Overview
The CDC391DR is a clock fanout buffer (distribution) integrated circuit produced by Texas Instruments. This component is designed to distribute one input clock signal to six output signals, making it ideal for clock signal distribution in digital systems. The CDC391DR operates within a supply voltage range of 4.75V to 5.25V and is compatible with TTL input and output levels. It features a surface mount design in a 16-pin SOIC package with a width of 3.90mm. The device is characterized for operation from -40°C to 85°C, ensuring reliability across a wide temperature range.
Key Specifications
| Specification | Value |
|---|---|
| Differential - Input:Output | No/No |
| Frequency - Max | 100 MHz |
| Mounting Type | Surface Mount |
| Number of Circuits | 1 |
| Operating Temperature | -40°C ~ 85°C |
| Package | 16-SOIC (0.154", 3.90mm Width) |
| Ratio - Input:Output | 1:6 |
| Supplier Device Package | 16-SOIC |
| Type | Fanout Buffer (Distribution) |
| Voltage - Supply | 4.75V ~ 5.25V |
| Input | TTL |
| Output | TTL |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
Key Features
- Distributes one clock input to six clock outputs with minimum skew, ideal for clock distribution and clock-generation applications.
- TTL-compatible inputs and outputs, allowing easy integration with standard logic levels.
- Polarity control inputs to select true or complementary outputs.
- Distributed VCC and GND pins to reduce switching noise.
- High-drive outputs with -48-mA IOH and 48-mA IOL.
- State-of-the-art EPIC-ΙΙB BiCMOS design, significantly reducing power dissipation.
- Surface mount design in a 16-pin SOIC package.
- Operates within a wide temperature range of -40°C to 85°C.
- Lead-free and RoHS compliant).
Applications
The CDC391DR is suited for applications requiring reliable fanout of clock signals in digital systems. It is particularly useful in:
- Clock signal distribution in high-speed digital circuits.
- Systems requiring low skew clock signals, such as in telecommunications, computing, and networking equipment.
- Embedded systems and microcontrollers where precise clock signal distribution is critical.
- Any electronic system that needs to distribute a single clock input to multiple outputs efficiently.
Q & A
- What is the primary function of the CDC391DR?
The CDC391DR is a clock fanout buffer that distributes one input clock signal to six output signals.
- What is the maximum operating frequency of the CDC391DR?
The maximum operating frequency is 100 MHz.
- What is the supply voltage range for the CDC391DR?
The supply voltage range is 4.75V to 5.25V.
- What type of input and output signals does the CDC391DR support?
The CDC391DR supports TTL input and output signals.
- What is the operating temperature range of the CDC391DR?
The operating temperature range is -40°C to 85°C.
- What package type is the CDC391DR available in?
The CDC391DR is available in a 16-pin SOIC package.
- Is the CDC391DR lead-free and RoHS compliant?
Yes, the CDC391DR is lead-free and RoHS compliant.
- What is the moisture sensitivity level (MSL) of the CDC391DR?
The MSL is 1 (Unlimited).
- Does the CDC391DR support differential I/O?
No, the CDC391DR does not support differential I/O.
- What is the significance of the polarity control inputs in the CDC391DR?
The polarity control inputs allow for the selection of true or complementary outputs.
