ICL3221CA-T

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The ICL3221CA-T is a fast, low-power, 3.3V ECL to LVTTL translator. It is a single voltage level translator which allows ECL signals to be converted to CMOS/TTL voltage levels and vice versa. Its applications include bus transceivers, ECL/TTL interface logic and LVTTL/ECL signal level translation. The device is designed to operate in a 3.3V ECL applications, such as Digital Cross Point Switch (DXPS) and other synchronous memory applications.

The ICL3221CA-T consists of a latch, an output buffer, and an input buffer. The latch stores inputs before they are sent to the output buffer. The output buffer then translates the ECL signal levels to CMOS/TTL and drives them to the output. The output levels range from 0.8V to 3.0V and are compatible with TTL, LVTTL and low voltage ECL logic.

The input buffer is a high-speed CMOS/TTL to ECL translator, providing a low-voltage ECL input that can be used for many ECL-interfaced systems. It ensures that the input levels are compatible with CMOS, TTL and LVTTL logic. With a low external component count, it is an ideal solution for a wide range of ECL/TTL interface logic applications.

The ICL3221CA-T is ideal for use in a variety of applications. It is used in buses and synchronous memory systems, including parallel-to-serial converters, local and remote memory systems, and FIFO interfaces. It can also be used in TTL/ECL logic-level conversions, as well as 3.3V ECL applications such as digital cross point switches and other synchronous memory design applications. This device also has low power consumption and is suitable for high-speed applications.

The ICL3221CA-T performs its functions through a combination of static and dynamic techniques. In static mode, the ECL inputs are tested when the device is idle and the output configured accordingly. In dynamic mode, the inputs are tested at each rising or falling edge of the ECL input clock and the output state is updated accordingly. This allows for the greatest degree of flexibility in determining the output state.

The working principle of the ICL3221CA-T is simple. The device is used to convert ECL, or Emitter Coupled Logic signals, to LVTTL (Low-Voltage Transistor-Transistor Logic) signals. The device uses a latch, an output buffer and an input buffer to store and convert ECL signals to LVTTL signals. The output levels are adjustable and range from 0.8V to 3.0V, while the input levels are compatible with either CMOS, TTL or LVTTL logic levels.

In conclusion, the ICL3221CA-T is a fast, low-power, 3.3V ECL to LVTTL translator which accepts ECL as input and outputs LVTTL as output. It is used in a wide range of applications, including buses and synchronous memory systems, TTL/ECL logic-level conversions and 3.3V ECL applications. The device works by performing static and dynamic tests on the inputs and configuring the output accordingly. This makes the ICL3221CA-T an ideal solution for a variety of ECL/TTL interface logic applications.

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