CYD36S36V18-200BGXC

Memory IC Overview

The CYD36S36V18-200BGXC is a 36-Mbit synchronous dual-port SRAM from the FullFlex36 family. It features a 1M x 36 organization with parallel interfaces on both ports. The device supports a maximum clock frequency of 200 MHz and delivers a typical access time of 3.3 ns. It operates on a 1.5 V or 1.8 V core supply voltage and is housed in a 484-ball PBGA package.

Memory IC Feature Summary

• True dual-port architecture enabling simultaneous independent access to the shared memory array from two separate ports.
• Built-in deterministic access control logic that manages address collisions during concurrent operations, providing busy flags and first-busy address readback.
• Configurable input/output standards allowing each port to independently select between LVTTL, Extended HSTL, 1.8 V LVCMOS, or 2.5 V LVCMOS levels.
• Advanced signal integrity features including Variable Impedance Matching (VIM) for output driver calibration and echo clocks to improve data transfer timing.

Memory IC Applications

• High-speed networking equipment requiring low-latency packet buffering
• Telecommunications infrastructure utilizing high-bandwidth data switching
• Industrial automation systems demanding deterministic real-time data processing

Memory IC Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and temperature range. Confirm RoHS compliance status as specifications may vary by production lot. Ensure the design accommodates the 484-ball PBGA footprint and thermal requirements for sustained operation at 200 MHz.

Memory IC Selection Notes

Select this component when simultaneous bidirectional data access is required without arbitration delays. Choose the pipelined mode for maximum throughput or flow-through mode for lower latency applications. Ensure the system power supply can support the specified 1.5 V or 1.8 V core voltage and that I/O levels match the selected PORTSTD configuration.

Memory IC Part Context

This part belongs to the Cypress FullFlex36 series of synchronous dual-port SRAMs. It shares architectural similarities with the FullFlex72 and FullFlex18 families but offers a 36-bit data width optimized for specific bus interface requirements. The device integrates advanced control logic for collision management and flexible I/O configurations within a high-density BGA package.

Memory IC Replacement Considerations

Direct replacements include other members of the FullFlex36 family such as the CYD18S36V18 or CYD09S36V18 if reduced capacity is acceptable. Verify pin compatibility and electrical characteristics before substituting with devices from other manufacturers offering similar dual-port SRAM architectures.

Memory IC FAQ

How does the device handle simultaneous writes to the same address?

The built-in deterministic access control logic detects address collisions and asserts a BUSY signal on the fifth clock cycle. It also provides the ability to read back the first busy address to manage the conflict deterministically.

Can the two ports operate with different I/O voltage standards?

Yes, each port independently selects its I/O standard via the PORTSTD pins. One port can be configured for LVTTL while the other uses 1.8 V LVCMOS or HSTL.

What is the function of the ZQ pins?

The ZQ pins are used for Variable Impedance Matching (VIM). Connecting a calibrating resistor between ZQ and ground allows the device to adjust its output driver impedance to match the transmission line impedance.