Texas Instruments DS90CR216AMTD-TI

Overview

DS90CR216AMTD-TI from Texas Instruments (formerly National Semiconductor) is a 21-bit Channel Link LVDS receiver IC that converts three LVDS data streams into parallel CMOS/TTL outputs with rising-edge strobe timing. It operates at up to 66 MHz, supports 173 MB/s bandwidth, features 48-lead TSSOP packaging, and delivers <90 mA worst-case supply current at 66 MHz over −40°C to +85°C.

For engineers reviewing the DS90CR216AMTD-TI datasheet, DS90CR216AMTD-TI pinout, DS90CR216AMTD-TI application, or DS90CR216AMTD-TI equivalent, this device is selected for high-speed serial-to-parallel conversion in display interface, industrial camera, and embedded vision systems where EMI reduction and cable size minimization are critical design constraints.

Technical Context

The DS90CR216AMTD-TI implements a dedicated LVDS receiver front-end with integrated PLL and TTL-level clock/data output stage. Its input accepts three differential LVDS data pairs plus one differential LVDS clock pair, all compliant with TIA/EIA-644. The internal PLL requires no external components and locks to incoming clock frequencies between 20 MHz and 66 MHz.

Output timing is synchronized to a rising-edge strobe on RxCLK OUT, with guaranteed setup/hold windows (RSRC/RHRC) as low as 4.5 ns / 4.0 ns at 66 MHz. Skew margin (RSKM) is specified at 400 ps at 66 MHz, enabling robust operation across interconnects with cable skew and jitter up to 250 ps.

Key Specifications

Pinout & Package

DS90CR216AMTD-TI uses a 48-lead TSSOP package (NS MTD48), 7.0 mm × 12.5 mm body, 0.5 mm lead pitch, with exposed thermal pad (not electrically connected). Pin assignments are validated per official National Semiconductor datasheet revision April 2011.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar LVDS deserializer applications.

Compared with DS90CR216AMTD-TI, DS90CR218MTD offers wider data width but lacks automotive qualification, while SN65LVDS32 provides basic LVDS reception without deserialization capability-neither is pin-compatible, and both require redesign of data path and timing architecture.

Availability

DS90CR216AMTD-TI is available at Aetrix Electronics and suitable for industrial camera interfaces, automotive display links, and medical imaging modules requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for DS90CR216AMTD-TI 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 acquired National Semiconductor in 2011 and maintains full technical and supply chain responsibility for legacy Channel Link products including DS90CR216AMTD-TI.

This device belongs to TI's high-speed interface portfolio, designed specifically to replace wide parallel buses in display, imaging, and machine vision systems using low-skew, low-EMI LVDS serialization.

FAQ

What is the function of the PWR DOWN pin on DS90CR216AMTD-TI?

The PWR DOWN pin on DS90CR216AMTD-TI is an active-low control input that places the device into ultra-low-power mode when asserted. In this state, all RxOUT pins are driven low, the internal PLL stops, and supply current drops to ≤55 μA. This feature allows dynamic power management in systems where the display or camera interface may be intermittently active, and it is fully specified across the −40°C to +85°C operating range for DS90CR216AMTD-TI.

Does DS90CR216AMTD-TI support 20 MHz input clock frequency?

Yes, DS90CR216AMTD-TI supports input clock frequencies from 20 MHz to 66 MHz, as confirmed in the "Features" section and electrical specifications table. At 20 MHz, the device maintains full functionality including PLL lock, valid RxCLK OUT generation, and correct 21-bit parallel output timing. The minimum clock specification is explicitly stated and tested across temperature and voltage ranges for DS90CR216AMTD-TI.

What package type does DS90CR216AMTD-TI use, and is it RoHS-compliant?

DS90CR216AMTD-TI uses a 48-lead TSSOP package (National Semiconductor package code MTD48), measuring 7.0 mm × 12.5 mm with 0.5 mm lead pitch. While the original 2011 datasheet does not explicitly declare RoHS status, TI's current product change notices confirm that DS90CR216AMTD-TI is manufactured in RoHS-compliant, lead-free form and meets JEDEC J-STD-020 moisture sensitivity level 3 requirements.

How does DS90CR216AMTD-TI handle floating LVDS inputs?

DS90CR216AMTD-TI includes internal failsafe bias circuitry on all LVDS inputs (RxIN+/- and RxCLK IN+/-). When inputs are floating or properly terminated without signal, the receiver outputs default to a HIGH state. If a valid clock is present, all RxOUT bits follow data; if the clock is also floating, outputs retain their last valid state. This behavior is documented in Note 8 of the DS90CR216AMTD-TI datasheet and ensures predictable startup and fault conditions.

What is the maximum allowable LVDS input common-mode voltage range for DS90CR216AMTD-TI?

The maximum allowable LVDS input common-mode voltage range for DS90CR216AMTD-TI is 0 V to 2.4 V, as specified in the "Recommended Operating Conditions" table. This range ensures compatibility with standard LVDS drivers operating at 3.3 V supply, and the receiver maintains full differential sensitivity (±100 mV thresholds) across this entire common-mode span. Exceeding 2.4 V risks violating absolute maximum ratings and may cause latch-up or parametric degradation in DS90CR216AMTD-TI.