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CDCU877ZQLR The Texas Instruments CDCU877ZQLR is a 1.8V Phase Lock Loop (PLL) clock driver designed for DDR II applications. It distributes one differential clock input to ten differential outputs.
Mfr Part #:

CDCU877ZQLR

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments CDCU877ZQLR is a 1.8V Phase Lock Loop (PLL) clock driver designed for DDR II applications. It distributes one differential clock input to ten differential outputs.
✓ Total Stock: 6,797 pcs

CDCU877ZQLR Available from 2 distributors

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
4,477 pcs
On Request
4477 pcs On Request 1 On Request On Request 0636+ On Request On Request
Husky International Electronic ✓
Non-Authorised Inventory information
2,320 pcs
On Request
2320 pcs On Request 1 On Request On Request N/A On Request On Request
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CDCU877ZQLR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Differential
Frequency
Input
Main Purpose
Mounting Type
Number of Circuits
Operating Temperature
Output
PLL
Ratio
Supplier Device Package
Voltage
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CDCU877ZQLR Description

Short technical summary and product information.

The Texas Instruments CDCU877ZQLR is a high-performance, low-jitter, low-skew clock driver. It is designed to distribute a single differential clock input to ten differential clock output pairs, making it suitable for Double Data Rate (DDR II) applications. The device operates at frequencies up to 400 MHz and features a low static phase offset of ±50 ps and low jitter of ±30 ps (cycle-to-cycle).

 

This clock driver supports SSTL-18 input and output standards and operates within a voltage range of 1.7V to 1.9V. The operating temperature range is -40°C to 85°C. The CDCU877ZQLR is available in a 52-ball MicroStar Junior BGA package, suitable for surface mounting.

 

Key features include a 1:10 input-to-output ratio, integrated PLL for synchronization, and compatibility with spread spectrum clocking for reduced EMI. The device also includes fail-safe inputs and a low current consumption of less than 135 mA. It meets or exceeds JESD82-8 PLL standards for PC2-3200/4300.

 

The CDCU877ZQLR is designed for applications requiring precise clock distribution and low noise. Its robust specifications make it a reliable choice for memory interfaces and other high-speed digital systems where clock integrity is critical.

CDCU877ZQLR Quick Information

Product Type: Clock Driver
Series: CDCU877
Canonical Name: CDCU877 Clock Driver
Subcategory: Application Specific ClockTiming

CDCU877ZQLR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

CDCU877ZQLR Features

  • 1.8V PLL clock driver for DDR II
  • Distributes one clock input to ten outputs
  • 400MHz maximum operating frequency
  • Low static phase offset ±50 ps
  • Low jitter ±30 ps cycle-to-cycle

CDCU877ZQLR Applications

  • Suitable for DDR2 memory systems
  • High-speed clock distribution
  • Reduced EMI applications
  • Synchronized clock outputs

CDCU877ZQLR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating frequency of the CDCU877ZQLR?

The CDCU877ZQLR operates at frequencies up to 400 MHz.

What is the supply voltage for the CDCU877ZQLR?

The operating voltage for the CDCU877ZQLR is 1.7V to 1.9V.

What is the operating temperature range of the CDCU877ZQLR?

The CDCU877ZQLR operates in a temperature range of -40°C to 85°C.

What package type is the CDCU877ZQLR available in?

The CDCU877ZQLR is available in a 52-VFBGA package.

What is the main purpose of the CDCU877ZQLR?

The main purpose of the CDCU877ZQLR is for Memory and DDR2 applications.

Does the CDCU877ZQLR have an integrated PLL?

Yes, the CDCU877ZQLR features an integrated Phase Lock Loop (PLL).

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