MC10EP142FAR2G

Shift Registers Overview

The MC10EP142FAR2G is a 9-bit shift register from the onsemi ECLinPS family, designed for byte-parity applications. It supports serial/parallel data input and serial/parallel output with shifting in one direction (Bit 0 to Bit 8). The device operates in PECL mode (VCC = 3.0 V to 5.5 V, VEE = 0 V) or NECL mode (VCC = 0 V, VEE = -3.0 V to -5.5 V). Key electrical parameters include a typical shift frequency exceeding 2.8 GHz, propagation delays of 500 ps to 800 ps depending on conditions, and a supply current of 105 mA to 145 mA. It features dual differential clocks (CLK0, CLK1), an asynchronous master reset, and is housed in a Tape & Reel LQFP-32 package.

Shift Registers Feature Summary

• Supports byte-parity applications with 9-bit capacity and single-direction shifting
• Features dual differential clock inputs for flexible timing control
• Includes asynchronous master reset to override clock signals
• Provides open input default state with safety clamps for stability

Shift Registers Applications

• Byte-parity generation and checking circuits
• High-speed serial-to-parallel data conversion
• Parallel-to-serial data serialization
• ECL-based digital signal processing systems

Shift Registers Procurement Notes

Verify the specific ordering suffix 'R2G' corresponds to the 2000-unit tape and reel packaging configuration. Confirm that the component meets RoHS compliance standards as indicated by the manufacturer's documentation. Ensure compatibility with the required LQFP-32 footprint during PCB layout planning. Check for any moisture sensitivity level requirements associated with the package type before assembly.

Shift Registers Selection Notes

Select this component when designing high-speed ECL logic circuits requiring 9-bit shift functionality. It is suitable for applications needing byte-parity handling or fast data serialization. Consider the thermal management requirements due to the specified air flow needs at higher voltages. Evaluate the power supply constraints for both PECL and NECL operating modes to ensure proper termination and voltage levels.

Shift Registers Part Context

This part belongs to the MC10EP/100EP142 series of 3.3 V / 5 V ECL 9-bit shift registers. The 100 Series variants include temperature compensation, while the 10 Series does not. The device is part of the broader ECLinPS family, which offers high-performance logic solutions for demanding digital applications. It shares functional similarities with other devices in the series but is distinct in its 9-bit depth and specific pinout configuration.

Shift Registers Replacement Considerations

MC10EP142FAG

Shift Registers FAQ

How does the SEL input affect operation?

The SEL input switches between SHIFT and LOAD modes. When SEL is HIGH, the device shifts data; when LOW, it loads parallel data into the registers.

What is the function of the MR pin?

The Master Reset (MR) pin asynchronously resets all registers to zero, overriding the CLK0 and CLK1 inputs regardless of their state.

Can unused Q outputs be left unconnected?

Yes, to minimize power consumption, any Q output not used should be left unterminated, as they do not need to be terminated for the shift operation to function.