SY10E137JZ

Overview

The SY10E137JZ is an 8-bit binary ripple counter from the 100E series, manufactured by Microchip Technology. It operates with a minimum count frequency of 1.8 GHz and supports a supply voltage range of -4.2V to -5.5V. The device features differential clock inputs and data outputs, along with asynchronous enable (A_Start) and master reset (MR) functions. It utilizes a 28-pin PLCC package and includes internal pull-down resistors.

Feature Summary

• Features very high-speed binary counting capabilities with optimized edge rates for lower-order bits.
• Provides both synchronous and asynchronous enable pins to maximize operational flexibility.
• Includes a VBB output pin designed to serve as a switching reference for single-ended clock input use.

Applications

• Multiple frequency clock generation
• Counters in high-performance ATE time measurement boards

Procurement Notes

Verify that the specific JZ suffix corresponds to the Pb-Free matte-Sn finish variant documented in the ordering information. Confirm the package type matches the 28-pin PLCC specification. Ensure compatibility with the extended ECLinPS voltage range requirements before procurement.

Selection Notes

Select this component when high-frequency binary counting up to 1.8 GHz is required. It is suitable for designs needing flexible control via separate asynchronous and synchronous enable signals. Consider the 28-pin PLCC form factor for board layout constraints.

Part Context

This part belongs to the 100E family of high-speed logic devices. It is functionally related to other counters like the SY100E136 but provides 8-bit counting capability instead of 6-bit. The device maintains standard ECLinPS output edge rates for higher-order bits while ensuring fast transitions for the least significant bits.

Replacement Considerations

SY100E137JC

FAQ

How should the VBB pin be utilized?

The VBB pin serves as a switching reference for single-ended clock input use. It can source or sink only 0.5mA and should be bypassed to ground via a 0.01 µF capacitor if used.

What happens if differential CLK inputs are left open?

Leaving differential CLK inputs open causes the current source transistor of the input clock gate to become saturated, which upsets internal bias regulators and jeopardizes device stability.