aligns with lead-free manufacturing standards required for your assembly process. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability before finalizing procurement orders.

Selection Notes

Select this component when designing systems that require dual 18-bit serialization at speeds up to 2.376 Gb/s. Ensure the design accommodates the 3.15 V to 3.45 V power supply requirements and the thermal constraints associated with 3.57 W power dissipation. Verify compatibility with LVDS signaling standards and confirm that the NFBGA-100 footprint fits the target PCB layout constraints.

Part Context

This device belongs to the SCAN921821 series of serializers from Texas Instruments. It is specifically engineered for applications demanding high-density data serialization with integrated test features. The series supports various interface protocols and is distinct from deserializers or lower-speed variants within the broader product portfolio.

Replacement Considerations

Consult official Texas Instruments documentation for verified pin-compatible or functionally equivalent alternatives. No direct substitute part numbers are confirmed in public sources without additional engineering validation.